> Markdown version of [/jobs/ext/2591060-flight-software-engineer-iii-blue-national-security-top-secret-clearance-required](https://www.wearedevelopers.com/jobs/ext/2591060-flight-software-engineer-iii-blue-national-security-top-secret-clearance-required). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Flight Software Engineer III - Blue National Security (Top Secret Clearance Required) - **Company:** Blue Origin - **Location:** United States - **Experience:** Expert - **Salary:** $150,931.0 - $211,303.0 - **Contract:** Permanent contract - **Skills:** Automation of Tests, Unit Testing, Biometrics, C++ (Programming Language), Code Review, Communications Protocols, Computer Programming, Computer Engineering, Software Debugging, Linux, Embedded Software, FreeRTOS, Hardware-In-The-Loop Simulation, Python (Programming Language), Real-Time Operating Systems, Regression Testing, Software Configuration Management, Software Engineering, Software Requirements Analysis, TCP/IP, Universal Asynchronous Receiver/Transmitter, VxWorks, Scripting, Serial Peripheral Interface, Real Time Systems, Software Verification, Software Troubleshooting, Git, Yocto, Integration Tests, Information Technology - **Published:** August 14, 2026 - **Apply:** https://blueorigin.wd5.myworkdayjobs.com/BlueOrigin/job/Greater-Seattle-Area/Flight-Software-Engineer-III--TS-SCI----Blue-National-Security_R61219 ## About the Role We are looking for someone who combines technical skills with a passion for national security and spaceflight. If you thrive in a fast-paced, high-consequence environment and want your code to fly in space - this is the role for you., * Bachelor of Science in Computer Engineering, Electrical Engineering, Computer Science, or other related discipline * Minimum of 5 years of experience in embedded software development * Proficiency in C and C++ programming for embedded or real-time systems * Working knowledge of real-time operating systems (e.g., Yocto Linux, VxWorks, RTEMS, FreeRTOS, or similar) * Familiarity with software verification, testing, and debugging techniques for embedded systems * Understanding of communication protocols such as UART, SPI, I2C, TCP/IP, or similar * Active Top Secret / SCI security clearance, * Master of Science in Computer Engineering, Electrical Engineering, Computer Science, or related discipline * Experience with Python for test automation, scripting, or tooling * Experience developing safety-critical or mission-critical flight software for satellites ## Description As a Flight Software Engineer III, you will play a critical role in designing, developing, testing, and deploying embedded flight software for spacecraft systems supporting national security missions. Working alongside a talented, mission-driven team of engineers, you will contribute directly to software that commands, controls, and safeguards some of the nation's most important space assets. Your work will ensure that our vehicles and spacecraft operate safely, reliably, and with the performance our customers and missions demand., * Design, develop, integrate, and test real-time embedded flight software for spacecraft and launch vehicle avionics systems in C/C++ * Collaborate with systems, avionics, GN&C, and test engineers to translate system and software requirements into robust, flight-quality code * Participate in all phases of the software development lifecycle - from requirements definition and architecture through implementation, code review, verification, and deployment * Debug and troubleshoot software in both Software-in-the-Loop (SIL) and Hardware-in-the-Loop (HIL) test environments * Develop and execute software verification and validation plans, including unit tests, integration tests, and automated regression tests * Support software configuration management practices using tools such as Git * Contribute to continuous improvement of software development processes, tools, and infrastructure * Analyze and resolve software anomalies and support root cause investigations * Ensure all software deliverables comply with applicable safety, quality, and mission assurance standards * Support launch operations and mission readiness reviews as needed * Mentor / peer coach junior level team members, Applicants for employment at Blue Origin must be a U.S. citizen or national, U.S. permanent resident (i.e. current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Background Check * Required for all positions: Blue's Standard Background Check * Required for Certain Job Profiles: Defense Biometric Identification System (DBIDS) background check if at any time the role requires one to be on a military installation * Required for Certain Job Profiles: Drivers who operate Commercial Motor Vehicles with a Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR) or combination of power unit and trailer that meets or exceeds 10,001 lbs. and/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing, vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. * Required for certain Job Profiles: Ability to obtain and maintain Merchant Mariner Credential, which includes pre-employment and random drug testing as well as DOT physical ## Related Videos - [What I learned as a developer from accidents in space](https://www.wearedevelopers.com/videos/642-what-i-learned-as-a-developer-from-accidents-in-space) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [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) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)