GenAI Engineer

Mutual Respect, Empathy, Innovation, and Professional Pride. Do you see yourself within these values?

Founded in 2006 with the mission "To Challenge Complexity", Closer Consulting is a Data Science company specializing in Business Intelligence, Advanced Analytics, and Artificial Intelligence. Developing projects in the most diverse industries – Banking, Telecommunications, Healthcare, Retail, Energy, Insurance, and Aviation, among others –, we have created an environment where the brightest enquiring minds feel at home, providing our people with the means, opportunities and support they need to thrive and innovate.

We are seeking a skilled AI Agents / GenAI Engineer eager to take on new challenges in a hybrid work model in Lisbon or Porto.

Are you the one?

- 3–6 years of Python engineering experience, with 1–2 years focused on LLM/GenAI applications.

- Hands-on experience with agent frameworks (LangGraph, CrewAI, AutoGen, or similar) and ReAct cycles.

- Deep expertise in prompt engineering, RAG patterns, and LLM evaluation techniques.

- Experience with REST/gRPC APIs (Go backend integration), JSON Schema, and asynchronous Python.

- Practical understanding of Docker and Kubernetes (log management and ConfigMaps).

- Strong testing culture (pytest, LLM mocking).

- Fluent English with strong communication, teamwork, autonomy, and high attention to detail.

What you will do:

- Develop and maintain Python-based agents (LangGraph, LangChain, internal SDK) for European banking custody back-office operations.

- Design multilevel flows, tool calling, state management, guardrails, and human-in-the-loop patterns.

- Manage prompts and system configurations via Kubernetes ConfigMaps.

- Build evaluation pipelines using golden datasets, quality metrics, shadow testing, and regression testing.

- Adapt general-purpose central team agents to local business requirements.

- Ensure observability across agent metrics, latency, token consumption, and structured logs.

- Translate complex financial rules (settlements, corporate actions) directly into agent behaviors.

We believe we are the ones to, by:

- Providing a multidisciplinary Team.

- Giving a home office kit with everything you need to perform remotely.

- Ensuring a career plan alongside professional growth.

- Providing you with a custom training plan.

Oh… and by the way, we also have:

- Several challenging complex projects.

- Stimulating teams and leaders.

- World-class Clients and Partners.

Closer is a company that values diversity and inclusion. We are committed to fostering an environment where everyone is treated with dignity and respect, regardless of race, gender, beliefs, sexual orientation, physical or mental disability, or other personal characteristics.

At Closer, we embrace the unique perspectives and experiences that everyone brings, and we believe that it is a fundamental driver for the success we've achieved.

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