Principal Software Engineer

1 week ago

London, Greater London, United Kingdom Orbis Full time £170,000 - £255,000 per year
Principal Software Engineer (Golang | Distributed Systems)

London - On-site

Up to £170,000 base + 25% bonus + excellent benefits

Permanent

I'm partnered with a high-growth technology company building a world-class data and services platform that processes tens of billions of monthly requests - powering real-time insights for millions of users globally.

They're hiring a Principal Software Engineer (Golang) to join their London engineering team as a hands-on technical leader - driving architectural direction, mentoring engineers, and solving complex distributed systems challenges at scale.

The Opportunity
  • Architect and scale high-throughput, event-driven systems built in Go
  • Lead the evolution of real-time APIs and data platforms handling billions of requests
  • Stay deeply hands-on with Golang while influencing design and long-term technical strategy
  • Drive improvements in observability, testing, and performance across all services
  • Mentor senior engineers and play a key role in shaping engineering culture
What They're Looking For
  • 8+ years' backend engineering experience, ideally at Staff / Principal / Tech Lead level
  • Expert-level proficiency with Golang in production
  • Proven track record designing distributed systems and event-driven architectures (Kafka, RabbitMQ, WebSockets)
  • Deep understanding of PostgreSQL, Redis, and high-performance data systems
  • Strong DevOps mindset - CI/CD, infrastructure as code, observability (Grafana, Prometheus, OpenTelemetry)
  • Exceptional communicator, able to influence architecture and direction across teams
Nice to Have
  • Experience with AWS, Kubernetes, or other cloud-native environments
  • Exposure to financial data systems or blockchain technologies
  • Passion for building scalable, resilient systems and leading by example
This is a great opportunity to work on high-scale systems, shape architecture at the highest level, and remain deeply technical - all within a top-tier engineering environment.

If this sounds like the kind of challenge you're after, message me directly - happy to share full details in confidence.

Apply for this role

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