{"id":1901902,"url":"https://alion.io/job/qualysoft-mid-fullstack-developer","title":"Mid Fullstack Developer","company":{"id":6361,"name":"Qualysoft","domain":"qualysoft.com","url":"https://alion.io/company/qualysoft","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":82,"open_postings":35,"ghost_share":0,"stale_share":0.914,"repost_share":0,"time_to_fill_p50_days":13,"computed_at":"2026-10-10T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bucharest, Romania"],"countries":["RO"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":39000,"max_usd":76000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":11},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"ASP.NET Core","optional":false},{"name":"C#","optional":false},{"name":"Copilot","optional":false},{"name":"Git","optional":false},{"name":"MS SQL","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-05T09:56:56Z","employer_posted_date":"2026-10-05","last_verified_at":"2026-10-11T16:56:04Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"Responsibilities\nDesign, develop, test, and maintain features across backend and frontend applications.\nDevelop backend services and REST APIs using .NET and C#.\nDevelop responsive web applications and reusable components using Angular and TypeScript.\nDesign and maintain application logic and database integrations using SQL-based relational databases.\nWrite clean, maintainable, secure, and testable code following team development standards.\nEffectively use GitHub Copilot and other approved AI-assisted development tools to improve coding, testing, refactoring, and development productivity while ensuring code quality and correctness.\nAnalyze requirements and translate business needs into appropriate technical solutions.\nTroubleshoot and resolve application defects, performance issues, and production incidents.\nReview code and contribute to improving code quality, architecture, and development practices.\nWrite and maintain unit and integration tests and support QA activities.\nParticipate in application modernization and refactoring of existing components.\nConsider performance, scalability, security, and multi-tenant requirements when developing new functionality.\nCollaborate with Product, QA, DBA, and DevOps teams throughout development, testing, deployment, and production support.\nQualifications\n5 years of experience with C#, .NET / .NET Core, and ASP.NET Core.\n3 years of experience with Angular, TypeScript, HTML, and CSS.\nProven experience in enterprise-level software development (experience with high-performance applications)\nPractical experience using GitHub Copilot to support coding, refactoring, testing, code review, and technical problem-solving, while maintaining responsibility for code quality and correctness.\nExperience designing and consuming REST APIs.\nGood knowledge of relational databases, Microsoft SQL, data modeling, and database access from .NET applications.\nGood understanding of object-oriented programming, design patterns, and clean-code practices.\nExperience with Git and collaborative development workflows.\nExperience with unit testing, debugging, and application troubleshooting.\nUnderstanding of web application security, authentication, authorization, and role-based access.\nUnderstanding of multi-tenant SaaS application concepts and scalable application design.\nAbility to analyze technical problems and work independently on moderately complex development tasks.\nGood communication, collaboration, and documentation skills.","description_format":"text","description_chars":2483,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Romania","iso":"RO","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","IT Outsourcing & Dedicated Teams","Custom Software 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