Senior Backend .NET Developer

As a Senior Backend Developer at Vision Healthcare, you’ll join a focused team of four backend engineers. Your role goes far beyond writing code—you’ll shape the system architecture, anticipate scaling challenges, and help define the future of our backend platform.

We value technical expertise and fresh ideas, giving you both the freedom and the time to experiment with new frameworks, tools, and approaches that can make a real impact.

Your job in a nutshell:

Our backend team builds, maintains, and continuously improves

Microservices backend

—the core system that powers orders, invoices, customers, payments, subscriptions, and more. Coltan consists of microservices written in

.NET 8

, running on

Azure

, and deployed through

Azure DevOps pipelines

.

For service-to-service communication we use

NServiceBus

and

RabbitMQ

; data is stored in

SQL Server

and

ElasticSearch

. You’ll also work with

Adyen

for payments,

Commerce Tools

and various

Azure components

like Service Bus, Key Vault, etc.

Your responsibilities:

Write clean, high-quality, and maintainable code

Collaborate with the team to design solutions and solve problems

Contribute to architecture and system design

Ensure software quality through testing and reviews

What you’ll be working on:

Much of our backend is custom-built, but we’re actively moving functionality to SaaS solutions where it makes sense. For example, we’re migrating customer data from an event-sourced microservice into

CommerceTools

, a platform that manages customers, carts, products, discounts, and orders.

This migration involves moving millions of records, writing temporary support software, building new microservices, and solving plenty of technical challenges along the way. Projects like these give you the opportunity to make an impact while tackling real-world scaling and integration challenges.

Why it’s great to be a Backend Engineer at Vision Healthcare:

We keep our backend team small and efficient, so decisions are fast and improvements happen continuously. You’ll spend your time designing and building—not sitting in endless meetings.

Our minimal meeting culture and focus on shipping features means you’ll actually see your work in production and contribute directly to the evolution of our platform.

This is you:

You enjoy working across the full development cycle—designing, building, and deploying features end to end.

You have hands-on experience with

microservices, .NET 8, SQL and Azure

.

You thrive on solving complex technical challenges.

You’re fluent in English (Dutch is a plus).

You bring enough relevant experience to confidently call yourself a

Senior Backend Engineer

.

You currently live in the Netherlands.

This is what we offer you:

A competitive salary.

Hybrid working with flexibility for office and home.

26 paid vacation days

per year.

75% pension contribution

from us;

Great opportunities for personal learning \& development.

Monthly allowances:

€20 internet

+

€20 phone

.

Travel cost reimbursement for office days.

Unlimited access to

mental well-being support

via OpenUp.

Free daily lunch with a fully stocked kitchen.

Regular team events, parties, and Friday afternoon drinks.

Interested? Let’s go!

Apply with your CV and motivation letter via the button below.

We’ll start with a short introductory call with

Diederik Oostburg

.

If there’s a match, you can expect a maximum of

two interview rounds

.

Before the second interview, we’ll ask you to complete a small assignment.

🙌

About Us

Vision Healthcare (VHC)

is a fast-growing European company with a broad portfolio of direct-to-consumer brands. We manage a range of supplement, wellness, and beauty brands including

Flinndal

,

Purasana

,

Vitaminen op Recept

,

VitaminExpress

,

Bärbel Drexel

, and

Vitamaze

.

Our Haarlem office is the e-commerce engine behind these brands — and we’re growing fast. That’s why we’re looking for another talented developer to join our team.