Senior Software Engineer

Senior Software Engineer | YC-Backed Startup | Founding Team | £90K-£120K + Equity

I'm working with an exciting YC-backed startup in London that's just closed a multi-million pound funding round and is looking for a Senior Software Engineer to join their founding engineering team.

Despite being early-stage, they're already punching well above their weight – with paying customers onboarded and serious traction in their market. This is a rare opportunity to get in at the ground floor of something special.

What you'll be doing:

• Working directly alongside the founders to build and scale the product
• Taking real ownership over technical decisions and architecture
• Shaping the engineering culture and technical direction from day one
• Building features that directly impact paying customers

The tech:

• Python
• TypeScript
• React/Next.js

What's in it for you:

• £90,000 - £120,000 base salary + Equity
• 3 days per week in their London office (hybrid working)
• Direct impact on product and company direction
• Work with world-class founders backed by Y Combinator

What they're looking for:

• Strong commercial experience with Python and TypeScript
• Experience with React/Next.js or similar modern frontend frameworks
• Someone who thrives in fast-paced, early-stage environments
• A builder who wants ownership, not just tickets to complete

If you're a senior engineer looking to step into a founding team role at a startup with genuine momentum, let's talk.