{"id":2192274,"url":"https://alion.io/job/nscale-principal-solutions-architect","title":"Principal Solutions Architect","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":92,"open_postings":22,"ghost_share":0,"stale_share":0.136,"repost_share":0,"time_to_fill_p50_days":69,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Solutions","role_family":"Solutions","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":["United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":91000,"max_usd":168000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":50},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"Ansible","optional":false},{"name":"DeepSpeed","optional":false},{"name":"Grafana","optional":false},{"name":"HPC","optional":false},{"name":"InfiniBand","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"Megatron-LM","optional":false},{"name":"NCCL","optional":false},{"name":"NVLink","optional":false},{"name":"Prometheus","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"SLURM","optional":false},{"name":"Terraform","optional":false}],"status":"live","first_seen_at":"2026-10-09T15:14:51Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-12T15:25:36Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"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.\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\nWe are hiring a Principal Solution Architect to design and deliver end-to-end GPU infrastructure solutions that power some of the world's most demanding AI workloads.\nThis is a highly technical, customer-facing role at the intersection of AI infrastructure, solution architecture, and engineering. You will translate complex customer requirements into scalable, high-performance infrastructure designs spanning GPU compute, networking, storage, data centre systems, and orchestration platforms.\nYou'll own solution designs end-to-end, from bare-metal GPU fabrics and high-performance networking through to the orchestration layers customers use to run their AI workloads. You'll also leverage modern AI tooling and automation to accelerate solution design, architecture validation, and deployment readiness.\nWorking closely with customers and Nscale's Engineering, Infrastructure, and Deployment teams, you'll act as a trusted technical advisor, ensuring our solutions deliver exceptional performance, reliability, and scalability.\nWhat you'll be doing\nGPU Infrastructure & Solution Architecture\nDesign end-to-end GPU infrastructure solutions tailored to customer requirements and AI workloads.\n\nArchitect GPU cluster configurations, including rack layouts, power and cooling considerations, and NVLink/NVSwitch domains.\n\nDesign high-performance network architectures, including leaf/spine, rail-optimised fabrics, InfiniBand, Ethernet, RoCE, and GPUDirect RDMA.\n\nDefine storage architectures and data pipelines supporting large-scale AI training and inference workloads.\n\nDesign infrastructure and orchestration layers, including bare-metal provisioning, Kubernetes, Slurm, and multi-tenant scheduling.\n\nArchitect control plane and management systems covering monitoring, alerting, and cluster lifecycle management.\n\nCustomer Engagement & Technical Advisory\nEngage directly with customers to understand their technical requirements, workloads, and infrastructure challenges.\n\nTranslate customer needs into detailed technical architectures, specifications, and reference designs.\n\nAct as a trusted technical advisor, guiding customers through infrastructure design decisions and technical trade-offs.\n\nCollaborate with internal Engineering teams to ensure proposed solutions are technically feasible, scalable, and aligned with Nscale's infrastructure capabilities.\n\nSupport deployment planning and ensure solutions meet agreed performance, reliability, and operational requirements.\n\nGPU Performance, Testing & Validation\nDefine and execute infrastructure acceptance and validation plans for GPU clusters.\n\nLead performance benchmarking using NCCL collectives and other GPU performance testing tools.\n\nValidate network fabrics, GPU interconnects, and cluster configurations to ensure optimal performance.\n\nTroubleshoot multi-node GPU performance issues, including degraded links, fabric misconfigurations, stragglers, and performance regressions.\n\nEstablish performance acceptance criteria and support GPU infrastructure sign-off before production deployment.\n\nAI-Driven Design & Infrastructure Automation\nLeverage AI tooling to automate and accelerate infrastructure design and engineering workflows.\n\nDevelop automated approaches for generating and iterating on architectures, bills of materials (BoMs), network topologies, and deployment artefacts.\n\nApply LLM-assisted engineering, code generation, and agentic workflows to improve design efficiency and accuracy.\n\nUse Infrastructure-as-Code and scripting tools such as Terraform, Ansible, Python, or Go to streamline infrastructure design and deployment.\n\nIdentify opportunities to improve repeatability, consistency, and scalability across solution architecture processes.\n\nStorage, Reliability & Operational Readiness\nDesign storage solutions optimised for AI workloads, including parallel and distributed file systems.\n\nConsider data throughput, checkpointing, and storage performance requirements when designing GPU clusters.\n\nIncorporate reliability, availability, and serviceability principles into infrastructure architectures.\n\nDefine monitoring, health checks, observability, and diagnostic requirements for production environments.\n\nPartner with Infrastructure and Operations teams to ensure successful deployment, validation, and ongoing operational readiness.\n\nTechnology Research & Continuous Improvement\nStay current with emerging GPU technologies, networking architectures, storage platforms, and AI infrastructure innovations.\n\nResearch and evaluate new technologies to inform Nscale's future solution architectures.\n\nContribute to the development of reusable reference architectures, engineering standards, and technical best practices.\n\nShare technical knowledge and expertise across Engineering, Product, and customer-facing teams.\n\nAbout You\nRequired Experience\n10+ years of relevant experience in solution architecture, infrastructure engineering, high-performance computing, or large-scale data centre environments.\n\nStrong experience designing and delivering large-scale GPU infrastructure and AI/HPC solutions.\n\nDeep technical understanding across the full GPU infrastructure stack, from bare-metal compute and networking through to orchestration and workload management.\n\nProven ability to translate complex customer requirements into detailed technical architectures and implementation plans.\n\nStrong analytical and problem-solving skills, with the ability to troubleshoot complex infrastructure and performance challenges.\n\nExcellent communication skills, with the ability to explain complex technical concepts to both technical and non-technical audiences.\n\nGPU Infrastructure & Networking\nStrong understanding of GPU architectures, including NVLink/NVSwitch, PCIe, memory bandwidth, and GPUDirect RDMA.\n\nDeep expertise in high-performance networking, including InfiniBand, RoCE, congestion control, leaf/spine architectures, and rail-optimised fabric design.\n\nExperience with bare-metal infrastructure provisioning, including PXE/iPXE, firmware management, and BMC technologies.\n\nHands-on experience with Kubernetes and Slurm in production environments.\n\nUnderstanding of how network topology and GPU interconnect design impact distributed AI workload performance.\n\nGPU Performance & Validation\nHands-on experience with NCCL and collective communication benchmarking, including nccl-tests.\n\nFamiliarity with NVIDIA performance validation and diagnostic tooling, including Fabric Manager, DCGM, nvidia-smi, and nvbandwidthtest.\n\nExperience with InfiniBand and Ethernet fabric diagnostics, including tools such as ibdiagnet.\n\nProven ability to validate and troubleshoot multi-node GPU clusters, identifying performance bottlenecks, degraded links, fabric issues, and configuration problems.\n\nAutomation & Software Engineering\nStrong scripting and automation skills using Python, Go, or similar languages.\n\nExperience with Infrastructure-as-Code tools such as Terraform and Ansible.\n\nDemonstrated ability to automate engineering and design workflows using modern AI tooling.\n\nFamiliarity with LLM-assisted development, code generation, and agentic automation pipelines.\n\nStorage, AI Workloads & Reliability\nExperience with storage technologies supporting AI workloads, including Lustre, GPFS, WEKA, BeeGFS, or large-scale NFS.\n\nUnderstanding of distributed training and inference infrastructure requirements.\n\nFamiliarity with AI/ML frameworks such as PyTorch, DeepSpeed, or Megatron-style training stacks.\n\nKnowledge of checkpointing, data pipeline design, and high-throughput storage architectures.\n\nUnderstanding of GPU cluster reliability, burn-in testing, health checks, and observability tooling such as Prometheus, Grafana, and DCGM exporters.\n\nPreferred Experience & Personal Attributes\nPrevious experience in a customer-facing Solution Architecture, Pre-Sales Engineering, or Technical Advisory role.\n\nBackground in hyperscale cloud, GPU infrastructure, HPC, or AI infrastructure environments.\n\nStrong customer-first mindset with the ability to build trusted relationships.\n\nComfortable operating in fast-paced, ambiguous environments and taking ownership of complex technical challenges.\n\nCurious, proactive, and passionate about emerging technologies and AI infrastructure innovation.\n\nCollaborative approach with the ability to influence technical decisions across multiple engineering disciplines.\n\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 one of the fastest-growing AI infrastructure companies - your opportunity to design and deliver cutting-edge GPU infrastructure powering the next generation of AI.\nExpect a dynamic progression plan tailored to your ambitions. Grow by solving complex technical challenges, influencing infrastructure architecture, working with leading AI technologies, and shaping the future of Nscale's GPU cloud platform.\nHuman-First Flexibility: We treat you as humans first. Our flexible workplace trusts Nscalers to deliver, giving you the autonomy to shape your day around life's moments.\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.\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":11070,"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","Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Data Centers & Colocation","AI Compute & Inference"],"lifecycle":[{"event":"open","at":"2026-10-09T18:19:11Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Skilled Worker, Senior or Specialist Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker; Global Business Mobility: Senior or Specialist Worker","cap_exempt":false,"checked_at":"2026-10-10T06:21:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":69,"reasons":["conf:3","velocity","win:early","comp:brand"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/nscale-principal-solutions-architect","json_url":"https://alion.io/job/nscale-principal-solutions-architect.json","meta":{"generated_at":"2026-10-12T17:14:11Z","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":27557,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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-solutions-architect"},{"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-solutions-architect"},{"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-solutions-architect"},{"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-solutions-architect\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnscale-principal-solutions-architect"}]}