Senior Software Engineer (UK/EU)

At Form3, our mission is simple but powerful: To design, build and run the technology that will power the future of payments.

As a Senior Software Engineer, you will be part of a team working on the critical infrastructure that underpins global payments. This is a rare opportunity to help shape the systems that move money at scale both securely, reliably and in real time.

WHAT YOU'LL BE DOING ️

• Designing, building, and running cloud-native microservices in Go that are the backbone of our real-time payments platform
• Building systems that are highly available, low-latency, and scalable, handling billions of payment requests with precision and resilience
• Taking full ownership of services: from initial design and implementation to deployment and production support
• Working with a mindset where cost-efficiency, observability, and operational excellence are core to how we build
• Collaborating closely with other engineers in a flat, autonomous team structure, with a strong focus on code quality, simplicity, and continuous improvement
• Working with modern tooling and technologies such as Golang, Kubernetes, CockroachDB and NATS JetStream in a highly automated DevOps environment

• Deep understanding of designing and building distributed systems
• Enjoys working on complex challenges within critical software where high performance and robustness are essential
• Familiarity with cloud and containerisation technologies, test automation tools and CI/CD pipelines
• Interest in owning projects end-to-end and supporting them as they go live in production
• Appreciation of clean code and software engineering best-practice
• Experience with Go, along with a "right tool for the job" mentality
• Great communication skills who enjoy sharing knowledge and collaborating with others

TECH STACK ️

Here are a few of the tools and methodologies we utilise:

• Infrastructure: AWS, GCP, Azure, Kubernetes
• Platform: CockroachDB, NATS JetStream, Elasticsearch, Vault, Cilium
• Tools: Terraform, Flux, GitHub, Prometheus, Pact.io, Tilt
• Code: Go (and a little Java), containerised microservices, CQRS, open source
• Ways of working: TDD/BDD, Pair Programming, 100% remote, SecDevOps

We are an award-winning cloud-native payment technology provider for financially regulated institutions. Launched in 2016, we've doubled in size year on year as we continue to redefine what a truly instant payment experience means.

We celebrate diversity, promote entrepreneurialism and are committed to giving everyone a say in shaping our business. Here you will grow as a person and accomplish incredible things. A career at Form3 is empowering, inspiring and fun. Join us and help shape the future of payments.