Systems and embedded software, built by someone who has shipped it.

Bitrealm LLC. C++ and Rust for embedded, automotive, and performance-critical systems. Orlando, Florida. Remote.

Software Contracting

Bitrealm LLC is the contracting practice of Matt Beisser, a staff-level software engineer with more than ten years in C++ and Rust for embedded, automotive, and performance-critical systems. Available for part-time and project-based work.

Embedded and systems code

Production C++ and Rust on Linux: device modules, packet and stream processing, middleware integration, and the tooling around them.

Legacy modernization

Compiler and toolchain upgrades, build-system rewrites, and RTOS-to-Linux ports on codebases that have to keep working while they change.

Automotive and safety-critical

SOME/IP, DoIP, and UDS integration; ISO 26262 verification evidence; Automotive SPICE test process work ahead of an audit.

Performance and diagnostics

Profiling with perf and flame graphs, worst-case execution time fixes, and diagnostic data pipelines that make sensor failures explainable.

Where the
experience
comes from

Luminar Technologies, 2021 to 2025. Staff Software Engineer and team lead on lidar software for the Volvo EX90. Owned two core C++ modules through ISO 26262 ASIL B verification, then led a four-person team building a Rust diagnostic data platform.

Toptech Systems, 2012 to 2021. Nine years on a million-line C++ product for fuel terminal automation. Ported the flagship controller from eCos to Yocto Linux and modernized the build and codebase along the way.

Education. B.S. Computer Engineering, University of Central Florida.

Working set

C++14/17, Rust, Python, Bash. Linux on Ubuntu, Red Hat, and Yocto. CMake, Bazel, Conan, GCC, Clang. perf, Valgrind, flame graphs, clang-tidy, gdb, Wireshark. Docker, QEMU/KVM. SOME/IP, DoIP, UDS, UDP.

No forms and no sales process. Send a note describing the work and you get a reply from the engineer who would do it.