GPU DC East-West Network SRE Expert (SME)
Bitdeer is a NASDAQ-listed (BTDR) high-performance computing and Bitcoin mining company headquartered in Singapore. It provides end-to-end Bitcoin mining solutions (mining hardware like SEALMINER, Minerbase containers, cloud mining, hosting, and mining farm/data center operations) as well as AI Cloud services offering GPU compute (NVIDIA GB200 NVL72, B200, H200, H100) for AI training and deployment. Its customers range from individual and institutional Bitcoin miners to enterprises and developers needing scalable AI/ML compute infrastructure.
Funding history
Investors
About Bitdeer
Bitdeer Technologies Group is a NASDAQ-listed (ticker: BTDR) technology company headquartered in Singapore that describes itself as a "world-leading" high-performance computing platform and Bitcoin mining services provider. The company is vertically integrated across the value chain, spanning IC design and hardware manufacturing (its own SEALMINER ASIC miners and Minerbase mobile cooling containers), infrastructure construction and cloud mining, and artificial intelligence/high-performance computing. Bitdeer handles the full range of mining-related processes for its customers, including equipment procurement, transport logistics, datacenter design and construction, equipment management, and daily operations, and offers institutional services, a hash rate market, and a miner rights trading marketplace via its mobile apps (Bitdeer App and Minerplus App). Since 2013 Bitdeer has built more than 30 data centers globally and currently operates 9 large-scale data centers (including one of North America's largest) with roughly 3GW of diversified energy capacity and tens of exahashes of managed hash rate, with major operations in the United States, Bhutan, Norway, Canada, Malaysia, and Ethiopia. Since 2023 it has also been expanding a global AI infrastructure business (Bitdeer AI Cloud), powered by thousands of NVIDIA GPUs (including GB200 NVL72 and B200, with GB300 NVL72 and B300 planned), offering turnkey AI datacenter solutions and GPU cloud compute for AI training and deployment starting at around $2/hour. Bitdeer serves both individual/retail Bitcoin miners and institutional clients, as well as AI developers and enterprises seeking scalable, energy-efficient compute.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You operate InfiniBand and RoCEv2 fabrics carrying GPU communication across large data centers. You manage fabric topologies, subnet management, congestion control, NCCL tuning, firmware, telemetry, fault diagnosis, and vendor escalations while turning network incidents and mitigations into predictive models and automated workflows.
Requirements
- 5+ years in data center networking
- At least 3 years focused on InfiniBand or RoCE fabrics
- Experience deploying and operating Nvidia/Mellanox InfiniBand switches at scale
- Understanding of IB subnet management, partitioning, and QoS
- Experience deploying RoCEv2 with PFC, ECN, and DCQCN
- Proficiency with UFM or equivalent IB fabric management tools
- Knowledge of 400G/800G optics, cabling standards, and structured cabling
- Experience diagnosing IB/RoCE issues with ibdiagnet, perfquery, and ibstat
- Understanding of NCCL and GPU communication topology
- Experience building dashboards or alerts on RDMA counters, or ability to define fabric-health model features
- Runbook-as-code mindset
Responsibilities
- Operate InfiniBand fat-tree, rail-optimized, and dragonfly fabrics
- Operate RoCEv2 networks across Nvidia, Arista, and Cisco platforms
- Manage IB monitoring, diagnostics, and subnet management with UFM
- Monitor and tune IB and RoCE performance
- Configure adaptive routing, DCQCN, ECN, and traffic isolation
- Tune NCCL topology detection, ring and tree algorithms, and GDR
- Manage switch and HCA firmware lifecycles
- Diagnose link flaps, symbol errors, packet drops, routing anomalies, and credit stalls
- Coordinate vendor support escalations, bug reports, and RMAs
- Integrate IB/RoCE telemetry into the collection pipeline
- Define link and straggler predictors
- Convert incidents and mitigations into labeled examples and automated workflows