{"id":1138310,"url":"https://alion.io/job/appier-senior-frontend-development-engineer","title":"Senior Frontend Development Engineer","company":{"id":177717,"name":"Appier","domain":"appier.com","url":"https://alion.io/company/appier-2","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":87,"open_postings":64,"ghost_share":0.141,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":244,"computed_at":"2026-09-26T05:45:00Z"}},"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":["Taipei, Taiwan"],"countries":["TW"],"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":"Copilot","optional":false},{"name":"Cursor","optional":false},{"name":"esbuild","optional":false},{"name":"Git","optional":false},{"name":"GraphQL","optional":false},{"name":"JavaScript","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Rollup","optional":false},{"name":"Svelte","optional":false},{"name":"Tabnine","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"Vue.js","optional":false},{"name":"Webpack","optional":false},{"name":"Bitbucket","optional":true},{"name":"Chrome DevTools","optional":true},{"name":"CI/CD","optional":true},{"name":"Docker","optional":true},{"name":"GitHub Actions","optional":true},{"name":"Jenkins","optional":true},{"name":"Jest","optional":true},{"name":"Lighthouse","optional":true},{"name":"Next.js","optional":true},{"name":"Node JS","optional":true},{"name":"Nuxt.js","optional":true},{"name":"Playwright","optional":true},{"name":"PostCSS","optional":true},{"name":"Sass","optional":true},{"name":"SvelteKit","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2025-05-23T09:30:00Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-27T00:18:34Z","board_verified":true,"closed_at":null,"days_open":491,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":491},"description":"About Appier \nAppier is a software-as-a-service (SaaS) company that uses artificial intelligence (AI) to power business decision-making. Founded in 2012 with a vision of democratizing AI, Appier’s mission is turning AI into ROI by making software intelligent. Appier now has 17 offices across APAC, Europe and U.S., and is listed on the Tokyo Stock Exchange (Ticker number: 4180). Visit www.appier.com for more information.\nAbout the role\nFrontend engineers at Appier focus on handcrafting sophisticated web UIs and ad content using cutting-edge front-end development technologies and tools. We collaborate closely with designers and backend engineers to deliver high-quality, smooth, and elegant web applications for the advertising domain as well as support daily operations within Appier.\n [The seniority/title is determined by job-related skills, experience, and evaluation after the interview.]\n Responsibilities\nDesign and develop reusable advertising UI components (e.g., banners, video ads) and supporting systems using modern JavaScript frameworks and AI-powered tools.\nBuild and maintain a modular JavaScript library or SDK to ensure scalable, consistent, and easily integrated ad rendering and tracking.\nOptimize ad content performance through efficient loading strategies and responsive design.\nDevelop integrations with external SSP platforms, ensuring compliance with technical standards.\nImplement and manage analytics tools to monitor user interaction and ad effectiveness, delivering actionable insights.\nParticipate in brainstorming sessions, contributing innovative technical solutions across UI/UX, algorithms, and product development.\nUtilize AI-powered development tools (e.g., GitHub Copilot, Tabnine, Cursor) to enhance coding efficiency and maintain code quality.\nAbout you\n[Minimum qualifications]\nSolid understanding of HTML, CSS, JavaScript, TypeScript, DOM, HTTP and web standards.\nKnowledge of modern front-end frameworks like React, Vue, Svelte.\nExperienced in integrating with REST APIs and GraphQL\nExperienced with bundler: Vite, Webpack, esbuild, and Rollup.\nFamiliarity with Git for version control.\nExperience ensuring cross-browser compatibility.\nPractice coding conventions, syntax standards, and thorough documentation.\nShows initiative and strong interpersonal skills in problem-solving.\nAbility to work effectively both independently and as part of a team.\n[Preferred qualifications]\nExplores and shares insights on AI tools like GitHub Copilot, Tabnine, Cursor, and AI-driven testing to enhance front-end development and code quality.\nExperienced with meta frameworks like: Next.js, Nuxt.js, SvelteKit.\nExperienced with CSS-in-JS, PostCSS, SASS, and Tailwind CSS.\nSkilled in Jest, React Testing Library, Cypress, and Playwright for testing.\nExperienced in web performance optimization using Core Web Vitals, Lighthouse, WebPageTest, and Chrome DevTools.\nExperienced in debugging on any web environments like webview or browser.\nExperienced in server-side JavaScript runtime: Node.js, bun, deno.\nExperienced with relational databases or NoSQL databases.\nFamiliar with CI/CD tools (GitHub Actions, Jenkins, Bitbucket) and Docker.","description_format":"text","description_chars":3169,"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":["Artificial Intelligence","Cybersecurity","LLM & Generative AI"],"lifecycle":[{"event":"open","at":"2026-09-23T09:18:58Z"}],"liveness":{"score":22,"band":"cold","label":"Long shot","p_open":1,"p_active":0.787,"p_room":0.28,"age_days":490,"expected_fill_days":244,"reasons":["conf:0","velocity","win:tail","crowd:"],"computed_at":"2026-09-26T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/appier-senior-frontend-development-engineer","json_url":"https://alion.io/job/appier-senior-frontend-development-engineer.json","meta":{"generated_at":"2026-09-27T01:43:50Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1557,"day_limit":5000,"remaining_today":3443,"minute_limit":60,"resets_at":"2026-09-28T00:00:00Z"}}}