Make an impact by working in sectors where technology is the enabler and innovation is the key.
At Celfocus we make data actionable through NextGen Intelligence - where data AI and human creativity come together.
Youll work with multidisciplinary teams and partner with leading companies to turn data into decisions agility and longterm value.
Explore your way in.
The opportunity:
The AI Engineer is responsible for building AI-powered applications and systems that use foundation models language models enterprise data tools and business workflows to drive business outcomes. They are focused on designing reliable secure and maintainable AI solutions. The AI Engineer understands that the quality of AI systems depends on model capabilities context tools evaluation integration and operational control.
Your day-to-day:
Design and implement AI-powered applications and agentic workflows;
Engineer model interaction layer including instructions context retrieval grounding memory tool use and API/function calling patterns;
Build and maintain AI application harnesses evaluation datasets test suites and feedback loops;
Integrate foundation models APIs enterprise systems knowledge bases and workflow tools;
Implement guardrails human-in-the-loop flows access controls auditability and responsible AI practices;
Monitor AI application quality reliability latency cost usage and user feedback;
Stay up to date with the latest trends and advancements in foundation models AI engineering context engineering and agentic systems.
What youll bring:
Proficiency in Python and/or other software engineering languages;
Knowledge of LLMs foundation models prompt/context engineering RAG embeddings vector databases tool calling and agent orchestration;
Experience with APIs cloud services application integration testing CI/CD and observability;
Understanding software design principles security privacy data governance and responsible AI;
Ability to design evaluation harnesses and monitor metrics for AI systems;
Strong problem-solving and system-thinking skills;
Strong communication and collaboration skills;
Ability to translate ambiguous business needs into testable AI behavior;
Ability to work in a fast-paced agile environment.
Whats in it for you:
Hybrid way of working with flexibility and balance
Opportunity to work on international projects
Possibility to explore different roles and career paths
Continuous learning and development opportunities
A growing AIdriven environment working with the latest technologies
A set of benefits and perks to support your day-to-day
A place for everyone
At Celfocus we are committed to cultivate a diverse and inclusive workplace. As an equal-opportunity employer we welcome applicants of all backgrounds gender identities and abilities.
If you require any adjustments during the selection process please inform our Talent Acquisition Team.
Employment Type : Full Time
Experience: years
Vacancy: 1
AI Engineer • Lisbon, Porto, Portugal
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