Senior Full Stack Developer

Why this job might have caught your eye 
You’re an experienced developer who loves building products that make an impact. You’re looking for a challenging role in a fast-growing FinTech company where you can shape scalable systems used by millions of users every day. You want to work in an environment where your technical expertise and creative ideas truly make a difference. 
Does this sound like you? Then read on — you and this position at Billink might be the perfect match. 

Who we are 

Billink has been among the top 20 fastest-growing FinTech companies in the Netherlands for several years. With over 3 million consumers and thousands of online merchants using our payment solutions, we’re a well-established player in the “buy now, pay later” space. 
Our mission is to make payments easier, safer, and smarter — for both consumers and merchants. To further strengthen our growth and innovation, we’re expanding our development team with a Senior Full Stack Developer. 

What you’ll do as a Senior Full Stack Developer at Billink 

• Design, build, and maintain scalable web applications and APIs 

• Work across both frontend (React, Vue, or similar) and backend (Node.js, Python, or PHP/Symphony) 

• Integrate with external systems and partners (payment providers, identity services, fraud detection, and data platforms) 

• Collaborate with Product Owners, UX designers, and DevOps engineers to bring features from concept to production 

• Contribute to architectural decisions, security, performance, and code quality 

• Write automated tests and implement CI/CD pipelines 

• Review code, mentor junior developers, and help define our technical standards 

• Troubleshoot complex issues and continuously improve our systems and processes 

What we expect from you 

• A completed Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent experience 

• At least 5 years of experience as a Full Stack Developer 

• Proficiency with modern frontend frameworks (React, Vue, or Angular) and backend technologies (Node.js, PHP/Symphony, Python, or Java) 

• Strong understanding of RESTful APIs, JSON, and modern web standards 

• Experience with databases (MySQL, PostgreSQL, MongoDB, or similar) 

• Familiarity with containerization (Docker, Kubernetes) and CI/CD principles 

• Experience with cloud platforms (AWS, GCP, or Azure) is a plus 

• A proactive mindset, critical thinking, and passion for clean, maintainable code 

• Excellent communication skills in English (Dutch is a plus) 

• Ability to provide a Certificate of Conduct (VOG) 

Bonus points if you have experience with: 

• Payment or FinTech systems 

• Security and compliance frameworks (ISO27001, GDPR) 

• Monitoring, logging, and performance optimization 

• Event-driven architectures or microservices 

What we offer 

• A challenging position at one of the fastest-growing FinTech companies in the Netherlands 

• A competitive salary based on your experience and expertise 

• 25 vacation days per year (full-time) 

• A company laptop 

• Plenty of opportunities for personal development and professional growth 

• An open, informal, and collaborative company culture 

• Regular team events and our legendary Friday drinks 

• A work environment where your code has a real impact on millions of users every day 

What makes Billink unique 

At Billink, you can truly be yourself. We work with short communication lines, open collaboration, and shared ownership of our products. Developers are directly involved in shaping, building, and improving our services — from concept to production. 
We work hard, innovate constantly, and make sure to have fun along the way. 

Excited to join us? 
Apply now using the link! 
You can address your application to Ahmad Damirchiloo.