ELEKS
Software Engineering & Development Office is looking for a Senior Full-Stack Software Developer (Java+React) based in Buenos Aires for a hybrid position: 2–3 days per week onsite at our local office, with the remaining days remote.
Working hours 10:00 AM – 6:00/7:00 PM ART
ABOUT PROJECT
The client is among the top-5 health insurance companies in the US. They are dedicated to expanding access to high-quality, cost-effective health care and equipping their members with information and tools so they can make the best health care decisions for themselves and their families.
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
NICE TO HAVE
Experience in the healthcare domain or regulated industry environments
Deeper frontend experience with Redux, Webpack, and Microfrontend (MFE) architecture
Familiarity with MuleSoft or API integration platforms
Experience with containerization (Docker, Kubernetes) and cloud platforms (AWS, Azure, GCP)
Understanding of DevSecOps practices and GitOps workflows
Knowledge of code quality scanning tools such as SonarQube
Working knowledge of Dynatrace for monitoring and observability
Basic experience with NGINX and PCF/OpenShift
UCD (UrbanCode Deploy), Insomnia
Experience working in agile delivery teams — comfortable with estimation, sprint planning, and Jira
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
