About the role
Salary: £75-90k Location: UK Remote, with minimal office travel required (1-2x per month) Ready to reshape one of the world’s largest industries? nPlan has built a unique AI platform that helps some of the largest construction companies better understand their projects, avoid delay risks, and improve the cost and delivery time of some of the most important infrastructure projects.
The role: You will work in a collaborative backend engineering team that owns the systems that power our platform. You will design, implement and build new capabilities that are performant, dependable, and extensible. What you’ll do: Spin your skills on the backend: Design, build and deploy new backend capabilities: our customers are always asking for more, and especially more sophisticated AI systems. Help us stay on the cutting edge. Lead technical delivery: propose designs, evaluate trade-offs, drive changes from design to deployment. Don’t be afraid to point out where we can and should be better. Improve operations: observability, incident response, performance, scaling, automation. We hate finding and dealing with bugs. You should too. Please mention the word ‘ crane’ in your application Our stack We hire people who are generally language and stack-agnostic. We just ask that you are highly motivated to learn Languages: Python, Go, Typescript APIs: GQL, gRPC, REST Databases: Postgresql, Vector DBs, BigQuery, blob storage Async: Vertex AI, GCP pub/sub Deployment: GCP, Kubernetes, ArgoCD, Github Actions Operations: Prometheus, Grafana, Sentry What we’re looking for We're building software that changes how the world plans and delivers infrastructure at scale. The problems are hard, the stakes are real, and the path isn't always clear - you're energised by that, not slowed down by it. Three-plus years of owning scalable, real-world systems. You know what breaks at 3am and why, and you've built things that don't. Kubernetes in a cloud environment is part of your toolkit we use at nPlan. You can take a blank page and design something reliable, testable, and scalable - not because you followed a framework, but because you understand the trade-offs well enough to make the right calls for the problem in front of you. Data modelling, indexing strategy, production-level migrations that don't wake anyone up - you treat the database as a first-class concern. You know what a slow query costs and you don't leave them lying around. You don't just write tests because you're supposed to. You write them because you've seen what happens when you don't. You'd raise the bar here, not just meet it. You understand attack surfaces and common vulnerabilities. If you've worked inside a SOC- or ISO-accredited company, that's a genuine plus - we take this seriously and you would too. Coding agents, LLMs, whatever gets the job done well and quickly is