Full Stack AI Engineer
At a glance
Mid-level AI Engineering role at ascendingai. Amsterdam · full-time.
Pay not stated AI Engineering salary
aimlroles summary, based on the employer's posting.
What you'll do
- Build and ship software across backend systems, user interfaces and mobile when the product calls for it
- Work directly with founders and product and engineering teammates to turn ideas into working products
- Prototype quickly, release usable versions and improve them through hands-on testing
- Tackle technical challenges involving retrieval, context handling, model evaluation, AI agents, security and DevOps
- Spot user experience friction in your own software and make fixes without waiting for direction
What you bring
- At least five years of software engineering experience spanning the full stack
- Fluent English and the ability to work across low-level systems, frontend and mobile as needed
- Experience with distributed systems and cloud tools such as Docker, Kubernetes or AWS
- A record of adapting to small teams, changing priorities and rapid development cycles
Who this fits
This role suits a hands-on engineer who enjoys broad technical work, fast iteration and taking responsibility for products in use. You’ll work with founders and a small product-engineering team, and are expected to contribute to architecture and mentor junior engineers. The role is based in Amsterdam with a hybrid option; relocation support to Amsterdam is available.
From the employer
We're looking for a builder who can own and ship across the entire stack, from low-level systems and backend plumbing to polished UIs and whatever wild thing we need next (mobile? embedded? lets go!). You'll work shoulder-to-shoulder with our integrated product and tech teams to build something that actually changes how people live with AI.
If you're the kind of engineer who prototypes on weekends, ships MVPs that aren't perfect but work, and gets a rush from seeing your code in users' hands the next day, this is your playground. We only want top-tier people with an entrepreneurial streak who thrive when projects are on fire (in a good way) in a world that can shift overnight.
Why we exist
AI is everywhere, shaping how we live and work. We believe in AI that helps 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 and 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 what matters most.
What we’re building
Agents will be rapidly replacing apps on the consumer level. We are starting with building agents that allow users to use AI in a way that strengthens their choice and autonomy. We are also building more sophisticated tools that allow people to control the AI systems in their life. Along the way we are encountering lots of challenges, ranging from everything RAG and context engineering, dynamic model evaluation, agentic interaction, cyber and DevOps related.
Remuneration
The remuneration for this position is highly competitive.
The role
We're looking for a senior Full-Stack Engineer who can own and ship across the entire computing stack, from low-level systems to polished user interfaces. You'll work directly with the founders and a lean product-tech team to build products that genuinely matter.
We only consider top-tier candidates with an entrepreneurial mindset who thrive in demanding, fast-moving environments. If you're the kind of engineer who ships first and asks questions while iterating, this role is for you.
What we’re looking for
We're looking for a great generalist who can specialize when needed and doesn't find anything boring. Our current stack is Rust, Python, and TypeScript, but if the job requires building an iOS app from scratch tomorrow, that should excite you, not scare you.
5+ years of software engineering experience across the full stack
Full-stack versatility: comfortable moving from low-level systems to frontend to mobile, across whatever the problem demands. Strong theoretical and practical foundations matter more than familiarity with any specific language.
Outcome orientation: you care about shipping and delivery, not hours logged. You define success by what's working in production
Startup adaptability: experienced in small teams with shifting priorities and rapid iteration cycles
Product ownership mindset: you use and test your own code, identify UX friction, and fix it without being asked
Analytical autonomy: ability to independently identify and define technical problems before jumping to solutions
Continuous learning: demonstrated capacity to quickly master new technologies, languages, and frameworks as required
Experience with distributed systems and cloud-native tooling such as Docker, Kubernetes, Vercel, and AWS
Strong communication skills; able to collaborate with product, founders, and other engineers in a fast-paced environment
Able to mentor junior engineers and contribute to architecture decisions
Critical thinking, low ego, collaborative mindset, ready to roll up your sleeves
Fluent English required
How we hire
We keep the process lean and respect your time:
HR call (30 min)
Technical interview with senior and founding engineers (45 to 50 min)
Founder interview (45 to 60 min)
Take-home assignment
Assignment Presentation (60 min)
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 Amsterdam based but offer a hybrid option and relocation support to Amsterdam if applicable. 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.