Senior Security Systems Engineer 3

M.C. Dean, Inc•Tysons, VA

5d•Onsite

About The Position

M.C. Dean is Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastructure, and global enterprises. With over 9,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration. Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values—agility, expertise, and trust—we foster a collaborative and forward-thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries. We are seeking a Senior Security Systems Engineer 3 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets.

Requirements

5+ years of related experience with a Bachelor's degree, 3+ years with a Master's degree, a PhD with relevant experience, or an equivalent combination of education and experience.
Experience applying systems engineering practices to complex technical, operational, or mission-focused systems, including one or more of: architecture modeling, agile methodologies, requirements development, interface analysis, integration planning, verification and validation, or technical documentation
Ability to develop or review architecture products, requirements specifications, trade studies, technical plans, and acquisition artifacts
Strong analytical, verbal, and written communication skills; ability to brief technical concepts to technical and non-technical audiences
Ability to work directly with government sponsors, program managers, and technical teams, both independently and collaboratively in a dynamic environment
Demonstrated time-management and organizational skills to meet deadlines and quality objectives
Active Top Secret clearance with full-scope polygraph (FSP) or ability to obtain one (U.S. citizenship required)
Willingness to travel domestically and internationally up to 15%, including to various sponsor locations; position requires a minimum of 4 days/week on site
Strong MS Excel, Word, and PowerPoint skills a plus

Nice To Haves

Advanced degree in engineering, systems engineering, data science, or a related field
Experience developing SysML/UML workflow diagrams, including block definition, activity, sequence, state machine, and requirement diagrams
Experience applying systems architecture frameworks, interface models, or enterprise architecture products
Experience advising the federal government on acquisition lifecycle activities, including SOW/SOO development, market research, and source selection support
Experience with digital or mission engineering, enterprise architecture, cloud-based systems, data platforms, cybersecurity, or command-and-control systems
Experience leading technical tasks, facilitating stakeholder workshops, or advising senior technical and program leadership
Experience researching, prototyping, or integrating emerging technologies, and with systems that have strict security, resiliency, interoperability, or regulatory requirements

Responsibilities

Apply systems engineering practices across the full lifecycle: stakeholder analysis, concept development, architecture, requirements development, integration, verification and validation, and technical transition
Translate customer needs, operational constraints, and program objectives into system concepts, functional designs, and implementation approaches
Develop, assess, and refine system architectures, including operational, functional, logical, and physical views, interfaces, data flows, and integration points
Facilitate stakeholder workshops and technical exchanges to elicit, document, and validate requirements; maintain traceability from stakeholder needs through design, interfaces, and verification
Conduct engineering studies, trade analyses, and gap assessments to evaluate current systems, technology options, and opportunities for improvement
Lead system integration, test, verification, validation, and deployment activities, including sequencing and readiness reviews; resolve technical blockers
Identify and manage technical risks, issues, and dependencies; support technical reviews (requirements, architecture, design, test readiness, deployment readiness)
Support RMF accreditation and ATO maintenance; ensure accuracy of system documentation, including design, configuration, and O&M plans
Manage product backlog and prioritize work with stakeholders in an agile environment; define and enforce engineering standards and processes
Prepare and deliver technical briefings, trade-study results, and status reports; advise government customers and program leadership on technical priorities and modernization roadmaps
Collaborate across multidisciplinary teams (software, hardware, cybersecurity, cloud, data, network, test, operations) and communicate complex technical concepts to technical and non-technical audiences