Full Stack AI Engineer | Madrid

We are still looking for the very Top Talent…and we would be delighted if you were to join our team!

More in details, UST is a multinational company based in North America, certified as a Top Employer company with over 35.000 employees all over the world and presence in more than 35 countries. We are leaders on digital technology services, and we provide large-scale technologic solutions to big companies.

What are we looking for?

We are looking for a Full Stack AI Engineer with strong experience in Python backend development and React frontend development, capable of building end-to-end, AI-driven web applications. The ideal candidate is hands-on, works comfortably across the full stack, and collaborates closely with product and UX teams to deliver scalable and maintainable solutions.

Location: 3 days a week at the client's Office in Madrid (Metro Sol). 2 days remote

Language: English is a must. Spanish desirable.

Main Job Requirements

• Proven experience as a Full Stack Developer, preferably in AI-related projects
• Strong backend development skills in Python using frameworks such as FastAPI, Flask, or Django
• Solid experience building modern, responsive frontends with React (component-based architecture, state management, responsive UI)
• Good knowledge of API design (RESTful and/or GraphQL) and integration between frontend, backend, and databases
• Solid understanding of relational databases and data workflows
• Experience integrating and optimizing API endpoints and data pipelines
• Familiarity with CI/CD pipelines, Git, automated testing, and code review practices
• Strong understanding of software design principles: scalability, modularity, maintainability, and security
• Excellent problem-solving and debugging skills across the full stack
• Bachelor’s or Master’s degree in Computer Science, Software Engineering, IT, or a related field
• Strong soft skills: autonomy, attention to detail, ability to prioritize tasks, and effective collaboration with cross-functional teams
• Continuous learning mindset, especially in AI and machine learning technologies

• 23 days of Annual Leave plus the 24th and 31st of December as discretionary days!
• Numerous benefits (Heath Care Plan, Internet Connectivity, Life and Accident Insurances).
• `Retribución Flexible´ Program: (Meals, Kinder Garden, Transport, online English lessons, Heath Care Plan…)
• Free access to several training platforms
• Professional stability and career plans
• UST also, compensates referrals from which you could benefit when you refer professionals.
• The option to pick between 12 or 14 payments along the year.
• Real Work Life Balance measures (flexibility, WFH or remote work policy, compacted hours during summertime…)
• UST Club Platform discounts and gym Access discounts

In UST we are committed to equal opportunities in our selection processes and do not discriminate based on race, gender, disability, age, religion, sexual orientation or nationality. We have a special commitment to Disability & Inclusion, so we are interested in hiring people with disability certificate.

Skills

python,jira,git testing,cicd pipeline,