Full-Stack AI Engineer (senior)

Why we exist

AI is everywhere, shaping how we live and work. We believe it should help people stay in control of their choices, build real connections, and pursue long‑term goals. Autonomy, relationships, and purpose are the foundations of a meaningful life. Ascending AI builds tools that strengthen all three. We deeply believe in this mission and invested €5m of our own capital to stay initially independent and focused on building what matters most.

What we’re building

We’re starting with a product that helps people map their relationships and spot communication patterns, immediate value that makes daily life clearer and more intentional. This is also the foundation for a broader suite of tools designed to protect autonomy, strengthen connections, and support long-term goals.

The role

We’re currently looking for experienced senior Machine Learning & Agentic AI Engineers. You will play a critical role in designing, developing, and optimising our innovative products.

We will only consider top-tier candidates with an entrepreneurial mindset and those who thrive in demanding environments.

Job requirements

For all our candidates, we expect the following requirements:

• A minimum of 5+ years of software engineering experience

• Ability to ship complex products independently or in small teams

• Strong programming skills in multiple programming languages and willingness to quickly learn new ones whenever required

• When using libraries from open source projects, have the ability to debug, improve and contribute to these projects

• Experience with distributed systems and cloud-native tooling such as (at the moment) Docker, Kubernetes, Vercel, AWS

• Interact with product, management and other devs in a fast-paced, iterative product development

• Critical thinking, problem solving, high autonomy, low ego, collaborative mindset. Be ready to roll-up-your-sleeves

• Already doing interesting projects with AI, machine learning, evaluations, complex agentic setups etc. Ideally familiar with deploying LLMs on own hardware or instances

• Able to mentor junior engineers and contribute to architecture decisions

• Fluent English language skills are required

Nice to haves

We are mainly looking for super smart people that can hit any ground running and contribute. Still, we consider the following experience as nice to have:

Nice to have 1 – Agentic Deployment

• Experience building and deploying LLM-powered tools (assistants, copilots, agents)

• UX-minded: build tools humans want to use

Nice to have 2 – Evaluations and ML

• Experience designing and implementing safety and performance evaluations in generative AI.

• Experience with fine-tuning, synthetic data production, prompt engineering, and model comparisons
  

Why join us now?

You work directly with the founders and a small product-tech team to shape a company built to make AI serve humanity, not the other way around. We’re remote-friendly (CET ±3h) and offer relocation support to Amsterdam if you want to join us onsite. In addition to the salary, there is the opportunity to participate in our success through stock based rewards. This is your chance to build fast, design with purpose, and leave a real mark on how humans and AI coexist.