Founding Engineer
Senior Engineer (£90k-£120k) - Greenfield Platform Build
This is a senior, high-trust engineering role for someone who wants to build core systems properly, not inherit legacy or operate inside rigid delivery structures.
You'll be joining a small, engineering-led team at an early stage, working on a greenfield platform with long-term technical ambition. The focus is on building reliable, scalable software that will sit at the heart of a complex product.
This is not consultancy work and not feature factory delivery.
You'll have genuine ownership over how systems are designed, built, and evolved.
What you'll be doing
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Designing and building core backend services and APIs
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Contributing to architectural decisions that underpin future scale
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Working across the full lifecycle, from problem definition to production
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Building systems that prioritise reliability, performance, and maintainability
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Collaborating closely with a small, senior team where quality matters
What they're looking for
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Strong experience as a backend or backend-leaning full-stack engineer
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Comfortable operating in early-stage, ambiguous environments
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Experience building production systems that need to be robust and dependable
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Pragmatic engineering mindset - knows when to move fast and when to slow down
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Enjoys ownership, responsibility, and technical depth
Context
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Early-stage, product-led business
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Small, senior engineering team
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High autonomy, low bureaucracy
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Engineering decisions genuinely matter
- London fully onsite
- Uop to £120k + equity
We’re proud to be a 5-star rated company on Google. See what people say about us.
Corecom is well deserving of this award which places it in fine company with a small elite of other organisations that truly understand and engage the value of people. They place a high commitment on continually developing the business, demonstrated through the passion and enthusiasm of everyone from the MD to the team members. The innovation culture is evident throughout and employees have lots of ideas for successful change. They say that they are listened to and believe that Corecom is a great place to work, with very high levels of trust both upwards and down. People see that it has a great future and there are excellent levels of optimism throughout.
