Senior Test Engineer (TS/SCI w/Poly)

ResponsibilitiesPeraton is seeking a highly skilled Senior Test Engineer to help design, build, and secure next-generation software systems supporting critical mission operations. In this role, you’ll develop high-performance applications aligned with the Technical Reference Architecture while applying advanced security techniques across the full software lifecycle.You’ll join a collaborative, technically strong team that values innovation, continuous learning, and secure engineering practices. This is a hands-on opportunity to shape resilient solutions, contribute to architectural decisions, and directly impact mission success in a dynamic environment.What You’ll Do:Design, develop, test, and operate secure, scalable software solutions aligned with mission and architecture requirements.Integrate advanced security practices throughout the SDLC, including code reviews, security testing, and vulnerability mitigation.Troubleshoot, debug, and enhance both new and existing applications to improve performance and resilience.Provide engineering recommendations and design solutions to proactively reduce security risk.Contribute across all layers of the architecture to ensure performance, scalability, and reliability.Develop and maintain clear, sustainable technical documentation.Collaborate across teams to promote secure coding practices and knowledge sharing.Stay current with emerging tools, frameworks, and best practices to continuously improve development workflows.What You'll Bring:You’re a hands-on engineer who enjoys solving complex technical challenges at scale.You thrive in mission-driven environments, are comfortable working across the stack, and bring a strong foundation in secure development and distributed systems. You’re naturally curious, collaborative, and focused on building resilient, high-performing solutions that make a real-world impact.#MDFSPQualificationsBasic Qualifications:Twenty (20) years of experience as a SWE in programs and contracts of similar scope, type, and complexity is requiredBachelor’s degree in Computer Science or related discipline from an accredited college or university is required. Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree.Active TS/SCI security clearance with a current polygraph is requiredPreferred Qualifications:Experience developing software in Linux or Solaris environments (6+ years preferred).Strong development experience in Java, C, or C++ (Java strongly preferred).Experience building RESTful services and scalable distributed systems.Experience with Kubernetes or containerized environments.Experience with NoSQL/Open Source data platforms such as HBase, Accumulo, or Bigtable.Experience developing analytics-focused applications.Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan.Peraton OverviewPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.Target Salary Range$146,000 - $234,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.EEOEEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.Job SummaryRequisition ID: 2026-164162Position Category: Information TechnologyClearance: Top Secret/SCI w/Poly