Founding (Senior) Engineer | Early-stage Start-up | London

Oliver Bernard; Greater London; On-site; GBP 110,000 - 170,000; Full time

Benefits offered by this job

Equity

Job summary

Oliver Bernard in London is seeking a Founding Software Engineer for an early-stage technology company. The role is at a formative stage, giving you a genuine say in product direction and a chance to shape the engineering architecture.

Candidates should have 5+ years in React and TypeScript, backend experience with Node.js or Python, and a track record of owning major product areas. Startup/high-autonomy experience is preferred.

Qualifications

• 5+ years experience with React and TypeScript.
• Strong backend experience with Node.js or Python.
• Proven track record of owning significant product areas.
• Experience in startup, scale-up or high-autonomy environment.
• Excellent communication with technical and non-technical stakeholders.
• Experience with AI-enabled products or data-heavy systems is a plus.

Responsibilities

• Turn ideas into production-grade software.
• Shape technical foundations and product direction.
• Collaborate closely with the founding team.
• Engage with customers and understand problems first-hand.

Skills

React

TypeScript

Node.js

Python

Product ownership

Communication

Tools

Node.js

Python

Job description

Founding Software Engineer | Six Figure Salary + Equity | London

I’m working with an early-stage technology company that is looking for a senior engineer to join at a genuinely formative stage of the business.

You’ll work directly with the founding team, have a significant say in how the product develops and take responsibility for turning ideas into production-ready software.

The company is tackling a complex problem sitting at the intersection of software engineering, data and AI, with a product that is already being used by customers and plenty of scope still to shape what comes next.

What they're looking for:

• 5+ years experience with React and TypeScript
• Comfortable working across the backend, using Node.js, Python or similar
• A track record of taking ownership of significant product areas
• Experience in a startup, scale-up or similarly high-autonomy environment
• The ability to communicate clearly with both technical and non-technical people
• Experience with AI-enabled products, data-heavy systems or complex B2B software would be particularly interesting.

Why consider it?

• Join while the engineering team is still small enough for your decisions to genuinely matter
• Work alongside founders who are deeply involved in the product and technology
• Help shape both the technical foundations and the product itself
• Get exposure to customers and understand the problems you're solving first‑hand
• Take on a broad engineering remit rather than being restricted to one part of a large system
• Meaningful equity with the opportunity to participate in the company's growth

London-based. UK right to work required.