Java Backend Developer with AWS

About Wissen TechnologyWissen Technology, established in 2015 and part of the Wissen Group (founded in 2000), is a specialized technology consulting company. We pride ourselves on delivering high-quality solutions for global organizations across Banking & Finance, Telecom, and Healthcare domains.For more details:Website: [hidden] Thought leadership : [hidden] Wissen TechnologyRole: Java Backend Developer with AWSKey Responsibilities● Design & Development: Build robust, scalable, and maintainable backend services using Java 17+ and the Spring Boot ecosystem.● API Design: Develop and document RESTful for consumption by web and mobile frontends.● Database Management: Optimize complex queries and design schemas for relational (PostgreSQL, MySQL) and/or NoSQL (MongoDB, DynamoDB) databases.● Microservices Architecture: Contribute to the migration or maintenance of microservices, ensuring high availability and low latency.● Code Quality: Perform thorough code reviews and write comprehensive unit, integration, and functional tests (JUnit, Mockito).● Cloud & DevOps: Deploy and manage applications in AWS using Docker and Kubernetes.● Collaboration: Work closely with Frontend Developers, Product Managers to translate business requirements into technical specifications. Required Technical Skills● Java Mastery: Deep understanding of Core Java, Multithreading, and Stream API.● Frameworks: Extensive experience with Spring Boot, Spring Security, and Spring Data JPA/Hibernate.● Cloud Experience: Proficiency with cloud-native services (e.g., AWS Lambda, S3, RDS, or SQS).● Messaging: Experience with message brokers like Apache Kafka for asynchronous processing.● CI/CD: Hands-on experience with Jenkins, GitLab CI, or GitHub Actions.● Version Control: Expert-level knowledge of Git and branching strategies.Qualifications & Soft Skills● Experience: 5+ years of professional experience in backend development.● Problem Solving: Ability to debug complex production issues and performance bottlenecks.● Communication: Excellent verbal and written communication skills—vital for a remote/hybrid contractor setup.● Adaptability: Proven ability to quickly learn new codebases and business domains.