Senior Java Software Engineer

Senior Backend Developer (Java / Distributed Systems)

Location: Amsterdam (Hybrid: 2–3 days on-site)

Type: Contract / Freelance

Rate: Up to €68 per hour

Start Date: Immediate / As soon as possible

About the Role:

We are seeking an experienced Senior Backend Developer to take ownership of high-scale, business-critical systems in Amsterdam. You will guide technical execution, build resilient microservices for customer-facing applications, and help shape architectural standards across distributed environments supporting over 10,000+ users.

Key Responsibilities:

• Architect, build, and scale high-performance Java microservices supporting large-scale, high-traffic user applications.
• Drive engineering best practices, code quality, and maintainability across the software development lifecycle.
• Mentor team members, collaborate with stakeholders, and streamline deployment and production operations.
• Demonstrate clear, measurable impact on project delivery and system reliability.

Requirements & Tech Stack:

• Core Skills: Strong, extensive background in Java, Spring Boot, and microservices architecture .
• Scale & Systems: Experience building and scaling large-scale applications (ideally supporting 10,000+ users) and distributed systems.
• Data & Messaging: Proficiency with SQL / NoSQL databases and Kafka .
• Cloud & DevOps: Hands-on experience with AWS, Kubernetes, Docker, and GitLab CI/CD .
• Domain Experience: FinTech or financial industry background is a strong plus.
• Soft Skills: Excellent communication, strong leadership mindset, and a proven track record of delivering high-impact technical solutions.

Please share your CV with me if you are interested!