Modal Labs • 📍 US / Americas Remote •
$190k - $260k USD
Optimize Linux cgroups v2 isolation, FUSE page-cache prefetching, and snapshot memory restoration across thousands of H100 nodes.
#ebpf • $202k-$278k USD Base
eBPF in Production Rust: Architecture & Open Roles
Sandboxed Linux kernel bytecode for XDP packet filtering & tracing
1. Why Teams Deploy eBPF
eBPF allows systems engineers to run sandboxed, verifier-checked bytecode directly inside the Linux kernel without loading risky kernel modules. In Rust infrastructure, eBPF powers two huge domains: high-speed L3/L4 packet processing via XDP (eXpress Data Path) at Cloudflare and Fly.io, and zero-instrumentation continuous profiling and security observability at Datadog, Polar Signals, and Isovalent.
2. eBPF Kernel & Memory Internals
Before an eBPF program attaches to a `kprobe`, `tracepoint`, `cgroup`, or network driver XDP hook, the in-kernel verifier analyzes every possible branch path to guarantee bounded loops, valid pointer arithmetic, and safe map lookups. User-space Rust daemons communicate with kernel eBPF programs asynchronously via `BPF_MAP_TYPE_RINGBUF` ring buffers, per-CPU hash maps, and sockmap socket redirection.
3. eBPF Interview & Hiring Bar
Kernel and networking teams pay $190k to $295k for engineers who can write verifier-compliant eBPF dataplanes, debug packet drops with `bpftool`, and build low-overhead user-space control agents in Rust.
Open eBPF Engineering Positions (5)
CoreWeave • 📍 US Remote / East Coast •
$215k - $295k USD
Develop low-overhead Rust telemetry agents, automated topology-aware slurm/Kubernetes job placement plugins, and RDMA congestion diagnostics.
AWS (Serverless Compute) • 📍 US / EU Remote •
$195k - $275k USD
Optimize virtio ring buffer throughput over `io_uring`, harden guest-to-host memory isolation, and reduce microVM snapshot restore tail latency.