Staff Software Engineer | Founding Team

Founding Engineer – Series A DeepTech Startup

We’re working with one of the most technically impressive early-stage engineering teams in Europe.

This is a rare opportunity to join a genuinely high-calibre deeptech startup immediately after Series A funding, at the exact point where product-market fit has been proven and the company is beginning to scale aggressively across the UK and US.

The founders are both highly technical operators who have already built and exited a venture-backed startup in a transaction worth over $500M. They know what exceptional looks like — and they are building a team exclusively of elite engineers who want to operate at an extremely high technical bar.

This is not an AI company.

The focus here is building deeply technical, high-performance software products with real-world complexity, difficult engineering problems, and enormous scale ambitions. The company already has paying enterprise customers on both sides of the Atlantic and is now entering the next phase of growth.

They are looking for outstanding software engineers who are:

• Intensely curious
• Deeply technical
• Genuinely obsessed with engineering
• Startup-motivated
• Language agnostic
• Excited by difficult problems
• Interested in ownership, autonomy and speed

This is the kind of environment where engineers debate systems design for fun, care about elegance and performance, and want to work alongside people who are simply exceptional at what they do.

You do not need experience in a specific language or framework. What matters is raw technical ability, fundamentals, problem-solving capability, and the desire to build.

What You’ll Be Doing

• Building core product and platform systems from the ground up
• Working directly with the founders on technical and product direction
• Taking ownership of major architectural decisions
• Shipping rapidly in a high-trust, low-ego engineering culture
• Helping shape engineering standards, culture and hiring as the company scales
• Solving genuinely difficult technical problems at scale

What They’re Looking For

• Exceptional software engineering fundamentals
• Strong academic background or evidence of elite technical ability
• Previous startup experience is valuable but not essential
• Passion for technology, systems and building products
• Desire to work in an intense, ambitious startup environment
• Engineers who want responsibility early and thrive in high ownership environments

Why Join?

• Opportunity to join immediately post-Series A with proven product-market fit
• Learn from founders who have already built and exited a hugely successful company
• Massive scope for progression and impact
• Ability to shape the product and engineering culture from day one
• Work with an unusually strong density of technical talent
• Meaningful equity upside as the business scales internationally

This is not the right role for someone looking for a comfortable corporate environment.

It is an opportunity for ambitious, deeply technical engineers who want to help build a category-defining deeptech company from the inside, alongside an elite team.