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One Source Consulting - Frontend Developer

Duration: Long-term

Languages: FR + EN



Job Context:


We are specifically looking for an experienced front-end developer for maintaining our Information Systems and building new ones.


Job Description

  • The requested expertise concerns the front-end, meaning everything related to the presentation layer in Web applications.

  • The tasks that the developer will have to perform are the following:

  • Improve the development workflow,

  • Develop REST APIs,

  • Design and improve the user interfaces (GUI),

  • Assist and evangelise colleagues with front-end technologies,

  • Analyse the current architecture and advise for improvement,

  • Analyse and implement new functionalities,

  • Apply corrective maintenance to existing systems,

  • Deploy new releases in different environments,

  • Analyse, implement and maintain the database model,

  • Write tests,

  • Write technical documentation.


In order to execute the above-mentioned tasks, the following expertise is required

  • Excellent knowledge of JavaScript/HTML5/CSS3,

  • Excellent knowledge of functional/reactive programming,

  • Excellent knowledge of Angular, TypeScript and Node,

  • Good knowledge of Agile methodologies,

  • Good knowledge of TDD (Tests Driven Development),

  • Good knowledge of Rest/SOAP APIs,

  • Knowledge of RxJS and NgRx,

  • Knowledge of Java or any other back-end technology,

  • Knowledge of Oracle Database, SQL and PL/SQL,

  • Good writing skills.

  • Knowledge of Amazon Web Services, Docker and Atlassian tools (Jira, Confluence, Bamboo) is an asset.


Working Environment


Work will be performed in the Commission's offices within the IT team. 

The candidate has to be fluent in English, French is an asset.



Security Clearance


The candidates must be eligible for obtaining a security clearance to handle European Union Classified Information up to the level of "Secret UE", according to Commission Decision of 29 November 2001 (2001/844/EC, Ecsc, Euratom) and Commission Decision of 3 February 2005 (2005/94/EC, Euratom) amending Decision 2001/844/EC, Ecsc, Euratom. Oib reserves the right to ask that the procedures to obtain the security clearance start during the execution of the contract.

Company description

One Source is a Belgium based recruitment agency with high-qualified and proven professionals in providing recruitment & Staffing services for qualified, professional and skilled people across Belgium. We operate across the private and public sectors, dealing in permanent positions, contract roles and temporary assignments. Our delivery model includes on-site, off -site, off -shore and hybrid delivery solutions.

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