Senior AI Engineer with Java

About the Position

We are looking for a Senior AI Engineer with strong Java expertise to help design and build scalable AI-powered enterprise applications.

Key responsibilities include:

• Design, develop, and maintain scalable, high-performance microservices using Java 17/21+ and Spring Boot.
• Architect and implement autonomous AI agents using frameworks such as Spring AI or LangChain4j.
• Build systems capable of multi-step reasoning, dynamic tool usage, and memory management.
• Integrate commercial LLM solutions such as Azure Copilot into enterprise platforms through robust RESTful APIs.
• Create, optimize, and version-control prompts to ensure deterministic, secure, and accurate AI outputs.
• Implement enterprise-grade AI reliability mechanisms including guardrails, fallback strategies, observability tracing, and rate limiting.
• Collaborate closely with application engineers, product managers, frontend teams, and data teams to deliver seamless AI-driven mobile and web experiences.
• Produce clear technical documentation for APIs, architecture decisions, and developer guides.

The company operates in a collaborative Agile and Lean environment where teams own projects end-to-end and are encouraged to take initiative, innovate, and continuously learn.

Responsibilities

• Design, develop, and maintain scalable, high-performance microservices using Java 17/21+ and Spring Boot.
• Architect and implement autonomous AI agents using frameworks such as Spring AI or LangChain4j.
• Build systems capable of multi-step reasoning, dynamic tool usage, and memory management.
• Integrate commercial LLM solutions such as Azure Copilot into enterprise platforms through robust RESTful APIs.
• Create, optimize, and version-control prompts to ensure deterministic, secure, and accurate AI outputs.
• Implement enterprise-grade AI reliability mechanisms including guardrails, fallback strategies, observability tracing, and rate limiting.
• Collaborate closely with application engineers, product managers, frontend teams, and data teams to deliver seamless AI-driven mobile and web experiences.
• Produce clear technical documentation for APIs, architecture decisions, and developer guides.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or related field.
• Minimum 8 years of professional experience as a Java Developer and AI Engineer.
• Strong experience with Java 17/21+ and Spring Boot.
• Experience developing scalable microservices architectures.
• Hands-on experience integrating Large Language Models (LLMs) into enterprise applications.
• Knowledge of Spring AI, LangChain, LangChain4j, or similar orchestration frameworks.
• Experience with prompt engineering, prompt optimization, and LLM fine-tuning.
• Understanding of AI reliability concepts including observability, tracing, guardrails, and fallback mechanisms.
• Strong REST API development experience.
• Excellent technical writing and documentation skills.
• Experience collaborating within Agile cross-functional teams.
• Portuguese residency required.
• Advanced English communication skills.

We Offer

• Opportunity to work in a collaborative Agile and Lean environment.
• Encouragement to take initiative, innovate, and continuously learn.
• Competitive compensation package.
• Opportunity to work on cutting-edge AI-powered enterprise applications.

About the Company

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