ELEKS Software Engineering & Development Office is looking for a Senior Java/AI Developer 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 healthcare 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 and/or Python
- Hands-on experience working with LLMs (integration, evaluation, or architecture)
- Practical experience with prompt engineering
- Understanding of API design and backend service development

NICE TO HAVE

- Experience with RAG (Retrieval-Augmented Generation) architectures
- Experience with vector databases and embeddings
- Cloud AI services experience (Azure OpenAI, AWS Bedrock, etc.)
- MLOps or LLMOps exposure

RESPONSIBILITIES

- Design and build AI-powered features and services using LLMs




- Develop and maintain backend components in Java and/or Python
- Implement prompt engineering strategies and evaluate model outputs
- Collaborate with product and engineering teams to integrate AI capabilities into existing applications
- Stay current with emerging LLM tooling, frameworks, and best practices
- Participate in Agile/Scrum delivery practices

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

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.

📌 Senior Java/AI Developer (Argentina)
🏢 Eleks
📍 Argentina