Senior Java Full Stack Developer (ReactJS) Responsibilities Develop, enhance, and maintain web applications using ReactJS, Java, and Spring Boot Build reliable and robust microservices architecture adhering to RESTful API and HTTP standards Collaborate with cross-functional teams to simplify user journeys and optimize system performance Design and implement serverless solutions leveraging AWS Lambda, API Gateway, DynamoDB, and other AWS services Ensure real-time data availability and improve application usability for field scientists Write clean, modular code aligned with Java standards and best practices Follow Agile/Scrum methodologies to deliver high-quality software solutions in iterative cycles Implement CI/CD pipelines and automation-first principles with GitLab, Docker, and Terraform Create and maintain API documentation using OpenAPI/Swagger standards Conduct TDD-driven development, covering unit, integration, and contract testing Focus on data quality within application designs, ensuring accurate inputs and reference harmonization Future-proof the technical design to support evolving data analytics needs Requirements 3+ years of experience in Java development, including Java 17+ Background in Spring Boot and/or Quarkus development Proficiency in ReactJS and React Query for dynamic and responsive UIs Expertise in RESTful APIs and microservice architecture based on HTTP standards Knowledge of AWS serverless architecture including DynamoDB, Lambda, API Gateway, SQS/SNS, and containers Understanding of SQL and non-relational databases Showcase of clean code practices and modular design principles Familiarity with CI/CD pipelines, GitLab, and Agile/Scrum methodologies Competency in TDD including unit, integration, and contract testing Capability to create comprehensive API documentation using OpenAPI/Swagger Flexibility to work on Terraform, Docker, and other DevOps tools Ability to communicate effectively in both written and spoken English (B2 level) Nice to have Knowledge of CI/CD practices with advanced customization Familiarity with OpenLayers for geospatial data visualization