Senior Information System Security Engineer

This is a U.S. based position. All of the programs we support require U.S. citizenship to be eligible for employment. All work must be conducted within the continental U.S. Who we are: Keystone AI ( https://TeamKeystone AI.com ) is a customer-obsessed non-traditional defense tech company dedicated to empowering U.S. military and government agencies with cutting-edge AI/ML and data solutions. We are a leader in autonomous data fusion and Agentic AI, with a purposeful focus on Distributed Data Systems, Platforms at Scale, and Complex Application Development. With headquarters in McLean, VA, our range of clients includes innovative federal and public agencies leveraging design thinking, cutting-edge tech stack, and cloud-native ecosystem. We build digital solutions that impact the lives of millions of Americans. About the role: As a Senior Information System Security Engineer (ISSE) you will provide the customer Systems Engineering and Technical Assistance (SETA) by providing security engineering, compliance and advisory work in support of our customer's rapid agile development of defensive cyber solutions to protect, defend, and respond to both ground and space based cyber adversarial threats. A successful candidate should be a leader and problem solver with a proven ability to deliver superior results as part of a high performing team in a fast-paced environment. Core Responsibilities: Has an in-depth understanding of the cybersecurity policies and procedures for government sector information systems and sufficient technical knowledge and experience to implement them. Provides hands on security and compliance guidance and work with Scrum Masters and product owners in concert with system requirements that are being developed and implementing cloud computing. RMF/ATO process support Security architecture review and assessment DevSecOps pipeline security integration (fits the Platform One/IL5 environment) Coordination with the Government ISSM/ISSO This position may require privileged access and DODD 8140 restrictions will apply. What we are looking for: Experience: Bachelor’s degree in computer science, software engineering, data science, software development or STEM related specialty and minimum of 18 years’ related professional experience; Or Master’s degree in computer science, software engineering, data science, software development, or STEM related specialty and minimum 10 years' related professional experience CISSP, Security+, or CEH certification Experience with tooling such as ACAS/Nessus, Splunk, or similar SIEM experience Must possess an active DoD Secret Clearance. A Top Secret (TS) security clearance (with SCI and SAP eligibility) is HIGHLY desired Must have IAT Level II Highly preferred: Relevant DoD and/or Industry work experience Experience with Defensive Cyber Operations Clearance Requirements: Candidates must have and be able to maintain a Secret clearance. Salary Range: $120,000.00 - $170,000.00 Work Type: On-Site (Colorado Springs, CO) Foreign and domestic travel up to 25% to customer sites What we will offer you: Highly competitive salary Fully covered healthcare, dental, and vision coverage 401(k) and company match Take as you need PTO + 11 paid holidays Education & training benefits Generous Referral Bonuses And More! Our Vision Statement: We bridge the gap between humans and data through radical transparency and our obsession with the mission. Our Customer Obsession: We will approach every deliverable like it's a product. We will adopt a customer-obsessed mentality. As we grow, and our footprint becomes larger, teams and employees will treat each other not only as teammates but customers. We must live the customer-obsessed mindset, always. This will help us scale and it will translate to the interactions that our Keystone AIers have with their clients and other product teams that they integrate with. Our culture will enable our success and set us apart from other companies. How do we get there? Public-sector modernization is critical for us to live in a better world. We, at Keystone AI, want to innovate and solve complex problems. And, if we are successful, our generation and the ones that follow us will live in a delightful, efficient, and accessible world where out-of-box thinking, and collaboration is a norm. Keystone AI’s core philosophy is Ubuntu: I Am, Because We are . We support our “nadi” by elevating the other Keystone AIers. We work as a hyper collaborative team where each team member brings a unique perspective, adding value that did not exist before. People make Keystone AI special. We celebrate each other and our cognitive and cultural diversity. We are devoted to our practice of innovation and collaboration. We’re an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.