Senior Full Stack Developer – Angular & .NET (EU Agency, Warsaw)

We are looking for two Senior Full Stack Developers (Advanced level) to join the Software Factory of an EU Agency headquartered in Warsaw. The Software Factory runs the full software development lifecycle for internal and external projects, from requirements through design, development, testing and deployment to maintenance. The consultants will be core members of one or more development teams. They will design, build and maintain both front-end and back-end components, guide architecture decisions and mentor junior developers.

Engagement details

• Positions: 2 (one contract per consultant)
• Delivery mode: Near-site. You work remotely from your own location, which must be within about 2 hours of the client HQ in Warsaw. The client provides a virtual desktop; you need your own laptop.
• Workload: full time, about 220 working days a year (40 h/week, standard office hours). Travel is not foreseen and on-call duty is not required.
• Start: from December 2026, at the latest within 3 months of award
• Duration: 12 months, renewable up to 42 months in total (12 + 12 + 12 + 6)
• Compensation: EUR 390 per day, engaged through DID S.r.l. (B2B / freelance or other arrangement)
• Security: you must be eligible for an EU personal security clearance at EU CONFIDENTIAL level. The procedure starts after onboarding.

Main responsibilities

• Design and develop systems end to end, translating requirements into technical design
• Lead development teams, set development standards and mentor junior developers
• Optimise software for performance, security and quality; collect and interpret software metrics
• Estimate effort and time; propose technical solutions for business needs and technical problems
• Manage configuration and releases; contribute to testing, QA, change management and deployment
• Build prototypes, testing tools and technical documentation
• Act as 2nd and 3rd line support

Technical stack

• Front-end: Angular, RxJS, NgRx, TypeScript, CSS/SCSS; micro-frontends
• Back-end: .NET / C#; Node.js with NestJS (backend or BFF); microservices
• Data: Microsoft SQL Server and non-relational databases; GraphQL
• Quality and DevOps: unit and automated testing; CI/CD (Azure DevOps); container-based environments (OpenShift)
• Practices: OOP and functional design patterns, UML, Scrum

Mandatory requirements (all must be met)

• Bachelor's degree or higher (EQF level 6). The degree does not need to be in IT.
• English B2 or higher, proven by an official certificate (e.g. TOEFL, IELTS, Cambridge, TOEIC, EF SET or an assessment from a certified centre)
• At least 6 years of IT professional experience
• At least 3 years as a Software Developer at senior / lead level
• At least one advanced-level professional certification in software development, e.g. a Microsoft, Oracle, AWS or equivalent developer certification. Equivalency is subject to the client's acceptance.
• Has gone through the complete solution lifecycle at least once; expert in enterprise-level systems across the data, business-logic and UI layers
• Proven experience leading technical teams and working in Scrum
• Residence within about 2 hours of Warsaw
• EU citizenship, or other eligibility for an EU security clearance

Assessment

Shortlisted candidates take a technical interview with the client (MS Teams with video, or on site). There is no written test. The interview covers the profile knowledge and the stack above, and you need to score at least 60% to be eligible. Team leadership, Scrum, Angular/NgRx and .NET/C# carry the most weight. You will be offered two dates and must accept one.

Deadlines

• Applications close: 13 November 2026
• Complete document package to DID by 16 November 2026
• Proposal submitted to the client: 20 November 2026

Documents required for the proposal

• Detailed CV in English. DID will help you transfer it into the client's Personnel Submission Form.
• Copy of your highest diploma
• English certificate (B2 or higher)
• Copies of your professional certifications
• Signed Statement of Intent, Statement of Compliancy and Code of Conduct declaration (templates provided by DID; handwritten or qualified electronic signature)

Everything declared in the CV must be backed by documents. A valid criminal record extract (issued within the last 6 months) is required before the start date.