Solution Engineer, IHSS, Cyber Practice

MANTECH • Herndon, VA

4d • $179,300 - $318,400 • Hybrid

About The Position

MANTECH seeks a Solutions Engineer in its Cyber Practice supporting Intelligence and Federal Civilian accounts. The role serves as the primary technical architect and representative of the Cyber Practice, shaping technical vision for proposals, programs, and customer engagements. The engineer scopes and designs end-to-end cyber solutions, including when customer requirements are not fully defined.

The role leads cyber architecture and technical solutioning for major government opportunities, works with capture and business development teams and Cyber Practice subject-matter experts, and develops and reviews technical proposal materials. It also includes leading technical reviews and using modern and AI-assisted tools to model architectures, validate concepts, and occasionally build demonstrations or proofs of concept.

The position is based in Herndon, Virginia, with a hybrid work arrangement. Travel may be required for client meetings, technical demonstrations, or proposal efforts. An active TS/SCI with Polygraph clearance is required.

Requirements

• Bachelor’s degree in Computer Science, Engineering, Cybersecurity, or a related technical field, or equivalent experience.
• 10 or more years of experience in solutions engineering, systems architecture, or technical pre-sales within government contracting.
• Proven track record leading technical solutioning for complex RFIs and RFPs in Intelligence Community, Department of Defense, or Federal Civilian markets.
• Ability to navigate ambiguous requirements, take command of technical strategy, and orchestrate cross-functional subject-matter expert teams.
• Strong written and verbal communication skills, including the ability to translate complex technical concepts into mission-focused proposal volumes.
• Ability to operate with high autonomy and synthesize deep technical details into cohesive proposal architectures.
• Current and active TS/SCI with Polygraph clearance.

Nice To Haves

• Experience developing Work Breakdown Structures, staffing models, and technical pricing strategies for government bids.
• Broad conceptual understanding across cybersecurity domains, including NIST frameworks, Zero Trust Architecture, defensive operations, and security engineering in classified environments.
• Familiarity with modern AI-assisted tools such as GitHub Copilot and Cursor for technical modeling, workflow generation, or rapid concept validation.

Responsibilities

• Own cyber architecture for major RFIs, RFPs, and proactive capture efforts across Intelligence and Federal Civilian accounts, translating ambiguous customer needs into actionable, differentiated technical approaches.
• Serve as the lead technical cyber voice on proposal teams and collaborate with Capture Managers, Business Development leads, and executive leadership to shape capture strategy.
• Partner with Cyber Practice subject-matter experts to integrate capabilities such as defensive cyber operations, cryptographic resilience, zero trust, and ICAM into unified solution visions.
• Draft, review, and finalize technical proposal volumes, whitepapers, Work Breakdown Structures (WBS), and basis of estimates (BOEs).
• Lead technical color team reviews, including Pink, Red, and Green reviews, defending technical choices and refining solution narratives throughout the capture lifecycle.
• Use modern tools and AI-assisted development practices to rapidly mock up high-level architectures, functional concepts, or proofs of concept to validate proposal strategies.
• Develop technical demonstrations and proofs of concept as a hands-on builder when needed to validate proposed architectures.

Benefits

• Health insurance
• Life insurance
• Paid time off
• Holiday pay
• Short-term and long-term disability
• Retirement and savings
• Learning and development opportunities
• Wellness programs
• Optional benefit elections

What This Job Offers

• Job Type: Full-time
• Career Level: Senior