Senior Applied AI Engineer

Remote (Europe)

Contract

We're looking for a Senior Applied AI Engineer to join our delivery team and build AI systems that solve real business problems for enterprise clients. You'll work across the full stack of applied AI — from designing LLM-powered applications and ML pipelines to deploying them in production environments.

This is a hands-on, client-facing role. You'll be embedded with client teams, working directly with stakeholders to understand their problems and shipping solutions that deliver measurable impact. We move fast, hold a high bar for engineering quality, and expect you to own your work end-to-end.

What you'll do

• Design, build, and deploy ML and LLM-powered applications for enterprise clients
• Own the full lifecycle of AI solutions — from prototyping and experimentation to production deployment and monitoring
• Work directly with client teams to translate business problems into technical solutions
• Build and optimize data pipelines, model serving infrastructure, and evaluation frameworks on cloud platforms (AWS, Azure)
• Communicate progress, trade-offs, and recommendations clearly to both technical and non-technical stakeholders
• Contribute to internal tooling, best practices, and knowledge sharing across the team

What we're looking for

• 4+ years of experience building ML applications, with a strong mathematics and statistics foundation
• Hands-on experience with NLP and LLM-based systems — prompt engineering, fine-tuning, RAG, and agent architectures
• Solid software engineering fundamentals — you write clean, testable, production-grade code
• Familiarity with cloud platforms (AWS, Azure) and building scalable, reliable systems
• High drive for results — you thrive under tight deadlines and manage urgency without cutting corners
• Clear communicator, both written and spoken — comfortable in client-facing settings and practicing radical candor within the team
• First-principles thinker who can dissect complex problems and find innovative solutions
• Genuinely curious about AI — you keep up with emerging trends and bring new ideas to the table

About Bonsai Labs

Bonsai Labs is an AI implementation company. We embed with the world's most ambitious B2B software companies and private equity portfolios to deliver AI that works in production, not in slides. We hire senior practitioners who've shipped AI systems at scale. No junior consultants, no filler. Every person on the team ships.

We work at the frontier of AI deployment. Small team, hard problems, real impact.

Our culture is anchored in four principles:

Ownership over output. We don't hand off decks. We embed with clients and own the outcome end-to-end, from strategy through production deployment.

Engineering excellence. We hire senior practitioners who've built AI systems at scale. No junior consultants, no filler. Every person on the team ships.

Radical transparency. We share context early and often, with each other and with clients. No politics, no information hoarding, no surprises.

AI-native to the core. We live and breathe AI. Every person on this team is obsessed with staying at the absolute frontier of new models, new techniques, and new tools. If it shipped this week, we've already tried it.

Bonsai Labs is a fully remote company with team members across Europe. We are bootstrapped, profitable, and growing.

Equal opportunity. We are an equal opportunity employer. We do not discriminate on the basis of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation, or any other characteristic protected under the UK Equality Act 2010 or applicable EU and national employment law. To achieve our mission, we believe we need to encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.

Ready to do the best work of your career?

Join a team that ships AI into production for the world's most ambitious companies.