Senior Software Engineer (Go) - US Payments (Contract)

Form3 (via Otta)

14h • Remote

About The Position

Form3 is seeking several Senior Software Engineer contractors to join their US Software Engineering team. The role involves delivering new products within the US Payments proposition, focusing on critical payments infrastructure. Contractors will contribute to the design, build, testing, and launch of new Zelle and Fedwire capabilities. The work will be primarily in Go on Form3’s cloud-native platform, applying existing engineering patterns while addressing challenges specific to high-volume, resilient, and regulated payment systems. Key responsibilities include designing and implementing new US payments gateway functionality, collaborating with various teams to refine requirements, contributing to technical design, supporting non-functional requirements (resilience, performance, disaster recovery), establishing and improving monitoring and alerting, supporting production-readiness activities, and producing technical documentation. All work must align with Form3’s engineering standards, security expectations, and the requirements for critical payments infrastructure.

Requirements

• Deep understanding of designing and building distributed systems
• Familiarity with cloud and containerisation technologies, test automation tools and CI/CD pipelines
• Experience with Go, along with a “right tool for the job” mentality
• Great communication skills who enjoy sharing knowledge and collaborating with others

Nice To Haves

• Enjoys working on complex challenges within critical software where high performance and robustness are essential
• 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

Responsibilities

• Design and implement new US payments gateway functionality in Go, aligned to product requirements and agreed technical architecture. This includes payment flows, scheme-specific behaviours, error handling, validation and operational requirements, as well as comprehensive automated integration tests covering this functionality.
• Work collaboratively with Product, Engineering and other functions to refine requirements and validate implementation choices.
• Contribute to technical design activity, including design proposals, implementation plans and problem-solving within Form3 platform architecture.
• Support non-functional requirements related to resilience, performance, disaster recovery, failure-mode testing and operational readiness.
• Establish and improve monitoring, alerting, telemetry and observability to support operational visibility from development through to production.
• Support production-readiness activity, including release preparation, final validation, production deployment and post-launch issue resolution.
• Produce and maintain technical documentation, including design notes, testing documentation, deployment guidance, operational procedures and runbooks.
• Ensure all work aligns with Form3’s engineering standards, security expectations and the standards required for critical payments infrastructure.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed