{"id":698940,"url":"https://alion.io/job/wati-io-full-stack-engineer-frontend-focus-saas","title":"Full-Stack Engineer - Frontend Focus (SaaS)","company":{"id":19796,"name":"Wati","domain":"wati.io","url":"https://alion.io/company/wati-io","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"A","score":93,"open_postings":62,"ghost_share":0.032,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":174,"computed_at":"2026-10-16T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Shenzhen, China","Hong Kong"],"countries":["CN","HK"],"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":"AI Agents","optional":false},{"name":"Go","optional":false},{"name":"JavaScript","optional":false},{"name":"Multimodal AI","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"TypeScript","optional":false},{"name":"WhatsApp","optional":false},{"name":"AWS","optional":true},{"name":"Cursor","optional":true},{"name":"Dify","optional":true},{"name":"Edge AI","optional":true},{"name":"GCP","optional":true}],"status":"live","first_seen_at":"2025-12-03T00:00:00Z","employer_posted_date":"2025-12-03","last_verified_at":"2026-10-16T14:16:05Z","board_verified":true,"closed_at":null,"days_open":317,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":317},"description":"Wati is the world's leading WhatsApp-first conversational growth platform, empowering businesses to build deeper customer relationships and accelerate revenue growth.\nTrusted and loved by over 14,000 customers across 100+ countries, Wati has established itself as the premier choice for businesses leveraging WhatsApp and other messaging channels to connect with customers on their platform of choice.\nIn a world where real-time interactions drive growth, Wati's story is all about business growth through conversations. At Wati, we believe that every conversation matters, whether it's engaging a first-time prospect, nurturing a qualified lead, or deepening relationships with loyal clients. We transform these conversations into opportunities for building relationships, and strong relationships lead to increased revenue.\nOur Platform\nThe AI-native platform simplifies complex business operations by bringing all customer interactions under one intelligent roof. Designed for scalability and ease of use, our solution delivers a measurable ROI while adapting to businesses of all sizes, from emerging startups to established enterprises.\nOur Backing & Partnerships\nWati is proudly backed by world-class investors including Tiger Global, Sequoia Capital, DST Global, and Shopify. As a Premium-tier Partner of Meta, Google, and WhatsApp, we maintain the highest standards of integration and platform excellence.\nAbout The Role\nWe’re looking for a Full-Stack Software Engineer with a strong frontend focus (about 80% frontend, 20% backend) to help build our next-generation AI Customer Service Agent. You’ll develop key user-facing features, integrate external APIs, and improve overall performance while working closely with the product and design teams.\nJob Responsibilities\nParticipate in building the next-generation SaaS Customer Service Agent, responsible for the core architecture design and development of the AI Agent, ensuring seamless integration with existing products.\nEngage in full-stack development and AI Agent construction, optimizing key modules such as decision-making, task scheduling, and multimodal data processing for performance and stability.\nIntegrate and call various external APIs to connect internal and external data sources.\nContinuously optimize the Agent’s usability, stability, and effectiveness based on feedback and performance metrics, ensuring high performance and scalability.\nCollaborate closely with product, design, and business teams to gather requirements, design scalable solutions, and drive rapid iteration and deployment.\nRequirements\nBachelor’s degree or above in Computer Science or a related field, with 3-5 years of relevant work experience.\nStrong full-stack development capability, proficient in backend languages such as Python or Go, and good front-end experience including JavaScript / TypeScript and frameworks such as React, with clean and structured coding practices.\nFamiliarity with AI concepts and frameworks related to Agent development.\nStrong problem-solving and independent working skills, with excellent communication and teamwork abilities.\nPreferred Qualifications\nProficiency in using AI-driven development tools (e.g. Cursor) to improve front-end development efficiency.\nExperience in developing Agent systems or automation frameworks; experience in secondary development on Dify or Coze is a plus.\nFamiliarity with cloud platforms such as GCP or AWS.\nFluency in English for daily work; management experience is an advantage.\nWhat You’ll Gain\nOpportunity to use cutting-edge AI technology to build and scale real-time communication systems supporting global users.\nClose collaboration with senior engineers to rapidly grow your technical expertise.\nValuable experience in a fast-growing, international SaaS company.","description_format":"text","description_chars":3789,"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":[{"language":"English","level":"Advanced (C1)","optional":true}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Software","Marketing Automation","Conversational AI","Customer Support & Help Desk Software"],"lifecycle":[{"event":"open","at":"2026-09-11T02:26:26Z"},{"event":"open","at":"2026-09-25T22:48:27Z"}],"visa":[],"liveness":{"score":15,"band":"cold","label":"Long shot","p_open":1,"p_active":0.408,"p_room":0.36,"age_days":317,"expected_fill_days":174,"reasons":["conf:1","win:tail","crowd:"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/wati-io-full-stack-engineer-frontend-focus-saas","json_url":"https://alion.io/job/wati-io-full-stack-engineer-frontend-focus-saas.json","meta":{"generated_at":"2026-10-16T14:24:58Z","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":13949,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":19796},"rest":"https://alion.io/mcp/rest/get_company?id=19796"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fwati-io-full-stack-engineer-frontend-focus-saas"},{"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%2Fwati-io-full-stack-engineer-frontend-focus-saas"},{"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%2Fwati-io-full-stack-engineer-frontend-focus-saas"},{"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/wati-io-full-stack-engineer-frontend-focus-saas\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fwati-io-full-stack-engineer-frontend-focus-saas"}]}