{"id":4074485,"url":"https://alion.io/job/qualysoft-frontend-developer-2","title":"Frontend 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":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"C","score":68,"open_postings":67,"ghost_share":0.522,"stale_share":0,"repost_share":0.015,"time_to_fill_p50_days":23,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Frontend","role_family":"Frontend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Budapest, Hungary"],"countries":["HU"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Angular","optional":false},{"name":"CI/CD","optional":false},{"name":"JavaScript","optional":false},{"name":"TypeScript","optional":false},{"name":"Vue.js","optional":false}],"status":"closed","first_seen_at":"2026-11-11T11:32:50Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-12T13:46:25Z","board_verified":false,"closed_at":"2026-11-12T13:46:25Z","days_open":1,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":1},"description":"Would you like to work on web applications where complex application logic powers the user interface behind the scenes?\nOur client's team develops service and diagnostic tools for railway brake and door control systems, supporting engineers in testing these systems and commissioning trains. As a JavaScript/TypeScript Developer, you will implement new features and the underlying application logic, while also enhancing and maintaining existing solutions.\nWe are looking for someone who is not only interested in building user interfaces but is also eager to understand and contribute to the complex processes and business logic that drive them.\nResponsibilities:\nDeveloping the user interface and complex application logic of web-based diagnostic applications using JavaScript/TypeScript.\nImplementing new features, enhancing existing functionality, and fixing software defects.\nParticipating in code reviews and improving code maintainability and quality.\nClarifying requirements and aligning technical solutions with the development team and related stakeholders.\nTesting developed solutions and maintaining the associated technical documentation.\nAnalyzing and resolving software issues identified during product support.\nContributing to the evaluation of new technical solutions and participating in international development projects.\nRequirements:\nBachelor's or Master's degree in Computer Engineering, Electrical Engineering, or an equivalent field.\nHands-on experience in JavaScript and/or TypeScript application development.\nKnowledge of web technologies, including HTML, CSS, and browser fundamentals.\nAbility to understand existing codebases, troubleshoot complex issues, and develop well-structured, maintainable solutions.\nAbility to work independently on clearly defined development tasks while collaborating effectively on technical problem-solving.\nEnglish language skills sufficient for professional discussions and working with technical documentation.\nConfident spoken and written English communication skills.\nAdvantages:\nExperience in developing complex web applications with substantial client-side application logic.\nKnowledge of Vue.js, Angular, ExtJS, or other JavaScript/TypeScript frameworks.\nExperience with automated testing and 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