AI Engineer
Willis Towers Watson2 days ago
Lisbon, PortugalMid Level
Responsibilities
- Translate business and technical requirements into practical AI solutions with measurable value.
- Design, build, and deliver LLM-based applications and agents using RAG, prompt engineering, tool calling, MCP, and agentic patterns.
- Build reusable agent skills and maintain shared assets across AI solutions.
- Use code-first development, low-code automation, and tools such as Power Platform and Copilot Studio as appropriate.
- Prototype and validate AI ideas, using evaluation evidence to guide progression into production.
- Build and maintain Microsoft Fabric lakehouses, pipelines, semantic models, Fabric IQ assets, and data agents for AI solutions.
- Define evaluation approaches for AI quality, reliability, safety, and business effectiveness.
- Prepare solutions for production through monitoring, observability, resilience, scalability, and cost control.
- Review and test both human-written and AI-generated code and follow architecture, engineering, security, Responsible AI, and governance standards.
- Diagnose complex implementation and integration issues and drive them through resolution.
- Contribute reusable components and patterns, conduct code reviews, and support less experienced engineers through knowledge sharing.
Requirements
- Degree in Computer Science, Computer Engineering, Mathematics, or a related technical discipline, or equivalent practical experience.
- At least 3 years of experience in software engineering, AI/ML engineering, low-code automation, or AI solution development.
- Strong Python skills; JavaScript/TypeScript, C#/.NET, or other relevant languages are advantageous.
- Practical experience building generative AI and LLM applications, including RAG, agents, tool or function calling, and structured outputs.
- Experience taking software or AI solutions from prototype through testing and into production.
- Experience with APIs, databases, integrations, and modern application development.
- Experience with cloud platforms, with Microsoft Azure strongly preferred.
- For Data & Fabric-focused positions, hands-on experience with Microsoft Fabric, Synapse, or Databricks and data modeling.
- Experience with Agile, DevOps, source control, and CI/CD practices.
- Understanding of Responsible AI, data privacy, and AI governance requirements.
- Strong problem-solving skills, sound technical judgment, and confidence explaining technical choices to non-technical stakeholders.
- Fluency in written and spoken English is mandatory.
- Experience with Microsoft Foundry, Azure OpenAI, Microsoft Fabric, Fabric IQ, Agent Skills, Power Platform, or Copilot Studio is advantageous.
- Knowledge of pensions or financial services is advantageous.
Benefits
- Flexible working hours and hybrid working options.
- Competitive performance-related remuneration.
- Global exposure through an international consultancy and renowned clients.
- Career development through on-the-job learning and specialist training.
- Collaborative, collegial, and appreciative working environment.
- Direct customer contact and opportunities to take responsibility and make an impact.
- Corporate events and success celebrations.
- Role may be based in Lisbon or Manila.
Tech Stack
Categories
About Willis Towers Watson
WTW is a global advisory, broking, and software firm serving employers, insurers, and institutional clients across people, risk, and capital. It provides insurance brokerage and risk advisory, employee benefits and pensions consulting, and HR/benefits administration software and analytics. Headquartered in London and listed on NASDAQ (WTW), the company was formed in 2016 via the Willis Group–Towers Watson merger and operates in roughly 140 markets worldwide.