Job Title: Go Systems Engineer

Location: Pittsburgh, PA

Duration: Full Time Permanent Position

Key Responsibilities

• Designand optimize lowlevel systems in Go, focusing on performance, concurrency, and safety.
• Authoror contribute to compiler, runtime modules, or garbage collector in Go.
• Buildand maintain production-grade Raft or Paxos implementations.
• Developlock-free and wait-free algorithms for high-throughput systems.
• Engineercustom RPC protocols or messaging buses beyond standard frameworks.
• Delivercode that runs without OS dependencies, libc, or dynamic memory allocation.
• Designand implement bytecode VMs, memory-safe networking stacks, or kernel modules using Go and cgo.
• Workin sandboxed, air-gapped, and no-stdlib environments.
• Tracesyscalls from Go code through hardware interrupts to ensure deterministic behavior.

Required Qualifications

• 8 10years of experience in low-level systems programming.
• 6 8years of production experience with Go as the primary language.
• Demonstratedexperience with consensus protocols (Raft, Paxos).
• Strongexpertise in concurrency, memory models, and system safety guarantees.
• Provenability to work in constrained environments (no OS/no dynamic allocation).
• Experiencewith syscalls, atomic operations, and advanced synchronization mechanisms.
• Hands-onexperience implementing a custom Go scheduler.
• Expertisein memory-mapped IO, real-time kernel patches, and hardware-level profiling tools (perf, BPF, VTune).
• Maintaineror contributor to high-impact open-source projects (Kubernetes, Etcd, container runtimes).
• Deepfamiliarity with Go compiler internals (escape analysis, memory allocation behavior).