Embedded Linux Software Engineer

Siren Opt helps manufacturers make better, safer, and more reliable micro- and nano-materials. These materials are the building blocks of critical sectors of the global economy such as batteries, computer chips, aircraft components, and power systems. But, surging material demand and growing complexity are pushing production to unprecedented scales and speeds, leaving manufacturers effectively flying blind. Small, undetected variations during production lead to wastage, lower performance, higher costs, and safety risks.

Siren Opt is changing this by developing a manufacturing intelligence platform that non-destructively probes materials during production, revealing critical internal information without damaging them. Using a novel combination of cold atmospheric plasma, physics-informed machine learning, and predictive analytics, Siren Opt generates unique, real-time material fingerprints that capture material signals not accessible through conventional measurement techniques. These insights give manufacturers unprecedented visibility into how materials behave as they are made.

We turn hidden data into actionable intelligence to help manufacturers reduce variability and thus increase yield and performance. The technology can be deployed as a standalone tool or integrated directly into factory production lines. Siren Opt is currently deploying early versions of its platform with some of the largest industrial manufacturers in the world across North America, Europe, and Asia.

About the job

Job Title: Staff Embedded Linux Software Engineer — Firmware Team

Job Type: Full-Time

Role Overview

Siren Opt is seeking an Embedded Linux Software Engineer to join a small, high-impact firmware team building the embedded software stack for a commercial bench-top scientific instrument. The platform is an AMD/Xilinx FPGA SoC (Zynq / Ultra Scale+) running Peta Linux, with a mix of userspace applications, device drivers, and real-time control interfacing with custom programmable logic.

You’ll work alongside an embedded systems architect who owns the Linux application layer, peripheral subsystems, protocol design, and hardware integration. Your core mandate is threefold: share the Linux application workload, own test automation infrastructure, and establish CI/build reliability. You’ll write production code and the tooling that proves it works.

This is a small, documentation-driven team, and you’ll be expected to write clear design docs and track progress in Jira/Confluence. The role combines hands-on lab work with prototype hardware and desk-based software development, following a sequenced release cadence (HDL → OS/drivers → embedded applications → system integration).

What You'll Do

• Develop embedded Linux application software in C (userspace, POSIX)
• Develop userspace and kernel-space drivers for internal and external devices (sensors, actuators, instruments)
• Implement and extend application-level command/control/data protocols over TCP/IP
• Implement communication drivers for industrial instruments (mass flow controllers, vacuum gauges, motor controllers) over serial and CAN interfaces
• Design, build, and maintain hardware-in-the-loop (HIL) automated test systems
• Develop host-side test tooling (Python GUIs, emulators, scripted instrument drivers)
• Establish and maintain CI/CD pipelines and reproducible build infrastructure
• Participate in hardware bring-up, board-level validation, and lab bench debugging
• Contribute to architecture decisions, documentation, and design reviews

What We're Looking For

• S., M.S., or PhD in Electrical Engineering, Software Engineering, or a related field, with 10+ years of relevant industry experience
• C for embedded Linux userspace, including threading, IPC, and POSIX APIs
• Python for test automation…