Principal AI Engineer (, Python) - OP01908 at Dev

Job Description:

Latest job information from Dev for the position of Principal AI Engineer (, Python) - OP01908. If the Principal AI Engineer (, Python) - OP01908 vacancy in Porto matches your qualifications, please submit your latest application or CV directly through the updated Jobkos job portal.

Please note that applying for a job may not always be easy, as new candidates must meet certain qualifications and requirements set by the company. We hope the career opportunity at Dev for the position of Principal AI Engineer (, Python) - OP01908 below matches your qualifications.

At Dev.Pro, we work on projects that impact millions of people around the world — but we know it's the people behind the tech who make it all happen. We truly value what makes each person unique and are building a workplace that's inclusive, friendly, and supportive.

We invite a talented AI Engineer with a genuine passion for AI and curiosity for exploring new technologies to join Dev.Pro. In this role, you'll work on a variety of internal and client-facing initiatives, building AI solutions for internal teams and showcasing Dev.Pro's expertise through client demos and prototypes. You'll also contribute to the company's AI growth by sharing knowledge, documenting best practices, and guiding teams in adopting AI.

What's in it for you:

• Tackle complex AI challenges, working hands-on with Python, , LangChain, and vector databases
• Build end-to-end AI solutions, from early experiments and prototypes to production-ready systems
• Explore and innovate with the latest AI tools in a collaborative, cross-disciplinary environment

Is that you?

• 8+ years in software engineering with strong Python and production backend experience
• Deep understanding of ML fundamentals, including implementing basic models and gradient descent from scratch
• Hands-on GenAI experience with LLM APIs, prompt engineering, LangChain, and AI feature development
• Passion for AI coding demonstrated via side projects, experimentation, and autonomous coding practices
• Strong SQL and practical experience with vector databases and embeddings
• Solid knowledge of testing, QA, and maintainability
• Excellent technical communication, documentation, and cross-disciplinary collaboration
• Proficiency with Git, CI/CD, and code reviews
• Strong analytical thinking and problem-solving skills
• Upper-Intermediate English level
• Expertise in Agile workflows, balancing R&D and delivery priorities

Desirable:

• Experience in ML tasks (feature engineering, imbalanced datasets, data prep)
• Hands-on with visual AI workflows, model fine-tuning, agent orchestration, and evaluation
• Exposure to data engineering (pipelines, transformations, warehouse vs. lake tradeoffs)
• Architecture documentation using C4, ADR, or similar decision-capture patterns
• Experience across and .NET
• Cloud & deployment knowledge (Azure)
• R&D and client-facing experience (PoCs, demos, presales discussions)

Key responsibilities and your contribution

In this role, you'll explore and build exciting AI solutions, demonstrate Dev.Pro's AI expertise to clients, and drive AI adoption and best practices across the company.

• Design and develop AI solutions end-to-end, from experiments and prototypes to production-ready systems
• Conduct R&D and build PoCs, exploring new AI tools and methods, testing ideas, and turning validated concepts into working solutions
• Collaborate with cross-functional teams to design and integrate AI solutions effectively
• Support presales activities and demos, showcasing Dev.Pro's AI expertise to existing and potential clients
• Document solutions, experiments, and best practices to grow AI expertise across the company
• Advise teams and clients on AI adoption, tools, and implementation strategies
• Lead or participate in internal workshops and knowledge-sharing sessions

What's working at Dev.Pro like?

30 paid days off per year — take them whenever you want for vacation, holidays, or personal time 5 paid sick days, up to 60 days of medical leave, and 6 paid days off per year for major family events like weddings, funerals, or the birth of a child Partially covered health insurance after the probation, plus a wellness bonus for gym memberships, sports nutrition, and similar needs after 6 months Grow your skills with English lessons, online training, conferences, and the option to explore new career paths

Our next steps:

Submit a CV in English — Intro call with a Recruiter — Internal interview — Client interview — Offer

Interested? Find out more:

How we work

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Job Info:

• Company: Dev
• Position: Principal AI Engineer (, Python) - OP01908
• Work Location: Porto
• Country: PT

How to Submit an Application:

After reading and understanding the criteria and minimum qualification requirements explained in the job information Principal AI Engineer (, Python) - OP01908 at the office Porto above, immediately complete the job application files such as a job application letter, CV, photocopy of diploma, transcript, and other supplements as explained above. Submit via the Next Page link below.