Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and low-cost approach. Vast is rapidly developing its multi-module Haven Station to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Haven Demo’s 2025 success made Vast the only operational commercial space station company to fly and operate its own spacecraft. Next, Haven-1 is expected to become the world’s first commercial space station when it launches in 2027, followed by additional Haven modules. Additionally, the company recently announced Vast Satellite, a high-power satellite product line leveraging its space station components and the heritage of Haven Demo. Headquartered in Long Beach, California, and with more than 1,000 employees and over a billion dollars in private capital, Vast has built the facilities required to manufacture and operate America’s next space station. The company plans to develop future habitats and systems for the Moon and Mars, dedicated space stations for government partners, and other crewed systems that will unlock the expanding long-term space economy. Vast is looking for a Staff Flight Software Engineer, reporting to Senior Manager, Flight Software, to support the development of the systems that will be required for the design and build of artificial-gravity human-rated space stations.  This will be a full-time, exempt position located in our Long Beach location. You will develop fault-tolerant code for safety-critical systems, and work closely with the avionics team to integrate flight code with avionics hardware. Most importantly, you will work as part of a team that believes that finding and fixing errors is a positive experience that will make everyone’s work better, and makes the team stronger as we continuously improve our processes and products. Responsibilities: • Work with the Flight Software team to create highly reliable flight software for all Haven missions • Work cross functionally with all other disciplines GNC, Thermal, Propulsion, Power, and ECLSS to support algorithm implementation and integration into the flight software • Assess and critique code, ensuring adherence to best practices and established standards, in code reviews • Develop driver-level code to interface with radios, sensors, and actuators onboard for all Haven missions • Develop and maintain the Telemetry and Commanding Systems which will be used to communicate with our vehicles • Develop unit and integrated tests, and establish continuous integration framework for flight Minimum Qualifications: • Bachelor’s degree in computer science, computer engineering, electrical engineering or other engineering discipline • 10+ years of experience coding in C++ Preferred Qualifications: • Fault-tolerant and safety-critical software design • Experience developing software for complex systems such as spacecraft, aircraft or autonomous vehicles • Experience working in a continuous build and test environment • Experience with Embedded Systems • Experience working with satellite communications or telemetry systems • Hands-on experience with serial protocols such as UART, CAN, I2C, SPI, and/or Ethernet (TCP/UDP) • Understanding of Linux kernel software and drivers • Network programming experience • Familiarity with oscilloscopes, logic analyzers, and digital multimeters • Familiarity with the Atlassian Suite (JIRA, Bitbucket, Confluence) • Familiarity with Git, Cmake, and GNU tools • Able to work in a Linux environment Additional Requirements: • Willingness to work evenings and/or weekends to support critical mission milestones Pay Range: California $188,600—$267,700 USD We calibrate level and compensation to the selected candidate's experience and demonstrated capability. We welcome applicants across a range of experience levels to apply.   COMPENSATION AND BENEFITS Base salary will vary depending on job-related knowledge, education, skills, experience, business needs, and market demand. Salary is just one component of our comprehensive compensation package. Full-time employees also receive company equity, as well as access to a full suite of compelling benefits and perks, including: medical, dental, and vision coverage for employees and dependents, generous paid time off; up to 20+ days of vacation for exempt staff and up to 10+ days of vacation for non-exempt staff with the ability to cash-out unused vacation annually, paid parental leave, short and long-term disability insurance, life insurance, access to a 401(k) retirement plan, ClassPass credits, personalized mental healthcare through Spring Health, and other discounts and perks. We also take pride in offering exceptional food perks, with snacks, drip coffee & onsite barista, cold drinks, and dinner meals remaining free of charge, and lunch subsidized as part of Vast’s ongoing commitment to providing high-quality meals for employees. U.S. EXPORT CONTROL COMPLIANCE STATUS The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. This status includes U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending. EQUAL OPPORTUNITY Vast is an Equal Opportunity Employer; employment with Vast is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.