
Back-end Developer
Key Skills
Job Description
What you'll do
You'll join our Product team and own features end to end, from an idea to running in production.
- Build APIs, data models and integrations in Kotlin
- Help build AI features that control building systems more intelligently
- Work with our Data team to connect new data sources, so Healthy Workers is the single source of truth for all building and customer data
- Fix bugs and keep production healthy
- Review other people's code and get yours reviewed, always within one working day
- Learn our domain, including SkySpark, our building analytics platform
What your week roughly looks like:
~60% building: APIs, data models, integrations and AI features
~20% maintenance, devops and infra: bugs, monitoring, CI/CD and infrastructure
~10% code reviews and security (pentests and ISO)
~10% stand-ups, refinement, sprint planning and retros
Our stack
Kotlin, Micronaut, MySQL, BigQuery, Docker, Kubernetes, GitLab CI, Terraform, Google Cloud Platform and SkySpark. We plan in Linear.
Coming from Java? Perfect! Most of Kotlin will feel familiar quickly, and you'll learn the rest from colleagues who write it every day.
What you bring
Must-haves:
- A few years of experience as a back-end developer with Java or Kotlin
- Solid SQL skills, and you've built REST APIs that run in production
- Experience with Docker and CI/CD. If you don't know Kubernetes yet, you'll learn it here
- You're curious and keep improving yourself
- You can explain technical choices clearly to colleagues in Product, Data and Technical Customer Success
- You are fluent in English and live in the Netherlands
Nice to have:
- Experience with Terraform, GitLab CI or Google Cloud Platform
- Knowledge of C#
- Experience in a small product team at a scale-up
- An interest in building, energy or sensor data
What you get
- A salary that matches your experience. We'll discuss it openly in the first conversation
- A SAR plan (stock appreciation rights), so you share in the growth of Healthy Workers
- 30 days of paid holiday
- A learning and conference budget
- Commuting allowance
- No on-call
- Direct access to our Founders Jonatan and Guus
- Please note: we can't offer visa sponsorship or relocation support
The process
From first conversation to decision takes 2 weeks at most. After every step, you'll hear back from us the next day. No weeks of silence.
Sound like your next step?
Apply via the button below or drop me a message. Your CV or just your LinkedIn profile is enough, no cover letter needed. Want to chat first to see if it's a fit? Let's grab a coffee in Amsterdam or have a quick 15-minute call. Maarten Wolters [email protected] or +31 6 13392042.
Core Responsibilities
You will own features end-to-end, from ideation to production, while building APIs, data models, and integrations. You will also collaborate with the Data team to connect new data sources and maintain production health through bug fixes and code reviews.
Requirements
Candidates must have a few years of experience as a back-end developer with Java or Kotlin and solid SQL skills. You must be fluent in English, live in the Netherlands, and have experience with Docker and CI/CD.
Benefits
- Stock appreciation rights
- 30 days of paid holiday
- Learning and conference budget
- Commuting allowance
About Healthy Workers
Industry: Software Development
Company size: 11-50 employees
The Healthy Workers platform for Building Analytics & ESG Performance provides a solid foundation to make your portfolio smart, sustainable, and healthy. Because a successful transformation of real estate starts with having the right insights, at the right time, to make the right decisions. We make technology and data your building’s most valuable asset. #EveryBuildingHealthy