Staff Software Engineer

Checkout.com·Londonsenior

In short

→Ingeniero de software sênior que define arquitectura para sistemas de pagos a gran escala.
→Día a día: diseño de sistemas resilientes, liderazgo técnico, mejora de observabilidad y mentoría.
→Destacado: Trabajas en un sistema que procesa 10 mil millones de transacciones al año.

Fluent English required for collaboration across global teams.

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The questions they'll ask you

1. ¿Cómo diseñarías un sistema de pagos idempotente para evitar duplicados bajo alta carga?

🔒 +7 more questions

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💵 USD · Remote · No visa

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What they ask for

✓Experiencia comprobada en sistemas backend distribuidos en producción.
✓Capacidad para diseñar para alta throughput y baja latencia.
✓Conocimiento profundo de patrones de resiliencia en sistemas distribuidos.
✓Dominio de .NET o Java con código productivo y mantenible.
✓Experiencia con arquitecturas event-driven y streaming.
✓Experiencia práctica en AWS y Azure.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

AWSAzure.NETJavaevent-driven architecturesstreaming architecturesrelational databasesnon-relational databasesdistributed systemsobservability

Who should you write to at Checkout.com?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

com . You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day. We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers. Whether you want to book a holiday, order food, renew a subscription, or check out online, there’s a good chance our tech powers the payments behind the scenes. Our platform helps the most ambitious businesses deliver effortless digital experiences, at scale. If you want to do career-defining work, you’ve come to the right place. We move fast, think globally, and believe great teams are built by hiring exceptional people with conviction, curiosity, and the desire to make an impact. With 20 offices across six continents and London as our HQ, we’re shaping the future of fintech – and we’re just getting started. com , you will set the technical direction for systems that process payments at very high throughput, where correctness matters on every single transaction and has significant impact. This is a role for engineers who are energised by scale and by the hard trade-offs that come with it: latency budgets, failure domains, consistency guarantees, and the operational reality of running critical infrastructure around the clock. You will operate as a force multiplier across multiple teams - shaping architecture, raising the engineering bar, and turning ambiguous, business-critical problems into designs that can be delivered incrementally. We're looking for individuals with deep technical judgement, strong ownership, and a pragmatic approach to breaking big problems into smaller iterations that deliver value continuously.

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