{"id":2216613,"url":"https://alion.io/job/testtriangle-frontend-react-developer","title":"Frontend_React Developer","company":{"id":4380438,"name":"Test Triangle","domain":"testtriangle.com","url":"https://alion.io/company/testtriangle","size_band":"1001-5000","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Zoho Recruit","truth_index":null},"role":"Frontend","role_family":"Frontend","seniority":null,"employment_type":"contractor","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sheffield, United Kingdom"],"countries":["GB"],"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":"Agile","optional":false},{"name":"CI/CD","optional":false},{"name":"Figma","optional":false},{"name":"JavaScript","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"Rest API","optional":false},{"name":"Sass","optional":false},{"name":"State Management","optional":false},{"name":"TypeScript","optional":false},{"name":"Adobe XD","optional":true},{"name":"Material UI","optional":true},{"name":"Next.js","optional":true},{"name":"React Query","optional":true},{"name":"Sketch","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2026-10-10T08:37:28Z","employer_posted_date":"2026-10-10","last_verified_at":"2026-10-12T00:35:49Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Role Overview\nWe areseekinga highly skilledReact Developer with strong UX Designexpertiseto design and build intuitive, scalable, and user-centric web applications. The ideal candidate should have hands-on experience in React development and a deep understanding of user experience principles, wireframing, prototyping, accessibility, and responsive design.\nThe candidate will collaborate closely with Product Owners, Business Analysts, UX Designers, and Engineering teams to transform business requirements into engaging digital experiences.\nKey Responsibilities\nReact Development\nDevelop modern, responsive web applications using React.js.\n\nBuild reusable UI components and front-end libraries.\n\nImplement state management using Redux, Context API, or equivalent frameworks.\n\nIntegrate REST APIs and backend services.\n\nOptimizeapplications for performance, scalability, and security.\n\nParticipate in code reviews, testing, and CI/CD deployment activities.\n\nUX Design\nCreate user journeys, wireframes,mockups, and interactive prototypes.\n\nConduct user research and usability analysis.\n\nDesign intuitive experiences aligned with business goals.\n\nDevelop andmaintaindesign systems andcomponentlibraries.\n\nEnsure compliance with accessibility standards (WCAG).\n\nCollaborate with stakeholders tovalidatedesign concepts and improve user satisfaction.\n\nCollaboration\nWork closely with product teams to translate requirements into user-friendly solutions.\n\nPartner with developers to ensure design feasibility and consistency.\n\nContribute to Agile ceremonies, sprint planning, and estimation activities.\n\nMandatory Skills\nReact Development\nReact.js\n\nJavaScript (ES6+)\n\nTypeScript\n\nHTML5\n\nCSS3 / SCSS\n\nRedux / Context API\n\nREST API Integration\n\nResponsive Web Design\n\nUX Design\nFigma\n\nWireframing & Prototyping\n\nUser Research\n\nUser Journey Mapping\n\nInteraction Design\n\nDesign Systems\n\nAccessibility (WCAG)\n\nGood to Have Skills\nNext.js\n\nReact Query\n\nMaterial UI / Tailwind CSS\n\nAdobe XD / Sketch","description_format":"text","description_chars":1987,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-10T08:37:28Z"}],"visa":[],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.516,"p_room":1,"age_days":1,"expected_fill_days":20,"reasons":["conf:2","agency","win:early"],"computed_at":"2026-10-12T03:05:37Z"},"pay":null,"html_url":"https://alion.io/job/testtriangle-frontend-react-developer","json_url":"https://alion.io/job/testtriangle-frontend-react-developer.json","meta":{"generated_at":"2026-10-12T03:05:37Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":4622,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4380438},"rest":"https://alion.io/mcp/rest/get_company?id=4380438"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftesttriangle-frontend-react-developer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftesttriangle-frontend-react-developer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftesttriangle-frontend-react-developer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/testtriangle-frontend-react-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftesttriangle-frontend-react-developer"}]}