Founding AI Engineer

hace 2 semanas


madrid, España Traza A tiempo completo

Traza is here to transform billions of GDP that still depends on manual, inefficient operations. We build 24/7 AI Operators for the critical industries that never sleep, rewiring how the real economy runs. Backed by top-tier investors from Silicon Valley, we’re defining a new category and reshaping a major slice of global productivity. About the Role You’ll design and build AI systems that operate in real-world companies. From the first conversation with a customer to a production-ready agent, you’ll own the full process. As a Founding AI Engineer, you’ll make core decisions about how agents are structured, when to introduce sub-agents, how context is scoped, and how systems are evaluated and improved over time. You’ll work across models, backend systems, voice pipelines, and integrations to ensure our AI operators behave predictably and perform at production-grade quality. What We Are Looking For We’re looking for extraordinary talent who does their best work when the problems are hard, the context is scarce, and the pace is unforgiving. There’s no playbook here. You’ll help write it. We want individuals driven by extreme ownership and rapid growth, ready to push past existing boundaries and reinvent how critical industries operate. Requirements Technical Experience Strong Python Engineering: Deep expertise in Python for production systems (async/concurrency, typing, Pydantic). Familiarity with Go or Rust is a plus. End-to-End AI Implementation: Take a client use case from understanding the problem to shipping a working AI system in production. Agent & Context Design: Decide how to structure agents for complex workflows. Know when a single agent is not enough and when to introduce sub-agents to isolate context, reduce leakage, and improve results. Prompt Engineering: Design clear, robust prompts that drive reliable behavior. Understand model limitations, failure modes, and how prompt structure impacts outputs. AI Evaluation & Quality: Build evaluation setups that reflect real production usage. Define tests and metrics to validate correctness, reliability, and edge cases. Voice AI Systems: Build and optimize voice workflows (STT → LLM → TTS). Reduce latency, handle errors, and improve accuracy for real-time interactions. Integrations & APIs: Design and maintain integrations with third‑party systems. Ensure clean interfaces, reliability, and observability. Production Ownership: Operate what you ship: debug failures, improve performance, and iterate quickly based on real user feedback. What you’ll do Customer‑Facing Engineering: Work closely with customers from onboarding to ongoing usage, helping them integrate and optimize our AI solutions. Resolutive: Make the best decisions in situations where the context is missing and you need to provide a fast solution. Thrive in reduced information environments. Extreme ownership: See problems through from detection to resolution to prevention. Startup velocity: Comfortable with ambiguity, rapid iteration, and wearing multiple hats. What do we Offer Join as the first hire at a high‑ambition startup backed by top‑tier investors from Silicon Valley. Ownership, autonomy, and a direct hand in shaping Traza’s future. Strong compensation package: competitive salary plus meaningful equity. A high‑growth environment surrounded by top engineering talent. Seniority level Entry level Employment type Full‑time Job function Engineering and Information Technology Industries Software Development #J-18808-Ljbffr



  • madrid, España Traza A tiempo completo

    A high-ambition AI startup in Madrid is looking for a Founding AI Engineer to lead AI system design and implementation. This role demands strong Python expertise and the ability to manage AI projects from inception to production. You will work closely with clients, ensuring successful deployment and optimization of AI solutions. The position offers a...


  • Madrid, España Taizen A tiempo completo

    A cutting-edge tech company in Madrid seeks a Founding Senior Software Engineer to develop the next generation AI analytics platform.Asegúrese de presentar su candidatura con toda la información solicitada, tal como se expone en la descripción del puesto a continuación.You will build scalable backend infrastructure and collaborate with Full-Stack...

  • Founding Partnerships BDR

    hace 2 semanas


    Madrid, España Featherless AI A tiempo completo

    A cutting-edge AI startup in Spain is seeking a Founding Business Development Representative for Partnerships. This role blends relationship management with innovative outreach strategies in a fast-paced AI environment. The ideal candidate will have 1–3 years in business development, excellent communication skills, and a passion for technology. You will...


  • madrid, España Taizen A tiempo completo

    A forward-thinking AI analytics startup in Madrid is seeking a Founding Senior Software Engineer. The ideal candidate will build scalable backend infrastructure and optimize data pipelines while collaborating with AI and Full-Stack Engineers. Key qualifications include a degree in Computer Science and experience with data warehouse technologies, TypeScript,...


  • Madrid, España Taizen A tiempo completo

    A forward-thinking tech company in Madrid is seeking a Founding Senior Software Engineer to build a robust backend for their AI analytics platform. The ideal candidate will have strong expertise in data pipelines and backend systems, experience with TypeScript, NodeJS, and Python, and the ability to manage cloud infrastructure. This role involves close...


  • madrid, España Taizen A tiempo completo

    A leading tech company in Madrid seeks a Founding Senior Software Engineer to develop an AI analytics platform aimed at enhancing product, marketing, and sales teams' understanding of customer feedback. The position requires substantial experience in product or data platforms and is not suitable for those with mainly freelance or consulting backgrounds. The...

  • Founding AI Engineer

    hace 2 semanas


    Madrid, España Traza A tiempo completo

    Traza is here to transform billions of GDP that still depends on manual, inefficient operations.We build 24/7 AI Operators for the critical industries that never sleep, rewiring how the real economy runs. Backed by top-tier investors from Silicon Valley, we’re defining a new category and reshaping a major slice of global productivity.About the RoleYou’ll...

  • Founding AI Engineer

    hace 1 semana


    Madrid, España Traza A tiempo completo

    Traza is here to transform billions of GDP that still depends on manual, inefficient operations. We build 24/7 AI Operators for the critical industries that never sleep, rewiring how the real economy runs. Backed by top-tier investors from Silicon Valley, we're defining a new category and reshaping a major slice of global productivity. About the Role You'll...

  • Founding Engineer

    hace 2 semanas


    Madrid, España Traza A tiempo completo

    Join to apply for the Founding Engineer role at Traza .A massive share of the world’s GDP still depends on manual, inefficient operations. Traza is here to transform it.We build 24/7 AI Operators for the critical industries that never sleep, rewiring how the real economy runs. Backed by top‑tier investors from Silicon Valley, we’re defining a new...

  • Founding Engineer

    hace 4 días


    Madrid, España Traza A tiempo completo

    Join to apply for the Founding Engineer role at Traza . A massive share of the world’s GDP still depends on manual, inefficient operations. Traza is here to transform it. We build 24/7 AI Operators for the critical industries that never sleep, rewiring how the real economy runs. Backed by top‑tier investors from Silicon Valley, we’re defining a new...