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StackOne | london, United-Kingdom | Posted June 06, 2026
Position Overview
Requirements
- Proven experience as a full-stack engineer shipping user-facing, backend-heavy systems
- Expertise in TypeScript and solid experience with React; comfortable building clean UIs for complex backend capabilities
- Strong background designing and operating public APIs and multi-tenant systems
- Experience with distributed systems concepts: streams, queues, idempotency, consistency, and performance trade-offs
- Ability to think in systems (throughput, tail latency, failure modes) and explain trade-offs clearly
- Curiosity and pragmatism with LLMs/agents: know when they help, and how to guardrail/evaluate them
- Desire to work in a fast-paced startup, take ownership end-to-end, and bias toward shipping
- (Preferred) Experience publishing CLIs & SDKs (internal or open-source)
What the job involves
- We are looking for a Software Engineer with a strong background in AI prod...