Job description

NTT DATA is looking for a freelance Full Stack Engineer (Java + React) for an international client in Amsterdam.

Amsterdam, Netherlands (Hybrid)
6-Month Contract (Extension Possible)
Onsite 2-3 Days per Week
Start Date: ASAP

About the Opportunity

We're looking for experienced Full Stack Engineers to join a large-scale technology program for a leading digital business. This is a freelance contract opportunity where you'll contribute to customer-facing products used by a large international user base.

You'll work in modern engineering teams building scalable applications using Java, Spring Boot, microservices, cloud technologies, and React on the frontend. While this is a Full Stack role, strong backend engineering capabilities are essential.

Your role:

Build and maintain scalable backend services using Java and Spring Boot
Develop modern frontend applications using React.js
Design and build APIs and microservices
Contribute to customer-facing features and platform improvements
Collaborate with Product, Engineering, and Architecture teams
Write clean, maintainable, and well-tested code
Participate in design discussions and technical decision-making
Support deployments, monitoring, and production operations
Contribute to continuous delivery and engineering best practices

Required Skills

Strong experience with Java and Spring Boot
Experience building microservices and distributed systems
Commercial React.js experience
Experience building customer-facing applications
Experience with SQL and/or NoSQL databases
Understanding of scalable architectures
Experience working in Agile environments
Strong communication skills
Ability to demonstrate measurable project impact

Nice to Have

Kafka or event-driven architectures
AWS
Docker
Kubernetes
GitLab CI/CD
Experience supporting high-traffic applications
FinTech, Payments, Banking, or regulated industry experience

What We're Looking For

We value engineers who can clearly demonstrate:

✅ Ownership of features from design through production

✅ Experience building scalable customer-facing platforms

✅ Business impact, such as:

Performance improvements
Reliability improvements
Platform scalability
Improved customer experience
Automation initiatives