Security Engineer

Telos Corporation offers a Security Engineer role in Ashburn, VA (onsite), supporting the design, integration, and improvement of enterprise security technologies and technical controls. You will help strengthen security operations through platform engineering, automation, vulnerability remediation, system hardening, and incident troubleshooting, while working with teams across security, IT, applications, and programs.

Responsibilities

• Engineer, configure, maintain, integrate, and improve enterprise security technologies including SIEM, EDR, vulnerability management, network security, identity and privileged access management, data security, threat intelligence, and security monitoring platforms.
• Support the full lifecycle of security technologies, including evaluation, design, implementation, configuration, integration, upgrades, health monitoring, troubleshooting, and retirement.
• Build and maintain integrations between security platforms, enterprise systems, cloud services, and operational workflows using APIs, scripting, and other automation methods.
• Onboard and maintain security-relevant data sources, validate data quality and coverage, and troubleshoot logging, parsing, collection, and ingestion issues.
• Develop automation to reduce manual effort, improve consistency, accelerate response, and deliver measurable operational benefits.
• Support enterprise vulnerability management by identifying technical risks, assisting system owners with remediation, validating corrective actions, and recommending compensating controls when remediation cannot be completed promptly.
• Create and implement secure configuration standards, technical security baselines, reference architectures, and reusable engineering patterns.
• Participate in security architecture and technical design reviews for enterprise systems, applications, cloud services, and infrastructure changes.
• Evaluate proposed technologies and system changes to identify security requirements, integration dependencies, technical risks, and operational support requirements.
• Provide advanced technical escalation and troubleshooting support to the Security Operations Center, IT, application teams, and program personnel.
• Assist cybersecurity investigations by collecting and analyzing relevant endpoint, network, identity, application, cloud, and security-platform data.
• Identify gaps in security visibility, platform coverage, system configuration, integration, and control effectiveness, then develop practical corrective actions.
• Plan, test, document, and implement security-related changes under established change-management requirements, including validation and rollback procedures.
• Monitor operational health, capacity, licensing, support status, and effectiveness of assigned security platforms.
• Maintain accurate technical documentation, including architecture diagrams, configuration records, integration specifications, runbooks, operating procedures, and troubleshooting guides.
• Cross-train team members and develop documentation that reduces reliance on individual personnel for critical security technologies and processes.
• Coordinate with vendors and service providers to resolve technical issues, evaluate product capabilities, and plan upgrades or improvements.
• Support information security and enterprise technology projects and perform other duties as assigned.

Requirements

• Bachelor’s degree in cybersecurity, information technology, computer science, engineering, or a related field preferred (or the equivalent combination of education, professional training, and work experience).
• Three or more years of experience in security engineering, systems administration, network engineering, cloud engineering, security operations, or a closely related technical field.
• Hands-on experience implementing, administering, integrating, or supporting enterprise security technologies such as SIEM, EDR, vulnerability management, firewalls, identity security, privileged access management, data security, or threat intelligence platforms.
• Experience supporting Windows and Linux operating systems in an enterprise environment.
• Understanding of network architecture, common network protocols, authentication, directory services, certificates, encryption, logging, and system-hardening concepts.
• Cloud technology experience, particularly Amazon Web Services, is desirable.
• Experience using PowerShell, Python, APIs, or similar technologies to automate technical and operational processes.
• Ability to analyze complex technical issues, identify root causes, develop corrective actions, and communicate risks clearly.
• Understanding of vulnerability management, secure configuration, change management, incident response, and the security technology lifecycle.
• Ability to create clear technical documentation, architecture diagrams, implementation plans, operating procedures, and troubleshooting guides.
• Effective written and verbal communication skills and ability to work professionally with technical and non-technical personnel.
• Strong organizational skills with ability to prioritize multiple engineering tasks, operational responsibilities, and project requirements.
• Ability to work independently while collaborating with Security Operations, IT, application teams, program personnel, and other stakeholders.
• Commitment to continuous improvement, knowledge sharing, documentation, automation, and professional development.
• Must meet or be able to meet applicable DoD 8140 Cyber Workforce qualification requirements when assigned to work requiring those qualifications.
• Industry certifications such as CompTIA Security+, CySA+, SecurityX, SSCP, CISSP, CCSP, AWS Certified Security - Specialty, or relevant vendor certifications are desirable.
• Ability to obtain a U.S. Government security clearance is preferred.
• US citizenship is required to meet eligibility requirements to access sensitive information.

Salary

USD 90,640 - 113,300 per year

Benefits

• Generous paid time off
• Medical
• Dental
• Vision
• Tuition reimbursement
• 401k