Senior Systems Engineer

Modern Technology Solutions, Inc. (MTSI) is searching for a  Senior Systems Engineer located in Alexandria, Virginia; Huntsville, Alabama; Colorado Springs, Colorado and Dayton, Ohio. How you will contribute to our National Security and Defense mission: As a Senior Systems Engineer with MTSI, you will strengthen national defense by transforming operational needs into mission‑ready system solutions and advanced research efforts. You will apply the V‑lifecycle to define system objectives, develop clear and verifiable requirements, and maintain rigorous traceability to ensure systems meet mission intent. Your ability to translate requirements into logical, physical, and digital architectures will guide multidisciplinary teams as you serve as the integration “glue” across complex programs. You will lead technical interchange meetings and interface control working groups to align stakeholders and support Government engagement. Leading the effort in supporting technology readiness through key engineering artifacts that inform system design and integration. You will help ensure reliable, well‑engineered capabilities are matured and fielded to advance national security priorities. You’ll be a great fit for this role if: ( SOFT SKILLS ) Proactive problem‑solver with strong initiative; able to take ownership of tasks and drive progress with limited oversight. Strong communication skills, with the ability to clearly convey complex technical concepts to diverse audiences. Skilled at influencing, coordinating, and leading technical conversations, including technical interchange meetings and interface control working groups. Highly organized, able to manage traceability, verification activities, and documentation with precision. As an experienced systems engineer, you’ll act as the bridge to MBSE. You’ll build system architecture models in Cameo Enterprise Architecture, build state machines, use case diagrams, and Block Definition Diagrams (BDDs) to capture system structure, behavior, and requirements traceability. You’ll be using DOORS Classic, Cameo and other systems engineering tools. Responsibilities: Your essential job functions will include but may not be limited to: Apply V‑lifecycle development processes to military and commercial systems. Develop operational concepts, use cases, and system objectives for USAF programs. Create verifiable system and subsystem-level requirements and conduct traceability audits. Develop verification plans and support customer acceptance. Translate requirements into logical, physical, and digital architectures. Build SysML models to support the system design. Lead technical interchange meetings and interface working groups. Produce functional flow diagrams, interface control documents, and stakeholder presentations. Conduct RDT&E, operation, and maintenance of electrical devices/databases/systems. Utilizing MATLAB for data analysis, confirming system requirements are met during testing Qualifications Required: Minimum 6+ years of systems engineering experience. Knowledgeable with developing and managing system and subsystem requirements. Experience using requirements management tools such as IBM DOORS.  Experienced with Microsoft Office 365 tools.  Understanding of MBSE modeling concepts (preferred but not required).  Understanding of MagicDraw Cameo (preferred but not required).  Demonstrated ability to work in a dynamic environment.  Education: Bachelor's degree in Systems Engineering or related engineering field. Clearance Requirements : Must have minimum a Secret DoD Security Clearance. Must be a US Citizen. The pay range for this position in Virginia is $100,000/year to $135,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. #LI-MS1 #LI-Onsite