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J2EE

Oracle Cloud Account Setup

Tue, 2026-02-24 13:08
I’m ready to move my upcoming web-application projects onto Oracle Cloud Infrastructure and need a specialist to get the account created. Here’s what I’m looking for: • Create a brand-new OCI account, link and verify billing... (Budget: ₹100 - ₹400 INR, Jobs: Cloud Computing, Cloud Networking, Cloud Security, Database Administration, DevOps, Documentation, J2EE, Oracle)

Spring Boot Full-Stack Developer

Tue, 2026-02-24 12:11
I’m building a full-stack Java application and need support from someone comfortable working end-to-end with Spring Boot at an intermediate level. The core tasks will revolve around crafting clean, maintainable... (Budget: ₹12500 - ₹37500 INR, Jobs: Backend Development, Docker, Frontend Development, Full Stack Development, Hibernate, J2EE, Java, MySQL, Software Architecture, Spring Boot)

Java User Data API

Sat, 2026-02-21 10:20
The project involves building a robust Java backend that exposes secure, well-documented APIs dedicated to handling user data. The service will receive, create, update, and delete user records, while enforcing authentication and validation at every endpoint... (Budget: $250 - $750 USD, Jobs: API Development, Docker, J2EE, Java, JSP, MySQL, PostgreSQL, Spring Boot)

Spring Boot REST API Build

Sat, 2026-02-21 01:27
I need a clean, production-ready REST API built with Java Spring Boot that connects to both MySQL and MongoDB. The service must cover two core capabilities: secure user authentication and full CRUD operations... (Budget: min ₹2500 INR, Jobs: J2EE, Java, JSON, JSP, MongoDB, MySQL, REST API, Spring Boot, Spring Data, Spring Security)

Java Full-Stack Development Support

Fri, 2026-02-20 05:47
I am building a full-stack solution that pairs an Angular front end with a Spring Boot back end. The project is already scoped and architected; what I need now is a developer who can move comfortably between... (Budget: ₹1500 - ₹12500 INR, Jobs: Angular, AngularJS, Full Stack Development, HTML5, J2EE, Java, REST API, Spring Boot)

Java User Data API

Fri, 2026-02-20 02:53
The project involves building a robust Java backend that exposes secure, well-documented APIs dedicated to handling user data. The service will receive, create, update, and delete user records, while enforcing authentication and validation at every endpoint... (Budget: $250 - $750 USD, Jobs: API Development, Docker, J2EE, Java, JSP, MySQL, PostgreSQL, Spring Boot)

Software Cloud Developer

Tue, 2026-02-17 13:01
I am a Software Developer with over 7 years of hands-on experience in Java and AWS services, and I am excited to begin my freelancing journey on Upwork. Throughout my professional career, I have designed,... (Budget: ₹100 - ₹400 INR, Jobs: AWS Lambda, Cloud Computing, J2EE, Java, JavaScript, REST API, RESTful, Software Architecture, Software Development, Terraform)

Full-Stack Java Developer PST time zone

Mon, 2026-02-16 11:14
I need a versatile full-stack Java developer who can dedicate a full 8-hour shift aligned with Pacific Standard Time. The work revolves around a new enterprise platform we are rolling out internally, and... (Budget: ₹37500 - ₹75000 INR, Jobs: Backend Development, Data Analytics, Frontend Development, Full Stack Development, J2EE, Java, Java Spring, JavaScript, REST API, RESTful)

Spring Java Web App Development

Sun, 2026-02-15 19:25
I'm looking for an experienced Java developer to build a web application using the Spring framework. The app needs to support user authentication, data management, and reporting and analytics functionalities... (Budget: ₹750 - ₹1250 INR, Jobs: Data Analytics, Data Management, J2EE, Java, Java Spring, JSP, Software Architecture, Web Development)

Fix Java Excel Handling

Fri, 2026-02-13 10:29
My Java-based desktop application currently throws errors whenever a user tries to import an Excel file, and the files it exports need a small formatting tweak before they are usable. The rest of the program... (Budget: €30 - €250 EUR, Jobs: Agile Development, Desktop Application, Excel, J2EE, Java, JavaScript, Software Architecture, Software Development)

Secure Spring Boot Mobile Backend (Full Stack)

Thu, 2026-02-12 07:49
I’m building a new mobile application and I need a robust Java Spring Boot backend to power it. The core services you’ll create must cover: • User authentication and management with full multi-factor authentication (MFA) and support for future multi-party authentication flows... (Budget: ₹400 - ₹750 INR, Jobs: Hibernate, J2EE, Java, MySQL, PostgreSQL, REST API, RESTful API, Software Architecture, Spring Boot, Spring Security)

deploy and configure the Signal Private Messenger server

Thu, 2026-02-12 02:28
deploying the official open-source backend components and integrating them with various third-party services for full functionality. • mainly our requirements our own infrastructure Self-Hosted with Custom Instance public rebranded messaging app... (Budget: ₹1500 - ₹12500 INR, Jobs: Database Administration, J2EE, Java, Linux, Node.js, PostgreSQL, Redis, System Admin)

Backend para Sistema Empresarial

Tue, 2026-02-10 15:32
Busco desarrollar el backend de un sistema empresarial centrado en el seguimiento de procesos, específicamente el seguimiento de tareas diarias. Qué necesito: • Arquitectura robusta con API REST bien documentada... (Budget: $30 - $250 USD, Jobs: Amazon Web Services, API Development, Backend Development, J2EE, Java, Java Spring, Node.js, RESTful)

Tweetbig - Twitter Rocket Fuel

The Greatest Web-based Twitter Software. Tweetbig Is Like Rocket Fuel For Your Twitter Account. You Can Manage Multiple Accounts, Schedule Tweets, Post From Rss Feeds, And Find The Fastest Path To More Followers With Our Keyword And User Gathering Tools more...