> Markdown version of [/jobs/ext/4584135-software-engineer-3](https://www.wearedevelopers.com/jobs/ext/4584135-software-engineer-3). 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). --- # Software Engineer 3 - **Company:** Blue Origin - **Location:** Kent, WA, United States - **Experience:** Expert - **Salary:** $164,652.0 - $230,513.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Software Applications, Automation of Tests, Biometrics, Software Quality, Databases, Continuous Integration, Software Design Patterns, Hardware-In-The-Loop Simulation, Modbus, Node.Js, Software Architecture, Software Engineering, Data Streaming, Systems Integration, TypeScript, WebRTC, Data Storage Technologies, Information Technology, Data Pipelines - **Published:** November 5, 2026 - **Apply:** https://www.adzuna.com/details/5760976075 ## About the Role * B.S. in Computer Science, Computer/Software Engineering, or a related STEM field * 5+ years of relevant software development experience * Strong proficiency in TypeScript/JavaScript and Node.js * Experience building and shipping production applications, including data storage and real-time communication * Demonstrated experience with software architecture, design patterns, and testing/CI practices * Must be a U.S. citizen or national, U.S. permanent resident (current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Preferred Qualifications: * Experience with Electron and cross-platform desktop application development * Experience integrating with PLCs and industrial protocols (Modbus, etc.) at the driver level * Experience with time-series databases, high-rate data acquisition, or streaming data * Familiarity with command and control, test systems, or hardware-in-the-loop environments * Experience leading projects and mentoring engineers ## Description * Architect, develop, and maintain River, an Electron-based command and control application (TypeScript/JavaScript, Node.js) * Design and own data pipelines for storage, manipulation, and real-time send/receive of high-rate data * Lead driver-level integration with PLC and packaged control surfaces (Modbus and other industrial protocols) * Establish software architecture, design patterns, and engineering best practices across the codebase * Drive code quality through reviews, automated testing, and CI/CD * Partner with controls, avionics, and test engineers to define interfaces and translate requirements into robust software * Troubleshoot complex issues across the software/hardware boundary in development and test environments * Mentor junior engineers and contribute to technical roadmap and cross-program lessons learned, 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 (CDL drivers only), 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