{"id":2243421,"url":"https://alion.io/job/nebius-senior-network-engineer","title":"Senior Network Engineer","company":{"id":6364,"name":"Nebius","domain":"nebius.com","url":"https://alion.io/company/nebius","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Networking","role_family":"Networking","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["United States"],"countries":["US"],"hiring_countries":["US"],"hiring_countries_total":1,"salary":{"min":125000,"max":180000,"currency":"USD","period":"year","gross":null,"usd_annual":180000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BGP","optional":false},{"name":"MPLS","optional":false},{"name":"InfiniBand","optional":true},{"name":"Linux","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-03-23T21:16:21Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-11T16:04:46Z","board_verified":true,"closed_at":null,"days_open":201,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":201},"description":"About Nebius:\nNebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.\nBuilt by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.\nListed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.\n*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" data-turn-id=\"request-WEB:15eea77a-430d-424c-853f-ddcbc7d37ef3-17\" data-testid=\"conversation-turn-8\" data-scroll-anchor=\"true\" data-turn=\"assistant\">\nThe role:\nWe are looking for a Senior Network Engineer to design, build, and operate large-scale, high-performance data center networks supporting GPU-dense AI workloads. You will take end-to-end ownership of service provider-grade and CLOS-based network infrastructure, ensuring reliability, scalability, and predictable performance across distributed environments. This role requires deep expertise in routing, switching, and modern data center fabrics, with a strong focus on production operations, root cause analysis, and continuous improvement of network systems.\nYour responsibilities will include:\nDesign and evolve scalable data center network architectures (CLOS/leaf-spine) for high-throughput, low-latency environments\n\nOwn end-to-end deployment and lifecycle management of routing and switching infrastructure across production environments\n\nDevelop and maintain network design documentation, standards, and operational procedures\n\nPlan, execute, and validate network infrastructure testing, including vendor evaluation and benchmarking\n\nDiagnose and resolve complex network issues across the TCP/IPv4/v6 stack in large-scale distributed environments\n\nOptimize traffic engineering, ECMP, and load balancing strategies to ensure efficient utilization of network resources\n\nImplement and operate MPLS-based technologies, including L3 VPNs and segment routing (SR-MPLS, SRv6)\n\nCollaborate with hardware, systems, and software teams to integrate networking with compute and storage infrastructure\n\nAutomate network operations and workflows to improve reliability, scalability, and operational efficiency\n\nEnsure high availability and performance of production networks through proactive monitoring and continuous improvement\n\nWhat we expect you to have:\nExpert-level knowledge (CCIE/JNCIE or equivalent) in MPLS, routing, and switching for service provider and data center networks\n\nStrong experience with Ethernet switching, VXLAN, and modern cloud overlay networking technologies\n\nDeep expertise in routing protocols including BGP and IS-IS\n\nHands-on experience with segment routing (SR-MPLS, SRv6), L3 MPLS VPNs, and ECMP-based traffic balancing\n\nProven experience designing and documenting large-scale network architectures\n\nExperience developing and executing network testing strategies and validating vendor solutions\n\nStrong troubleshooting skills across the TCP/IPv4/v6 stack in CLOS-based data center environments\n\nSolid understanding of network hardware architecture, QoS mechanisms, and packet processing pipelines\n\nHands-on experience with network equipment from vendors such as Juniper, Arista, Huawei, and Mellanox\n\nWorking proficiency in English\n\nIt will be an added bonus if you have:\nWorking proficiency in an additional European language\n\nExperience with public cloud networking and GPU/InfiniBand environments\n\nKnowledge of software-defined networking (SDN) overlays in cloud environments\n\nProficiency in Python, Go, or other programming languages in Linux environments\n\nExperience using programming languages for network automation and tooling\n\nWorking conditions:\nRemote work within the United States\n\nWork closely with globally distributed infrastructure and engineering teams\n\nParticipation in on-call rotations to support production environments\n\nKey employee benefits:\nComprehensive health insurance\n\n401(k) plan with company contribution\n\nPaid time off and public holidays\n\nFlexible working hours\n\nProfessional development and certification support\n\nCompensation:\n$125,000 - $180,000 USD per year, depending on experience and qualifications\n\nBenefits & Perks:\nCompetitive compensation\nCareer growth and learning opportunities\nFlexibility and ownership\nCollaborative and innovative culture\nOpportunity to work on impactful AI projects\nInternational environment and talented teams\nWhat's it like to work at Nebius:\nFast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI \nEqual Opportunity Statement:\nNebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law.\nApplicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire. \nIf you need accommodations during the application process, please let us know.","description_format":"text","description_chars":5722,"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":false}]},"benefits":["Flexible schedule","Health insurance","Professional development"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Commerce","Education","Data Centers & Colocation"],"lifecycle":[{"event":"open","at":"2026-10-11T01:05:42Z"}],"visa":[],"liveness":{"score":4,"band":"cold","label":"Long shot","p_open":1,"p_active":0.155,"p_room":0.28,"age_days":201,"expected_fill_days":28,"reasons":["conf:2","win:tail","crowd:brand"],"computed_at":"2026-10-11T18:53:53Z"},"pay":{"stated_usd_annual":180000,"is_top_pay":true},"html_url":"https://alion.io/job/nebius-senior-network-engineer","json_url":"https://alion.io/job/nebius-senior-network-engineer.json","meta":{"generated_at":"2026-10-11T18:53:53Z","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":5147,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-12T00:00:00Z"}},"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":6364},"rest":"https://alion.io/mcp/rest/get_company?id=6364"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnebius-senior-network-engineer"},{"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%2Fnebius-senior-network-engineer"},{"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%2Fnebius-senior-network-engineer"},{"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/nebius-senior-network-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnebius-senior-network-engineer"}]}