
Who are we?
Trasys International is a dynamic global organization that takes pride in being the trusted partner of EU Institutions. With strong commitment to excellence and a 30-years track record of delivering high-quality solutions, we are dedicated to supporting the growth and success of our clients. Our Mission is to help our clients keep up with the challenges of digital transformation by providing the right talent at the right time for the right job. To this end, we are constantly looking for talented professionals who are interested in working on challenging international projects and able to deliver high-quality results within multicultural environments. Our services include (but are not limited to) modernization of solutions, digital workspaces, cloud technologies and IT security Our Headquarters are in Brussels and we have active accounts and offices across Europe (i.e. Luxembourg, Amsterdam, Athens, Stockholm, Geneva).
Is this YOU?
For one of our main clients based in Warsaw, Poland we are looking for a Mid-Level SharePoint Developer willing to work as a freelancer (ideally already set up as a freelancer in a EU member state/country) for an EU intergovernmental agency responsible for supporting EU Member States in coordinating and managing external border security.
The organisation provides strategic guidance, operational support, risk analysis, and cross-border cooperation to ensure safe, lawful, and efficient mobility at Europe’s external frontiers.
The role will be performed in Near-Site meaning you must live within 2-hour radius of the Warsaw, Poland premises
Remote working mode but must be able to go on-site upon request (hence the 2-hour radius)
Start date: April 2026
More specifically, you will be responsible for:
Designing and developing the system.
Leading development teams.
Translating requirements into design.
Optimizing software for performance, security, and quality.
Producing technical documentation.
Estimating effort and time for development.
Setting software development standards.
Proposing technical solutions for business needs and technical problems.
Collecting and interpreting software metrics.
Managing configuration and releases.
Contributing to requirements analysis, testing, quality assurance, change management, and deployment.
Testing solutions and developing testing tools.
Documenting developments.
Prototyping solutions.
Acting as 2nd and 3rd line support.
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Are you the perfect match?
Minimum 6 years of experience in IT
Minimum 3 years of experience in SharePoint software development
University degree (completed BSc/MSc).
Minimum B2 level of English
An advanced level certificate in software development
Mastery of Sharepoint and Sharepoint platform-specific tools
Testing capabilities
Has gone at least 1 time through the complete lifecycle of the solution
Expertise in developing enterprise level software systems in SharePoint
Knowledge of UML and can design applications in UML
Proficiency in designing and developing: data layer, business logic layer and UI layer
Experience working in Scrum developments

Face aux enjeux numériques, les décideurs IT, les directions générales et les responsables métiers qui portent l’avenir des petites et grandes organisations belges et européennes ne cherchent pas seulement un prestataire, mais un partenaire capable de combiner vision stratégique globale et solutions sur mesure. De sécuriser vos données, de moderniser vos infrastructures et de renforcer la résilience de votre organisation.
Bienvenue chez KEYES…
Acteur engagé de l’écosystème numérique, nous accompagnons les organisations privées et publiques, en Belgique et en Europe, dans leur transformation digitale.
Notre groupe, qui combine la puissance d’un leader (Top 3 ICT en Belgique) avec la proximité d’un expert local, conçoit et déploie des solutions globales et souveraines, créatrices de performance et d’agilité.
Nos expertises
Présent dans des domaines clés tels que la santé, le secteur public, les grandes organisations et les PME, KEYES s’appuie sur un large éventail d’expertises :
· Cloud : Des solutions hybrides et souveraines pour une infrastructure flexible
· Cybersecurity : Une protection proactive pour garantir l'intégrité de vos systèmes
· Business Software : Des applications métiers pour optimiser vos processus
· Mainframe : La maîtrise et la modernisation de vos systèmes critiques
· Data & AI : Transformer vos données en leviers de décision stratégique
· Advisory : Un accompagnement stratégique pour éclairer vos choix technologiques
· Staffing : Les meilleurs talents IT pour renforcer vos projets
Chez KEYES, nous croyons qu'une technologie responsable est le moteur d'une société plus performante.
Guidée par les enjeux métiers de nos clients et la recherche de valeur durable, nos 3.700 experts ne se contentent pas d'installer des solutions ; ils partagent votre vision, anticipent vos risques et bâtissent, avec vous, le futur numérique de la Belgique.
Unlock the change. Envision the future.