{"id":3210874,"url":"https://alion.io/job/tesco-sr-frontend-developer","title":"Sr. Frontend Developer","company":{"id":1059,"name":"Tesco","domain":"tesco.com","url":"https://alion.io/company/tesco","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Avature","truth_index":{"grade":"A","score":100,"open_postings":18,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":8,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Frontend","role_family":"Frontend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":18000,"max_usd":48000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":8},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"JavaScript","optional":false},{"name":"OpenTelemetry","optional":false},{"name":"Playwright","optional":false},{"name":"React Query","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false},{"name":"Zustand","optional":false}],"status":"live","first_seen_at":"2026-10-24T16:36:15Z","employer_posted_date":null,"last_verified_at":"2026-10-24T16:36:15Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"We are looking for a highly skilled and product-focused Senior Frontend Engineer to join our Marketplace Portal team. In this role, you will own complex frontend initiatives end-to-end, architect scalable frontend systems, and drive technical excellence across the platform. You will operate with strong problem-solving, architectural awareness, and product thinking, while influencing decisions across teams.\n\nResponsibilities: \nOwn end-to-end delivery of complex frontend features and modules.\nDesign scalable, reusable component architectures and frontend patterns.\nOptimize performance (rendering, bundle size, responsiveness) and implement efficient data-fetching and caching strategies (React Query).\nDrive adoption of observability (Web Vitals, OpenTelemetry) for proactive issue detection.\nWrite and enforce high-quality, testable code, improving unit and E2E coverage (Playwright).\nEstablish and evolve state management patterns (Zustand or similar).\nCollaborate with Product, UX, and backend teams to shape requirements, APIs, and user experience.\nMentor engineers, contribute to standards, and influence frontend best practices.\nLeverage and advocate AI coding companions to improve development velocity, code quality, and delivery outcomes.\n\nRequirements: \n4-7 years of experience in frontend development.\nStrong expertise in React, TypeScript, and modern JavaScript.\nDeep experience with state management and data-fetching (Zustand, React Query, or similar).\nStrong understanding of frontend performance optimization (rendering, memoization, bundling).\nExperience building scalable frontend applications and component architectures.\nStrong experience with testing (unit + E2E, Playwright preferred).\nExperience with frontend observability and monitoring.\nAbility to independently drive ambiguous problems to solutions.\nStrong collaboration and ability to influence technical decisions.\nProven ability to effectively use AI tools to improve productivity and delivery.\nSkills\nJavaScript, React.js","description_format":"text","description_chars":2007,"description_truncated":false,"requirements":{"experience_years_min":4,"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":["Retail & Shop Systems","Online Groceries"],"lifecycle":[{"event":"open","at":"2026-10-24T16:36:15Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":8,"reasons":["seen:0","velocity","win:early","comp:brand"],"computed_at":"2026-10-25T05:49:26Z"},"pay":null,"html_url":"https://alion.io/job/tesco-sr-frontend-developer","json_url":"https://alion.io/job/tesco-sr-frontend-developer.json","meta":{"generated_at":"2026-10-26T01:34:16Z","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":2021,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"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":1059},"rest":"https://alion.io/mcp/rest/get_company?id=1059"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftesco-sr-frontend-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%2Ftesco-sr-frontend-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%2Ftesco-sr-frontend-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/tesco-sr-frontend-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftesco-sr-frontend-developer"}]}