Job Title: Cybersecurity Engineer Company: Grid.aero Location: Onsite 4 days/week [San Leandro, CA] About Grid.aero Grid.aero is building the next generation of autonomous aviation systems for defense and commercial applications. Led by experienced aerospace and technology operators and backed by leading venture investors, we solve hard operational problems at the intersection of autonomy, resilient logistics, and scalable air mobility. We move quickly, operate with urgency, and build systems designed for real-world deployment where small teams own meaningful problems end-to-end. Read this, we mean it → Above all, we look for exceptional builders with deep internal drive, massive throughput, hopeless optimism, and a relentless growth mindset. The people who thrive at Grid operate with urgency, learn quickly, adapt fast, and are energized by hard problems with no obvious answers. We value individuals who continuously push themselves and the team around them to improve. This is an opportunity to work on products with national and global impact alongside a collaborative team that values technical excellence, execution, and mission focus. Role Overview We are seeking a Cybersecurity Engineer to own cybersecurity for our autonomous aircraft and the systems that support it. You will lead the path to authority to operate, secure our development environment, and build security into the design from the start. You will pick the simplest controls that do the job. What You’ll Do • Lead the Risk Management Framework (RMF) process through authority to operate (ATO) • Build and maintain security documentation such as system security plans and control assessments • Define security requirements for the aircraft, ground systems, and data links • Protect controlled unclassified information across the company • Work with the software team to build and run a secure DevSecOps pipeline • Assess threats and vulnerabilities and drive fixes into the design Key Qualifications • First-principles thinker who finds the simplest path to the goal and thrives in a fast-paced environment • 4+ years of experience in cybersecurity engineering, preferably on DoD systems • Experience with RMF and ATO packages • Familiarity with NIST SP 800-53 and NIST SP 800-171 • Experience with embedded, avionics, or weapon system cybersecurity preferred • Security+, CISSP, or similar certification preferred • Nice to have: experience with CMMC assessment and compliance • Legal Requirement: Due to U.S. export control laws, candidates must be U.S. persons (U.S. citizens or lawful permanent residents). Compensation $150-$200k | .1-. 5% Equity Equal Opportunity Employer Grid.aero is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees regardless of race, color, religion, gender, orientation, or status. Legal Notice: Grid.aero is committed to complying with U.S. export control laws. Due to the nature of our work, candidates must be U.S. persons (U.S. citizens or lawful permanent residents as defined by 8 U.S.C. 1324b(a)(3)).