C++ Systems Engineer, Foundations

1X Technologies AS•San Carlos, CA

22h•Onsite

About The Position

You'll own the core C++ infrastructure that everything else runs on: sensor pipelines, motor control loops, inter-process communication, and the foundational libraries that ship on every robot. Your code executes thousands of times per second on hardware moving through the real world.

Requirements

Have 5+ years shipping production C++ in performance-critical systems (robotics, autonomous vehicles, HFT, game engines, OS/runtime, compilers, HPC)
Think in cycles, cache lines, and budgets—latency, memory, bandwidth, startup time—and design systems that stay within them under load
Be at home in a Unix/Linux environment, e.g. shells, GNU tools, Unix philosophy
Have shipped real-time systems where failure has physical consequences
Debug at the systems level with benchmarking, profiling, tracing, inspecting assembly code, and heavy use of linux kernel interfaces
Write code other engineers want to build on: clear interfaces, minimal dependencies, obvious correctness

Responsibilities

Design and implement low-latency, high-throughput systems in modern C++ that run reliably on resource-constrained hardware
Own critical real-time infrastructure: sensor fusion pipelines, motor control interfaces, deterministic scheduling, and the foundational libraries shipping on every robot
Build the IPC and serialization layers connecting perception, planning, and actuation—lock-free queues, memory pools, shared-memory buffers, and high-rate logging that keeps data flowing without surprises
Establish performance as source of truth through microbenchmarks, flamegraphs, perf counters, regression tracking, and tooling that catches drift under load
Debug difficult issues across layers: toolchain/ABI problems, linking issues, kernel interfaces, cross-compilation, on-target performance
Make the system reliably boring: deterministic behavior where needed, clean failure modes, sharp interfaces other teams can build on
Ship code that runs on thousands of robots in homes and warehouses, not just prototypes in the lab