Senior Frontend Developer - Angular (100% remote based in European Union)

Who are we?

NRB - 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 our customer based in Warsaw, Poland - an European Institution, we are looking for a Senior Frontend Engineer (Angular) - Consultant to support the ongoing evolution of OPERA EVO, a mission-critical enterprise application used by over 1,300 users across EU Member States and Schengen Associated Countries. The system manages operational resources, deployments, financials, and strategic planning in line with EU border management regulations. As part of a Scrum team, you’ll contribute to incremental releases, change requests, and incident resolution, ensuring the system remains robust, scalable, and aligned with evolving business needs. What makes OPERA EVO exciting is its scale and complexity—handling thousands of deployments, grant agreements, and real-time operational data across Europe. You’ll be working on a high-impact system that integrates with multiple platforms and supports dynamic, fast-evolving business processes. It’s a rare opportunity to contribute to a tool that directly supports EU-wide border operations and policy implementation.

You will be able to work 100% remotely based within the European Union, on a B2B/freelance contract. The mission is long-term (annual contract + extensions).

More specifically, you will be responsible for…

• Develop and implement frontend features based on change requests using Angular and Telerik Kendo UI.

• Estimate effort for new features, understanding their impact on the system.

• Perform unit and integration testing before handing over to QA testers.

• Maintain and expand system integrations with other Frontex platforms.

• Refactor and improve existing code, including platform and tool migrations.

• Provide 3rd level support, analyzing production incidents and delivering fixes.

• Collaborate closely with analysts, testers, and backend developers in a Scrum environment.

• Participate in sprint planning, reviews, and retrospectives, delivering working code every 3 weeks.

• Ensure all work meets the OPERA EVO Definition of Done and quality standards.

• Contribute to continuous improvement of the system and development processes.

#LI-VB1

Are you the perfect match?

• University degree in Information Technology/Computer Science or related subject (BSc/MSc/PhD).

• At least one certification - Advanced level certificate in software development technology domain.

• 6+ years of frontend experience using Angular.

• Minimum 2 years’ experience in backend development (preferably using .NET).

• Experience with UML and you can design applications in UML.

• Experience in designing and developing the data layer, business logic layer, and UI layer.

• Capable of leading technical teams.

• Previous hands-on experience with directly similar systems, including:

  • Telerik Kendo UI

  • RESTful web services layer

  • .NET Framework

  • Microsoft SQL Server

• Sound knowledge and/or experience with UI/UX design principles.

• English language proficiency certificate (B2/C1).