Senior Full-Stack Developer specializing in Java and React for a leading US health insurance company. Hybrid work model based in Buenos Aires with occasional office presence.
Responsibilities
Develop backend functionality for the enterprise time‑tracking platform
Implement new features, enhancements, and integrations
Optimize data processing, API performance, and backend logic
Participate in refinement, planning, and technical discussions
Collaborate with PM, Designers, QAs, and senior developers
Investigate and troubleshoot production issues when needed
Ensure code quality following engineering best practices
Contribute to architectural decisions and propose improvements
Requirements
5+ years of professional experience in Java backend development
Strong proficiency in Java with hands-on experience in Spring Boot 3.x
Solid experience designing and building REST APIs consumed by multiple downstream systems
Solid understanding of REST API design, authentication, authorization, and web security principles
Hands-on experience with Databricks for data processing and data engineering workflows
Working frontend development skills — React, TypeScript, CSS; ability to contribute to UI features alongside backend work
Experience with ARO (Azure Red Hat OpenShift) or equivalent container orchestration platforms
Proficiency in CI/CD tooling — Jenkins
Proficiency in Git including branching workflows, code reviews, and pull requests
Hands-on experience with GitHub Copilot or other AI-based coding assistants
Hands-on experience with developer tooling: IntelliJ IDEA, VS Code, Git, Chrome Developer Tools
Solid communication and collaboration skills with ability to engage both technical and non-technical stakeholders
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