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Systems Security Specialist (Senior)

ExpediteInfoTech, Inc
  • Rockville, MD
  • Quick Apply
30+ days ago

Job Description

Note: The candidate must be flexible to work overtime, on-site/off-site, as needed, including weekends, holidays, and off-hours.

Responsibilities
  • Conduct internal and external penetration testing of networks, web applications, APIs, and cloud environments to identify security vulnerabilities and exploit paths.
  • Perform red team engagements simulating real-world adversary tactics, techniques, and procedures (TTPs) aligned with MITRE ATT&CK.
  • Execute vulnerability assessments and validate remediation efforts through retesting and technical verification.
  • Develop comprehensive penetration testing reports, including executive summaries, risk ratings, proof-of-concept evidence, and actionable remediation guidance.
  • Perform threat modeling and attack surface analysis to identify high-risk exposure areas and privilege escalation pathways.
  • Conduct secure configuration reviews of operating systems, network infrastructure, cloud platforms, and identity systems.
  • Evaluate application security through dynamic and manual testing techniques, including authentication, session management, input validation, and access control testing.
  • Review source code for security weaknesses and secure coding gaps, particularly in C/C++, Python, Java, or similar languages.
  • Develop and maintain custom scripts or tooling to automate testing activities and enhance offensive security capabilities.
  • Support incident response activities by recreating attack chains, validating compromise scenarios, and identifying root causes.
  • Assess Zero Trust implementations, micro-segmentation strategies, and identity-based security controls for effectiveness.
  • Conduct phishing simulations and social engineering exercises to evaluate user awareness and organizational resilience.
  • Provide technical briefings to executive leadership and technical stakeholders regarding risk posture and remediation prioritization.
  • Collaborate with engineering, DevOps, and infrastructure teams to remediate identified vulnerabilities and strengthen security architecture.
  • Contribute to the development of security policies, testing methodologies, and enterprise security standards.
  • Support compliance efforts by mapping testing results to NIST, OWASP, CIS, or other applicable security frameworks.
  • Participate in continuous improvement of penetration testing methodologies, tools, and adversary emulation strategies.
  • Adhere to all security, change control, and MHBE Project Management Office (PMO) policies, processes, and methodologies.

Minimum Qualifications:
  • A Minimum eight (8) years of progressive experience in cybersecurity
  • A minimum of five (5) years performing penetration testing or red team engagements.
  • A minimum of five (5) years conducting network penetration testing, web application and API testing, internal and external vulnerability assessments and threat modeling and attack path analysis
  • A minimum of five (5) years developing and delivering formal penetration test reports, including executive summaries and technical remediation guidance.
  • A minimum of five (5) years supporting incident response investigations and validation testing.
  • A minimum of five (5) years with common penetration testing tools (e.g., Metasploit, Burp Suite, Nmap, Wireshark, Nessus, etc.).
  • Strong knowledge of Secure coding practices, Application security testing (SAST/DAST concepts), Network architecture and segmentation and Identity and access management concepts
  • A minimum of five (5) years of demonstrated scripting or development ability in at least one language (e.g., Python, C/C++, PowerShell, Bash).
  • A minimum of five (5) years of working with NIST Cybersecurity Framework, NIST 800-53 or similar federal control frameworks, MITRE ATT&CK and OWASP Top 10
  • A minimum of five (5) years of experience mapping findings to security control frameworks.
  • At least one recognized offensive security certification (e.g., OSCP, GPEN, GXPN, CEH, or major experience can substitute for certification).
  • Demonstrated ability to communicate technical findings to executive and non-technical audiences, and provide actionable remediation recommendations.
  • Demonstrated experience working in government or highly regulated environments.
Preferred Qualification:
  • A Minimum ten (10) years of progressive experience in cybersecurity
  • A minimum of eight (8) years of experience in Advanced Offensive Security:
  • Experience leading red team engagements.
  • Experience performing adversary emulation exercises.
  • Experience conducting phishing and social engineering simulations.
  • Experience performing purple team exercises.
  • A minimum of five (5) years of experience in Zero Trust & Architecture:
  • Experience designing or assessing Zero Trust implementations.
  • Experience evaluating micro-segmentation strategies and identity-centric controls.
  • A minimum of five (5) years of experience in Cloud & Modern Infrastructure:
  • Experience performing security assessments in AWS or Azure environments, Containerized environments (Docker/Kubernetes) and Infrastructure-as-Code deployments
  • Experience testing CI/CD pipelines.
  • A minimum of ten (10) years of experience in Software Development Depth:
  • Strong low-level development knowledge (kernel, assembly, embedded systems) that supports advanced exploit analysis.
  • Experience reviewing source code in JAVA or other compiled languages for vulnerabilities.
  • A minimum of ten (10) years of experience in Government in the following:
  • Experience supporting federal or state government security programs.
  • Familiarity with FedRAMP, FISMA, or IRS Pub 1075 environments.





About:ExpediteInfoTech, Inc. (EIT) is a SBA 8(a) certified small business. Headquartered in Rockville, MD since 2012, EIT has provided specialized technical, cybersecurity, IT, and financial advisory solutions to the Federal, State and County governments. Our clients include the US Department of Education, US Department of Transportation, US Department of Justice, US Department of Health & Human Services, Montgomery County government, Prince George's County Government, the governments of the State of Maryland and the District of Columbia. EIT is appraised at level 3 for CMMI Services & CMMI Development, as well as ISO 9001:2015, ISO 20000-1:2018 and ISO 27001:2013.

EIT offers a competitive benefits package including medical, dental, vision and prescription drug coverage, paid time off, federal holidays, matching 401K plan, and tuition/professional development reimbursement benefits.

EIT is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by applicable law.

Numbers & Facts

LocationRockville, MD

Skills

  • Access Controlunmatched
  • Amazon Web Services (AWS)unmatched
  • Analysis Skillsunmatched
  • Application Programming Interface (API)unmatched
  • Applications Securityunmatched
  • Assembly Equipmentunmatched
  • Authenticationunmatched
  • Bash Scriptingunmatched
  • C Programming Languageunmatched
  • C++ Programming Languageunmatched
  • Capability Maturity Model Integration (CMMI)unmatched
  • Change Controlunmatched
  • Cloud Computingunmatched
  • Code Reviewsunmatched
  • Communication Skillsunmatched
  • Compiled Programming Languagesunmatched
  • Computer Securityunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Improvementunmatched
  • Continuous Integrationunmatched
  • Department of Health and Human Servicesunmatched
  • DevOpsunmatched
  • Dockerunmatched
  • Educational Administrationunmatched
  • Embedded Systemsunmatched
  • Emulatorsunmatched
  • Engineer in Training (EIT)unmatched
  • Enterprise Protectionunmatched
  • Establish Prioritiesunmatched
  • FISMA - Federal Information Security Management Actunmatched
  • Federal Governmentunmatched
  • GPEN - GIAC Penetration Testerunmatched
  • Governmentunmatched
  • ISO (International Organization for Standardization)unmatched
  • ISO 9001unmatched
  • Identity Data Managementunmatched
  • Incident Responseunmatched
  • Internet Applicationunmatched
  • Internet Securityunmatched
  • Javaunmatched
  • Kernel Programmingunmatched
  • Leadershipunmatched
  • Metasploitunmatched
  • Microsoft Windows Azureunmatched
  • NMapunmatched
  • Nessusunmatched
  • Network Administration/Managementunmatched
  • Network Architecture/Engineeringunmatched
  • Network Securityunmatched
  • Network Testingunmatched
  • Penetration Testingunmatched
  • Phishingunmatched
  • Policy Developmentunmatched
  • Project/Program Managementunmatched
  • Proof of Conceptunmatched
  • Python Programming/Scripting Languageunmatched
  • Quality Assurance Methodologyunmatched
  • Riskunmatched
  • Risk Analysisunmatched
  • Root Cause Analysisunmatched
  • Scripting (Scripting Languages)unmatched
  • Secure Codingunmatched
  • Security Analysisunmatched
  • Security Architectureunmatched
  • Small Businessunmatched
  • Social Engineeringunmatched
  • Software Developmentunmatched
  • Software Testingunmatched
  • State Governmentunmatched
  • Surface Modelingunmatched
  • Systems Administration/Managementunmatched
  • Team Lead/Managerunmatched
  • Technical Presentationunmatched
  • Test Automationunmatched
  • Test Plan/Scheduleunmatched
  • Test Toolsunmatched
  • Testingunmatched
  • Threat Modelingunmatched
  • U.S. National Institute of Standards and Technology (NIST)unmatched
  • United States Department of Justice (DOJ)unmatched
  • United States Department of Transportation (DOT)unmatched
  • Validation Testingunmatched
  • Windows PowerShellunmatched
  • Wireshark (Ethereal)unmatched

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