Machine Learning Engineer - Distributed ML Systems

OVERVIEW Pluralis Research https://pluralis.ai/ carries out foundational research on Protocol Learning: multi-participant training of foundation models where no single participant has, or can ever obtain, a full copy of the model. The purpose of Protocol Learning is to facilitate the creation of community-trained and community-owned frontier models with self-sustaining economics. We're looking for Senior/Staff engineers with 5+ years of experience in distributed systems and ML large-scale training. You'll be implementing a novel substrate for training distributed ML models that work under consumer grade internet connection. RESPONSIBILITIES DISTRIBUTED TRAINING ARCHITECTURE & OPTIMIZATION - Design and implement large-scale distributed training systems optimized for heterogeneous hardware operating under low-bandwidth, high-latency conditions. - Develop and optimize model-parallel training strategies (data, tensor, pipeline parallelism) with custom sharding techniques that minimize communication overhead. - Optimize GPU utilization, memory efficiency, and compute performance across distributed nodes. - Implement robust checkpointing, state synchronization, and recovery mechanisms for long-running, fault-prone training jobs. - Build monitoring and metrics systems to track training progress, model quality, and system bottlenecks. DECENTRALIZED NETWORKING & RESILIENCE - Architect resilient training systems where nodes can fail, networks can partition, and participants can dynamically join or leave. - Design and optimize peer-to-peer topologies for decentralized coordination across non-co-located nodes. - Implement NAT traversal, peer discovery, dynamic routing, and connection lifecycle management. - Profile and optimize communication patterns to reduce latency and bandwidth overhead in multi-participant environments. WHAT YOU’LL BRING - Strong experience building and operating distributed systems in production. - Hands-on expertise with distributed training frameworks (FSDP, DeepSpeed, Megatron, or similar). - Deep understanding of model parallelism (data, tensor, pipeline parallelism). - Expert-level Python with production experience (concurrency, error handling, retry logic, clean architecture). - Strong networking fundamentals: P2P systems, gRPC, routing, NAT traversal, distributed coordination. - Experience optimizing GPU workloads, memory management, and large-scale compute efficiency. WHAT WE OFFER - Equity-heavy compensation with meaningful ownership in a mission-driven company - Competitive base salary for senior engineering roles in Australia - Visa sponsorship available for exceptional candidates - Remote-first with optional access to our Melbourne hub - World-class team — team mates were previously at at Google, Amazon, Microsoft, and leading startups Backed by Union Square Ventures https://www.usv.com/ and other tier-1 investors, we're a world-class, deeply technical team of ML researchers and engineers. Pluralis is unapologetically ideological. We view the world as a better place if we are able to implement what we are attempting, and Protocol Learning as the only plausible approach to preventing a handful of massive corporations monopolising model development, access and release, and achieving massive economic capture. If this resonates, please apply.