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Staff Engineer (Golang / High-Throughput Systems) – B2B SaaS – Remote UK
A market-leading B2B SaaS company is seeking an exceptional Staff Engineer to join their engineering organisation and help design and scale high-performance systems powering their industry-leading platform.
With around 500 employees, this profitable unicorn has established itself as the market leader within its space, delivering innovative technology solutions to businesses globally. As the company continues to scale, they are looking for a senior technical leader who can help shape architecture, solve complex engineering challenges, and drive engineering excellence across the organisation.
This is a fully remote opportunity across the UK, with an expectation to attend the London office approximately 2–3 times per quarter for collaboration, planning, and team events.
The Role
As a Staff Engineer, you will play a key role in shaping the technical direction of the platform, working across engineering teams to build reliable, scalable, and high-throughput systems. You will tackle complex engineering challenges around performance, distributed systems, and scalability while helping establish best practices across the organisation. This is an opportunity to have significant technical influence within a highly successful SaaS business operating at scale.
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Key responsibilities include:
- Designing and architecting highly scalable distributed systems
- Building and optimising high-throughput services using Golang
- Driving technical strategy and architectural decisions across engineering teams
- Solving complex challenges around scalability, reliability, and performance
- Mentoring engineers and raising technical standards across the organisation
- Collaborating with engineering leadership to shape the future direction of the platform
The Package
- Salary up to £180,000
- 15% annual bonus
- VSOPs (Virtual Stock Options)
- Fully remote working across the UK
- London office visits approximately 2–3 times per quarter
- Opportunity to join a profitable unicorn and recognised market leader
- High-impact role with significant technical ownership
- Work on large-scale systems serving enterprise customers
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What They're Looking For
- Extensive experience building large-scale, distributed systems
- Strong commercial experience with Golang
- Proven experience working with high-throughput, scalable platforms
- Experience operating at Staff Engineer, Principal Engineer, or equivalent level
- Strong understanding of system design, architecture, and reliability engineering
- Experience within B2B SaaS, enterprise software, or similarly complex technology environments
This is an excellent opportunity for a senior engineer who wants to work on genuinely challenging technical problems, influence architecture at scale, and join one of the UK's most successful B2B SaaS companies.
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