J2EE Jobs

We are looking for a Senior Java Backend Developer with deep expertise in high-performance data architectures to join our team. As we scale our career pathway platform, your primary focus will be optimizing how we store, retrieve, and search complex datasets. You will be responsible for bridging our robust Java/Spring services with a modern data stack centered around MongoDB and Elasticsearch to provide our users with lightning-fast, relevant results. Key Responsibilities * Data Architecture: Design and implement scalable data models in MongoDB, ensuring efficient document structures for high-speed read/write operations. * Search Optimization: Architect and maintain Elasticsearch clusters, including index management, custom mapping, and complex query DSL optimization to power advanced s...

Job Overview Position: Backend Developer (Java / Spring Boot) – Healthcare Location: Remote Type of Work: Freelance Start: now Hourly Rate: Up to $20 Duration:8 months Workload :Full time Project Context * The project is part of the Telematics Infrastructure (TI) in the healthcare sector. * The goal is to develop and enhance a cloud-based Identity Provider (IdP) solution for strong user authentication. * The environment is highly regulated and security-critical, due to the sensitive nature of healthcare data. * Architecture is based on modern Microservices and Cloud-Native technologies with a strong focus on security and compliance. Responsibilities The Backend Developer wants: * Develop and maintain backend services using Java (Java 21) and Spring Boot. * Implement authentication ...

I'm in need of a seasoned Full Stack Software Engineer with AWS to assist with espically in Backend. (AWS knowledge is must , LAMBDA , STEP FUNCTIONS, ECS , Redshift) and Terraform .) Responsibilities : - Particiate in daily Monday to Friday 2 hour to discuss and solve backend java , AWS , Micro-service and Terraform task- Provide guidance on best practices and approaches - Take responsibvility of task management and delivery Qualifications: * Atleast 4- 5 years of experience in Java , Springboot , AWS , Microservices * Strong Experience with end-end testings for both frontend and backend. Compentation : $400-$450 / month for 2 hours of work per day If you are passiobate about coding and enjoying mentoring , I'd love to hear from you >

Full-Stack Developer (Java / Spring Boot + Vue 3) – E-Commerce Platform – Ongoing Contract We are very interested in developers based in Ukraine, Romania, Czechia, Slovakia, Estonia, Latvia, Lithuania, Bulgaria, Slovenia, Croatia, Hungary, Poland, Vietnam, and Taiwan. If you are located in any of these regions, your bid will have priority review over bidders in much larger nations that tend to flood freelance markets with bids. About Us We operate an e-commerce platform serving international customers. Our system is built on a decoupled front-end/back-end architecture and is currently live in production. We're looking for a reliable full-stack developer to join us on an ongoing freelance basis to help with feature development, maintenance, bug fixes, and incremental imp...