ELEKS 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 WHAT YOU WILL GET WITH ELEKS
Close cooperation with a customer Challenging tasks Competence development Ability to influence project technologies Team of professionals Dynamic environment with low level of bureaucracy ABOUT
ELEKS is a custom software development company. We deliver value to our clients, thanks to our expertise and experience gained from working as a software innovation partner since 1991.
Our 2000+ professionals located in the Delivery Centers across Eastern Europe and sales offices in Europe and North America, provide our clients with a full range of software engineering services. These include product development, QA, R&D, design, technology consulting and dedicated teams.
Benefits undefined
Eleks