Founding Engineer (Equity + Salary)

Affinity Labs; London; On-site; GBP 40,000 - 80,000; Full time

Job summary

A leading company in the software venture space, Affinity Labs, is seeking a Founding Engineer to join their innovative team in London. This role offers equity, a competitive salary, and the opportunity to build software businesses in collaboration with content creators, utilizing AI to speed up development. Ideal candidates are recent graduates with strong programming skills, particularly in React and Python, who are eager to take ownership and drive projects forward.

Benefits

Significant equity stake

Competitive graduate package

Weekly 1-on-1s with CTO

Qualifications

• Fresh degree graduating 2024/25.
• Expert in developing native apps with mobile-first mindset.

Responsibilities

• Use AI to turn product specs into production-ready code.
• Establish engineering culture and standards.
• Iterate rapidly through product development cycles.

Skills

React

Next.js

Supabase

Python

Prompt-engineering

Education

BSc/MSc in CS, AI, Maths or similar

Job description

Social network you want to login/join with:

Founding Engineer (Equity + Salary), London

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Client:

Affinity Labs

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

cbc5f29027fa

Job Views:

6

Posted:

12.07.2025

Expiry Date:

26.08.2025

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Job Description:

We’re building the future of company creation - a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're unlocking a new frontier where software is rapidly built and distributed through trusted digital communities.

We aim to launch ventures 10x faster and cheaper than traditional methods using our internal "AI factory": a multi-agent architecture, reusable component libraries, and a growing knowledge graph that learns from every product we ship.

Tasks

Responsibilities

• Code with AI-first speed. Use AI to turn product specs into production-ready React, Supabase, and serverless back-ends in days, not weeks.
• Architect for scale (and scrappiness). Apply clean, hexagonal patterns so v1 can evolve without rewrites.
• Prototype → pilot → product. Move fast through validation loops: hack the MVP, shadow users, ship the fix, repeat.
• Wear many helmets. One sprint you’re spinning up CI/CD; the next you’re tweaking prompts or jumping on a creator livestream to debug user feedback in real time.
• Set the engineering culture. Establish the rituals, docs, and testing standards that future hires will learn from you.

Requirements

Requirements

• Fresh degree, fierce skills: BSc/MSc in CS, AI, Maths, or similar, graduating 2024/25.
• Software Development: You’re an expert in developing native apps, with a mobile-first mindset. You must be able to build at lightning speed without compromising quality.
• Shipping Experience: You’ve shipped AI side projects - or research - that prove you can learn fast and finish.
• AI-native developer: You already treat LLMs as teammates and using agents to automate tasks.
• Grit & ownership: When the build breaks at 11 pm, you pour coffee.
• Edge-of-curve learner: You track the latest AI tools, play with new MCPs, and deploy multi-agent systems
• Action oriented: Strong bias toward rapid execution and experimentation.

Must-haves

• React / Next.js, Supabase / Postgres, Python back-end chops
• Prompt-engineering or fine-tuning experience

Nice-to-haves

• Familiarity with Stripe, Discord, TikTok or other creator-economy tools
• Side hustle, hackathon wins, or open-source contributions
• Equity: Significant
• Salary: Competitive graduate package with rapid step-ups tied to revenue milestones (upon shipping or fundraising)
• Creator collabs: Brainstorm features with the largest creators who reach millions.
• Mentorship: Weekly 1-on-1s with our CTO and access to operator-investors across the studio network.

If interested in applying, please include one paragraph on the coolest thing you built with an AI tool.

More on why this is a career launchpad

• Own the code & the company. You step in as Founding Engineer #1, receiving a meaningful equity stake from day one.
• Ship faster with AI at your side. We’ve baked AI tools into our workflow so you spend time solving problems, not yak-shaving boilerplate.
• Ride a rocket, not a conveyor belt. Affinity Labs is a venture studio that partners with top content creators to turn influence into scalable software. Think “Prime for software”
• Grow like crazy. You’ll architect, build, and launch multiple products each year. The shipping reps you’ll get in 12 months here would take 3 - 4 years in a typical startup.
• Learn from builders, not bosses. You’ll work shoulder-to-shoulder with a founding team that has scaled VC-backed startups, closed multi-million-pound term sheets, and shipped products used by millions.