Mid/Senior Full stack developer AI NEXT SENZ

• A great role for 32-40 hours per week

• Salary: € 3,500 - € 5,500 gross per month, depending on education and experience for full-time employment;

• Variable compensation (10% reserve, bonus based on achieved KPIs);

• 8% holiday allowance, paid in May;

• Lease car or NS Business Card;

• Indefinite contract with a 2-month probationary period;

• Pension scheme with ASR;

• 25 vacation days, with the possibility to purchase extra days;

• Personal training budget and opportunities for training and certifications;

• Hybrid working as far as the results allow (Zeist / home / client location);

• Growth opportunities towards a senior role;

• The chance to help build a fast-growing, data-driven organization from the start.

📍 Utrecht (hybrid) | 🕐 Min. 4 years experience | 🎓 HBO / WO | 🗣 Dutch required

Help build smart, data-driven solutions at a fast-growing startup

At NextSenz, we combine data-driven AI solutions and scalable data platforms with consultancy. Do you want to get to work as our first Frontend / Full Stack developer to set up our frontend infrastructure? We are looking for someone who loves working hands-on with technology, enjoys teamwork, and always thinks about the impact of his or her work. As a Frontend / Full Stack Developer AI, you will become part of a small, ambitious team at our location in Zeist. You will work closely with our Technical, Data & AI Lead and consultants, and contribute directly to the technical proposition of Next Senz.

You will take on a broad technical role: from building user-friendly frontends to developing full stack applications and integrating AI components (machine learning, gen AI) into our solutions. Specifically, you are responsible for:

• Designing and building scalable frontend and full stack applications;

• Integrating AI and data models into customer-oriented applications;

• Thinking along about architecture, code quality, and technical scalability;

• Collaborating with the AI Lead and consultants on client projects;

• Contributing to the further development of our own products and data platforms;

• Actively contributing to the technical growth of the team.

You are a curious, pragmatic developer with a broad technical foundation. You enjoy working in an environment where you can switch gears quickly, learn a lot, and make decisions independently. We are looking for someone who masters both the frontend and the broader stack and has an affinity for AI applications.

• Our core values of courage, learning, leadership, and fun really suit you; 

• Passion for building solutions that truly work and have impact; 

• You are customer- and result-oriented and strive for maximum quality; 

• You are continuously working on your own development and are open to feedback;