Medior Backend Engineer (Back-end Software Engineer II)

Tech stack: PHP, Laravel, TypeScript, GraphQL, MariaDB, Redis, RabbitMQ, Docker, Kubernetes, GitLab CI/CD, Sentry, Elastic

Fulltime | 32 - 40h/w | Head Office Groningen

*You are able to work at the office in Groningen during your entire onboarding period. After that, we have a remote working policy of a maximum of 2 days per week. More days are possible in consultation.

Build scalable systems that power our platform across Europe

At Gomibo, we build nearly everything in-house—from payments and logistics to repair workflows and customer communication. As a Medior Backend Engineer (Software Engineer II), you'll work on the backbone of these systems. You'll take ownership of backend features and improvements, solve real-world performance issues, and help shape how we build reliable services. Think 555 phones × 473 contracts × 65 bundles — there's a lot of logic behind the scenes to keep everything working smoothly.

You'll work closely with frontend engineers, product managers, and occasionally a product designer. You're trusted to make technical decisions within your scope, write clean and maintainable code, and contribute to the team's planning and direction.

Our tech & workflow

• Languages: PHP, TypeScript
• Datastores: MariaDB, Postgres, Redis, ElasticSearch
• Messaging: RabbitMQ
• Infra & 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

You'll work in a small, focused team — usually 5-6 engineers, one PM, and one designer. Teams own their systems end-to-end and collaborate across domains when needed.

What do you do as a Back-end Software Engineer II?

You've built backend systems that are running in production and are ready to take the next step. You can design features from scratch, think in edge cases, and help others reason about trade-offs. You're collaborative, clear in your communication, and care about writing robust code.

 We expect:

• At least 2 years of experience writing backend code
• Strong understanding of SQL and relational databases (e.g., MariaDB, Postgres)
• Familiarity with performance profiling, caching, and optimizing backend flows
• Experience working with Git, Docker, and CI/CD pipelines
• Experience with GraphQL is a plus
• Basic experience with distributed systems and messaging (e.g., RabbitMQ) is a plus
• Ability to scope and estimate tasks in collaboration with others
• Pragmatic approach to legacy systems and technical debt

What do we offer?

Are you joining our team? Then we’ll not only make sure you have a great job, but also attractive employment benefits. Take a look at our full employment conditions here.

In addition to a good salary, a favorable pension scheme, and 25 vacation days per year (option to buy 5 more), you can also count on:

Terms of employment

• Monthly vacation allowance so you don’t have to wait for it.
• Lots of discounts at local businesses.
• Friends & Family vouchers.

Personal growth

• Training programs, one-on-one coaching, and peer learning sessions.
• The opportunity to take on more and more responsibility.

Culture & activities

• Plenty of (optional) social activities such as board game and video game nights, chess, bouldering, and Friday afternoon get-togethers.

Tools & hybrid working

• A good laptop
• Flexible starting times (between 8:00 and 9:00).
• Hybrid working: up to two days working from home.

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.