Founding AI Engineer

Department: Engineering

Location: London

Employment Type: FullTime

We're a small team of engineers and scientists trying to create a golden age in aviation by reshaping how aircraft are built and maintained.

Fleetcraft’s mission is to enhance humanity’s access to the sky by accelerating innovation in aerospace and reducing the risk of bringing new aircraft to market.

We're growing fast and looking for an exceptional full-stack founding engineer to join our team.

Why Join Us?

We’re building at the intersection of aerospace and AI - modernising one of the world’s most complex and critical industries.

• Solve real-world problems: Your code won’t just ship; it will define how aircraft are inspected, maintained, and trusted worldwide.

• Join from the start: We’re growing fast and already working with some of the largest aviation companies in the world. You’ll be here from day one, helping shape the future.

• High trust, high ownership: Make decisions that move the whole company forward. We value autonomy, speed, and impact.

• Stack: Build with modern tools — Python, FastAPI, TypeScript, LLMs, MLOps

What We’re Looking For

• 2+ years of software development experience

• Proven track record of building and shipping full-stack products in fast-paced, product-driven teams

• Hands-on experience building production AI systems with Python, PyTorch, and LLMs (OpenAI, Anthropic, etc.), integrated into real user workflows

• Familiarity with MLOps tools and CI/CD for both traditional and ML-driven systems

• Strong backend and API development skills - comfortable owning systems end-to-end, from data pipelines to user-facing interfaces

• Passion for building clean, usable products that solve real problems, fast

• Comfortable wearing multiple hats, challenging assumptions, and shaping product direction in ambiguous environments

Bonus Points

• Prior startup or 0→1 product experience

• Contributions to open-source AI/ML projects

• Experience with aviation, aerospace, or other safety-critical domains

You Should Apply If...

• You love building real products that users depend on - not just prototypes

• You’re energised by fast feedback loops and high-leverage work

• You want to work close to users and shape what gets built

• You thrive in ambiguous, high-trust, high-ownership environments

You Should Not Apply If...

• You prefer clearly defined tasks over autonomous problem-solving

• You’re uncomfortable working in a fast-moving, high-ambiguity startup

• You’re looking for a large team with established roadmaps and guardrails

Tech Stack

• Core: Python, FastAPI, TypeScript, React

• AI/ML: OpenAI, Anthropic, computer use, evals, voice agents

• Infrastructure: Azure, Docker

Process:

1. Initial Screen (30 min video call with one of the founders)

2. Take-Home Test (1h45 on HackerRank)

3. Interview (30 min video call with one of the founders)

4. In-Person Interview

Working at Fleetcraft

Our office is in central London, off Oxford Street. Being in the same room helps us move fast, make better decisions, and build with urgency.

We’re comfortable with chaos and energised by the pace. We also get that life isn’t always predictable. When something personal comes up, we trust each other to handle it with flexibility and maturity.

Compensation + Benefits

💰 Highly Competitive: £80k-£120k + equity

We’ll Back You to Do Your Best Work Need to relocate? Working late? Want a tool that helps you move faster? We’ve got you. Just tell us what you need we’ll make it happen.

Fleetcraft is an equal opportunities employer.