Back-end Developer (NL/EN)
#LI-DNI
Help build the systems that serve millions of customers
At Gomibo, we do almost everything in-house—from payments and logistics to warehousing and our product catalog. Our backend systems make all of that possible. As a Junior Backend Engineer (Software Engineer I), you'll be writing production code from the start—working on real features, fixing bugs, and improving the systems that power our platform in over 30 European countries.
You'll contribute independently to well-scoped tasks while developing a deeper understanding of our architecture and tooling. Experienced teammates are there to support you, but we expect you to take initiative, write reliable code, and ask smart questions when things get tricky.
Nederlands | English
Our tech & Worklow
Languages: PHP, TypeScript
Datastores: MariaDB, Postgres, Redis, ElasticSearch
Messaging: RabbitMQInfra & tooling: Docker, Kubernetes, Helm, Flux, GitLab (CI/CD), Sentry, Graylog, Grafana, Prometheus, Loki
Frameworks & libraries: Laravel, ActiveRecord, GraphQL, Composer
IDE: PhpStorm
Workflow: Agile, daily standups, code reviews, open feedback culture
We work in focused teams—usually 5-6 engineers, a product manager, and a designer. You'll have ownership over your work and plenty of support when needed.
What you'll do
You'll work closely with frontend engineers, product managers, and occasionally a product designer. Together, you'll build and maintain systems that are central to how we run the business.
Some of the things you might work on:
Write backend features in PHP that power our core processes
Improve performance of queries and endpoints
Fix bugs, improve logging, and handle edge cases gracefully
Refactor code to improve clarity and maintainability
Review code from others and participate in technical discussions
Pair with teammates to learn new tools and work through difficult issues
Use Docker, GitLab, and Kubernetes in your daily workflow
What do we offer?
Next to a good salary, special Belsimpel Benefits, a beneficial pension plan and 25 vacation days a year, we also offer:
Growth
A clear path to level up your skills and responsibilities. You'll be paired with a mentor to support your development and learning goals.
Hybrid work
You'll work from our Groningen office throughout your onboarding. After that, you can work remotely up to 2 days per week
Tools
New laptop with premium hardware
Culture
A team where the best idea wins — not the person with the most experience. We value pragmatic choices, clean code, and continuous improvement.
What we are looking for
You've already built backend systems—on your own, in a previous job, or as part of a serious project. You don't need to know everything yet, but you should be confident writing backend code, debugging issues, and working in a team.
We'd love to see that you:
Have solid experience with real-world OOP production code
Understand SQL and can write efficient, readable queries
Are familiar with backend concepts like caching, databasing and APIs
Know your way around Git and the command line
Care about writing clear, maintainable code
Work well with others and communicate clearly—especially when something's unclear
If you have any questions regarding this vacancy, you can always contact our Talent & Recruitment Specialists. They are available on business days between 9:00 and 17:30 at the phone number 050-2113856. You can also send an email to werken@belsimpel.nl.
Do you want to know what the application process looks like? Click here.
Gomibo Benefits
Will you be there soon? And only if you want to, because if you don't like it, that's fine too. At Gomibo, everyone can be themselves.
