Middle Software Developer

The opportunityThis is a near-site contract role based at a EU agency headquarters in Warsaw, working on enterprise SharePoint solutions. You'll be embedded with the client team, contributing to full-stack development, technical leadership, and 2nd/3rd line support across a regulated public-sector environment. Contract details: 12-month initial term with up to 3 annual renewals (maximum 48 months total). Earliest start: 1 August 2026. ~220 man-days per year (normal working hours). What you'll doDesign, develop, and optimise enterprise-level software systems in the SharePoint domainLead technical teams and translate business requirements into architecture and designDevelop across the full stack: data layer, business logic layer, and UI layerBuild and maintain custom SharePoint solutions (SDK, workflows, timer jobs, features)Develop . NET / . NET Core and SQL Server applications with T-SQLBuild and consume Web Services, REST APIs, and HTTP APIsManage Azure DevOps pipelines, configuration, and releasesProduce technical documentation, estimates, and prototypesAct as 2nd and 3rd line supportContribute to requirements analysis, testing, QA, change management, and deploymentWhat you bringMandatory: ICT-relevant degree (minimum Level 6)English language proficiency at B2 (CEFR) or aboveAt least 4 years of ICT-relevant professional experienceAt least 2 years of project experience relevant to software developmentAt least 1 intermediate-level certification in software development relevant to the SharePoint domain (or internationally recognised equivalent)Personal Security Clearance (at least Level 1 required — candidates must hold or be eligible to obtain)Technical requirements: Minimum 2 years of experience in a Full-stack SharePoint support or developer role (custom solutions, SDK, workflows, timer jobs, features)Microsoft . NET / . NET Core, Microsoft SQL Server, T-SQLAzure DevOps pipelinesWeb Services, REST API, HTTP APIHTML & CSS (responsive design), JavaScript, TypeScript (arrow functions, destructuring), ReactUML — ability to design applications in UMLScrum / agile development experienceProven ability to lead technical teamsAssessment: Written test (up to 100 points, 60% pass threshold) + interview (up to 100 points, 60% pass threshold). LocationFrontex Headquarters, Warsaw, Poland. Near-site service provision (Lot 1). Some travel to other locations may be required.