Senior Backend Engineer, Go

Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract

We’re hiring multiple Senior Go Backend Engineers (contractors) to join a large-scale public sector transformation programme delivered by a highly regarded product consultancy.

This work is focused on moving critical systems away from a legacy C# ecosystem into a modern, scalable, cloud-native architecture.

You’ll be joining cross-functional teams responsible for building resilient backend services that support high-impact, user-facing products used at national scale.

This is a 6-month initial contract, ideal for engineers who enjoy working on meaningful systems, solving complex migration challenges, and delivering production-grade backend services, fast.

The Role | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract

This is a hands-on backend engineering role with a strong focus on system design, scalability, and delivery.

You’ll be expected to:

  • Build and scale backend services using Go within a cloud-native AWS environment
  • Contribute to the migration of legacy C# systems into modern distributed architectures
  • Design and develop APIs and event-driven systems
  • Work closely with product, design, and other engineers in cross-functional teams
  • Apply modern engineering practices including TDD, CI/CD, and Infrastructure as Code
  • Write clean, maintainable, and well-tested production code
  • Contribute to architectural decisions balancing performance, scalability, and delivery timelines
  • Support continuous improvement through code reviews, pairing, and knowledge sharing

This role suits engineers who enjoy working on real-world systems at scale and are comfortable navigating complexity in modernisation programmes.

Technical Requirements | Senior Backend Engineer, Go (Contract) | C# to Go Large-Scale Migration, AWS, SQL, Distributed Systems | £400-450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract

Strong, recent experience with:

  • Backend development using Go (Golang) in production environments
  • Designing and building scalable APIs and distributed systems
  • AWS cloud services (e.g. Lambda, ECS/EKS, S3, RDS)
  • SQL and data modelling (relational databases)
  • Working within microservices or event-driven architectures
  • CI/CD pipelines and modern delivery practices
  • Infrastructure as Code (e.g. Terraform or similar)
  • Test-driven development and automated testing strategies
  • Observability, performance tuning, and system reliability

Nice to Have

  • Experience migrating legacy systems (e.g. C#/.NET to Go)
  • Exposure to containerisation (Docker, Kubernetes)
  • Experience in public sector or highly regulated environments
  • Familiarity with event streaming (Kafka, SNS/SQS, etc.)

Why This Contract Stands Out | Senior Go Backend Engineer (B2B, Contract) | Golang, AWS, SQL, Distributed Systems | Large-Scale Migration Programme | £400–450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract

  • £400-450 per day
  • Outside IR35
  • Fully remote within the UK
  • Long-term programme with strong likelihood of extension
  • Opportunity to work on systems with real national impact
  • Modern tech environment with strong engineering practices
  • Product-led teams with a pragmatic delivery culture

This isn’t a greenfield fantasy, it’s a high-impact backend role focused on modernising critical systems and delivering software that genuinely matters at scale.

If interested, in the Senior Go Backend Engineer (B2B, Contract) | Golang, AWS, SQL, Distributed Systems | Large-Scale Migration Programme | £400–450/day | Outside IR35 | Fully Remote (UK) | 6-Month Contract please apply here and WE will back get to you if it\'s a good fit for the client. :)

Salary: GBP 400 - 450 per day Experience: 5 years required
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