Founding Software Engineer – Tax OS (AI-Driven) – Remote

Company: Fiskl.AI — The accounting intelligence platform.
Apply for the Founding Software Engineer – Tax OS (AI-Driven) – Remote
Location: London
Job Description:

Fiskl.AI — The accounting intelligence platform. Fiskl.AI is building taxOS, a category-defining tax product, with a single senior engineer who can deliver what previously needed a team.

You own architecture, substrate choices, CI/CD, observability, and security posture in a modern web stack. The role emphasizes production experience with frontier LLMs, agentic orchestration, graph/event-based data modelling, and strong Python or TypeScript skills, with end-to-end ownership of backend, data

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Posted: August 13th, 2026