Public Key Infrastructure (PKI) Systems Engineer

General information

Requisition # R61587 Locations USA-MD-Hanover Posting Date 07/08/2025 Security Clearance Required TS/SCI Remote Type Hybrid Time Type Full time

Description & Requirements

Unlock the secrets of intelligence with ManTech! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with ManTech!

ManTech seeks a highly experienced and mission-focused Public Key Infrastructure (PKI) Systems Engineer to support a vital program in the Hanover, MD area. This role encompasses the full systems engineering lifecycle, from architecture and requirements development through design, testing, integration, and sustainment. You will play a pivotal role in shaping enterprise architecture, guiding cross-functional teams, and supporting national security objectives through secure system design.
 

This is a hybrid role that requires someone local to the Hanover, MD area. 
 

Responsibilities include, but are not limited to:
 

Systems Engineering & Architecture

• • Lead requirements definition and management to ensure alignment with enterprise-level frameworks such as the DoD Architecture Framework (DoDAF) and Service-Oriented Architecture (SOA).
• • Develop and document alternative system concepts, physical architectures, and system-level design solutions.
• • Define evaluation criteria and verification methods for assessing system performance and compliance.

Technical Documentation & Planning

• • Author and maintain critical engineering documents, including: System Engineering Plans (SEPs), Initial Capabilities Documents (ICDs), System/Software Requirements Specifications (SRS), Interface Control Documents (ICDs).

Program Coordination & Governance

• • Coordinate engineering action items arising from design reviews, milestone meetings, Configuration Control Boards (CCBs), and test events.
• • Drive issue resolution and decision-making across multi-disciplinary teams.

Security Engineering & IA Integration

• • Derive and specify Information Assurance (IA) requirements including confidentiality, integrity, availability, and accountability.
• • Integrate key IA mechanisms such as authentication protocols, cryptographic services, access control, and key management infrastructure.

Performance Analysis & Risk Management

• • Conduct quantitative evaluations of system reliability, maintainability, survivability, and other non-functional performance metrics.
• • Support risk analysis and trade studies to inform strategic engineering decisions.

Configuration & Change Management

• • Implement and manage formal configuration control and change tracking processes.
• • Ensure traceability and stakeholder alignment throughout the requirements lifecycle.

Systems Integration & Technical Oversight

• • Provide leadership during the development, integration, and testing of complex hardware/software systems.
• • Support full lifecycle engineering tasks including: Requirements elicitation, Functional decomposition, Interface definition, Systems architecture development, End-to-end performance modeling and analysis.

PKI Compliance & Interoperability

• • Compare and analyze PKI systems to identify interoperability risks.
• • Draft and evaluate PKI Certification Practice Statements (CPS) for compliance with X.509 Certificate Policy standards.
• • Conduct audits and security assessments of PKI infrastructure and components including: Certification Authorities (CAs), Hardware cryptographic modules, Smartcards, tokens, and applets, Card management systems, Trusted role functions.
   

Basic Qualifications
 

• Education: Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering, Science, or Engineering Management. An additional 5 years of relevant experience may substitute for a degree.

• Experience: Minimum of 20 years of experience as a Systems Engineer supporting technical programs of similar scope and complexity.

• Demonstrated experience in:

  - Systems architecture development and lifecycle documentation

  - Security assessments for cryptographic modules (e.g., NSS tokens, HSMs)

  - PKI interoperability and compliance evaluations

  - Developing white papers and technical position documents
 

Preferred Qualifications
 

• Red Hat Certification (e.g., RHCSA, RHCE)
 

Security Clearance
 

• Must possess an active TS/SCI clearance

• Must be willing and eligible to obtain a Polygraph
 

Physical Requirements
 

• Ability to remain in a stationary position for approximately 50% of the time.

• Frequent use of office equipment including computers and productivity tools.

• Strong verbal and written communication skills required for collaboration, documentation, and presentation.

The projected compensation range for this position is $162,600.00-$289,500.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.  In addition, ManTech invests in its employees beyond just compensation.  ManTech’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

ManTech International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with ManTech, please email us at careers@mantech.com and provide your name and contact information.