Senior Java/AI Developer, JR604

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.

Key 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

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