Principal Solution Architect – AI Infrastructure and Cloud

Job Description IREN is a vertically integrated AI Cloud provider, delivering large-scale data centers and GPU clusters for AI training and inference. IREN’s platform is underpinned by its expansive portfolio of grid-connected land and power in renewable-rich regions across North America, Europe and APAC. With 100% renewable energy, we build, own and operate our data centers and take pride in being at the forefront of sustainable solutions for the ever-evolving applications of high-performance compute. We believe that human progress is invaluable, but it should be done in the right way – responsibly, sustainably and having a positive impact on the communities we operate in. As a Principal Solution Architect, you will sit at the tip of the spear for IREN's AI Cloud platform. You will partner directly with client CTOs, lead ML engineers, and infrastructure architects to design, benchmark, and optimize massively distributed training and inference clusters. You will convert complex customer requirements into optimized hardware/software configurations while creating reference architectures that set industry benchmarks. Job Requirements Basic Qualifications:Experience: 8–10+ years as a Solution Architect, Systems Engineer, or Infrastructure Architect handling enterprise cloud, HPC, or AI environments.AI & Hardware Mastery: Deep hands-on experience with high-density GPU nodes (NVIDIA HGX/DGX/Blackwell), Linux bare-metal virtualization, and RDMA networking (InfiniBand/RoCE v2).Orchestration & Storage: Proficiency with Kubernetes, container networking (CNI), and parallel file systems (Lustre, VAST, Ceph).Customer-Facing Execution: Proven ability to lead complex technical workshops, present to C-suite executives, and resolve high-stakes production bottlenecks. Preferred Qualifications:Practical experience tuning NCCL communication, GPUDirect Storage (GDS), or custom InfiniBand routing fabrics.Contributions to open-source cloud-native or AI orchestration projects (e.g., CNCF, Ray, Slurm, k0rdent).B.S. or M.S. in Computer Science, Computer Engineering, or quantitative discipline. Job Responsibilities Primary Technical Authority: Serve as the trusted lead technical architect for tier-1 enterprise customers migrating or scaling AI workloads on IREN’s infrastructure.Architectural Blueprinting: Design, document, and publish end-to-end reference architectures covering GPU clusters, InfiniBand/RoCE network topologies, Ceph/Lustre storage fabrics, and Kubernetes multi-tenancy.PoCs & Performance Benchmarking: Lead hands-on proof-of-concept deployments, conducting cluster benchmarking (e.g., NCCL-tests, Linpack, MLPerf, IO500) to validate customer SLA requirements.Workload Optimization: Partner with client engineering teams to profile and optimize distributed training jobs (Megatron-LM, DeepSpeed, PyTorch FSDP) and inference pipelines (vLLM, TensorRT-LLM).Product Feedback Conduit: Translate customer pain points, telemetry, and edge cases into structured platform requirements for IREN’s core Product and Operations teams. Job Benefits The IREN Package At IREN, we offer a highly competitive compensation package that includes base salary, annual performance incentives, and opportunities to build long-term wealth through equity programs. These offerings are part of our broader Total Rewards package, thoughtfully designed to support your health, well-being, and long-term success. Compensation Actual compensation will be determined based on factors such as experience, qualifications, and market data for the region.Total Compensation package may be inclusive of short-term and long-term incentives.Relocation (as applicable and based on successful candidate circumstances)Health & Wellness Medical, dental, and vision insurance coverage – 100% company paid for employees, 75% company paid coverage for dependentsCompany-paid life and disability insuranceVoluntary life, critical illness, and accident coverage availableHealth Savings Accounts (HSA) – when combined with the High-Deductible Health PlanEmployee Assistance Program and wellness resourcesFinancial Well-Being 401(k) retirement plan with company matchFinancial wellness tools and resourcesTime Off & Flexibility Paid Time Off (PTO) and paid holidaysFlexible work arrangementsGrowth & Development Opportunities for advancement and internal mobilityTraining and personal development opportunitiesLifestyle & Culture Company events and team-building activities We value diverse perspectives and believe that skills can be developed. If you’re passionate about this role, we want to hear from you — whether you meet every criteria or not. Your unique experiences might be exactly what we need! IE US Operations Inc., the employing entity and proud member of the IREN group is an equal opportunity employer that is committed to creating an inclusive workplace. We are committed to evaluating qualified applicants and do not discriminate against protected characteristics under applicable legislation. By applying for this position and submitting your resume and application materials, you consent to the processing of your personal information in accordance with our Job Applicant Privacy Statement available on our website at www.iren.com.