Senior Systems EngineerAvint is seeking a highly skilled Senior Systems Engineer to support a mission-critical program within the National Capital Region. This role focuses on the design, implementation, operations, maintenance, and cybersecurity of complex, large-scale IT infrastructure supporting secure environments.As part of a high-performing engineering team, you will contribute to building and sustaining resilient, secure, and scalable systems that meet stringent government requirements. This position requires deep technical expertise, strong problem-solving abilities, and experience working in highly secure, classified environments.Key Responsibilities:Design and develop architectural frameworks for complex IT systems and infrastructureProvide technical leadership across requirements development, engineering, integration, and testingSupport automation and optimization of engineering processesConduct system assessments including upgrades, migrations, and new deploymentsDevelop conceptual designs and implementation plans, including work breakdown structures (WBS)Perform research, prototyping, and integration of emerging technologiesDevelop and maintain system architecture, design documentation, and test plansSupport configuration management and lifecycle sustainment activitiesInterface with government stakeholders on technical issues and system improvementsConduct system testing and validation against defined requirementsParticipate in interface design and system integration across multiple teams