1X Technologies

Software Engineer - Core Systems

San Carlos, CA

Sponsorship not specified$200k-$280kDetected 35 days ago

C++Data StructuresLinuxRoboticsCommunication

About the role

If you want to work on the systems layer that makes physical AI possible at scale, this is that team.
This is critical-path work: the latency, correctness, and maintainability of sensor pipelines, motor control loops, and IPC layers directly determines what the perception, planning, and controls teams can ship.
Every clean interface introduced, every regression caught, and every millisecond saved here multiplies across every robot we deploy.

We're building humanoid robots that work in home - doing the chores, handling the tasks, and giving people their time back.
NEO is our flagship - a home robot designed to move, learn, and operate in the real world alongside real people.
We're scaling, we're hiring with intention, and we need people who want to build something that will genuinely change how humans spend their time - safely creating abundance for all.
sensor pipelines, motor control interfaces, deterministic scheduling such that dependent teams can build on it without hitting foundational performance or reliability blockers

5+ years shipping production
5+ years shipping production C++ in performance-critical systems: robotics, autonomous vehicles, HFT, game engines, OS/runtime, compilers, or HPC
Demonstrated ability to profile, benchmark, and debug at the systems level: flamegraphs, perf counters, assembly inspection, and Linux kernel interfaces

Experience with real-time or safety-critical systems where latency guarantees and failure modes have physical consequences
Familiarity with lock-free data structures, memory pools, and shared-memory IPC patterns
Experience with cross-compilation toolchains and embedded Linux targets
Background in robotics, autonomous vehicles, or other physical systems
Ship foundational libraries that run reliably on thousands of robots in homes and warehouses, not just prototypes in the lab

Comprehensive medical, dental, and vision coverage
Generous paid time off, company holidays, and parental leave
Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA) options
Commuter benefits (transit and parking)
Short-term and long-term disability, and life insurance
Employee Assistance Program (EAP) for mental health, financial, and personal support

The Foundations team builds and owns the core C++ infrastructure that NEO's entire stack runs on-sensor pipelines, motor control interfaces, inter-process communication, and the foundational libraries that ship on every robot.
Our code executes thousands of times per second on hardware moving through the real world, and its correctness and performance directly determines what every other team can build and ship.
Own the foundational C++ infrastructure that NEO's brain and nervous system depend on ensuring it is fast, deterministic, and reliable as we scale from prototypes to thousands of robots in homes and warehouses.
We've been at this since 2014 and we're at the point where the hard problems are behind us and the hard work is in front of us.

1X is an Equal Opportunity Employer.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, ancestry, citizenship, age, marital status, medical condition, genetic information, disability, military or veteran status, justice system impact, or any other characteristic protected under applicable federal, state, or local law.

rd to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, ancestry, citizenship, age, marital status, medical condition, genetic information, disability, military or ve

This listing is sourced directly from 1X Technologies's careers page and normalized into a canonical job model.