Senior Software Engineer (Go)

Senior Software Engineer (Go)

100% Remote (UK/EU)

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.

You'll work closely with experienced engineers, product teams and operational stakeholders to improve, evolve and run services that customers depend on. This could include enhancing existing payment capabilities, improving service resilience, simplifying complex systems, reducing operational risk, or building new functionality into mature services without compromising stability.

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
• 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

The Team

At Form3, our engineering team is the backbone of everything we do. A remote first group of highly skilled, collaborative, and forward-thinking individuals passionate about building secure, scalable, and reliable payment technology. We operate in a true DevOps model, where engineers take full ownership of the software lifecycle, from design and implementation to deployment and operation in production.

We value clean code, automation, simplicity, and continuous improvement. Our engineers work in small, autonomous teams with a flat structure and minimal bureaucracy, promoting a culture of trust, transparency, and accountability. We use modern technologies (Golang, Kubernetes, AWS, and more) and embrace a cloud-native, event-driven architecture to support our microservices platform.

Expect a culture of knowledge sharing, where pull requests are thoughtful conversations, and technical decisions are made collectively and with care. If you're motivated by solving complex problems at scale and enjoy working with other talented engineers who care deeply about doing things right, you'll feel right at home here.

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

We always aim to stick to the above process, however there may be occasions when an additional interview stage is needed for us to be sure we find the best fit for the role!

Hiring Locations & Salary Ranges

Here are the locations that we are hiring from for this position, along with the salary range per location.

Where you sit within the below range will depend on a number of factors, including experience, skills and market considerations. These ranges reflect base salary only - you'll also have access to our wider benefits package, which is outlined in the benefits section below.

• 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

All new joiners start their first day in our office to collect the equipment needed to work remotely. We'll also arrange for some of your team to come in to say hi, ensuring you're supported and have a positive first few days with Form3!

About Form3

Revolutionising the world of payments with our cutting-edge technology and innovative solutions. For more information about life at Form3 check out the following pages:

What we do | Life at Form3 | Benefits | Payments Cannot Fail Series |.Tech Podcast

Our DEI&B Commitment

We hire talented people from a variety of backgrounds and experiences and are committed to a work environment based on diversity, open-mindedness and curiosity. We're united by our company values (we even created them together!) and we celebrate our unique differences.

Our employee lifecycle processes are designed to embrace equal opportunity and prevent discrimination against our people regardless of personal characteristics. It is our strong belief that the more inclusive and belonging we are as a business, the better our work will be.

As an inclusive employer, we guarantee to interview all neurodiverse and physically disabled applicants who meet the minimum criteria for this role. We also encourage candidates to notify us of any reasonable adjustments that may be required during the recruitment process. This includes providing job adverts in alternative, accessible formats or adjustments required at interview stage.

If you consider yourself to be neurodiverse or physically disabled under the UN definition of disability and would like to be considered under this scheme and/or require any reasonable adjustments please let us know by sending an email to View email address on click.appcast.io clearly stating your consent for us to process this data. For more information please refer to our Recruitment Data Policy.