full-stack software developer

• Design, develop, and maintain RESTful APIs and microservices;
• Contribute to the development of our distributed services using Django and FastAPI frameworks, as well as the frontends using React;
• Use Git for version control and maintain effective branching strategies;
• Write unit tests and maintain code quality through continuous integration;
• Ensure application scalability, security, and performance;
• Deploy and manage applications in Kubernetes environments.

Our tech stack

• Backend: Python 3.13+, Django, FastAPI
• Frontend: React, TypeScript
• DevOps: Kubernetes, Docker
• CI/CD: Bitbucket, ArgoCD
• Data: PostgreSQL, Kafka

• Minimal 3 years of professional working experience developing software applications;
• Excellent English communication skills, both written and verbal (Dutch would be a plus);
• Good understanding of modern frontend & backend architecture principles and design practices;
• Strong expertise in Python & JavaScript/TypeScript development;
• Experience working with modern frontend frameworks (React, Vue, Angular);
• Experience with Django and FastAPI frameworks;
• Familiarity with Docker, Kubernetes, and CI/CD environments;
• Experience working with relational databases (PostgreSQL);
• You are up to date with the latest developments in your field;
• You like solving puzzles yourself and understand that AI can be of help, but you're ultimately responsible for the quality of your own work.

• Full-time or part-time (min 32 hours) appointment initially for 1 year with the possibility of permanent employment;
• A starting salary between €3.607 and €5.410 gross at 40 hours;
• 8% holiday pay, 30 holiday days (at full-time);
• A bonus that depends on your and our results;
• A good pension scheme with the TNO Pension Fund;
• A training budget;
• MacBook Pro, PyCharm & JetBrains AI Pro license;
• Commuting allowance, full reimbursement of business public transport travel costs (NS business card), and after a year, the possibility of participating in a bicycle leasing plan;
• A 5-day working week, in which you will work hybrid and spend approximately 2 days at our office in Amstelveen in the Netherlands;
• A team that believes in our mission and would like to hear your input;
• All facilities to do your job well, including a budget for working from home.

For 20 years, Stoffenmanager® has been the trusted software solution for working safely and healthily with hazardous substances. With over 50,000 accounts issued and a continuously growing user base, we work daily to provide effective solutions for chemical and biological risks in the workplace. Driven by the belief that a sound substances policy can be simple and sustainable, we collaborate with our clients to achieve our mission: a safe and healthy workplace for everyone! Would you like to help create a safer working environment and make a real difference to people, organisations and society? If so, you might just be the person we're looking for!