Backend Software Engineer, Golang - London
About this role
You build backend systems that stay up when things get ugly.You care about correctness, performance, and clarity over cleverness.You want your code to power decisions involving real money.If you have only worked on internal tools or low-impact services, this is not the role. The Role, In Plain English You will build the backend systems that power Reflexivity’s AI-driven investment platform.This role exists because scale, data complexity, and latency matter deeply in finance.You will work closely with AI and product teams to ship production-grade systems. What You’ll Be Responsible For Build and maintain Golang services that power core product workflows Design APIs and data pipelines used by AI and reasoning systems Improve system performance, reliability, and observability Review and challenge designs to keep systems simple and scalable Debug production issues with speed and discipline What “Good” Looks Like in This Role After 3 months:You ship production code confidently and understand system trade-offs. After 6 months:You own critical services and improve their performance or reliability. After 12 months:You influence architecture decisions and mentor other engineers.
What this role is, and what else it is called
Employers in London advertise this kind of work as Software Engineer, Senior Software Engineer, Web Developer and Full Stack Developer too, so it is worth searching more than one wording. It is a mid-level Software Engineering role in London, advertised without a stated working pattern, which is worth asking about.
How this role compares to the market
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Technologies mentioned
Detected on Reflexivity's careers page. ProdReady Recruitment lists this vacancy as an aggregator and is not the employer; applications go to the employer's own site. More IT jobs in London.