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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Embedded Software developer - **Company:** ZAPNIX LLC - **Location:** Plano, TX, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Automation of Tests, AUTomotive Open System Architecture (AUTOSAR), C++ (Programming Language), Control Objectives for Information and Related Technology (COBIT), Communications Protocols, Continuous Integration, Linux, File Systems, Embedded Software, Hardware Interface Design, Linux System Administration, Linux Commands, MISRA C (C Programming Language), Open Source Technology, Open Web Application Security, Public Key Infrastructure, Scrum Methodology, Real-Time Operating Systems, Software Deployment, Software Engineering, Strategies of Testing, Universal Asynchronous Receiver/Transmitter, Serial Peripheral Interface, Yocto, Information Technology, U-Boot - **Published:** May 19, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=6eb27bfc9e410811 ## About the Role * 10+ years of experience in embedded systems software development, with a focus on both hardware and software components. * Strong understanding of embedded programming languages (e.g., C, C++) and familiarity with real-time operating systems (RTOS). * Experience developing embedded Linux systems, BSP integration and customization with tools such as Yocto * Knowledge of communication protocols (e.g., I2C, SPI, UART) and hardware interfaces. * Excellent problem-solving skills and attention to detail. * Comfortable using the linux command line interface Added Bonus: * Experience with embedded security features such as secure boot, TrustZone development, filesystem encryption, etc * Experience with RUST for production deployments * Understanding of cryptographic primitives (Keys, TLS, PKI, etc… * Understanding of Linux Filesystem Protections (fscrypt, LUKS, dm-verity)) * Familiarity with the Linux initialization process (systemd) * Experience developing in compliance with safety and security standards such as MISRA, SEI CERT, and AUTOSAR. * OSCP, SANS/GIAC, CISSP, or other related/equivalent certifications. * Experience with compliance regulations/laws, security frameworks and standards (e.g., ISO/SAE 21434, NIST, HIPAA, ISO, COBIT, OWASP, ITIL, etc.). * Experience with one or more of the following industries: law enforcement, defense, intelligence community, automotive, manufacturing, software, * Bachelor's degree or higher, in Computer Science, Engineering or related discipline, or equivalent professional experience * Fluent in Japanese (reading, writing, speaking) for business and technical discussions. ## Description We are seeking a highly skilled Principal Software Engineer with extensive experience in Linux-based systems software design, security concepts, development, and testing. The ideal candidate will be responsible for implementing new mission critical in-vehicle features and architecting and delivering industry leading secure software. Key/Primary Responsibilities * Develop embedded software for Toyota products. * Operate with minimal oversight to define requirements with stakeholders and design the implementation of new features. * Investigate cyber security controls of processors and microcontrollers and develop Proof-of-Concepts and implementation guidance to suppliers. * Work with the open-source community to expand capabilities of existing projects and share new projects that are broadly useful outside of Toyota. * Develop software in accordance with team coding guidelines and industry standards including MISRA, SEI CERT, and AUTOSAR. * Collaborate with CICD teams to add new capabilities to the build and release pipeline and customize pipeline for new projects. * Collaborate with test teams to define testing strategies and assist in automated test development. * Mentor junior and mid-level engineers in software development best practices and provide guidance in their design, implementation, and testing tasks. * Conduct root cause analysis of defects and lead initiatives to improve product quality and testing processes. * Work with a wide range of stakeholders to align on deliverable expectations, deployment timelines, and testing issues. * Participate in team meetings, including sprint planning, retrospectives, and daily stand-ups, to ensure effective communication and collaboration. * Stay current with industry trends and best practices in embedded systems development, and advocate for their integration into the team's processes. ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [The best of two worlds - Bringing enterprise-grade Linux to the vehicle](https://www.wearedevelopers.com/videos/67-the-best-of-two-worlds-bringing-enterprise-grade-linux-to-the-vehicle) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) - [More efficient software for more efficient microchips](https://www.wearedevelopers.com/videos/1164-more-efficient-software-for-more-efficient-microchips) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Dev Digest 138 - Are you secure about this?](https://www.wearedevelopers.com/magazine/486-dev-digest-138-are-you-secure-about-this) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)