Secure Messaging Engineer – Exchange & PKI

Jobtailor; Colorado; On-site; USD 120,000 - 170,000; Full time

Job summary

Jobtailor is seeking a senior messaging systems engineer in the United States to analyze requirements and design secure messaging architectures. You will support Microsoft Exchange/Outlook, implement PKI with MFA, and integrate governance, retention, and archiving policies across on‑premise and cloud environments.

Strong RMF experience and SCI clearance are required. You will collaborate with Operations and Government stakeholders to refine requirements, validate designs in lab environments, and

Qualifications

• Must hold a current Top Secret SCI clearance with ability to obtain poly prior to start
• DOD 8140 Certification applicable to role (minimum Security+)
• Minimum 4 years hands-on experience designing, integrating, validating, and implementing IT hardware and software solutions
• Familiarity with IC ITE services and classified environments
• ITIL 4 Foundation Certification (or higher)

Responsibilities

• Analyze requirements, concepts of operations, and system architectures to create detailed messaging-infrastructure designs
• Contribute to Exchange and Outlook architectures, retention and archiving strategies
• Implement PKI and multifactor authentication for messaging-service access
• Integrate classification markings, security controls, and audit capabilities into messaging systems
• Design for availability, resiliency, reliability, and SLAs
• Implement audit, archiving, retention, automation, and storage policies for email and related content
• Support collaboration workflows including Tableau and Power Apps
• Document, accredit, and authorize systems through the RMF process
• Coordinate storage and data solutions supporting SharePoint-hosted content
• Implement claims-based authentication with RBAC
• Support on-premise, cloud-based, and Microsoft 365 designs and deployments
• Provide guidance on SharePoint migration strategies and knowledge-management platforms
• Collaborate with Operations and Government stakeholders to refine requirements
• Research design approaches and conduct analyses of alternatives, feasibility studies, proofs of concept
• Incorporate capacity, performance, and service-level metrics into email-service designs
• Produce engineering artifacts, test cases, training materials, CONOPS, and documentation
• Investigate emerging messaging and collaboration technologies and conduct tradeoff analyses
• Use Lab facilities to validate secure email architectures and technology options
• Develop unit and system-level test cases and scripts
• Support transition through acceptance testing and early production rollouts
• Provide advanced troubleshooting, repair, and optimization for messaging components including VDI integrations
• Develop planning, vendor evaluation, procurement, implementation, governance, compliance, and risk management strategies
• Support the full engineering-to-operations transition lifecycle

Skills

Messaging Infrastructure Design

PKI & MFA integration

Security architecture

Tableau & Power Apps support

Collaboration workflows

RMF and governance

Vulnerability and risk management

Auditing & retention policies

Education

High School Diploma

Associate Degree (AA)

Bachelor’s Degree (BS/BA)

Master’s Degree (MS/MA)

PhD

Tools

Microsoft 365

Tableau

Power Apps

VDI Integrations

Cloud-Based Solutions

Job description

Jobtailor is seeking a senior messaging systems engineer in the United States to analyze requirements and design secure messaging architectures. You will support Microsoft Exchange/Outlook, implement PKI with MFA, and integrate governance, retention, and archiving policies across on‑premise and cloud environments.

Strong RMF experience and SCI clearance are required. You will collaborate with Operations and Government stakeholders to refine requirements, validate designs in lab environments, and