Senior Embedded Software Engineer

Twosix Technologies•Arlington, VA

32d•Onsite

About The Position

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what's possible to empower our team and support our customers in building a safer global future. Overview of Opportunity Two Six Technologies is looking for a Senior Embedded Software Engineer to join our growing team in Arlington, Virginia. We are a mission-driven group focused on embedded cybersecurity research and building low-level software capabilities that transition from proof-of-concept to fieldable systems in support of national security missions. If you're passionate about embedded systems and thrive at the intersection of software and hardware, we want to talk to you.

Requirements

Bachelor's degree in Computer Science, Computer/Electrical Engineering, or a related technical field
5+ years of experience in embedded software development using Python, C, C++, or Embedded C
Experience with Linux-based CLI tools, scripting, and low-level development environments
2+ years of experience with operating system internals (e.g., privilege/user groups, memory layout) and Trusted Execution Environments like ARM TrustZone
Familiarity with FPGA or microcontroller systems, including debugging and hardware bring-up
Active Top Secret clearance, with willingness to obtain TS/SCI and Polygraph
Ability to work on-site full-time in Arlington, VA

Nice To Haves

Experience with CI/CD tools and building automated test workflows (e.g., GitLab, Jenkins)
Basic understanding of memory management (Heap, Stack, MMU)
Familiarity with firmware or driver development across Linux and/or Windows
Experience with secure bootloaders (e.g., WolfBoot) and firmware update workflows
Graduate degree in a related technical discipline
Active TS/SCI with Polygraph

Responsibilities

Develop and mature embedded software prototypes into operational solutions
Support hardware bring-up and low-level software integration for microcontrollers, FPGAs, and custom boards
Build scalable, modular designs with reusable components across platforms
Design and develop APIs, command-line tools, and software/hardware bridging interfaces
Contribute to test automation infrastructure and workflows (e.g., GitLab pipelines), including support for Automated Test Equipment (ATE) used in internal integration and external manufacturing
Participate in technical exchanges with transition partners and external stakeholders