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Full-Stack Software Engineer

develop· London Area, United Kingdom· £60,000–£100,000/yrEquitySponsorship
Posted 12 Aug 2026 · Added 12 Aug 2026, 14:55
develop4.2 (21)
AI summary

You'll work with C#/.NET 10, SQL/T-SQL, Azure, React, and AI/agent/document-processing tools. This InsurTech startup is scaling its platform from hundreds toward 10,000+ daily users, building core features, customer experiences, and integrations. You join a team of about eight engineers.

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Full-Stack Software Engineer

.NET / C# / React | Farringdon (Onsite) | £60k-£100k + EMI

I'm working with a profitable, product-led InsurTech startup that's looking for Full Stack Engineers to join its growing engineering team.

They're around 23 people, with a small, high-calibre engineering team, and have reached an exciting point in their growth. With several large contracts in the pipeline, they're now scaling both the team and the platform, moving from hundreds of active users towards potentially 10,000+ daily users.

This is a great opportunity for an engineer who wants genuine ownership rather than simply picking up tickets.

The Opportunity

You’ll join a team of around eight engineers, working closely with the CTO and co-founder.

This is not an environment where engineers are handed small tickets and expected to simply implement them. You’ll be trusted to understand problems, make sensible technical decisions and take features from initial idea through to production.

The platform currently supports hundreds of active users, with significant growth expected over the coming years. The technical challenges are therefore becoming increasingly interesting, from scalability and performance through to architecture, integrations, automation and AI.

You could be working across:

Core platform development

New customer-facing experiences and extranets

Document functionality and processing

Integrations with external systems

AI and agent-based functionality

Performance and scalability

Architecture and infrastructure

Improving existing products as the customer base grows

Tech Stack

C# / .NET 10

SQL / T-SQL

Azure

React

AI / agent technology

Document processing

They’re particularly interested in engineers who are strong across the stack but naturally lean towards backend engineering.

AI experience is a bonus rather than a requirement.

What They Are Looking For

Has roughly 3–7 years' software engineering experience

Has worked in a startup or scale-up environment

Is genuinely full stack, ideally backend-leaning

Can demonstrate the impact of the products/features they've built

Takes ownership from idea through to production

Enjoys working in a fast-moving, product-led environment

InsurTech experience isn't required. FinTech, SaaS or other complex product environments would translate really well.

The Culture

This is a small, highly collaborative engineering team where you'll work directly with senior technical leadership.

The CTO is hands-on when needed but gives engineers significant autonomy. You’ll have plenty of opportunity to influence how things are built rather than simply following an established process.

The company is also deliberately office-based. They believe being together is important for collaboration, product development and the culture they're building, so five days a week in the

What's On Offer?

£60,000–£100,000 depending on experience

EMI equity options

25 days' holiday + bank holidays

Pension

Cycle to Work scheme

Three-month probation

Opportunity to work directly with the CTO and founding team

Significant technical ownership

The chance to help scale a product from hundreds of users towards thousands

If you're a product-minded Full Stack Engineer who wants to join an early-stage company where you'll have a genuine influence on the product and technical direction, please apply now!