🖥️Lead AI Engineer
Murphy
Software Engineering, Data Science
EUR 70k-90k / year + Equity
Posted on Jun 23, 2025
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🖥️
Lead AI Engineer
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👋 About us
Murphy AI is a next-generation debt collection platform powered by artificial intelligence, designed to optimize recovery rates while maintaining respectful and personalized communication. Our advanced automation streamlines the process of collecting overdue invoices for businesses, providing a seamless and effective solution.
Our platform integrates effortlessly with ERP systems or supports CSV uploads to ensure smooth access to data on unpaid invoices. Using AI-driven agents, we engage with debtors across multiple channels, including SMS, email, phone calls, and more. For cases where payment arrangements are unsuccessful, we facilitate escalation to legal proceedings through trusted partnerships with law firms.
As a fast-growing startup that has already made an impact within just a few months in the market, we are building a talented team to scale our operations and drive our vision forward. Join us in redefining debt recovery with innovation and empathy.
Type: Full-time, Hybrid in Barcelona
As a Lead AI Engineer, your mission is to own and drive the architecture, implementation, and evolution of our AI stack — turning cutting-edge AI research into scalable, production-ready features that deliver real business value to our customers.
You will lead technical direction on all AI-related systems, mentor other engineers, and work closely with product to ship innovative AI-first experiences. You’ll have ownership of the entire AI pipeline — from LLM agents and orchestration to RAG, evals, and monitoring — and play a key role in shaping our AI engineering culture as we scale.
📝 Responsibilities
Lead the design and development of our AI stack: agents, prompt systems, RAG pipelines
Own the architecture and technical direction for all AI-related features and systems
Mentor and guide other engineers working on AI, and help grow the AI team
Work closely with product to design user-facing AI features
Own AI infrastructure and tooling (LLM APIs, embeddings, vector stores, evals, monitoring)
Ship fast and iterate
📚 Requirements
Experience designing and shipping production-grade AI/LLM systems
Deep understanding of modern LLMs, prompting, RAG, evals
Experience working with machine learning
Strong programming skills in Python
Experience owning architecture and technical decisions
Ability to lead and mentor engineers.
Pragmatic mindset: you know when to build simple vs. cutting-edge
Experience in a fast-paced product company (startup or scaleup) is a big plus
🤖 Our stack
Frontend: Next.js, Tailwind CSS, TypeScript.
Backend: Node.js, TypeScript, Python.
AI: OpenAI, Python, Langfuse, Agentic infrastructure
Infrastructure: PostgreSQL, Google Cloud Platform (GCP).
Work Environment: Monorepo (Turborepo), GitHub.
🤩 Experience
8+ years working in AI, building tools with machine learning and generative AI (LLMs, RAG, agents)
🤝 What we offer
💰 Salary: €70.000–€90.000 gross/year
📈 Stock options: Because we all build Murphy together – you'll own a piece of what we’re creating.
🧩 Impact: Be part of our startup journey from day one, playing a key role in our growth and building something meaningful from the ground up.
📚 Learning: Continuous development through trainings, knowledge-sharing, and exposure to other top-tier startups in our ecosystem.
🍱 Healthy meals: No more boring tupperware – enjoy daily meals with Nora Foods. We cover 50% of each order!
🚴♂️ Ride into work: Forget traffic jams – hop on your Panot e-bike and cruise to the office! We cover 50% of your subscription.