{"id":1273110,"url":"https://alion.io/job/deltatre-senior-front-end-software-engineer","title":"Senior Front-End Software Engineer","company":{"id":47022,"name":"Deltatre","domain":"deltatre.com","url":"https://alion.io/company/deltatre","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"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":["Mumbai, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"CI/CD","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"Next.js","optional":false},{"name":"Node JS","optional":false},{"name":"React.js","optional":false},{"name":"Sass","optional":false}],"status":"live","first_seen_at":"2026-08-28T19:50:29Z","employer_posted_date":null,"last_verified_at":"2026-08-28T19:50:29Z","board_verified":false,"closed_at":null,"days_open":44,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":44},"description":"About the Role:\n\nWe are hiring for two tracks. Both roles are hands-on engineering positions for people who care about quality, take ownership of their work, and are comfortable in a cross-functional environment. The distinction lies in depth of experience, scope of contribution, and degree of independence expected.\n\nResponsibilities:\n\nAs a Senior Front-End Engineer, you will take end-to-end ownership of features and solutions across our platform. Beyond your own delivery, you will contribute actively to how the team works mentoring less experienced developers, shaping technical decisions at the solution and feature level, and helping establish standards that others build on.\n\nYour day-to-day will include:\n\n- Design, build, and maintain high-quality front-end experiences across web and mobile platforms.\n\n- Take the lead on solution and feature design bringing well-reasoned technical proposals and seeing them through to delivery.\n\n- Mentor mid-level and junior developers through code review, pairing, and day-to-day guidance helping build capability across the team.\n\n- Contribute to and evolve our shared component library and design system, with a focus on consistency, accessibility, and long-term maintainability.\n\n- Set a high bar for front-end performance profiling, measuring, and improving rendering, load times, and analytics instrumentation.\n\n- Collaborate with back-end engineers, QA, and product to define robust, scalable solutions.\n\n- Contribute to CI/CD pipelines and front-end tooling, improving build reliability and developer experience.\n\n- Stay current with the front-end ecosystem and bring emerging patterns and practice into the team.\n\nRequirements:\n\nYou produce work that others learn from. You don't wait to be asked you identify problems, propose solutions, and follow through. You understand that technical quality and team capability are inseparable, and you invest in both.\n\nRequired Skills:\n\n- Deep proficiency in React and NextJS, including cross-platform delivery.\n\n- Solid command of HTML and CSS/SCSS responsive and adaptive layouts, flexbox, grid.\n\n- Proven track record shipping apps across multiple targets: web, mobile (iOS/Android) and/or connected TV.\n\n- Experience building and maintaining component libraries or design systems.\n\n- Deep understanding of front-end performance measurement, optimisation, and analytics integration.\n\n- Experience with RESTful APIs or GraphQL.\n\n- Comfortable working within CI/CD pipelines and modern front-end tooling.\n\n- Demonstrated testing approach experience with modern front-end testing frameworks and a test-first mindset.\n\n- Clear communicator who can articulate technical decisions to peers and cross-functional stakeholders.\n\nValued:\n\n- Experience in the streaming or media industry VOD, live events, player integrations, or DRM.\n\n- Hands-on 10-foot development experience across Samsung Tizen, LG webOS, Apple TV, or Android TV / Fire TV.\n\n- Familiarity with client-side data event instrumentation.\n\n- Knowledge of Node.js, AWS (Lambda, S3, CloudFront), or back-end concepts.\n\n- Curiosity about the full stack and how front-end decisions interact with broader system design.\n\nSkills\nFrontend Architecture, React.js, Next.js, Javascript, RESTful API, GraphQL","description_format":"text","description_chars":3253,"description_truncated":false,"requirements":{"experience_years_min":6,"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":["Media & Entertainment","Broadcasting","Digital Media"],"lifecycle":[{"event":"open","at":"2026-09-26T00:07:01Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; 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