{"id":649557,"url":"https://alion.io/job/nscale-principal-network-engineer-3","title":"Principal Network Engineer","company":{"id":48155,"name":"Nscale","domain":"nscale.com","url":"https://alion.io/company/nscale","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":91,"open_postings":35,"ghost_share":0,"stale_share":0.143,"repost_share":0,"time_to_fill_p50_days":63,"computed_at":"2026-10-05T05:45:15Z"}},"role":"Networking","role_family":"Networking","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["New York, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":147000,"max_usd":319000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":94},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BGP","optional":false},{"name":"HPC","optional":false},{"name":"InfiniBand","optional":false},{"name":"OSPF","optional":false},{"name":"Edge AI","optional":true}],"status":"live","first_seen_at":"2026-08-10T20:55:44Z","employer_posted_date":"2026-09-21","last_verified_at":"2026-10-06T00:48:58Z","board_verified":true,"closed_at":null,"days_open":56,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":56},"description":"About Nscale\nNscale is the GPU cloud engineered for AI. We provide cost-effective, high-performance infrastructure for AI start-ups and large enterprise customers. Nscale enables AI-focused companies to achieve superior results by reducing the complexity of AI development. Our GPU cloud bolsters technical capabilities and directly supports strategic business outcomes, including cost management, rapid innovation, and environmental responsibility.\n\nWe thrive on a culture of relentless innovation, ownership, and accountability, where every team member takes pride in their work and drives it with excellence and urgency. As an Nscaler, you’ll build trust through openness and transparency, where everyone is inspired to do their best work. If you join our team, you’ll be contributing to building the technology that powers the future.\nAbout The Role\nThe Network Operations and Engineering teams at Nscale operate some of the most demanding networking environments in the industry, supporting tightly coupled GPU clusters where network performance directly impacts customer outcomes.\nWe’re looking for a Principal Network Engineer - AI Infrastructure to provide technical leadership across Nscale’s high-speed networking domain.\nThis role is focused on owning the reliability, scalability, and long-term evolution of our Infiniband and RDMA-based network fabrics. You will operate as a technical authority, influencing architecture, standards, and operational practices across teams while tackling the most complex network challenges in the platform.\nWhat You'll Be Doing\nOwning the technical direction and operational strategy for Nscale’s AI interconnect networks\nDesigning, reviewing, and evolving large-scale Infiniband and RoCE fabric architectures to support future growth and workload demands\nActing as the senior escalation point for the most complex network incidents, guiding deep technical investigations and systemic fixes\nDriving cross-team initiatives to improve fabric reliability, performance predictability, and operational maturity\nDefining standards for hardware configuration, congestion control, routing, firmware lifecycle management, and change safety\nPartnering with SRE, Compute Platform, and Network Architecture teams to influence end-to-end system design\nMentoring senior and mid-level network engineers, raising the bar for operational rigor and technical excellence\nDriving measurable improvements in uptime, latency consistency, capacity efficiency, and incident reduction\nAbout You (Skills / Qualifications)\n10+ years of experience in network engineering, with deep focus on HPC, AI, or hyperscale data centre networking\nExpert-level operational and architectural experience with Infiniband and/or large-scale RoCE fabrics\nDeep understanding of RDMA internals, congestion management, and fabric-level failure modes\nStrong expertise in modern data centre routing and control planes (BGP, OSPF, ECMP)\nProven ability to debug and resolve cross-layer issues spanning hardware, firmware, kernel, and application communication libraries\nDemonstrated ability to lead complex technical initiatives across teams without direct authority\nA systems-level mindset, balancing performance, reliability, scalability, and operational cost\nNice to Have\nExtensive experience with NVIDIA/Mellanox networking platforms in production AI or HPC environments\nDeep familiarity with distributed training frameworks and GPU communication patterns\nExperience designing network observability systems for high-cardinality, high-throughput environments\nPrior experience influencing platform or infrastructure strategy at scale\nWhat We Can Offer You\nAt Nscale, you'll find a collaborative, supportive, and innovative environment where your contributions spark real impact. We're building something extraordinary, and we want you at the core.\nHighly competitive package (base + equity) with reviews every 12 months. \nJoin the fastest-growing tech startup, your chance to push boundaries, collaborate with brilliant minds, and make your mark on cutting-edge AI. \nExpect a dynamic progression plan tailored to your ambitions. Grow by trying new things, leading, challenging the status quo, and owning your impact, always with our full support. \nEqual Opportunities Statement\nWe strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio-economic backgrounds.\nIf there’s anything we can do to accommodate your specific situation, please let us know.\nThe responsibilities outlined in this job description are not exhaustive and are intended to provide a general overview of the position. The employee may be required to perform additional duties, tasks, and responsibilities as assigned by management, consistent with the skills and qualifications required for the role.\nFor information on how Nscale handles candidate personal data, please see our Employee & Candidate Privacy Notice: Here.\nNscale does not accept unsolicited candidate submissions from recruitment agencies.","description_format":"text","description_chars":5086,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Data Centers & Colocation","AI Compute & Inference"],"lifecycle":[{"event":"open","at":"2026-09-10T20:22:42Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 10","filings_12m":10,"filings_prev_12m":0,"green_card_filings_12m":0,"median_offered_wage_usd":198500,"route":null,"cap_exempt":false,"checked_at":"2026-10-03T21:08:04+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":4}],"liveness":{"score":59,"band":"ok","label":"Likely open","p_open":1,"p_active":0.783,"p_room":0.75,"age_days":55,"expected_fill_days":63,"reasons":["conf:1","velocity","win:late","comp:brand"],"computed_at":"2026-10-05T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/nscale-principal-network-engineer-3","json_url":"https://alion.io/job/nscale-principal-network-engineer-3.json","meta":{"generated_at":"2026-10-06T02:05:45Z","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","counted_by":"address","units_charged":1,"used_today":3094,"day_limit":5000,"remaining_today":1906,"minute_limit":60,"resets_at":"2026-10-07T00:00:00Z"}},"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":48155},"rest":"https://alion.io/mcp/rest/get_company?id=48155"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnscale-principal-network-engineer-3"},{"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%2Fnscale-principal-network-engineer-3"},{"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%2Fnscale-principal-network-engineer-3"},{"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/nscale-principal-network-engineer-3\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnscale-principal-network-engineer-3"}]}