About Delta Labs
Delta Labs is a University of Zurich start-up at the forefront of AI innovation. Our team combines scientific depth (PhDs in marketing, technology, and data science) with entrepreneurial experience (previous startup exits). We are pioneering
AI Twins
: intelligent persona simulations that mirror real consumer behavior. These AI-native insights are transforming how businesses understand their customers, empowering them to make faster, more precise, and more scalable decisions.
Why Join Now
We are in a rapid growth phase, building the technical backbone of an entirely new category in AI-driven customer intelligence. As one of our early senior engineering hires, you'll have an outsized impact — not only on our product but also on the technical direction and culture of the team.
Your Role
As our Senior Full-Stack Developer, you'll work closely with the founders and core team to design, build, and scale our platform. This is a hands-on role, but one where you'll also help set standards, influence architecture, and shape how we grow as a team.
What You'll Do
* Build and scale features across the
frontend and backend
, ensuring usability, security, and performance.
* Take ownership of key architecture decisions and contribute to the long-term scalability of the platform.
* Develop and optimize
data pipelines
for structured and unstructured data.
* Collaborate with data scientists, designers, and product leads to translate ideas into production-ready solutions.
* Help establish engineering best practices and support future team members as we expand.
* Stay ahead of emerging technologies and evaluate their potential for our product.
What You Bring
* Proven experience building
modern web applications
end-to-end.
* Strong proficiency in
React / NextJS
and backend development (NodeJS, PostgreSQL or similar).
* Solid understanding of
software architecture, APIs, and data systems
.
* Hands-on experience with cloud services (Azure, AWS, or similar).
* Curiosity and excitement for AI/ML applications (direct experience is a plus).
* Excellent communication skills, self-organization, and a proactive, can-do attitude.
(English fluency required; German is a plus.)
Our Culture & Values
* Remote-first, global mindset
– flexible collaboration across time zones.
* Hands-on and interdisciplinary
– every team member shapes product, tech, and culture.
* Curiosity and excellence
– we thrive on continuous learning.
* Vision-led
– we are building the marketing AI engine of the future.
Our Current Stack
* Infrastructure:
Vercel, Microsoft Azure
* AI/ML:
OpenAI, Google Gemini AI
* Frontend:
NextJS + React / Typescript, Shadcn + Tailwind CSS
* Backend:
NodeJS / Typescript, PostgreSQL
(This is our current foundation — and you'll help decide where we go next.)
If you are excited about joining a small, ambitious team early on and helping to build the technical foundation of a company redefining consumer intelligence, we'd love to talk.