Form3 Logo

Form3

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

Posted One Month Ago
In-Office or Remote
Hiring Remotely in London
Senior level
In-Office or Remote
Hiring Remotely in London
Senior level
Senior contractor to design, build, test and launch US payments gateway functionality (Zelle, Fedwire) in Go on a cloud-native platform. Work includes designing distributed systems, implementing payment flows and error handling, writing automated integration tests, ensuring resilience/performance/operational readiness, improving observability, supporting production deployments, and producing technical documentation while collaborating with Product and Engineering.
The summary above was generated by AI

THE PROJECT 📝 

Form3 is looking for several Senior Software Developer contractors to work alongside our US Software Engineering team to deliver new products within our US Payments proposition. 

This is an opportunity to work on critical payments infrastructure in a highly technical environment, contributing to the design, build, testing and launch of new Zelle and Fedwire capabilities. You’ll be working in Go on Form3’s cloud-native platform, applying proven engineering patterns from our existing payments services while solving the specific challenges that come with high-volume, resilient, regulated payment systems. 

  • 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. 

 

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 

 

INTERVIEW PROCESS ✍️ 

Stage 1: Screening Call with Talent Team 

Stage 2: Take home test 

Stage 3: Technical interview (may be separated into two parts) 

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’re hiring the right person! 

 

LOCATIONS📍

Here are the locations that we are looking to engage with contractors from. Please note, we are not looking to engage with contractors outside of these locations.

  • Canada (Ontario only)

All contractors start their first day in our office to collect the equipment needed to work remotely. 

 

ABOUT FORM3 💭 

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

What we do | Life at Form3 | 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 [email protected] clearly stating your consent for us to process this data.

For more information please refer to our Recruitment Data Policy. 

Similar Jobs

2 Hours Ago
Easy Apply
Remote or Hybrid
UK
Easy Apply
Expert/Leader
Expert/Leader
Cloud • Information Technology • Security • Software • Cybersecurity
Owns regional partner program strategy and execution, including roadmap development, program design, launches, adoption, performance improvement, and scalable global playbooks. Partners with channel, sales, and global program leaders to prioritize opportunities, develop partner offers, influence executives, resolve cross-functional issues, and deliver measurable business outcomes. The role requires expertise in partner ecosystems, routes to market, commercial models, AI-enabled tools, and complex B2B technology environments.
Top Skills: Ai/MlCloudCybersecurityPredictive AnalyticsSaaSSaseZero Trust
5 Hours Ago
In-Office or Remote
Senior level
Senior level
Big Data • Cloud • Software • Generative AI • Big Data Analytics
Drive new-logo sales across Global 2000 accounts by developing consultative sales strategies, generating pipeline, leading discovery and business value assessments, presenting to executive buyers, and closing complex software cloud deals. The role partners with sales engineering, marketing, partnerships, and customers while selling technical products to data and engineering teams. It is ideally hybrid in London one to two days weekly.
11 Hours Ago
Remote
England, GBR
Senior level
Senior level
Consumer Web • eCommerce • Machine Learning • Software • Sports • Analytics
Supervise Workplace and Facilities operations for the PSA London location. Lead and develop workplace staff, coordinate custodial services, manage vendors and contracts, oversee preventative maintenance, and administer site services such as mail, food and beverage, supplies, and employee support. Handle workplace requests, visitor coordination, facilities equipment vendors, and health and safety improvement projects while partnering with operations and business leaders.
Top Skills: Google DocsGoogle SheetsSlack

What you need to know about the Bristol Tech Scene

Along with Gloucester, Swindon and Bath, Bristol is part of the "Silicon Gorge" tech hub, a region in the U.K. renowned for its high-tech and research-driven industries, with a particular emphasis on sustainability and reducing environmental impact. As the European Green Capital, Bristol is home to 25,000 cleantech companies, including Baker Hughes and unicorn Ovo Energy. The city has committed to achieving net-zero emissions within the next decade.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account