Senior C# Developer

  • Rotterdam
  • Fulltime
  • Bachelor
Relocation possible
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Become a Developer at Coolblue and we’ll take care of your relocation from A to Z, including a language course for the whole family and a warm welcome. You’ll be part of our friend group with more than 40 nationalities from day 1. In addition to improving the systems we built ourselves, you also think about challenges that have a major impact on Coolblue and our customers. For example, optimizing the stock or offering the most accurate delivery times. For more information, check our relocation information page.

You'll build modern applications for Coolblue back’s office. We have a lot of friends, and they crave well-structured data and user-friendly, task-focused applications.

What is Coolblue?
What is Coolblue?
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Coolblue. It once started as a student company. Now, we're the most customer-centric company in The Netherlands and Belgium, with our own stores, customer service, delivery service, installation service, and repair service. Since our founding in 1999, we've had only one goal: to make customers happy. We give advice and we have an obsessive focus on customer satisfaction. With over 6.000 Coolbluers, we work hard to amaze our customers.

Apply now

Senior C# Developer

  • Fulltime
  • Rotterdam
  • Bachelor

What does a Senior C# Developer at Coolblue do?

You regularly participate in brainstorm sessions about user experience, data, and task flow with the UX Designer, Product Owner, and Data Scientists in your team. Besides that you will create disconnected, highly congruent, and testable code that can easily be maintained and is future-proof. Want to become Senior C# Developer at Coolblue? Read below if the job suits you

You enjoy doing this

  • Working with various types of data stores, such as Oracle or Dynamo/Cosmos.
  • Solving problems by using accepted best practices and principles, such as TDD/BDD, SOLID, and design patterns.
  • Coaching your medior colleagues.
  • Giving sprint demo's
  • Share knowledge during pair programming and constructively comment on pull requests.
  • Working on Github and like writing automated tests to ensure software quality yourself.

This calendar makes you happy

Week 26

  1. MonMonday
  2. TueTuesday
  3. WedWednesday
  4. ThuThursday
  5. FriFriday
    1. Daily stand-up

      Daily stand-up
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      Start with team. Short update about your tasks and progress

    2. Programmeren

      Programmeren
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      Focus on the assigned user stories to make sure our web application will run even smoother.

    3. Pair Programming

    4. Personal development conversation with Bruno

      Personal development conversation with Bruno
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      Discuss personal development progress with Teamlead

    5. Processing feedback from stakeholders on new feature

    1. Daily stand-up

    2. Write unit tests

      Write unit tests
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      Write tests. Are the conditions clear? High enough coverage? Check! Write that code.!

    3. Coding

      Coding
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      Focus on the assigned user stories to make sure our web application will run even smoother

    4. Teamlunch

      Teamlunch
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      Celebrating successes together.

    5. Catching up with Yuliya (Developer)

    1. Daily stand-up

    2. Go over code review comments

    3. Refinement

      Refinement
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      What will the upcoming sprint look like and who will do what.

    4. Follow AWS Pluralsight course

      Follow AWS Pluralsight course
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      Get even more insights on our cloud system

    5. Outdoor walk with Fernando

      Outdoor walk with Fernando
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      To catch up

    1. Daily stand-up

    2. Review submitted code

      Review submitted code
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      Did they follow our principles. Thanks to your explanation you gave them last time you see less errors in the pull request. Great!

    3. Sharing knowlegde with the team

      Sharing knowlegde with the team
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      Share all kinds of ideas with each other, so that you get a little better every day.

    4. (Digital) drinking coffee with your buddy

    5. Sit together with the junior developers

      Sit together with the junior developers
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      See if the comments you made in the pull request are clear and answer their questions.

    1. Daily stand-up

    2. Meeting with teamlead

      Meeting with teamlead
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      Discussing your personal development.

    3. Retrospective

      Retrospective
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      What went well last sprint? What could be better next sprint?

    4. Discuss current Architecture decisions with Team Lead

    5. Teamborrel

You recognize yourself in the following

  • You have more than 5 years of experience as a C# Developer.
  • You have experience with software architecture and building .NET applications.
  • You have experience with Web API or MVC in .NET Core.
  • Working with Scrum/Agile working is second nature to you.
  • Having experience with front-end development (React), Javascript, HTML5 and CSS is a plus.
  • You have experience with automating and implementing recurring tasks in a CI/CD system.

This is what you’re looking for in a job

  • Money.
  • Travel allowance and a retirement plan.
  • Relocation assistance: from A to Z. We will make sure it goes well and give full support. 
  • A flexible workplace. Work in the Netherlands where you like and meet your team a few times a month in our office in Rotterdam. (When the Covid-guidelines allow this)
  • Over 30 trainings in our Coolblue University to get a bit better every day.
  • 25 leave days. As long as you promise to come back.
  • A discount on all our products.
  • A picture-perfect office at a great location. You could crawl to work from Rotterdam Central Station. Though we recommend just walking for 2 minutes.
  • An extraordinarily good work environment with colleagues who make you happy, epic (digital) Coolblue parties, pubquizzing, and other activities.
  • At this moment we all work from home. Ofcourse we help you creating the best home-office possible. Including a desk chair, laptop and blue colored garlands.
  • Working together in an international environment with colleagues from the Netherlands, Belgium, Spain, Brazil, Mexico, and Italy, among others. 
  • Room for new initiatives and ideas. We’re always open to those, whether you’ve been with us for a week, a month, or a year.

  • How does Coolblue adhere to the 1.5-meter rule at work?

    We adhere to the recommendations and guidelines of RIVM and the government, of course. This means that all colleagues from the main office work from home as much as possible. The interviews for your application will also take place via video calls.

    We’d be happy to have you at the office on your first day. So we can drink a cup of coffee and get to know each other a little better. At an appropriate distance, of course.

  • Can I live outside the Netherlands and still work in the Tech department of Coolblue?

    No, it’s not possible to work from abroad as a Tech colleague. We like collaborating in a digital way, but over this last year we’ve seen that doing a retrospective, a pair-programming session, or grabbing a drink in real life is much more fun. That’s why we like everybody to be in the Rotterdam office at least 3-6 days a month on average. Together with your manager, you decide how often you and your team really meet in the office.

    Besides that it’s much more fun to see each other in real life, there are also some tax regulations that make it hard to work from abroad.

    For a lot of vacancies, we have the possibility to help you (and your family) to relocate to the Netherlands. Visit our relocation page for more information about moving to the Netherlands.

  • How often do I go to the office?

    Together with your manager, you decide how many days you and your team will be in the office. On average, this will be at least 3-6 times a month, but more often is possible.

  • Do you help new colleagues relocate?

    Yes, we do this for most vacancies. If the vacancy you’re interested in has a relocation sign on top, it means we’ll help you (and your direct family) to relocate. You can find more information on our relocation page.


    Do I need to start living in Rotterdam when I move to the Netherlands?

    No, that’s not necessary. The Netherlands is a small country, so if you want to live in Amsterdam, Utrecht, or Tilburg, that’s okay. As long as you are able to meet your team in the Rotterdam office around 3-6 times a month, you can live wherever you want.

  • Can I keep developing myself?

    Coolblue University: learning at Coolblue, in a different way.

    With over 30 training courses in our own Coolblue University, you can get a little bit better every day. At Coolblue, we go back to school sometimes. But not by sitting there quietly and just listening. The training courses aren't boring, but interactive. You have to do exercises and have discussions with others. At the Coolblue University, we choose what we want to learn, so we can continue to develop en become real experts. For example, a Delivery Driver needs different training courses than a Customer Service Employe and a starter needs different courses than a manager.

Apply!
Like what you see? You can become a Coolbluer, apply now!
  • 1

    APPLY

    Go for it

  • 2

    PHONE CALL

    It's for you

  • 3

    CASE

    Open and shut

  • 4

    2ND ROUND

    Go for the fridge

  • 5

    CONTRACT

    I do

Apply!
Like what you see? You can become a Coolbluer, apply now!
  • 1

    APPLY

    Go for it

  • 2

    PHONE CALL

    It's for you

  • 3

    CASE

    Open and shut

  • 4

    2ND ROUND

    Go for the fridge

  • 5

    CONTRACT

    I do

Questions?
Just contact
Applications from freelancers, employment agencies, and recruitment agencies are not appreciated.
Jonne den Boer