What are the responsibilities and job description for the Full Stack Java Developer position at Open Systems Technologies?
Job Summary:
We are looking for a skilled Java Full Stack Developer with a strong background in Java-based technologies and full-stack application development. The ideal candidate will have extensive experience in building scalable microservices, developing secure APIs, and integrating with modern front-end frameworks such as ReactJS and Angular. A strong foundation in data structures, algorithms, and database performance optimization is essential for this role.
Key Responsibilities:
- Design and develop scalable microservices using Spring Boot, Spring Cloud, and related Spring frameworks (Spring Security, Spring Batch, Spring Data JPA).
- Develop secure and high-performance RESTful APIs using OAuth 1.0/2.0 and JWT (JSON Web Tokens).
- Build serverless applications using AWS Lambda, API Gateway, and languages like Java, NodeJS, and Python.
- Refactor legacy code and optimize backend services using Spring Boot 3 and Spring Security.
- Redesign and refactor front-end applications using ReactJS and Angular, improving user experience and interface responsiveness.
- Write and maintain unit tests using JUnit and Mockito frameworks to ensure code quality and stability.
- Work with data across multiple platforms, including DB2, Oracle, MySQL, DynamoDB, Couchbase, and PostgreSQL.
- Optimize complex queries, implement partitioning strategies, tune performance, and create stored procedures, materialized views, and advanced indexing.
- Utilize monitoring tools such as Elasticsearch and Kibana to track application behavior and troubleshoot issues.
