Member of Technical Staff (Infrastructure) job opportunity at MLabs.

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Date2026-02-18T07:14:34.175Z bot
MLabs Member of Technical Staff (Infrastructure)
Experience: 5-years
Pattern: full-time
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loacation Toronto, Canada
loacation Toronto....Canada

Member of Technical Staff (Infrastructure) On-site | Full-time Compensation: $140K-$200K (CA$190K – CA$280K) We are building the open-source browser infrastructure that powers the next generation of AI agents. With over 6,000 GitHub stars and millions of sessions served monthly, our platform grew 50x in 2025 alone. We provide the "eyes and ears" for AI, allowing developers to ship products that interact with the web seamlessly via our API. As one of our first ten employees, you will join a high-performance, talent-dense team of four. We are backed by world-class investors and focused on solving the hardest problems in distributed systems, from kernel-level debugging to global VM orchestration. The Role As a Member of Technical Staff, you will build and scale the distributed systems that power millions of browser sessions. Browsers are notoriously resource-heavy; your mission is to make them fast, ephemeral, and globally accessible. You will work across the stack, but your primary focus will be on the core infrastructure that ensures sub-second startup times and robust multi-tenant isolation. Key Responsibilities: Global Orchestration: Designing and maintaining VM orchestration (using Nomad, Firecracker, and Kubernetes) with intelligent scheduling and sub-second cold starts. Systems Engineering: Implementing kernel-level observability (eBPF) and optimizing resource isolation using cgroup v2 and NUMA scheduling. Networking: Building high-performance networking layers, including anycast routing and cross-region failover. Infrastructure as Code: Managing multi-cloud deployments (AWS/GCP/Azure) and customer VPCs using Pulumi. Product Ownership: Building developer primitives for reliable browser automation and contributing to our open-source ecosystem. Experience: 5+ years of experience operating production-scale distributed systems handling thousands of requests per second. Linux Internals: Deep knowledge of the Linux kernel, syscall optimization, and eBPF. Security & Isolation: A "battle-tested" understanding of multi-tenancy, resource limits, and security boundaries. Network Fundamentals: Ability to debug complex production issues like packet loss or routing failures at the protocol level. Execution: A bias for action and the autonomy to own outcomes from architecture to deployment. Preferred Qualifications Production experience with VM hypervisors (Firecracker, QEMU, or KVM). Experience building custom orchestration layers rather than just consuming existing APIs. Contributions to Linux kernel, hypervisors, or major open-source infrastructure projects. Previous experience as a founder or an early engineer at a high-growth infrastructure startup. The Tech Infrastructure: Kubernetes, Nomad, Firecracker VMs, Pulumi, Go, Docker Backend: Rust, Node.js, Fastify, NATS, PostgreSQL, Redis Frontend: TypeScript, React, Vite Debugging: Grafana, Loki, Axiom, distributed tracing, eBPF, kernel tracing Mostly TypeScript for cohesion. Rust/Go for hot paths. Linux internals everywhere.

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