AI Principal Engineer

hace 17 horas


Barcelona, España Blu Selection A tiempo completo

Our client, a fast-growing international digital marketplace, is building AI-powered products that connect millions of users with trusted service professionals. Operating at large scale, the platform processes high volumes of data and interactions every day, with AI playing a central role in improving matching, trust, automation, and decision-making across the ecosystem.To support this vision, the company is expanding its senior technical leadership and is looking for an AI Principal Engineer to join its Barcelona-based engineering hub. In this strategic role, you will sit one level above Senior Engineers, owning a broad end-to-end technical view across systems, architecture, and AI-driven solutions. You will help define where and how AI creates the most value, while guiding teams to turn advanced ideas into reliable, production-grade systems. Your responsibilities and impact as an AI Principal Engineer: Architecting large-scale AI systems, including orchestration frameworks and AI-powered APIs. Defining how AI services are integrated across the platform through robust API designs. Guiding and mentoring senior engineers working on advanced AI and system design challenges. Partnering closely with engineering leadership to translate AI research into scalable systems. Setting technical standards and best practices for AI engineering, system design, and performance. Providing hands-on technical direction while influencing strategy across the wider engineering organisation. Skills, qualifications, and interests you need to succeed in this role: Deep experience designing and building distributed systems at scale. Strong background in API-based architectures and service integrations. Hands-on exposure to AI technologies such as LLMs, AI APIs, vector databases, or multi-agent systems. Ability to move from prototype to production, balancing experimentation with engineering discipline. Strong architectural instincts and a clear understanding of performance and scalability trade-offs. Confidence communicating technical direction and mentoring senior engineers. Experience in large-scale digital platforms or marketplaces is a plus. Fluent English required; Spanish is a plus. What’s in it for you? Competitive salary package aligned with a principal-level role. Paid annual leave and Sick leave. Maternity, paternity, and partner leave. Medical coverage through the national social security system. Long-term opportunity in a company where AI is a core strategic pillar. High-impact role with strong autonomy and influence on technical direction. Barcelona-based position within an international engineering environment. Your future company You will join a well-established yet fast-evolving international tech company, trusted by millions of users and professionals. With AI deeply embedded in its platform strategy, the company continues to invest in cutting-edge technology to simplify complex processes, improve trust, and deliver meaningful impact at scale.


  • AI Principal Engineer

    hace 2 días


    Barcelona, España Blu Selection A tiempo completo

    Our client, a fast-growing international digital marketplace, is building AI-powered products that connect millions of users with trusted service professionals. Operating at large scale, the platform processes high volumes of data and interactions every day, with AI playing a central role in improving matching, trust, automation, and decision-making across...

  • AI Principal Engineer

    hace 2 días


    barcelona, España Checkatrade A tiempo completo

    Fancy joining our Barcelona open event? Discover Checkatrade. Discover Barcelona tech hub. Discover your next opportunity. Learn who we are, why we’re expanding our tech and product teams into Barcelona, and what we’re building here. Get a feel for life at Checkatrade through real team stories, hear about the roles we’re hiring for, and join an open...

  • AI Principal Engineer

    hace 5 días


    Barcelona, Barcelona, España Checkatrade A tiempo completo

    Join us as an AI Principal EngineerWant to do work that really matters?At Checkatrade, we're building the UK's go-to home improvement marketplace. Every day, we help millions of homeowners find the right tradesperson for the job, fast, fair, and without the faff.AI is a core part of that mission. We believe AI can genuinely improve lives and livelihoods —...

  • Sr AI Engineer

    hace 5 días


    Barcelona, España Murphy AI A tiempo completo

    1 week ago Be among the first 25 applicants About Murphy AI Murphy AI is revolutionizing debt collection through conversational artificial intelligence. We're building an advanced debt recovery platform where AI agents conduct natural, empathetic conversations across multiple channels—with a special focus on voice interactions at scale. Our AI agents...

  • AI Principal Engineer

    hace 3 días


    Barcelona, Barcelona, España Checkatrade A tiempo completo

    Fancy joining our Barcelona open event?Discover Checkatrade. Discover Barcelona tech hub. Discover your next opportunity.Learn who we are, why we're expanding our tech and product teams into Barcelona, and what we're building here. Get a feel for life at Checkatrade through real team stories, hear about the roles we're hiring for, and join an open Q&A with...

  • AI Principal Engineer

    hace 2 días


    Barcelona, España Checkatrade A tiempo completo

    Fancy joining our Barcelona open event?Discover Checkatrade. Discover Barcelona tech hub. Discover your next opportunity.Learn who we are, why we’re expanding our tech and product teams into Barcelona, and what we’re building here. Get a feel for life at Checkatrade through real team stories, hear about the roles we’re hiring for, and join an open Q&A...

  • Founding AI Engineer

    hace 2 semanas


    Barcelona, España Simon AI A tiempo completo

    About us Simon is redefining how finance teams work. We're building the Finance AI Teammate, a category-defining product that turns ERPs like NetSuite into a simple, intelligent, and proactive system of intelligence. Backed by global NetSuite partners, we're scaling fast and working with some of the most ambitious mid-sized companies in Europe and beyond. We...


  • Barcelona, España Murphy AI A tiempo completo

    A cutting-edge AI technology company in Barcelona is seeking a Senior AI Engineer to lead the development of conversational AI systems that engage in empathetic debt recovery conversations. The role involves engineering AI agents, optimizing voice interactions, and implementing quality assurance processes. Candidates should have over 4 years of experience in...


  • Barcelona, España AstraZeneca A tiempo completo

    **Associate Principal AI Engineer**: **Location - Barcelona (ESP), Gothenburg (SE), Gaithersburg (US)**: **Competitive Salary + Benefits**: **Make a more meaningful impact to patients’ lives around the globe** Here you’ll have the opportunity to make a meaningful difference to patients’ lives. With science at its heart, this is the place where...


  • Barcelona, España AstraZeneca A tiempo completo

    Principal AI Platform Engineer **Barcelona** **Competitive Salary + Benefits** **Job Description**: The Enterprise AI Platforms and Technologies Team is responsible for building and running the platforms, tooling, and infrastructure that powers AstraZeneca’s ambition to use AI in every step of the value chain, from discovering new compounds to patient...