Home > Careers > Luxembourg Based > Application Developer

Application Developer

At Proximus SpearIT, we do everything to enable companies to work smarter, safer and faster. Customers come to us for our wide and extensive offering of IT services. Due to our strong growth, we are always looking for new employees.


Proximus SpearIT strengths:

  • Infrastructure projects and integrations, on-site and in the cloud;
  • Services related to networks, security, Skype for Business, storage, network and server maintenance, monitoring, service desk, and on-site support;
  • Support by IT specialists, project managers and interim managers;
  • Sale of servers, network equipment, smartphones, tablets, PCs and accessories.

What do we expect from you?

Job Description


You will be part of the NTX Consortium Team in charge of operating the European Commission’s Network Managed Services under the NMSIII framework contract.

A team of 60 people is working permanently on-site (Luxembourg and Brussel).


  • Analyzing customer requirements
  • Developing existing programs by analyzing and identifying areas for modification
  • Software architecture design, together with architecture team
  • Creating technical specifications, writing program code and documenting
  • Testing the product in controlled situations before going live
  • Preparation of training manuals for users
  • Maintaining the systems once they are up and running
  • Interested and willing to learn new technologies
  • Continuous integration & Continuous documentation & Continuous deployment using a dynamic pipeline: Git to commit, Jenkins to orchestrate, SonarQube to control, Unit-test/Selenium/nightwatch to check and Ansible to deploy and rollback


  • At least 2/3 years of experience in software development
  • Perl, Python, Unix, Shell Scripting, Oracle, JavaScript (jQuery), SQL DB
  • Fluent in French and English is a requirement
  • Any knowledge or Experience with the following is beneficial but not mandatory:
  • Web front-end tools (JavaScript skills, preferably with React experience)
  • Microservice architecture (node.js or ServiceFabric or similar).
  • NoSQL databases (MongoDB or similar).
  • DevOps – CI, build automation, continuous deployment, fast path to live, etc.
  • Quality control of code and releases (TDD, unit testing, coding for testability).
  • Network and security Technologies

Working Location


What do we offer?

At Proximus SpearIT, you can take your career in many directions.

You will be among the first to explore new technologies and can constantly update your skills in our ICT Academy. Our working culture is that of an SME: we say it like it is and never shy away from a challenge.

Since we form part of the Proximus Group, you also benefit from the advantages and security of a large company. You can expect an attractive salary and an extensive package of fringe benefits.

Eager to take the plunge?

Don’t hesitate: quickly send us your motivation letter and CV using the button below.

If you have any questions about the job, feel free to call Arnaud Llamas Bravo on 0477 90 30 23.


Proximus SpearIT nv / sa - Carlistraat / Rue Carli 4, 1140 Evere, BE

Apply now!