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  • $40 hourly

    • 5.0/5
    • (74 jobs)
    **EXPERT VETTED BY UPWORK and among Top 1% talent on Upwork** I am a Full-Time Freelance IT consultant with more than 12 years of rich and varied experience in providing solutions to clients in various domains in the form of – • Full stack web application development • Enterprise applications development • Backend web services development • Desktop application development • Cloud infrastructure development I have extensive experience of developing applications in - Java, J2EE, Spring, JPA, Hibernate, Angular, Typescript and React Framework. BACKEND DEVELOPMENT - I have worked upon and developed backed of at least 100 different applications to date, which involves extensive experience working with Event Driven Architecture, Micro services architecture and Backend Web Services development. I also have strong hands-on experience and rely heavily upon TDD and BDD approach of Software development FRONT-END DEVELOPMENT - At the front-end, my expertise lies in working with – • JSP • JSF • Vaadin • JavaScript • HTML5 • CSS • Ajax • Bootstrap DESKTOP APPLICATION DEVELOPMENT - I have strong knowledge and experience of working with and developing Desktop applications using Java Swing and JavaFX. I have experience in developing applications for Mac, Windows as well as Linux. CLOUD INFRASTRUCTURE DEVELOPMENT - • 9x AWS Certified and "Microsoft Certified" Azure Solutions Architect Expert. • Extensive experience with using Docker, Kubernetes, Terraform. • Dockerisation and Orchestration, automating CI/CD Pipelines, VPN Setup, Monitoring and Logging, Cloud Cost Optimisation are my Forte. • Active user of AWS and Azure and excellent in picking cost-effective and secure solutions using these platforms. OTHER PROFICIENCIES - • Skilled in SQL as well as NoSQL programming. - Relational Databases - Postgres, MySQL, SQL Server, Oracle and DB2. - Non-Relational databases - MongoDB, DynamoDB • Skilled with ElasticSearch and Redis SOFT SKILLS – • Individualistic personality – who likes to find solutions. • Strong work ethic - my past work can vouch for this. • Positive attitude- comes in handy, while solving complex problems. • Excellent command over English language. • Excellent Communication skills. • Believes in Team work and joint efforts - can mingle into your current team easily. • Leadership skills - can lead and take up responsibility, even in difficult situations. • Highly dedicated personality - I don’t get bogged down by hiccups, and work to sail my way through them. As I am working in a highly dynamic field, so I keep updating myself with latest trends and developments in the field of software development, thus ensuring HIGH VALUE WORK for my clients. My technical capabilities, hardworking nature and past record of providing value to my clients can be vouched by client reviews on my profile. Thanks & Cheers!
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Cloud Computing
    DevOps
    Microsoft Azure
    Amazon Web Services
    CI/CD
    RabbitMQ
    SQL Programming
    Hibernate
    Microservice
    RESTful API
    Spring Security
    Spring Boot
    Spring Framework
    Java
  • $50 hourly

    • 5.0/5
    • (24 jobs)
    I'm a full stack software developer with experience in Java and Android projects. I focus on service and delivering the best experience to my clients, while providing quality software on a timely fashion. I have experience with various technologies to help fulfill any kind of job. I'm also open to having a chat with my customers, if they so desire, so we can arrange any details about the job. I also have experience with Cyclos Banking System Software, providing consultant services to small-medium banks. I've done several integrations with 3rd parties software with it, also developed plenty of aditional feature for it too, like bank statements and import of payments. I have experience on the following languages and technologies: -Java: Everything enterprise, Servlets, JSF, Primefaces and JPA. -JavaScript: pure Script, NodeJS and AngularJS. -PostgreSQL, SQLServer, SQLLite I also have experience providing products and solutions for financial institutions. My biggest desire is to serve my customers as if it was me requesting the product, I always strive to deliver the best software since I wouldn't settle for less.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Email Campaign Setup
    Android App Development
    Microsoft SQL Server Programming
    API Development
    MySQL Programming
    Java Servlet API
    JavaScript
    Java
  • $20 hourly

    • 4.0/5
    • (28 jobs)
    Shubham is having more than 5 years of experience in IT industry, working on cutting edge technologies providing a highly scalable and efficient system. Responsible for an effective delivery from the large engagement of engineers and business analysts for more than 5 years. Deep understanding of Services, Product development including determining the appropriate cost of services, solution defining processes & performance management Technology Stack on which I have worked Java Frameworks: Spring, Struts, Hibernate, JPA, Spring Security, Spring MVC, Spring Boot. Java EE Stack: Web services, XML, JAXB, JavaFX Web Technologies: HTML, CSS, JQuery, JSON , Angular 5/6/7/8 Application Servers: Tomcat, JBoss, Glassfish, AWS, AWS Lambda, Microsoft Azure, Google Cloud Database: Oracle, MySQL , Postgres ,MongoDB, N0sqlcouch DB Operating System: Ubuntu, Linux, Windows Other than this I am also working on Mifos X & Apache OFBiZ for product development Looking for an opportunity to work on long term projects on Java / Mifos X / Apache OFBiZ
    vsuc_fltilesrefresh_TrophyIcon J2EE
    OAuth
    AWS Lambda
    Web Application
    Spring Framework
    AngularJS
    Hibernate
    Amazon Web Services
    Java
    Node.js
  • $17 hourly

    • 4.3/5
    • (24 jobs)
    Boost your projects with an experienced Java Backend Developer with over 7+ years of expertise in creating strong and scalable solutions. I am skilled in Java, Spring Boot, and various backend technologies and I have the know-how to enhance your systems for top-notch performance. Let's work together to make your software ideas a reality, ensuring a smooth and future-proof foundation for your success, as I have developed around 50 + Java Backend Projects from Scratch. My skills: --------------- - Technologies: Java - Frameworks: Spring Framework, JPA, Apache Struts2, REST Services. - Database Access: JDBC, Hibernate, Spring(JDBC Template, Hibernate Template, Jpa Template), Spring Data. - Databases: MySQL, SQL Server, MongoDB, PostGres, Oracle - Web Application Server - Tomcat Apache, Nginx, AWS and Weblogic Server - Unit Testing Tools: JUnit, TestNG, Mockito - Reporting Tools: JasperReport, iText - Version Control Systems: SVN, BitBucket, GitLab, GitHub, VSS - Project management & Building tool: Maven, Ant --> A bit more about me. ----------------------------- I Have 7+ years of experience as a Senior Java Developer with expertise in Java 8 and above, Spring Boot, Microservices, Kafka, and cloud platforms such as AWS and GCP. - I have extensive experience working with the Spring ecosystem, including Spring Boot, Spring MVC, Spring Data, and Spring Security, to develop enterprise-grade applications - Have experience in building web applications using Java-based technologies such as Java Servlets, JavaServer Pages (JSP), and JavaServer Faces (JSF) - Proficient in using Java concurrency and multithreading techniques and key knowledge of Junit testing and test-driven development (TDD). - Implements HTML/CSS/JavaScript for user interface, stores data in a MySQL database, utilizes AWS S3 for cloud-based storage & integrates. - Designed and developed a scalable and reliable Kafka-based streaming pipeline to process millions of events per second in real-time and Implemented Kafka Connect to integrate Kafka with other data sources such as databases and messaging systems. I also believe that communication is the best solution to win any project. So Let’s hop on a quick call to discuss the project in a more detailed way. 🙂 WHY WORK WITH ME -------------------- * High availability * High-end monitoring and debugging * Great app performance * Details make the fabric, so I pay attention to them * Professional applications I can collaborate with you on communication & project management processes using Upwork, JIRA, Trello, and SLACK while using the Agile & Scrum methodology. I will make sure to update you on a regular basis. It would be helpful if you could send me your required documents or task list so that I can analyze your project and provide you with an estimate of the time and cost to finish your project promptly. * No Delays* * 100% Transparency* * 100% Success* I pay special attention to the quality assurance of the products and services I deliver. I believe communication is the key to every successful project. I look forward to discussing your project with you and finalizing the details. Best Regards Kailash
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Git
    MVC Framework
    Spring Boot
    Amazon ECS for Kubernetes
    Core Java
    Jakarta Server Pages
    JavaScript
    React
    Spring Framework
    Database Architecture
    Hibernate
    DevOps
    Java
    AngularJS
  • $22 hourly

    • 4.9/5
    • (78 jobs)
    Zoho One Consultant (CRM, Creator, Analytics, Zoho Flow, Zoho Projects,Zoho Forms) and Implemention Partner ✔Ex-employee of Zoho with 20+ years of IT experience. 🏆Best Zoho Partner of the Year award winner 💡 Expert and skilled development Team of 50+ members 🥇100+ Happy Clients and 300+ projects successfully implemented on Zoho One services and Salesforce ✔Experience in Building Vertical CRM Solutions ✔ Deluge script experts and build complex workflows and look&feel that are not supported directly in ✔Build multiple extensions and published in Zoho marketplace Zoho platform ✔ Integrations specialist 🔸 Zoho CRM + Zapier 🔸Zoho CRM + Zoho Projects 🔸 Zoho CRM + Zoho Booking 🔸 Zoho CRM + Zoho Sign 🔸 Zoho CRM + Zoho Flow 🔸 Third party systems include Amazon, Ebay, BigCommerce, Xero, QuickBooks Online and Desktop, Stripe, Authorize.net, Shipstation and much more ✔Expertise on Zoho One that includes Zoho Creator, Zoho CRM, Zoho Analytics, Zoho Books, Zoho Desk, Zoho Recruit ✔Projects implemented for verticals that include Inventory and Order Management, Subscription Management, Health Care, Leave Tracking, Field Service Management ✔Experience in Salesforce DX setup and creating Managing Packagaes ✔ Assisted clients to clear the Salesforce Security Review and publish Managed packages in Salesforce AppExchange ✔ Salesforce Integration with 20+ third party systems across verticals
    vsuc_fltilesrefresh_TrophyIcon J2EE
    AWS Application
    AWS CloudFront
    Salesforce App Development
    Zoho Analytics
    Amazon MWS
    Zoho Platform
    eBay API
    MEAN Stack Administration
    Zoho Sprints
    Zoho CRM
    Zoho Creator
    AWS Lambda
  • $30 hourly

    • 5.0/5
    • (30 jobs)
    I am highly experienced Java developer with 12 years of industry experience and have been specializing in solutions using Java CMS enterprise platforms like Bloomreach CMS and Adobe Experience Manager (AEM) for the past 6 years. I've built products with AEM 6.5 and have experience with migrating to Cloud Service. In 2023, I was certified as both Adobe Experience Manager Sites Developer Professional ( AD0-E123 ) and Adobe Experience Manager Sites Developer Expert ( AD0-E134 ). Having solid experience working with various JavaScript frameworks like Angular and ReactJS and the drive to pick up new ones when necessary. I am also familiar with Less, SCSS, and CSS and the concepts of building responsive sites using Bootstrap and AEM Grid. Constantly strive to write clear and maintainable code and fully document my code to ensure future developers have a clear understanding of all methods and classes. Also, I will gladly provide any additional documentation or training materials requested, which will be well-structured and well-written. A strong problem solver, skilled at exploring and debugging complex problems to get software applications back on track when strange errors or edge-case scenarios arise.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Scrum
    Elasticsearch
    Spring Framework
    CMS Development
    Adobe Experience Manager
    Java
    Docker
  • $20 hourly

    • 4.8/5
    • (50 jobs)
    Over the last 14 years, I have almost created 33 android apps for different businesses and personal use of my clients. Great experience in Java, Kotlin , Android SDK, Google's Android relates service and Android Studio. I always welcome new ideas and love to convert them in smart android application. During different applications development period I have gone through many different challenges and finish all of them with my smart work. I have been work in all below area and also willing to explore more with new things. Material Design with backward compatibility, SQL/SQLite databases, JSON Bese data parsing, RestFull Web service integration, Room, Audio/Video Streaming, Social Network - Facebook, Twitter integration, Google Map and other Google services, Other open source library integration and modification according to requirement. I am familiar with MVVM,MVC and Clean architecture pattern. I am cost effective but quality work provider.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Facebook Development
    Google Maps API
    Twitter/X API
    Android Room Persistence
    Core Java
    SQLite
    Firebase
    QR & Barcode Scanner
    Kotlin
    Mobile App Development
    API Integration
    Application Security
    Android App Development
    User Authentication
    In-App Purchases
  • $40 hourly

    • 5.0/5
    • (45 jobs)
    If you are looking for a professional & experienced Java, Groovy, or Grails developer then your search is over. With more than 10 years of experience I have a full grip on the below-mentioned tools and technologies: Groovy, Grails, Java, Spring Boot, SparkJava, REST APIs, Google APIs. Docker, AWS MySql, PostgreSQL, MongoDb, MariaDB, JavaScript, Typescript and JQuery libraries, Bootstrap, W3CSS Git, GitHub, BitBucket, IntelliJ Idea, Postman, and a many more. I prefer to use project management tools like JIRA, Redmine, Asana, or Trello.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Apache Groovy
    Grails
    Bitbucket
    Hibernate
    MySQL
    Web Application
    RESTful API
    GitHub
    PostgreSQL
    Java
    Docker
    Git
    MongoDB
  • $40 hourly

    • 4.3/5
    • (46 jobs)
    Greetings All, I'm a web programmer with 9+ years of experience in web development. I have developed different kinds of projects, including eCommerce systems, CRM software, corporate websites, APIs and other internal scripts. • A quick learner with a penchant of performing under pressure. strong team player with excellent interpersonal and communication skills, strong analytical and problem solving skills. • Overall 9+ years of experience in development of Mobile, Web & Enterprise applications using PHP5, JAVA and J2EE Technologies. • Hands on experience in Core Java, Servlets, JSP, JDBC, Spring, SpringBoot, Hibernate, JPA, JavaFX, JacpFX. • Hands on experience with DevOps, Shell Script, Docker, Docker Compose, Jenkins, AKS, Azure • Hands on experience in NodeJS, Angular, Angular 2-rc3, Ionic Framework. • Hands on experience in ReactJs and Redux Frameworks. • Hands on experience in MySQL, Postgres, Oracle, MongoDB, ArangoDB, SQL Server. • Hands on experience in Apache, Weblogic, Glassfish, JBoss/Wildfly and Tomcat web servers. • Hands on experience in Ejabberd, Openfire and Prosody XMPP Chat servers. • Hands on experience in WebRTC. • Knowledge of Eclipse, Intellij Idea, WebStorm tool for the development of java projects & Node/Angular. • Knowledge of Adobe DW, Aptana studio tool, PHPStorm for the development of PHP projects. • Knowledge of Business Process Management Tool jBPM5.3. Let me know about your goals and I will lead your project to success! ;)
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Spring MVC
    Kotlin
    Java
    Hibernate
    Spring Security
    jQuery
    Apache Struts
    Spring Framework
    PostgreSQL
    Spring Boot
    JavaScript
  • $50 hourly

    • 5.0/5
    • (32 jobs)
    An agile and ambitious software engineer with a strong technical background who possesses self-discipline, hardworking, quick learning, good team spirit, and honesty. 13+ years of experience in software development for enterprise-level applications using arrays of technologies. ➢ Strong Programming skills, in designing and implementation of multi-tier applications using Spring Boot, Spring MVC, Java-J2EE, ASP.Net MVC, .Net Core, Node, Express, Struts, JSF, CDI, Spring Data JPA, JPA, Hibernate, Spring Rest, Spring Data JPA, Spring Security, Kafka, liquibase etc. ➢ Efficient in working with Dockerfile, Docker-Compose & Docker Containers. ➢ Extensive experience in working with JavaScript/TypeScript languages, frameworks, libraries, and technologies such as React JS/ Angular. ➢ Extensive experience in working with CSS3, HTML5, SCSS, and their frameworks such as Bootstrap, Material UI, etc. ➢ Strong experience in all the phases of software development life cycle including requirements gathering, analysis, design, implementation, deployment and support. Technologies I work on: J2EE - Spring - Spring - Boot - Spring- Security - Maven/Gradle - Apache Kafka - Redis - JMS/Rabbit MQ - Spring Data JPA - Hibernate JavaScript : - ES6 - jQuery - Angular - React JS - Node - Express - TypeOrm/ Sequilize Python: - Flask - Django Testing: - Rest Assured - Junit - TestNG - Mockito Reporting : - Jasper Report. DB: - Mysql - MSSQL - PostgreSQL - Oracle - MongoDB
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Spring MVC
    Microservice
    API Development
    SQL
    Node.js
    TypeScript
    Python
    React
    API Integration
    Spring Framework
    JHipster
    Spring Boot
    Java
  • $15 hourly

    • 4.9/5
    • (65 jobs)
    A Goal-oriented and hands-on Senior IT professional, with more than 26 years of experience at handling all aspects and phases of software life cycle. I am hands-on - 1. In developing applications in Java / J2EE, Wordpress technologies. Worked on Spring, Struts and hibernate, Webharvest and OfBiz frameworks. 2. Manual testing, database testing and automation testing. The tools I have been using for automation include Selenium WebDriver, Selenium RC and Selenium IDE. 3. Experience in database migration, Web scraping, BOT development. Delivered many complex application successfully. I have strong domain and technology knowledge and experience which helps me in unleashing the possibilities that the cutting edge technology can bring for business. I have been providing development and testing solution and services covering all major modern platforms and technologies
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Unit Testing
    Selenium
    Selenium WebDriver
    Data Scraping
    WordPress
    Java
    Database Testing
    Regression Testing
    Functional Testing
  • $27 hourly

    • 4.7/5
    • (40 jobs)
    𝟏𝟓𝐊 𝐇𝐨𝐮𝐫𝐬 𝐥𝐥 $𝟐𝟎𝟎𝐊 𝐄𝐚𝐫𝐧𝐞𝐝 𝐥𝐥 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 I am Mohit Mali, a seasoned professional with over 8 years of expertise in developing Web and Mobile applications. Over the past 3 years, I have also assumed the role of a proficient project manager, overseeing successful project completions. Throughout my career, I have spearheaded the creation of over 50 products and applications, strongly emphasizing crafting engaging UI themes and seamless extensions. My commitment lies in delivering solutions that boast aesthetic appeal and excel in functionality, speed, and optimization. If you are seeking a dedicated professional who prioritizes excellence and efficiency in every project, I invite you to reach out. 𝐋𝐞𝐭'𝐬 𝐜𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐞 𝐭𝐨 𝐛𝐫𝐢𝐧𝐠 𝐲𝐨𝐮𝐫 𝐢𝐝𝐞𝐚𝐬 𝐭𝐨 𝐟𝐫𝐮𝐢𝐭𝐢𝐨𝐧!
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Serverless Stack
    UI/UX Prototyping
    GitLab
    Internet of Things
    JSON
    AWS Lambda
    Blockchain Development
    Serverless Computing
    Jakarta Server Pages
    Technical Project Management
    Docker
    Front-End Development
    GitHub
    Android SDK
    Mobile App Development
    Android App Development
    Java
  • $25 hourly

    • 4.5/5
    • (15 jobs)
    Self oriented, motivated, team player and full stack software engineer posses 10+ years of experience with deep technical knowledge and high interpersonal skills, participated in many types of projects serving different industries and utilized many types of technologies and frameworks.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    JHipster
    API Development
    Angular
    TypeScript
    Spring Boot
    RESTful Architecture
    Hibernate
    Java
    SQL
  • $35 hourly

    • 4.9/5
    • (20 jobs)
    🏆 𝗨𝗣𝗪𝗢𝗥𝗞 𝗘𝗫𝗣𝗘𝗥𝗧 𝗩𝗘𝗧𝗧𝗘𝗗 𝗙𝗥𝗘𝗘𝗟𝗔𝗡𝗖𝗘𝗥 💪 𝗔𝗺𝗼𝗻𝗴 𝘁𝗵𝗲 𝗧𝗼𝗽 𝟭% 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗲𝗿 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 🎖️ 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 𝘄𝗶𝘁𝗵 𝗼𝘃𝗲𝗿 𝟭𝟱𝟬𝟬𝟬 𝗛𝗼𝘂𝗿𝘀 𝗼𝗳 𝘄𝗼𝗿𝗸 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 👍𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 ✔︎ 𝗠𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝟮𝟬 𝘆𝗲𝗮𝗿𝘀 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗮𝗻𝗱 𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀. Greetings! I am a seasoned Senior Full Stack Engineer with over 20 years of extensive experience in software and solutions development. My forte lies in designing and developing intelligent and adaptive applications across various domains, including desktop, web, mobile, embedded systems, and IoT. Key Skills and Expertise: ✅ Web Applications Development: Proficient in J2EE, PHP for web applications and REST API development. Backend expertise in Java, PHP, and technologies like J2EE, JSF, JSP, Servlets, Primefaces. Frontend proficiency in Bootstrap, ReactJS, jQuery, JavaScript, HTML, CSS. Database mastery in MySQL and Derby. ✅ Embedded Systems Development: Extensive firmware development for microcontrollers like ARM, STM32, ESP32, Arduino, and more. Specialized in Secure Embedded Applications with ARM Trustzone, Infineon's Optiga Trust M, and STM32 ST-SAFE. Expertise in hardware protocols (UART, SPI, I2C, USB, Bluetooth, LoRa, WiFi, Zigbee). In-depth knowledge of TLS (mbedTLS) and PKI systems. ✅ IoT Application Development: Design and development of Internet of Things (IoT) applications with technologies like LoRa, 4G NB-IOT, and ZigBee. Experienced in motor control applications, including full-bridge and PWM for robotics. ✅ Image Processing/Digital Signal Processing: Creation of signal processing modules for images and digital signals. Implementation of algorithms for image pre-processing, especially for OCR applications. ✅ Artificial Intelligence: Integration of machine learning algorithms to develop innovative solutions. ✅ Web Automation and Crawlers: Development of web automations for data scraping and process automation. ✅ Cloud Services: Proficient in Amazon Web Services (EC2, S3, RDS). ✅ Application Security: Experience in reviewing application security with Veracode static and dynamic scan tools. Programming Languages: Java (J2SE, J2EE, JSF, JDBC, JPA, Hibernate), C/C++(QT, Embedded C), Matlab, PHP (CakePHP, Wordpress), JavaScript (Node.JS, React), Python If you're seeking a dedicated professional to transform your concepts into functional solutions within a set timeframe, let's connect! I am ready to bring my wealth of experience to your projects.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Java
    Machine Learning
    OCR Algorithm
    Firmware Programming
    Bluetooth LE
    Computer Vision
    Python
    C++
    JavaScript
    Embedded C
    Embedded System
    Real-Time Operating System
    Firmware
    C
  • $50 hourly

    • 5.0/5
    • (53 jobs)
    I am the Founder & CTO of IOanyT Innovations which is a software development company formed in 2016 and currently employs more than 50 developers. I have over 22 years of experience with organizations like Hewitt, Xerox & Cognizant. Highly accomplished, innovative and results-oriented technology executive with ~22 years of experience in building complex software applications/systems, technology infrastructure and technology businesses to drive revenue growth, expand customer base and increase profitability. Proven track record in implementing technology solutions for a variety of businesses including HRO, Legal, Workforce Management, Call center, Telematics, IoT, Insurance, Transportation, Warehouse and Manufacturing. Built multiple enterprise products with highly scalable architecture and technologies and have successfully executed several projects Globally. My expertise focuses on strategic planning, Innovations, building and extending large software systems and infrastructure, team management, technical architecture, design, product management, program management and project management for high availability, high volume transactional systems, websites and online and mobile applications. Our offerings: - Software Development (Web and Mobile) ----- Java ----- Python ----- NodeJS ----- Angular ----- React - All things AWS and GCP - Security - Advanced Network - Server-less Architecture and development - Cloud migrations - Cloud architecture - Cloud cost optimization - Compliance: HIPAA/SOC2 - IaaS/PaaS/SaaS - Disaster Recovery - Storage solutions - Databases - IoT - AWS IoT Core - Apache Airflow Certifications: - AWS TCO and Cloud Economics - AWS Technical Professional - AWS Business Professional - AWS Certified Solutions Architect - Associate - AWS Certified Solutions Architect – Professional - AWS Certified Advanced Networking - Specialty
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Machine Learning
    Artificial Intelligence
    Network Security
    React
    Google Cloud Platform
    Web Application
    AWS Glue
    API Development
    Node.js
    Cloud Architecture
    Amazon Web Services
    Internet of Things Solutions Design
    AngularJS
    Python
  • $25 hourly

    • 4.9/5
    • (15 jobs)
    I have been experienced in web application (J2EE, JSP,JSF, Struts,Rich Faces, Hibernet,JPA, Oracle, MSQL, MYSQL, Apache Tomcat,Jboss,Weblogic) development. Beyond application development, I am skilled in high-level requirements gathering, technical design analysis, application modeling, implementation planning and support. My goal is to create ongoing working relationship with my clients. I am very passionate to my work and committed to deadlines.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    WildFly
    Spring Framework
    Java Persistence API
    Oracle PLSQL
    Hibernate
    Richfaces
    Jakarta Server Pages
    MySQL Programming
    Jakarta Server Faces
  • $20 hourly

    • 4.6/5
    • (45 jobs)
    I have 15 years of experience in Java/J2EE technologies and I have been involved in analysis, design and coding. Key Skills: Core Java, Multithreading, Strong knowledge of OOPS concepts J2ee Technologies: Spring Boot, Spring Security, JWT, Struts, jQuery, BootStrap, Hibernate, jJPA, EJB, Servlet, JSP,JMS, ActiveMq,JDBC, XML (DOM & SAX Parser) JNDI, XML, AJAX, DHTML, JavaScript, CSS, Web Services AXIS AND JAX-WS, Rest API's, Quartz Scheduler Framework, JPA, Geo API . Database: Oracle, Mysql, DB2, MongoDB Other Tools: Eclipse, JUnit , AGILE, UML, Design Patterns, J2EE Design Patterns Servers Apache HTTP Server 2.0, Web Sphere Application Server 6.0 ,JBoss 5.0, Tomcat 8, GIT, SVN, Maven .
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Core Java
    Elasticsearch
    Database Architecture
    RESTful API
    Spring Boot
    AJAX
    Hibernate
    Apache Struts
    JavaScript
    HTML
    MongoDB
    MySQL
    JDBC
    Spring Framework
  • $120 hourly

    • 5.0/5
    • (31 jobs)
    🥇Expert-vetted (top 1%) Upwork freelancer. 💡Top AI voice in LI. 👔 10+ years of experience on executive tech positions. ⭐️⭐️⭐️⭐️⭐️ "Ivan seamlessly navigated the complexities of the non-deterministic nature of OpenAI/LLMs. Highly recommend! Ivan - Exceptional work on our POC. Thank you." ⭐️⭐️⭐️⭐️⭐️ "Amazing to work with. Went above and beyond expectations." ⭐️⭐️⭐️⭐️⭐️ "Ivan understands AI and LLMs really well, he’s a great communicator and transparent about his methods and efforts." ----------------------- Hello! I'm all about technology and the magic it brings to our lives. . There's something truly special about building things from scratch and watching them take off. With a solid foundation in tech, I have a particular interest in the final product — its user experience, design, and the customer's journey. Collaborating with product and business teams is something I thoroughly enjoy, as it brings together different perspectives for a common goal. My area of expertise lies in Artificial Intelligence, Machine Learning, and Natural Language Processing. Here are some of the services I commonly offer: - Strategic AI audits and guidance - Elevating existing products with AI enhancements - Designing and developing new AI-centric solutions - PoC/MVP for AI projects I've had the privilege of working with over 50 companies, including notable names like UBS, Yahoo, STC, and Hitachi. This experience has allowed me to contribute significantly to the growth and transformation of various products. Interested in exploring how AI can revolutionize your product? I'd love to chat about your vision and how we can bring it to life. Feel free to reach out, and let's start a conversation about your next big step in innovation. ----------------------- Some of my AI and ML skills include: ✅ Data Science and Machine Learning expertise including Deep Learning, Natural Language Processing, and Computer Vision using TensorFlow, PyTorch, Keras, scikit-learn, Numba, etc. ✅ API Development and Integration, including external API integration like OpenAI API. ✅ Expertise in Reinforcement Learning and its applications in complex environments using libraries like OpenAI Gym, Stable Baselines, and RLlib. ✅ Advanced skills in data preprocessing, feature engineering, and dimensionality reduction techniques for machine learning models. ✅ Proficiency in time-series analysis and forecasting using ARIMA, LSTM, and Prophet for predicting future trends. ✅ Development of chatbots and virtual assistants using platforms like Dialogflow, Rasa, and Microsoft Bot Framework. ✅ Experience with Generative Adversarial Networks (GANs) for creative applications such as art generation, style transfer, and data augmentation. ✅ Implementation of recommendation systems using collaborative filtering, content-based, and hybrid approaches. ✅ Proficient in big data analytics using Apache Spark, Hadoop, and related ecosystems for handling large-scale data processing. ✅ Knowledge of edge computing and deploying AI models on edge devices using TensorFlow Lite, PyTorch Mobile, and ONNX. ✅ Expertise in computer vision tasks like object detection, image segmentation, and facial recognition using OpenCV and Dlib. ✅ Strong background in mathematics and statistics, essential for algorithm development and model optimization. ✅ Experience with cloud platforms like AWS, Google Cloud, and Azure for deploying and scaling machine learning models. ✅ Capable of conducting AI-driven research and development, staying at the forefront of emerging technologies and methodologies. ✅ Ability to communicate complex AI/ML concepts to non-technical stakeholders and collaborate effectively with interdisciplinary teams. P.S. Curious about the future of AI in your industry? Drop me a message, and I'll share my insights and predictions!
    vsuc_fltilesrefresh_TrophyIcon J2EE
    RESTful Architecture
    RESTful API
    NGINX
    Web Application
    Database Architecture
    API Integration
    Elasticsearch
    Hibernate
    Spring Framework
    Java
    Docker
    Microservice
    Apache Kafka
    Kubernetes
    Architectural Design
  • $33 hourly

    • 4.9/5
    • (62 jobs)
    12+ years of experience in Salesforce Implementation and customization. Technically I have sound experience in configuration features like Data Modeling, Security, Flows, Approvals, Apex, LWC, AURA, Lightning Record Pages, Profiles, Reports and Dashboards etc. I have implemented Document Generation and E-Signature in many projects using apps like Conga, Nintext, DocuSign, EcoSign, HelloSign, S-Docs, PDF Butler, Sign Butler. ➤ Expertise in Salesforce Products ✅ Sales Cloud ✅ Service Cloud ✅ Community Cloud ✅ Marketing Cloud ✅ Slack ✅ Field Service Lightning ✅ Salesforce Integration ➤ Technical Expertise ✅ Salesforce Development & Customization ✅ Salesforce Implementation/Integration ✅ Apex, AURA, LWC, VisualForce Development (VF Pages) ✅ Apex trigger, Apex Scheduler, Apex Batch, Queueable ✅ REST and SOAP API ✅ Salesforce Integration ✅ Force.Com Development & Integration ✅ Aura Component ( Lightning Components ) ✅ Lightning Web Component (LWC) ✅ Workflow | Approval Process | | Lightning Flows ✅ Partner Portals ✅ Slack Integration ✅ Appexchange App Development and Listing ➤ Salesforce Certifications ✅ Salesforce Certified Platform App Builder ✅ Salesforce Platform Developer 1 ✅ salesforce administrator ✅ Salesforce Sales Cloud Consultant ✅ Salesforce Service Cloud Consultant ✅ Salesforce Experience Cloud Consultant ✅ Salesforce Field Service Lightning Consultant ✅ Salesforce Data Architect ✅ Salesforce Application Architect ✅ Salesforce Sharing and Visibility Designer Salesforce Architect | Salesforce Consultant | Salesforce Developer | Salesforce Administrator
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Salesforce Marketing Cloud
    SOQL
    JavaScript
    Salesforce Lightning
    Visualforce
    jQuery
    SOSL
    Salesforce Service Cloud
    Apex
    Salesforce Sales Cloud
    Salesforce App Development
    Salesforce CRM
    Salesforce
    Java
  • $30 hourly

    • 4.4/5
    • (18 jobs)
    7+ years of experience in Salesforce and Java. Top rated Developer by upwork. ---------------------------------------------------------------------------------- I am open to different working models such as onsite, offshore, hourly or short period projects. • OCJP 7 Certified (Java) • Salesforce.com Certified Platform Developer I • Salesforce.com Certified Platform Developer II • Salesforce.com Certified Administrator (ADM 201). • Salesforce.com Certified Platform App Builder • Salesforce.com Certified Advance Administrator (ADM 211). • Salesforce.com Certified Sales Cloud Consultant. • Salesforce.com Certified Service Cloud Consultant. Programming Languages Development (Windows/Web) Skills: ✅ JAVA ✅ Salesforce ✅ Linux ✅ Netsuite ✅ node js ✅ Angular JS -------Salesforce------- • Classic • Lightning • Sales Cloud Implementation • Service Cloud Implementation • Salesforce Integration • Appexchange Apps development • Community Cloud Implementation • Salesforce Marketing Cloud Implementation • Visualforce Development • Trigger • Setup • Configuration -------Java------- • J2EE • Spring • Hibernate • Core Java • Struts -------Front End------- • Html • css • Bootstrap • Jqeury • Java script I have already helped many Clients across all over world based on their business requirements.I would really appreciate if you give me an opportunity to discuss over the call. Your project will be completed on time with 100% quality and accuracy.Thanks for your time and I expect for closer dialogue with you soon.Let's create great things together! It will be exciting! Regards, Tirth Patel
    vsuc_fltilesrefresh_TrophyIcon J2EE
    J2SE
    Apex
    Salesforce CRM
    HTML5
    Hibernate
    JDBC
    JavaScript
    Spring Framework
    Java
  • $45 hourly

    • 5.0/5
    • (19 jobs)
    I am a Software Developer with around ten years of experience in Java, developing both the back-end and front-end of multiple software solutions. I have experience with each layer of development, from creating database structures and stored procedures to designing and developing the user interface of the applications. My knowledge and experience includes: - Programming languages: Java, PHP, C#, Python. - Frontend frameworks/ technologies: ZK, Vaadin, JSP, HTML5, Jquery, Javascript, AngularJS, AJAX. - Backend frameworks: Spring, Spring Security, Spring Batch, JSF, Hibernate, Mybatis. - Versioning Control: Git, SVN. - Databases: Oracle, MySQL, SQLite, SQL Server, Oracle Database, PostgreSQL - SOAP and REST web services - Tools: Maven, Ivy, JasperReports I'm always motivated with the idea of new challenges and learning new technologies. I'm willing to make the best effort to do an excellent job, even if it takes extra work researching the way to solve a problem. I have several years working on financial institutions, so I have experience working under pressure, meeting really strict deadlines and communicating with the users to evaluate options and generating solutions for their needs. I'm used to work as a team member as well as independently, following instructions or coming up with the solutions that best suites the needs of the business.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Tableau
    ZK Framework
    API Integration
    API
    Database Architecture
    Spring Boot
    RESTful Architecture
    Database Design
    Web Application
    Vaadin
    MySQL
    Java
    Spring Framework
    iBATIS
    RESTful API
  • $40 hourly

    • 5.0/5
    • (30 jobs)
    Seasoned software developer with 11+ years of experience, worked as a senior software engineer, software development team leader, system architect, business analyst, and project manager. Accurate and well-organized, always looking for elegant and efficient solutions. Experienced in: ============ ✅ Web development (mostly in React and Angular with Java as server-side technology) ✅ Mobile software development (mostly in React Native) Technology background: =================== ✅ Programming languages: Java, JavaScript, Android, HTML ✅ Client-side: Angular, ReactJS, React Native, Node JS, HTML5, CSS, Bootstrap and other JS/CSS frameworks ✅ Web Services: RESTful, SOAP ✅ DevOps: Linux, AWS, Docker, TCP/IP based networks ✅ Databases: PostgreSQL, MySQL, Oracle, SQL Server, Firebase, SQLite, MongoDB ✅ Java development: Spring Boot, Spring, Hibernate, Core Java, etc. ✅ Mobile development: Android, iOS ✅ Version Control: Git, SVN ✅ Unit Testing: Junit, DBUnit, TDD Project Management tools: ======================= ✅ JIRA ✅ Trello ✅ Pivotal Tracker Developing a good rapport, and regular communication is important to me. It ensures the project is completed to the specific guidelines required. I pride myself on providing the highest quality of work, and will never complete a project until the client is 100% satisfied.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    CSS
    JHipster
    Splunk
    Web Service
    Redux
    Hibernate
    Spring Boot
    Web Application
    Session Initiation Protocol
    Spring Framework
    React Native
    Java
    React
    AngularJS
    HTML5
    JavaScript
  • $30 hourly

    • 5.0/5
    • (10 jobs)
    Over the last 15 years, I have developed a wide range of applications using Java technologies. Spring / Spring Boot, Hibernate JSP, JSF, Apache Wicket, Apache Struts HTML.CSS, JavaScript, jquery, mySql, postgreSQL, Oracle. My skills are confirmed by certifications: VMWare Spring Certified Profesional OCP (Oracle Certified Professional Java SE 17) SCJP (Sun Certified Java Programmer) SCWCD (Sun Certified Web Component Developer).
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Spring Security
    Spring Boot
    PostgreSQL Programming
    Hibernate
    Jakarta Server Pages
    Java Servlet API
    Apache Wicket
    SQL
    Spring Framework
    SQL Programming
    Java
    JavaScript
  • $50 hourly

    • 4.8/5
    • (83 jobs)
    Expert developer in full stack development Real project experience with AI development, including ChatGPT, ImageToVideo, Assistant, RAG
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Selenium
    React Native
    Kotlin
    Spring Framework
    Test Design
    Microservice
    JavaFX
    Selenium WebDriver
    Apache Kafka
    Spring Cloud
    Python
    Java
    JavaScript
    Kubernetes
  • $35 hourly

    • 5.0/5
    • (2 jobs)
    Hello! I'm an AI Expert with a flair for transforming complex challenges into actionable solutions. With over 2 years in the industry, I've honed my skills to the point where I can confidently say, AI isn't just my profession—it's my passion. Some highlights from my career: Chatbots & Virtual Assistants: I played a pivotal role in crafting a lead-closing chatbot for a million-dollar enterprise. Predictive Analytics: For e-commerce company, I implemented a recommendation system that increased their cross-sell rate by 18%, substantially elevating their average transaction value. The AI landscape is vast and ever-evolving, and I am always at the forefront, ready to harness its potential for my clients. I believe that every challenge is unique, and so should be its AI solution. Let's collaborate and create something exceptional for your business!
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Artificial Intelligence
    Java
  • $15 hourly

    • 4.9/5
    • (1 job)
    Hi, I'm a software engineer with several years of professional and development experience, working on JAVA backend development. Currently, I am integrated into the backend development team.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    JSON API
    Swagger
    Computer Skills
    Hibernate
    Web Application
    Java
    Spring MVC
    Spring Boot
    Grails
    Jakarta Server Faces
    Jakarta Server Pages
    Apache Groovy
  • $55 hourly

    • 5.0/5
    • (5 jobs)
    Distributed and highly concurrent software with 10+ years of experience. BSc and MSc in Computer Science. Former Nokia employee. I have served in the telecommunication industry for a decade and was responsible for products serving millions of users daily.
    vsuc_fltilesrefresh_TrophyIcon J2EE
    Chatbot
    Large Language Model
    Distributed Computing
    Multithreaded Programming
    JDBC
    Spring Boot
    Python
    Java
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At A Glance: J2EE

Developing powerful and dynamic programs and software is a vital aspect of any modern business. Implementing enterprise, networking, and web service software gives businesses an edge when navigating the highly data-driven and interactive business landscape. Java Enterprise Edition is a powerful computing platform for developing enterprise software to help you and your business manage and distribute all aspects of enterprise computations. Java Enterprise Edition provides API platforms for web services, multi-tier architectures, and object-related programming, as well as other powerful and efficient software development tools. Working with Java Enterprise Edition developers and programmers found on Upwork can provide valuable tools and opportunities for you or your organization to take advantage of, thereby creating a dynamic and flexible workspace.

J2EE developers and programmers are highly-skilled computer programmers with experience in the Java scripting language as well as the J2EE development platform. Working with a J2EE developer allows your organization and company to leverage the power of J2EE applications and software solutions that you already have implemented by making applications more efficient and manageable. Programmers can work independently or with a team within your organization to create and develop applications and frameworks your company needs to stay competitive in the highly interactive and data-driven business world. Hiring a freelance J2EE developer or programmer on Upwork gives you and your business access to a highly skilled, flexible pool of talent that is capable of producing a wide variety of solutions and applications that can become the driving force for meeting any enterprising business needs.

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