Cybersecurity Engineer

Job TitleCybersecurity EngineerLocationHerndon, VA - Herndon, VA 20171 US (Primary)Job Description Fibertek is seeking a Cybersecurity Engineer to strengthen and protect critical systems supporting government programs. In this role, you will engineer secure solutions, monitor and defend sensitive systems, and ensure compliance with cybersecurity requirements, NIST 800 171, CMMC and defense industry directives.You will serve as a cybersecurity lead to ensure the confidentiality, integrity, and availability of Microsoft domain managed systems, shared resources, and hybrid cloud infrastructure. You will partner closely with Director of IT, IT department, security, and government stakeholders to maintain accreditation, strengthen defenses, and support business application security.Key ResponsibilitiesCybersecurity EngineeringDesign, implement, and maintain controls across on prem, cloud, and hybrid environments.Engineer secure configurations for Windows, Linux, network appliances, Azure and M365.Develop and tune SIEM detections, correlation rules, and automated response workflows.Implement Zero Trust aligned architectures and segmentation strategies.Windows server hardening and shared system securityThreat Monitoring & Incident ResponseSIEM/EDR tools (Rapid 7, Windows Defender), scripting (PowerShell, Python) Execute incident response activities including containment, eradication, and recovery.Maintain incident response playbooks, log pipelines, and automation workflows.Secure shared folders, file servers, and collaboration platforms (e.g., SharePoint, Teams) against unauthorized access and data leakage.Compliance & AccreditationEnsure cybersecurity compliance with government and customer requirements.Support CMMC SSP actions, POA&M remediation, and continuous monitoring.Conduct vulnerability assessments, patch validation, and secure configuration reviews.Administer privileged access, MFA, RBAC, and identity governance controls.Audits, Documentation & Stakeholder SupportPrepare for and support government cybersecurity inspections and audits.Maintain accurate cybersecurity documentation, diagrams, logs, and technical reports.Creating and documenting new solutions to mitigate security issuesEstablish governance, guardrails and training for responsible security processesJob RequirementsRequired QualificationsU.S. Citizenship.Active DoD Secret ClearanceBachelor’s degree in Cybersecurity, IT, Computer Science, or related field.Minimum 5 years of cybersecurity engineering or security operations experience.Hands on experience with SIEM, EDR, vulnerability management, and secure system engineering.2+ years of Active Directory and associated components (Kerberos, NTLM, Group Policy, Backup and Disaster Recovery, DNS, AD tiering models)2+ years of Entra ID and associated components (Conditional Access, Multifactor Authentication, Passwordless Authentication, Privileged Identity Management, Identity Protection, Entra ID Connect)Ability to effectively communicate technical results, risks, and recommendations to non-technical stakeholders.Additional or Preferred QualificationsExperience with regulated environments (CMMC, NIST 800-171, DFARS, ITAR, etc.) Experience operating within Microsoft GCC High M365 environmentsCertifications: SC-900, SC-300, MS-500, Security+, CASP+, GCIH, or similar.Experience with virtualization platforms such as Hyper-V, VMware, etc.Experience with IP network management including routing, firewalls, access control lists, DHCP, packet analysis, and troubleshooting network traffic flowSalary RangeThe annual base salary range for this position is $120,000-$150,000. This range reflects the compensation Fibertek reasonably expects to offer for this role. Placement within the range will depend on factors such as the scope and responsibilities of the position, the candidate’s experience, education and training, key skills, and relevant market and business considerations.Benefits offered: The company provides a comprehensive benefits package, including medical, dental, and vision coverage; disability, life insurance, and AD&D; a 401(k) plan with a company match and immediate vesting; Flexible Spending Accounts and Health Savings Accounts; an Employee Assistance Program; education assistance; paid time off and holidays; flexible work schedules; and a 9/8/80 alternate workweek option. FIBERTEK, Inc. is a recognized leader in advanced lasers, lidars and laser communication systems providing our DoD, NASA and aerospace customers discriminating capabilities. We pride ourselves in our innovation and customer success focused culture enabled by a creative and relaxed work environment. Fibertek fosters a progressive learning environment that values inspiration, promotes professional challenge and encourages personal growth. We offer a competitive and incentivized compensation package with excellent benefits. Fibertek, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment based on individual merit, skills, and experience. Fibertek does not engage in nor permits any discrimination in the workplace.-