.NET React Developer EU public

Britenet Warszawa 2026-10-08

Our expectations

Minimum level of education - level 6 (bachelor's degree)- ICT relevant degree is NOT mandatory
Minimum IT relevant professional experience (years) - 4
Minimum project experience relevant to the profile or at similar position (years) - 2
At least 1 certification among: Intermediate level certificate in software development relevant to the domain or an equivalent certification recognized internationally (subject to acceptance as a valid credential by the Contracting Authority)
Developed front-end solutions under SharePoint Framework (SPFx and REACT) and other client-side frameworks/libraries (for example JavaScript)
Developed advanced consumption of SharePoint data using PnP, SharePoint REST API, and Microsoft Graph API.
Developed secure client-side components
Developed (server-side) code (C# / .NET Framework/ SQL) including Web Parts, Event Receivers, and Timer Jobs.
Experienced with enforcing secure coding principles (OWASP) across both .NET server code and JavaScript client code to prevent vulnerabilities like XSS or SQL injection.
Holds valid Microsoft Certificates relevant for the profile
Developed SharePoint On-line solutions using Power Platform
English at min. B2 level
Has gone at least 1 time through the complete lifecycle of the solution
Expert in developing enterprise level software systems in specified technology domain
Knows UML and can design applications in UML
Proficient in designing and developing: data layer, business logic layer and UI layer
Worked in Scrum developments
Is capable for leading technical teams
Holds ability to document effectively technical solutions
Presents problem solving skills

About the role

Join an innovative environment and turn ambitious ideas into reality together with Britenet. We are a European IT company with strong Polish roots, already trusted by more than 200 business partners from all over the world.

This time you have the chance to be part of a project related to the development, consulting and support of IT systems for Frontex. The European Border and Coast Guard Agency supports EU Member States and Schengen-associated countries in the management of the EU's external borders and the fight against cross-border crime.

,[Main responsibilities, Designs and develops the system, Lead development teams, Translates requirements into design, Optimizes software from performance, security and quality points of view, Produces technical documentation, Estimates effort and time for development, Sets software development standards, Propose technical solutions for business needs and technical problems, Collects and interprets software metrics, Manages configuration and releases, Contributes to requirements analysis, testing, quality assurance, change management, deployment, Tests solutions and develops testing tools, Documents developments, Prototypes solutions, Acts as 2nd and 3rd line support] Requirements: React