Senior Full Stack Software Development Services

Location:Off-siteSecurity ClearanceNATO SecretReference No2026-0043 / Off-siteDeadline For Application1 2 .05 .2026 r.Skills, Knowledge, Experience Required Senior-level full stack development experience with at least 8 years of experience,covering : frontend and backend development, system architecture, integration,implementation and end-to-end ownership from design through deployment ; 2.Extensive knowledge in frontend (Vue.js, React, Astro) and backend frameworks ( Python,FastAPI ), including: Frontend application architecture and state management, backendAPI design, schema validation, and service orchestration ; 3.Proven experience integrating frontend applications with backend APIs and data services, including: high-volume data ingestion and querying, search, retrieval, and analytics-oriented backends, performance-aware UI–backend interaction patterns . Desirable Relevant experience with NATO and/or international organizations is highly desired ; Experience in multi-stakeholder and high-accountability environments, including: Auditability and traceability requirements, governance, review, and acceptance processes, coordination between technical, policy, and operational stakeholders . Duties/role:  Providing senior full ‑ stack software development services ;  Architecting full ‑ stack analytical applications ;  Designing system and application architectures . Additional information: If you are interested, for further information, please contact the point of contact for this offer. VECTOR SYNERGY sp. z o.o., ul. Marcelińska 90, 60-324 Poznań, NIP PL7811857270, REGON 301575740, KRS: 0000369575Rejestr Przedsiębiorców KRS prowadzony przez Sąd Rejonowy Poznań – Nowe Miasto i Wilda w Poznaniu, VIII Wydział Gospodarczy KRS, kapitał zakładowy wynosi: 73.852,80 złotych wpłacony w całości, TEL +48 616684500, FAX +48 616684501, www.vectorsynergy.com , info@vectorsynergy.com