Senior Software Engineer (£80k–£100k + Equity) at Humaans

10 Days Old

Job Title Senior Software Engineer (Full Stack) Location London, UK Job Description Join a high-performance team building Athena, an agentic AI layer redefining HR infrastructure. You will own features end-to-end across a modern TypeScript stack, moving beyond simple data management into intelligent orchestration. Working directly with the founders, you’ll solve complex problems for global customers like Poolside and Quantexa in a fast-scaling environment. Why this role is remarkable
Work at the forefront of the AI transition in HR tech, building a differentiated platform backed by $20M from the founders of Slack, Figma, and Shopify. High‑leverage environment where engineers aren't just handed specs; you'll partner with the CEO and Head of Engineering to shape product strategy and technical architecture. Exceptional engineering culture with a 5‑year equity exercise window, top‑tier private healthcare, and a small, elite team that prioritizes quality and craftsmanship.
What you will do
Develop and scale end‑to‑end features using TypeScript, React, Node.js, and Postgres, deployed via Kubernetes on Google Cloud Platform. Architect and expand a public REST API and real‑time WebSocket infrastructure to support a growing marketplace of third‑party integrations. Collaborate deeply with product and design teams to translate complex workforce data models into reliable, AI‑driven automation workflows for global enterprises.
The ideal candidate
Extensive industry experience in full‑stack SaaS development with deep proficiency in Node.js and a strong appreciation for TypeScript. Proven track record of taking ownership of vague product problems and driving them to high‑quality, customer‑ready releases in a fast‑paced startup. Strong product sense and design craftsmanship, with the ability to balance technical excellence with pragmatic business trade‑offs and user impact.
Next steps
Step 1. Visit our website. Step 2. Click ‘Talk to Jack’. Step 3. Talk to Jack so he can understand your experience and ambitions. Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role. Step 5. If Jill thinks you’re a great fit and her client wants to meet you, they will make the introduction. Step 6. If not, Jack will find you excellent alternatives. All for free.
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Location:
Greater London
Job Type:
FullTime

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