Backend Engineer – Scale APIs & Services (Amsterdam)

bluumy labs B.V.; Amsterdam; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Modern Amsterdam office

Competitive compensation and benefits

Job summary

bluumy labs B.V. in Amsterdam is seeking a Backend Engineer (m/f/d) to build and scale the core platform powering its educational products. You will design robust backend services, APIs, and infrastructure to enable seamless user experiences and future growth.

The role requires 3+ years of backend experience, strong knowledge of SQL or NoSQL databases, cloud infrastructure, and security best practices. You will collaborate with Product and Frontend teams, write automated tests, and contribute to

Qualifications

• 3+ years of backend engineering experience.
• Strong experience with modern backend technologies.
• Experience building scalable APIs and distributed systems.
• Strong database knowledge (SQL and/or NoSQL).
• Experience with cloud infrastructure.
• Understanding of security best practices.
• Strong debugging and problem-solving skills.
• Fluent English communication skills.

Responsibilities

• Design, develop, and maintain scalable backend systems
• Build and optimize APIs and microservices
• Design efficient database structures and data models
• Ensure platform security, reliability, and performance
• Collaborate closely with Product and Frontend Engineering teams
• Monitor and improve system health and scalability
• Participate in architectural decisions
• Support deployment, observability, and infrastructure initiatives
• Write automated tests and maintain engineering quality standards

Skills

Backend engineering

APIs

Distributed systems

SQL/NoSQL databases

Cloud infrastructure

Security best practices

Debugging

English communication

Tools

Containerization

Event-driven architecture

Job description

bluumy labs B.V. in Amsterdam is seeking a Backend Engineer (m/f/d) to build and scale the core platform powering its educational products. You will design robust backend services, APIs, and infrastructure to enable seamless user experiences and future growth.

The role requires 3+ years of backend experience, strong knowledge of SQL or NoSQL databases, cloud infrastructure, and security best practices. You will collaborate with Product and Frontend teams, write automated tests, and contribute to