Founding Software Engineer

JR United Kingdom; Luton; On-site; GBP 60,000 - 100,000; Full time

Job summary

A leading AI start-up is seeking a Founding Software Engineer in Luton to join a high-performing team led by elite entrepreneurs. This hands-on role offers a unique opportunity to shape the architecture and direction of cutting-edge technology while securing significant equity in the venture.

Benefits

Highly competitive salary

Significant equity stake

Collaboration with top minds in AI

Qualifications

• 4+ years of experience in high-growth start-up environments.
• Strong engineering fundamentals and product mindset.
• Experience building and scaling real-world applications.

Responsibilities

• Work across the stack and influence architecture.
• Build the company from the ground up as a founding member.

Skills

Python

AWS

Education

Top-tier academic background

Job description

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Founding Software Engineer, Luton, Bedfordshire

Client: Arrows

Location: Luton, Bedfordshire, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Views:

4

Posted:

04.06.2025

Expiry Date:

19.07.2025

Job Description:

Founding Software Engineer - AI Start-Up (Central London | On-Site | Equity + Salary)

One of London’s most promising AI start-ups is looking for their first few Founding Engineers! Backed by top-tier investors and led by an elite founding team from Oxford, Cambridge, and Imperial, this venture is attracting serious attention within the AI space.

Currently in stealth mode, they’re now searching for a Founding Software Engineer to join the core team — someone ambitious, technically exceptional, and ready to help build the company from the ground up.

About the Company

Founded by alumni of successful AI start-ups, this is a business led by experienced entrepreneurs. With strong funding and a clear product vision, they're building cutting-edge technology leveraging the latest advances in AI to solve high-impact problems.

• Python — core backend and ML integration
• AWS — scalable, production-grade infrastructure

This is a hands-on role where you’ll work across the stack and influence the architecture, tooling, and product direction.

What They’re Looking For:

• A top-tier academic background — Oxbridge, Imperial, or equivalent
• 4+ years of experience in high-growth start-up environments
• Strong engineering fundamentals and a deep product mindset
• Experience building and scaling real-world applications from scratch
• Passion for AI and enthusiasm for working in a fast-moving, collaborative setting
• A team player who thrives in a full-time, in-office environment (Central London — 5 days/week)

What’s on Offer:

• Highly competitive salary
• Significant equity stake — this is a founding-level opportunity
• Close collaboration with some of the brightest minds in AI and software
• A chance to help shape company culture, technology, and trajectory
• The energy, speed, and ownership of an early-stage start-up — with real backing

If you’re an ambitious engineer ready for your next big challenge and want to be part of something truly special, this could be the opportunity that defines your career!