Senior Software Engineer

Senior Software Engineer (Go) - Security & Secrets The Role As a Senior Go Engineer on the Platform Security & Secrets Team, you'll design and build the services that underpin authentication, authorisation, and secret management across Form3's platform. Performance, security, and reliability are at the heart of everything we do. You'll take ownership of critical systems that ensure our payments platform remains secure and available at scale. Our engineers work with a high degree of autonomy and collaborate closely to solve complex challenges, share ideas, and design innovative solutions. You'll play a key role in maintaining high-performance standards and driving cost-efficient improvements that impact the entire platform. What You'll Do: Design, develop, and optimise high-performance Go microservices that power authentication, authorisation, and RBAC. Build and operate the services that enable teams to authenticate with payment schemes and sign messages securely. Develop systems that let teams manage and access secrets securely, with minimal friction. Continuously refine services for cost-efficiency and performance, maintaining strict availability and latency SLOs. Ensure high availability in a Kubernetes multi-cloud environment running across AWS, Azure, and GCP. We're Looking For: Essential: 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 Desirable: Understanding of cloud-native security practices and identity systems Exposure to Kubernetes as an orchestrating platform and Kubernetes operator patterns Exposure to Hashicorp Vault for secret management Tech Stack: Here are a few of the tools and methodologies we utilise: Infrastructure: AWS, GCP, Azure, Kubernetes Platform: CockroachDB, NATS, Vault, Cloud HSMs, cert-manager Tools: Terraform, GitHub, Prometheus, Tilt Code: Go (and a little Java), containerised microservices, CQRS, open-source Ways of Working: TDD/BDD, Pair Programming, 100% remote, SecDevOps The Team: The Platform Security and Secrets Team builds and operates low-latency, mission-critical, stateful services that power our payments infrastructure 24x7, 365 days a year. As our platform runs active/active/active across three cloud providers, we face fascinating challenges in distributed computing, reliability, and scalability. We take ownership of our work end-to-end and collaborate closely to overcome challenges together. Our team provides the essential building blocks and authentication flows that enable other teams across Form3 to deliver securely and effectively. We value open collaboration in solving complex problems, making architectural decisions, and driving innovations in scale and cost efficiency. It's a supportive environment where expertise is shared freely, and great ideas are developed together. Interview Process: Stage 1: Screening Call with Talent Team Stage 2: Take home test (Go) Stage 3: Technical Interview Stage 4 (optional): 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: We are able to accept applications from the following countries: Germany, Netherlands, Portugal, Spain, UK 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: 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 careers@form3.tech clearly stating your consent for us to process this data. For more information please refer to our Recruitment Data Policy.