
By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide.
Cole Engineering Services (CESI), a By Light company, is recognized as a premier provider of modeling and simulation (M&S) training solutions to the Federal Government and industry. Since 2004, CESI has been at the forefront of developing, maintaining, and integrating simulation-based training, serious gaming, technical services, training and other support in live, virtual, constructive, and gaming (LVCG) domains. CESI also designs, builds and runs infrastructure, platforms, applications and processes that enable cyber training for the integrated multi-domain force. Our vision is to become a worldwide full spectrum LVCG and cyber training/analysis developer, integrator and services provider.
Provide cybersecurity engineering support to DoD software application development activities through cybersecurity requirements definition, process enhancements and application security testing activities.
Please note that pursuant to a government contract, this specific position requires U. S. Citizenship status with a current SECRET security clearance, with the ability to attain a TOP SECRET/SCI clearance. Security Clearance requirements will be specified in the Government's Task Order.
This position is on-site and may require travel (less than 10%).
CESI recognizes that our strength is our people. We support every employee as an individual to build strong teams across the enterprise. Our benefit package includes:
CESI is committed to principles of inclusion and equal employment opportunity. We foster a non-discriminatory, professional work environment for all our teams. We do not discriminate based on race, color, religion, sex, pregnancy, sexual orientation, gender identity, genetic information, national origin, age, marital status, disability, or veteran status.

Cole Engineering Services, Inc. (CESI), a By Light company, is a defense technology company headquartered in Orlando, Florida. Since 2004, CESI has delivered modeling, simulation, training, cyber, and mission systems capabilities for U.S. and allied defense customers. CESI combines deep MS&T experience with modern software development, systems integration, and cyber range expertise to build, connect, and operate mission-relevant training and simulation environments. From live, virtual, and constructive integration to cyber training ranges, synthetic training environments, mission rehearsal frameworks, and platform trainers, CESI delivers mature, proven, and practical solutions that help prepare today’s force for complex operational environments.