Engaging the future...

Our government segment provides a wide array of technical services and solutions, primarily to U.S. federal, state and local government agencies. Our commercial segment provides technology-driven consulting, systems integration and outsourcing services and solutions in selected commercial markets.

Featured Services

Systems Engineering and Integration

S4 develops and integrates complete systems of all sizes, bringing to bear our unique combination of deep scientific and technical expertise, broad experience in the environments in which the systems will be used, and strong systems engineering and program management processes and skills.




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S4 consultants are highly-skilled professionals who have a passion for applying new technologies to solve challenging problems. Our exciting small company atmosphere and technology-friendly culture consistently attracts the brightest and most talented individuals in the industry.

Our focus is to attract and develop great talent. Are you ready to be challenged? Are you ready to achieve and be recognized? It's all here for you.

Why S4

You can excel at S4 because we're ready and equipped to transform your ambition and drive into an exciting and satisfying career. The opportunities, challenges, and learning we provide will help you build your future with us. We are a company of focused and compelling values, commited to the community, prides itself on a commitment to work-life balance, and with a culture of diversity and inclusiveness.

Join S4

You are ready to tackle some of the world's most challenging problems and S4 can be the place to make that happen. Start here for a career that will challenge you and satisfy your desire to succeed. We are looking for experienced cleared and uncleared professionals.

BenefitsS4 provides flexible benefit choices designed to suit employees' needs and the needs of their families. Each employee assumes the responsibility for making important decisions regarding his or her personal well-being. Our employees are eligible to receive insurance benefits, paid holidays, paid training and retirement.