Principal Solution Architect - AI Infrastructure and Cloud

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., * 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.

• 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.

Pulled from the full job description Health insurance 401(k) matching Paid time off Vision insurance Health savings account Dental insurance Life insurance, 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., * 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 dependents
• Company-paid life and disability insurance
• Voluntary life, critical illness, and accident coverage available
• Health Savings Accounts (HSA) - when combined with the High-Deductible Health Plan
• Employee Assistance Program and wellness resources

Financial Well-Being

• 401(k) retirement plan with company match
• Financial wellness tools and resources

Time Off & Flexibility

• Paid Time Off (PTO) and paid holidays
• Flexible work arrangements

Growth & Development

• Opportunities for advancement and internal mobility
• Training and personal development opportunities

Lifestyle & 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.