{"id":1256497,"url":"https://alion.io/job/tiktok-backend-engineer-tiktok-account","title":"Backend Engineer - TikTok Account","company":{"id":47,"name":"TikTok","domain":"tiktok.com","url":"https://alion.io/company/tiktok","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Feishu","truth_index":{"grade":"B","score":83,"open_postings":3443,"ghost_share":0.196,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":98,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Singapore"],"countries":["SG"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":58000,"max_usd":162000,"period":"year","method":"role_country_seniority_unknown","sample_n":318},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Go","optional":false},{"name":"Java","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2024-04-18T02:17:22Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-10-27T20:45:17Z","board_verified":true,"closed_at":null,"days_open":922,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":922},"description":"岗位职责 / Responsibilities\nWe own TikTok’s core account, device, session, and user data systems, serving billions of users globally with built-in security requirements one of the most scalable and high-performance systems in the industry (100 millions QPS).\nHere, you’ll take on several defining challenges:\nExtreme Performance: Optimize distributed architecture, storage engines, and traffic routing to ensure rock-solid stability under massive global scale.\nSecurity by Design: Embed security into every layer of the system, from architecture to code, to combat fraud and protect billions of user accounts.\nWe thrive on solving hard problems-whether it’s designing high-performance auth protocols, building risk control systems, or breaking through distributed consistency bottlenecks. Every line of code you write will directly impact hundreds of millions of users.\nAccount team is highly engineering-driven, we want to foster a culture of innovation, technical depth, and elegant problem-solving. If you’re excited about all of these, it's the right place.\nWe also actively leverage cutting-edge AI technologies to solve complex engineering challenges in performance optimization, system reliability, security, and beyond.\nResponsibilities:\n1. Design, test, deploy and maintain backend services and core components of distributed systems.\n2. Conduct system designs and code reviews.\n3. Collaborate with other engineering teams to elevate technology and consistently apply best practices.\n4. Constantly evaluate and improve efficiency, scalability, and stability of our systems.\n任职要求 / Requirements\nMinimum Qualifications:\n1. BS degree in Computer Science, Electrical Engineering, Computer Engineering or related areas.\n2. 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