Web Developer

  • Kerkrade, Netherlands, Kerkrade, Netherlands
  • Full-time

Company Description

We are a fun-loving, hard-working group of people who enjoy winning as a team! Are you a web applications developer with experience in developing enterprise software? Then we are looking for you! Roser ConSys B.V. is a subsidiary of the American based Prometheus Group and offers a best in class software solution to manage factory stops (Turnarounds) in an efficient, high-quality and secure manner. Our software is mainly used in the petrochemical industry. We have a portfolio of applications that support different aspects of maintenance processes. In the Netherlands we have two offices, your new job location will be in Kerkrade.

Web applications developer (fulltime):

As a web developer at Roser, you are an important part of the organization. You will work in an existing agile team with other developers, a product owner, and a software tester.

Job Overview:

  • Implement new features and corrections for .NET core/JavaScript/HTML based web applications and service backends
  • Debug software and configuration issues discovered in development, QA, deployment, and live implementations, including remote debugging in customer environments
  • Work with teammates in daily scrums and code reviews to prioritize development items, share information, and build individual skills


  • College level (HBO) of work and thinking.
  • 2-5 years of experience with enterprise web applications
  • Proficiency in object-oriented programming concepts and methods
  • Extensive knowledge of web standards (HTTP, JSP, HTML5, CSS3, JS)
  • Familiarity with principles of Service Oriented Architectures, both for RESTful architectures and SOAP web-services
  • Experience using JavaScript front-end development frameworks (ie. React, AngularJS, Backbone, Dojo, ExtJS, jQuery, YUI)
  • Experience with relational database storage and SQL as well as Entity Framework or other ORM technology
  • Familiarity with the Inversion of Control/Dependency Injection paradigm
  • Ability to apply software design patterns (ie. Gang of Four) in practice
  • Ability to break down complex development tasks into actionable steps
  • You have an excellent command of the Dutch language and have a good understanding of the English language in word and writing
  • Ability and eagerness to learn new technologies
  • You are available 40 hours a week

Preferred experience:

  • .NET Core
  • Visual studio IDE or similar
  • React
  • Typescript
  • EF core
  • GIT

What do we offer?

You will be given a responsible and versatile position within an international company where there is room for own initiative and development. We offer a market conform salary and excellent benefits such as a training budget and performance ratification. We live and breathe off a meritocracy-based promotion system. Promotions are not based on tenure but based on your ability & talent you possess within this role.

  • A market-based salary
  • Casual Dress Code
  • Office socials, company parties, holiday celebrations
  • Company laptop
  • Travel expenses paid