What we do?

Build and harden software close to the OS for measurable performance and reliability.

We use native APIs and platform internals when the usual stack is too slow, too opaque, or too limited. The result is predictable behavior, stronger observability, and stable production systems.

Low-level problems show up as incidents, latency spikes, crashes, and “it works on my machine” behavior. We remove the root causes.

  • Unexplained latency from hidden overhead and scheduling effects
  • Crashes and memory corruption with weak diagnostics and tooling
  • Opaque systems with no deep observability at the OS boundary
  • Integration limits when you need native OS capabilities
  • CPU and I/O bottlenecks caused by inefficient paths
  • Platform-specific bugs across Windows, Linux, macOS
  • Embedded constraints with real-time requirements and tight resources
  • Hard-to-reproduce issues without profiling and trace-level data

When correctness and performance are critical, low-level engineering makes systems predictable.

What You Get

  • High-performance execution paths with low overhead
  • Diagnostics and observability at kernel and OS boundaries
  • Reliability hardening through fault isolation and graceful degradation
  • Compatibility-first integration with real-world constraints
  • Handover-ready deliverables with clear documentation

Stack and Coverage

Windows

  • Native API (ntdll), system services
  • ETW tracing, crash and dump tooling
  • Perf analysis, debugging, reliability fixes
  • Drivers and integration when required

Linux

  • Syscalls, libc, ld.so behavior
  • /proc, perf, ftrace, controlled eBPF usage
  • ptrace tooling, sandboxing, diagnostics
  • io_uring and high-throughput I/O paths

macOS

  • XNU fundamentals, Mach concepts
  • IOKit interfaces and diagnostics
  • Performance profiling and stability work
  • Native tooling and production hardening

Embedded

  • DMA, RTOS primitives, custom HALs
  • Real-time constraints and memory limits
  • Deterministic execution and safety checks
  • Device integration and protocol work

Why SToFU? What’s Next?

  • 10+ years in performance-critical and reliability-critical engineering
  • Strong expertise in architecture, security, and low-level diagnostics
  • Lean delivery: transparent milestones, no dead weight
  • Practical outcomes: measurable improvements, not just code changes

    • Send your spec or production issue and get a scoped plan with milestones. Clear path to stable releases and sustained performance.