Senior Ruby on Rails Engineer | Brighton | 4-Day Week/1 Day in Office
We’re recruiting on behalf of a small, profitable B2B SaaS product company based in Brighton. They’ve deliberately stayed lean rather than scaling headcount, a tight, senior team building a product used by clients who rely on it daily. The stack is a single Ruby on Rails monolith (recently reconsolidated from a more fragmented setup) with a Hotwire-style frontend, doing network and API heavy work. This isn’t a React/JS-heavy shop, it’s Rails-first, and performance is not a bottleneck for what they do.
They’re looking for a senior engineer to act as a genuine “number two” to the CTO someone who can unblock the team, own technical decisions day-to-day, and help shape how the product scales without losing its focus.
What you’ll be doing
- Acting as senior technical lead alongside the founder, taking real ownership of architecture and delivery
- Working across a Rails monolith with a Hotwire frontend, pragmatic, well-tested code over framework sprawl
- Doing network/API-heavy engineering work
- Helping shape technical direction for a small, high-trust team rather than managing a large one
- Mentoring and supporting the wider team, including an incoming mid-level hire
What they’re looking for
- Strong, demonstrable Ruby on Rails experience at senior level
- Comfortable owning technical decisions with minimal oversight, a proactive “number two,” not just a senior IC
- Experience with monolith architecture, API-first/network-heavy systems
- Genuine interest in Hotwire/server-rendered approaches over heavy JS frameworks
- Able to commute to Brighton one day a week for in-person collaboration
- UK right to work
The offer
- Permanent role
- Four-day working week
- Remote-friendly, with one in-person day in Brighton
- Salary assessed against demonstrable value, strong applications with justified expectations won’t be capped by a rigid band
- A genuinely small, senior team, not a scale-up sausage factory
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