Senior Information Systems Security Engineer (Mobile Device Security SME)

M9 Solutions LLC.; Washington (District of Columbia); On-site; USD 125,000 - 140,000; Full time

Job summary

M9 Solutions in Washington, DC is seeking a Senior Information Systems Security Engineer (Mobile Device Security SME) to support a government contract on-site. An active TS/SCI clearance is required.

You will develop and implement mobile security strategies, assess MDM/EMM deployments, and ensure compliance with NIST, RMF, and FedRAMP. The role involves guiding ISSOs and collaborating with GRC and Security Engineering teams.

Qualifications

• Active TS/SCI clearance required.
• Bachelor's degree in Cybersecurity, IT, CS or related field.
• 8+ years in mobile security, enterprise security architecture, or SME role.
• Deep understanding of iOS/Android, MDM/EMM, and mobile network protocols.
• Knowledge of federal cybersecurity frameworks and policies (NIST, EO, FISMA).
• Experience with mobile endpoint security and remote device management.

Responsibilities

• Develop and implement enterprise-level mobile security strategies and policies.
• Advise on secure mobile device usage, app vetting, and threat defense.
• Design secure architectures for mobile deployments (containerization, encryption, remote wipe).
• Evaluate MDM/EMM solutions (Intune, Workspace ONE, MobileIron).
• Analyze mobile security threats and coordinate remediation strategies.
• Lead security reviews of mobile apps and configurations.
• Ensure compliance with ZTA, EO 14028, FedRAMP, RMF, and mobile policies.
• Integrate mobile telemetry and logs into SIEM and monitoring tools.
• Provide training to ISSOs, system owners, and end users on secure practices.
• Participate in governance meetings and enterprise risk decisions.
• Collaborate with GRC and Security Engineering to enable secure mobile access for remote work and BYOD.

Skills

TS/SCI clearance

Mobile security

Security architecture

MDM/EMM

NIST SP 800-124

NIST SP 800-53 Rev.5

FISMA

Education

Bachelor's degree in Cybersecurity / IT / CS

Tools

Microsoft Intune

VMware Workspace ONE

MobileIron

SIEM

Job description

M9 Solutions is dedicated to providing IT services and solutions to the Federal Government by mobilizing the right people, skills, clearance levels, and technologies to help organizations that desire improved performance and modern, sustainable change. M9 has provided quality IT services and support to more than 30 Federal Agencies and multiple commercial customers nationwide. Our capabilities include IT Talent Solutions, Data Delivery & Analytics, Cyber Security, Cloud Migration, Applications and Infrastructure, Software Development, and Finance & Accounting.

Senior Information Systems Security Engineer (Mobile Device Security SME) to work on-site in support of a government contract for a client located in Washington, DC. An active TS/SCI clearance is required.

Responsibilities

• Develops and implements enterprise-level mobile security strategies and policies aligned with organizational objectives and federal standards, including NIST SP 800-124, NIST SP 800-53, and FIPS.
• Serves as a key technical advisor on secure mobile device usage, mobile application vetting, and mobile threat defense.
• Designs and validates secure architectures for mobile device deployments, including containerization, encryption, remote wipe, and endpoint protection.
• Evaluates and configures Mobile Device Management (MDM) and Enterprise Mobility Management (EMM) solutions such as Microsoft Intune, VMware Workspace ONE, and MobileIron.
• Analyzes and assesses mobile security vulnerabilities, threats, and exploits.
• Leads response and remediation strategies for mobile-related security incidents.
• Conducts security reviews of mobile applications, operating system configurations, Bluetooth/NFC settings, and mobile communications protocols.
• Ensures mobile device deployments comply with Zero Trust Architecture (ZTA), Executive Order 14028, FedRAMP, Risk Management Framework (RMF), and organizational mobile use policies.
• Integrates mobile device telemetry and security logs into continuous monitoring platforms, including SIEM and endpoint analytics solutions, to maintain ongoing risk visibility.
• Provides technical training and guidance to Information System Security Officers (ISSOs), system owners, and end users on secure mobile device practices.
• Participates in cybersecurity governance meetings and contributes mobile security expertise to enterprise risk management decisions.
• Collaborates with IT, Governance, Risk, and Compliance (GRC), and Security Engineering teams to enable secure mobile access for remote work, Bring Your Own Device (BYOD), and sensitive enterprise systems.
• Leads or supports mobile security projects, including pilot programs, deployments, audits, technology rollouts, and modernization initiatives.

Required Skills and Qualifications

• TS/SCI security clearance.
• Bachelor's degree from an accredited college or university in Cybersecurity, Information Technology, Computer Science, or a related field.
• 8+ years of experience in mobile security, enterprise security architecture, or a cybersecurity-focused Subject Matter Expert (SME) role.
• Deep understanding of mobile operating systems, including iOS and Android, MDM/EMM platforms, and mobile network protocols.
• Knowledge of federal cybersecurity frameworks and policies, including NIST SP 800-124, NIST SP 800-53 Rev. 5, Executive Order 14028, and FISMA.
• Experience with mobile endpoint security, secure communications, and remote device management.

Preferred Skills and Qualifications

• Industry-recognized cybersecurity certifications such as CISSP, CISM, CEH, CompTIA Security+, or CySA+.
• Experience supporting federal government or highly regulated environments, including Intelligence Community (IC) or civilian agencies.
• Familiarity with Zero Trust Architecture and mobile integration strategies.
• Hands‑on experience with vulnerability scanning tools used in mobile environments.
• Working knowledge of mobile platform supply chain risks and application vetting processes.

Full‑Time Employee Compensation

• M9 Solutions' pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include, but are not limited to, responsibilities of the position, education, experience, knowledge, skills, abilities, as well as internal equity, location, alignment with market data, applicable bargaining agreement (if any), or other law.
• M9 Benefits https://m9solutions.com/why-join-m9/#our-benefits

Salary Range $125,000—$140,000 USD

M9 Solutions, LLC (M9) is a Federal subcontractor and complies with all applicable federal laws prohibiting discrimination in employment, including Title VII of the Civil Rights Act of 1964 and the Americans with Disabilities Act (ADA). M9 also adheres to the affirmative action requirements of the Vietnam Era Veterans' Readjustment Assistance Act (VEVRAA), ensuring equal opportunity for protected veterans. If you wish to voluntarily share that you are an individual with a disability, you are welcome to do so at any point in the application or employment process; M9 does not require this information, and it will not affect your candidacy. If you need accommodation during the application process or encounter difficulties using our website, please contact our Human Resources Department [e-mail] or 703-936-0880.

M9 Solutions is a proud participant in the Virginia Values Veterans (V3) program and supports the Military Medics and Corpsmen (MMAC) initiative, demonstrating our commitment to hiring and supporting veterans, transitioning service members, military spouses, and dependents.

With 15+ years of proven delivery and growth, M9 Solutions is a unique small business with credible past performance and key capabilities offering project management services, solution architects, business analysts, program managers, technical architects, and technical consultants. M9 was recognized as an Inc. 5000 Fastest-Growing Private Companies in 2021, 2020, 2019, 2018, 2017, 2016, and 2012. M9 Solutions believes that work should be fun, rewarding, and something everyone can be excited about. We offer a competitive compensation package and valuediverse perspectivesin driving the vision of the company.