Who you are

- Strong TypeScript. You're comfortable owning a service end to end, from schema to deployment

- Fastify or a similar Node.js framework, and enough HTTP know-how that it rarely surprises you

- Event-driven instincts: you know what idempotency means in practice and why the outbox pattern exists

- Full-stack comfort, Next.js included. You ship the frontend as happily as the service behind it

- Datadog fluency (APM traces, log search, metric queries), SQL for diagnostics during an incident, and GCP basics such as Pub/Sub backlogs and DLQs

- Experience leading production incidents, not just being in them. You communicate clearly under pressure and drive to a fix
- An eye for systemic problems at review time, not at post-mortem time, and a habit of making the people around you better

- Regular use of AI tools like Cursor or Claude Code, and a keen interest in helping the team get more out of them

- You don't need to know our Trust & Safety domain yet (the review lifecycle, vetting disposition logic, publish timing). You'll pick it up. What matters is that you learn fast and take it seriously

- Don't self-select out because you don't tick every box. We'd rather meet you

What the job involves

- As our next Senior Software Engineer in Trust & Safety, you'll own the systems that decide how tradespeople are checked, how reviews are processed and how our marketplace stays honest at scale

- You'll work alongside the vetting and reviews teams, who are on the front line of trust, and build the infrastructure that lets them work with confidence

- When something breaks in production, you'll lead the response

- When something looks brittle at design time, you'll say so

- Own and evolve the systems behind how tradespeople are verified,



how reviews flow through our platform and how content is moderated

- Lead the response when things break: read distributed traces, correlate logs across services and find the cause, not just the symptom

- Design event-driven workflows that are reliable by default: idempotent, retryable, with dead-letter handling that doesn't need a 2am wake-up to unpick

- Work directly with the vetting and reviews teams to understand what trust means day to day, then build systems that hold up to it

- Tighten the operational seams: better monitoring, clearer alerting, locked-down auth and outbox patterns that keep data consistent

The application process

- Screening call with one of our Talent Acquisition Partners

- Technical interview with members of the team

- Final stage with the hiring manager and a senior stakeholder

Benefits

- ? Annual company wide bonus plan - when company wins, we all win

- ? Wellness cashplan- Claim back money on opticians, dentists and hospital stays so you can keep your health in check.

- ?‍⚕️ 24/7 Online GP Service - Health App

- ? Gym membership - Pure gym membership

- ?️ Discounts and cashback for 100s of retailers across the UK

- ? Electric Vehicle Salary Sacrifice Scheme

- ? Smart Tech Scheme - get the gadgets you want whilst spreading the payments interest free for up to 24 months

- ? Free food & Drinks

- ? Company events

- ? Life assurance

- ? Private Medical - depending on the role you may qualify for a PMI

- ?? Pension - 4%

- ?? 26 Weeks full maternity pay

- ?? 4 Weeks paternity pay

- ?️ Buy and sell holiday

- ?️ Charity leave - How does one week every year to support a cause close to you in addition to your annual leave sound?

- ? Recommend a friend scheme

- ? Workplace Nursery scheme- committed to helping ease that financial pressure for our valued employees

📌 Senior Software Engineer (Barcelona)
🏢 Checkatrade
📍 Barcelona