Senior Software Engineer (Go) - Form3

The Role

As a Senior Software Engineer at Form3, you’ll work on established, high-volume services that sit at the heart of Form3’s cloud-native payment platform. These are critical systems where reliability, resilience, and operational excellence matter every single day.

This is a role for engineers who enjoy evolving critical systems at scale. You’ll be working on mature, high-volume services where thoughtful design, careful testing, operational discipline, and reliability are just as important as delivering new capability.

You’ll solve complex engineering challenges across services that support real-time payment flows, high availability, fault tolerance, security, and performance within a microservice architecture. You’ll need to think carefully about how changes are designed, tested, released, and operated, balancing delivery speed with the discipline required for mission-critical financial infrastructure.

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

We’re Looking For

• Deep understanding of designing and building distributed systems
• Experience 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 and a passion for sharing knowledge and collaborating with others

Tech Stack

• 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

Interview Process

• Stage 1: Screening Call with Talent Team
• Stage 2: Take home test
• Stage 3: Technical interview (may be separated into two parts)
• Stage 4: Team interview

Salary Ranges

• Germany: €90,000 - €140,000 EUR
• Netherlands: €85,000 - €125,000 EUR
• Portugal: €65,000 - €95,000 EUR
• Spain: €65,000 - €95,000 EUR
• United Kingdom: £80,000 - £120,000 GBP