Senior Cyber Security Engineer

Leidos has a new and exciting opportunity for a Senior Cybersecurity AI Developer in our Intel Sector. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Job Summary:Our program provides our customer's Operations organization with the best possible solutions for their mission needs. We achieve this through rapid prototyping, new development, and advanced technology research. From leading-edge visualizations to analytic development, we're always pushing the boundaries to find new and better data sources and tradecraft to answer intelligence questions. With a focus on collaboration and a fast-paced environment, our prototype development program is the ideal place to grow your skills and make a real impact. Clickhereto learn more about how this program “Delivers Mission Success!”We are seeking a motivated Senior Cybersecurity AI Developer to join our development team supporting Cybersecurity Defensive Operations. In this role, you will build innovative solutions and rapid prototypes that directly enhance the efficiency of operators protecting critical government agencies and Defense Industrial Base (DIB) resources.You will work side-by-side with mission operators, transforming their real-world challenges into advanced technical capabilities. By leveraging cutting-edge corporate AI resources, you will accelerate code development and deliver sophisticated analytical tools for systems vulnerability analysis, incident response, adversary emulation, and COMSEC monitoring.Qualified candidates are eligible for enhanced incentives including up to a $25K cash sign on bonus or a paid time off bonus. Job Responsibilities/Qualifications: Mission Focus:Develop Solutions: Build and prototype software that directly increases the speed and efficiency of defensive cyber operations.Collaborate with Operators: Work closely with mission operators to observe workflow challenges and design innovative technical solutions.Integrate AI Capabilities: Leverage Large Language Models (LLMs) and corporate AI resources to optimize development lifecycles and scale data analytics.Enhance Mission Capabilities: Support critical workflows across vulnerability patching, incident response, and threat emulation.Job Responsibilities/Qualifications:Master’s degree +6 years, bachelor’s degree +8 years, associate’s degree +10 years, or High School diploma or GED +12 years of relevant experience. Relevant experience must be in the software development process (i.e., requirements analysis, software design, implementation, testing, integration, deployment/installation, and maintenance) and programming. Formal or informal leadership experience is preferred.Software Engineering: Strong foundational experience in core software development methodologies.Python Mastery: Proficiency in Python for application development, scripting, and data manipulation.Cybersecurity Exposure: Solid understanding of foundational cybersecurity concepts, defensive operations, or threat landscapes.Security Clearance Requirement:Active TS/SCI with Polygraph required to be considered for this role.Desirable Skills:Artificial Intelligence: Direct experience developing AI solutions and utilizing LLMs in production.Data Science: Background in data engineering, data science, or advanced analytics.SIEM Tools: Experience with Splunk development, dashboard creation, or data ingestion pipelines.Containerization & Orchestration: Hands-on experience with Kubernetes or Rancher architectures.Workflow Automation: Experience orchestrating data pipelines using Apache Airflow.At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today!Careers.leidos.comCONMDIf you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.Original Posting:August 25, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.Pay Range:Pay Range $107,900.00 - $195,050.00The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.SummaryLocation: Laurel, MDType: Full time