Backend Engineer
Confirmed on the employer's own hiring board on Oct 2, 2026. First seen by Alion on Jun 16, 2026.
At Harmoney, you'll work on a product trusted by organizations such as Belfius, Baloise, AG Insurance, and Swiss Life. More importantly, you'll join a team that's ambitious, supportive, and genuinely enjoys building great things together.
As a Backend Engineer, you'll design, build, and evolve the cloud-native services that power our platform. You'll work on complex engineering challenges, collaborate closely with Product and fellow engineers, and have the autonomy to shape scalable solutions from design through deployment.
Your impact
You'll play a key role in building the foundation of our platform.
From designing secure APIs and scalable backend services to improving performance and code quality, you'll help create software that thousands of professionals rely on every day. You'll also contribute to architectural decisions, code reviews, and AI-powered development workflows.
What you'll do
Design, build, and maintain scalable backend services using Java
Develop secure REST APIs and cloud-native features
Translate product requirements into clean, maintainable software
Design and optimise database models and SQL queries
Perform code reviews and contribute to engineering best practices
Collaborate closely with Product and Engineering to deliver high-quality features
Leverage AI tools to improve development speed, quality, and efficiency
Continuously improve the performance, scalability, and reliability of our platform
You'll thrive in this role if you...
Are fluent in English
Have 3+ years of experience building enterprise applications in Java
Have strong experience with relational databases and SQL
Know how to design and build secure REST APIs
Enjoy real ownership and autonomy from day one
Enjoy solving complex technical challenges and thinking about scalability
Are a collaborative engineer who enjoys sharing knowledge through code reviews
Communicate clearly and enjoy working closely with teammates
Nice to have
Fluency in Dutch is a plus
Experience with Quarkus or similar modern Java frameworks
Familiarity with frontend technologies such as Angular
Experience working with cloud-native architectures or distributed systems
Experience using AI tools to improve software development workflows
Why Harmoney?
A flat, down-to-earth culture with approachable leadership, real ownership, and plenty of room to make an impact
An intellectually challenging environment where you work with a modern tech stack and solve complex, real-world problems
Become part of a warm, inclusive, and energetic team that enjoys learning from each other
Great package: competitive salary + a wide range of benefits including company car/mobility budget, net allowance, pension plan, hospitalisation & group insurance, meal & eco vouchers, smartphone budget, phone subscription and 32 days of annual leave
Flexible remote working based on trust, open communication and client/company/team needs
Long-term freelance collaboration also possible
Interested?
Send us your details and a short introduction. We'd love to hear from you.
No recruitment agencies please.