Senior Software Engineer (Full Stack)

About the role

ABOUT US

Humaans is building the next generation of infrastructure for the workplace; software designed for companies that are scaling fast, operating globally, and pushing into new boundaries.

What started as a system of record has evolved into a broader platform for operating people globally. With Athena, our agentic AI layer, Humaans moves beyond data management into intelligent orchestration, connecting workflows across HR, IT, Finance, and Operations so organisations can act faster and with greater confidence, redefining how work gets done.

We work with ambitious teams across Europe and the US, from AI-native companies like Lovable, Poolside, Fyxer AI, and Tandem Health, to established, high-growth organisations scaling internationally and through acquisition, including Quantexa, Sellpy, Manychat, Gigs, Croud, and Threecolts. These teams don’t buy software for features,they buy leverage. The ability to run faster, cleaner, and with more control as complexity compounds.

To date, we’ve raised $20m in venture funding from some of the most respected founders, operators, and funds in technology: Lachy Groom (Physical Intelligence), Stewart Butterfield (Slack), Tobias Lütke (Shopify), Dylan Field (Figma), Jeff Weiner (LinkedIn), Claire Johnson (Stripe), Oliver Jay (OpenAI), Jay Simmons (Bond) as well as Y Combinator, Moonfire, Frontline Ventures, Pathlight Ventures, and Exor.

If you have massive ambition and want to work on a hard problem, with a small team that moves fast, at a moment when the category is genuinely up for grabs - this is it.

THE ROLE

We’re looking for a Senior Software Engineer to help us build and evolve Humaans as we continue to scale.

We obsess over the details and quality of our user-facing experiences and the engineering behind them. At the same time, we move fast by creating focus, making pragmatic decisions and investing in high-quality foundations that allow us to keep moving quickly as the product grows.

This is an end-to-end engineering role. You’ll work across the stack, from shaping what we build with Product and Design through to implementation, release and iteration. On any given day you might be building a new customer-facing feature, improving our infrastructure, expanding an integration or helping solve a problem for a customer.

You’ll have meaningful ownership over both the product and the technical decisions behind it, with the opportunity to contribute to how our architecture evolves as Humaans grows.

WHAT YOU’LL DO

- Help shape product features from early definition through to implementation, release and iteration

- Build end-to-end customer-facing features across our frontend and backend

- Write backend TypeScript across Node, Postgres, Redis and Kubernetes

- Build frontend experiences using TypeScript and React

- Fix bugs, improve infrastructure and strengthen the foundations that allow us to move quickly without compromising quality