Python Backend Developer – AI Scale-up - 105K + stock

Do you get energy from working in a start-up environment where every line of code has impact? Do you want to take real ownership of the core systems in a fast-growing AI platform — not just tickets handed down from above?

Here’s your chance to help scale a product that is changing how companies select and hire talent.

About the company

Our client is a rapidly growing HR-tech scale-up in Amsterdam, building an AI-driven selection engine that automates prescreening, assessments and scheduling. Backed by strong funding and trusted by European customers, they are scaling fast.

The setup is pure start-up mode: a small engineering team (4 people, soon 5+), no middle management, short lines, and a culture that thrives on drive, learning and speed. You’ll see the results of your work live within days — not months.

This is not the place for 9–5 routines. It’s the place for engineers who love building, experimenting and growing together in a team that takes pride in shipping.

What you’ll do

• Take ownership of the core backend services and APIs
• Make the platform scalable as customer usage keeps growing
• Build and maintain ATS integrations and assessment workflows
• Improve performance, reliability, testing and code quality
• Be a mentor and example for less experienced teammates
• Collaborate directly with founders, product and frontend engineers

What we’re looking for

• 5+ years of backend experience in Python OR Go / Elixir / Rust
• Strong track record building scalable systems and APIs
• Start-up mentality: high energy, learning mindset, no 9–5 attitude
• Strong product sense — you care about impact and user value

What you’ll get

• Salary: €80.000 – €105.000/year depending on experience
• Stock options
• A modern office in Amsterdam
• A high-ownership role where your voice matters
• The excitement and energy of a real scale-up journey

Who you are

• Experienced – you’ve seen multiple environments (start-up/scale-up)
• Language-flexible – fluent in Python or another modern backend stack (Go, Elixir, Rust)
• Mentor-minded – you lift others up while pushing standards higher
• Scale-up ready – you thrive in pace and uncertainty
• Passionate – you believe in product impact and enjoy seeing your work live fast

Important

We can only consider candidates already living in the Netherlands with a valid EU work permit. No visa sponsorship or relocation support.

Interested?

Want to join a scale-up where your code truly shapes the product?

Email D.gontha@haystackpeople.nl

Keywords: Python, Go, Elixir, Rust, Backend, APIs, SaaS, HR-Tech, Scale-up, ATS Integrations, Start-up Mindset, High Ownership, Amsterdam, €80–105K + stock