{"id":1270264,"url":"https://alion.io/job/bytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2","title":"Software Development Engineer Graduate (SDN Traffic Intelligence & Control) - 2026 Start (PhD)","company":{"id":13,"name":"ByteDance","domain":"bytedance.com","url":"https://alion.io/company/bytedance","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Feishu","truth_index":{"grade":"A","score":89,"open_postings":9938,"ghost_share":0.107,"stale_share":0,"repost_share":0.003,"time_to_fill_p50_days":314,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Backend","role_family":"Backend","seniority":"junior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seattle, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":145000,"max_usd":299000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1118},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"TCP/IP","optional":false},{"name":"Linux","optional":true}],"status":"live","first_seen_at":"2025-05-27T23:27:09Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-10-30T03:10:17Z","board_verified":true,"closed_at":null,"days_open":520,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":519},"description":"岗位职责 / Responsibilities\nTeam Introduction\nByteDance Networking brings together innovative ideas and technologies from network architecture, software defined networking (SDN), network virtualization, switch software and hardware co-design, and high-speed networking, to create hyperscale data-center networking solutions that power several of the most popular apps of the world such as Douyin and TikTok which serve hundreds of millions of users around the globe.\nWe are looking for candidates with strong networking background and solid software development skills, who have a deep understanding in routing protocols and/or can utilize container techniques in emulating production networks to help operators maintain Bytedance's networking infrastructure safely and confidently.\nSuccessful candidates must be able to commit between January 5,2026 to December 14, 2026\nApplications will be reviewed on a rolling basis - we encourage you to apply early. Please state your availability clearly in your resume (Start date, End date).\nCandidates can apply for a maximum of TWO positions and will be considered for jobs in the order you applied for. The application limit is applicable to ByteDance and its affiliates' jobs globally.\nResponsibilities\n- Build software control systems to manage the network resources, especially the long haul bandwidth;\n- Build host/gateway end-side network traffic monitoring, analysis and control capabilities;\n- Working with network operation and planning teams to support bandwidth and performance requirements for upper-layer computing, storage, recommendation and other businesses, and provide fault analysis and resolving capabilities.\n任职要求 / Requirements\nMinimum Qualifications\n- Individuals who are completing or have recently completed a PhD degree in Software Development, Computer Science, Computer Engineering, or a related technical discipline.\n- Proficiency in at least one programming language, such as Go, C++, or Python, with a strong foundation in designing and developing distributed systems;\n- In-depth understanding of networking protocols and the TCP/IP stack;\n- Practical or research experience in the areas of bandwidth management or distributed rate limiting systems/algorithms will be considered particularly favorable.\nPreferred Qualifications\n- In-depth understanding of networking protocols and the TCP/IP stack; familiarity with Linux operating systems and networking functionalities is highly advantageous.\n- Practical or research experience in the areas of bandwidth management or distributed rate limiting systems/algorithms will be considered particularly favorable.","description_format":"text","description_chars":2628,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Enterprise Networks","Advertising","Recommendation Systems","Digital Media"],"lifecycle":[{"event":"open","at":"2026-09-25T23:50:52Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 747 · green card filings: 451","filings_12m":747,"filings_prev_12m":1302,"green_card_filings_12m":451,"median_offered_wage_usd":210559,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":356}],"liveness":{"score":24,"band":"cold","label":"Long shot","p_open":1,"p_active":0.656,"p_room":0.36,"age_days":519,"expected_fill_days":314,"reasons":["conf:0","velocity","win:tail","crowd:junior,brand"],"computed_at":"2026-10-29T05:49:05Z"},"pay":null,"html_url":"https://alion.io/job/bytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2","json_url":"https://alion.io/job/bytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2.json","meta":{"generated_at":"2026-10-30T03:32:28Z","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":4710,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}},"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":13},"rest":"https://alion.io/mcp/rest/get_company?id=13"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2"},{"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%2Fbytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2"},{"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%2Fbytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2"},{"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/bytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbytedance-software-development-engineer-graduate-sdn-traffic-intelligence-control-2026-start-phd-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":1270264}},{"tool":"search_jobs","arguments":{"company":"bytedance.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":1270264},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); 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