Senior Cyber Security SIEM Engineer

4 weeks ago


Herndon, Virginia, United States ManTech Full time
Job Title: Senior Cyber Security SIEM Specialist

ManTech International is seeking a highly skilled Senior Cyber Security SIEM Specialist to join our Network Operations Security Center (NOSC).

Key Responsibilities:
  • Develop and implement the enterprise Security Information and Event Monitoring (SIEM) strategy and tool implementation via Splunk.
  • Design data flow diagrams and alert feed architectures to ensure seamless alert integration.
  • Develop and maintain SIEM architecture, including data sources, log management, and alerting mechanisms.
  • Configure tools, settings, alerts, and notifications to improve the enterprise security and resilience capabilities, including implementation of Security Orchestration and Automation for Response (SOAR) capabilities.
  • Develop content for rule implementation on network border devices (firewalls, routers, switches, IDS/IPS, etc.).
  • Monitor security events and alerts, conducting detailed analysis to identify potential security incidents.
  • Participate in response activities to all major enterprise outages.
  • Collaborate with incident response teams to investigate and remediate security incidents.
  • Perform regular system health checks, maintenance, and upgrades to ensure SIEM performance and reliability.
  • Provide technical guidance and support to junior analysts and other team members.
  • Stay current with the latest SIEM technologies, cyber threats, and best practices.
  • Develop and deliver training sessions on SIEM tools and techniques for DHS staff.
Requirements:
  • A bachelor's degree in computer science, information technology, cybersecurity, or a related field.
  • A minimum of 8 years of experience in cybersecurity with a focus on SIEM engineering and operations.
  • Proficiency with SIEM platforms (e.g., Splunk, Swimlane, ArcSight, QRadar, LogRhythm).
  • Strong understanding of network protocols, system logs, and security event correlation.
  • Experience in developing and tuning SIEM use cases, correlation rules, and alerts.
Preferred Qualifications:
  • Relevant certifications, such as Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CISM), Certified Ethical Hacker (CEH) -OR- SIEM specific certifications (e.g., Splunk Certified Power User).
  • A master's degree.
  • Experience working in a government or defense environment.
  • Familiarity with DHS policies and procedures.
  • Knowledge of broader cybersecurity frameworks (e.g., NIST, ISO 27001).
Clearance Requirements:
  • Must be a U.S. citizen.
  • Must possess a Secret clearance.
  • Must be able to obtain and maintain a Top-Secret clearance.


  • Herndon, Virginia, United States General Dynamics Information Technology Full time

    Job Title: Senior Director of Cyber Engineering and AutomationJob Summary:We are seeking a highly experienced Senior Director of Cyber Engineering and Automation to lead our team in delivering cutting-edge cybersecurity solutions to our clients. As a key member of our leadership team, you will be responsible for designing and implementing complex security...


  • Herndon, Virginia, United States Altus Consulting Corp Full time

    Job OverviewAltus Consulting Corp is seeking a highly skilled Cyber Security Engineer to join our team. As a key member of our security operations team, you will be responsible for analyzing, designing, and implementing security solutions to protect our clients' environments.Key Responsibilities:Analyze security requirements and develop technical...


  • Herndon, Virginia, United States Altus Consulting Corp Full time

    Altus Consulting Corp is seeking a skilled Cyber Security Specialist to analyze, design, and implement security solutions across various client environments.You will collaborate with analysts, stakeholders, and internal teams to ensure comprehensive cyber defense and deliver high-quality solutions that meet client needs and exceed security objectives.Key...


  • Herndon, Virginia, United States General Dynamics Information Technology Full time

    Cyber Security Senior DirectorGeneral Dynamics Information Technology (GDIT) is seeking a Cyber Security Senior Director to lead our cybersecurity efforts. As a key member of our team, you will be responsible for designing and deploying complex cybersecurity solutions focused on incident response, vulnerability management, threat hunt, and cyber defense.Key...


  • Herndon, Virginia, United States Twinn Intelligence Group Full time

    Job Summary:Cyber Security Project Manager - SME at Twinn Intelligence GroupJob Description:Twinn Intelligence Group seeks a Cyber Security Project Manager - SME to lead our team in implementing robust security measures.Key Responsibilities:Develop and implement system security plans and risk management frameworks.Provide technical guidance and oversight to...


  • Herndon, Virginia, United States BAE Systems USA Full time

    Job Description:We are seeking an experienced Cyber Security Engineer/Information Systems Security Engineer to join our team at BAE Systems USA. As a mission-focused Cyber Security Engineer/ISSE, you will be responsible for providing cyber security technical and policy advice and recommendations in support of the design, development, and support of National...


  • Herndon, Virginia, United States Twinn Intelligence Group Full time

    Twinn Intelligence Group is seeking a Lead Cyber Security Engineer to serve as a point of contact for the Customer regarding the entire ARS system, including security architecture and advanced cloud-based security controls to protect sensitive information, applications, databases, physical servers, and network security. This is a SME-Level position.Key...


  • Herndon, Virginia, United States BAE Systems USA Full time

    Job DescriptionBAE Systems, a leading provider of advanced defense, intelligence, and security solutions, is seeking a highly skilled Cyber Security Systems Engineer to join our team. As a Cyber Security Systems Engineer, you will be responsible for designing and implementing secure network infrastructure and enterprise computing systems.Our team is...


  • Herndon, Virginia, United States GuidePoint Security Full time

    GuidePoint Security is a rapidly growing, profitable, privately-held value added reseller that focuses exclusively on Information Security.As a Senior Security Engineer, you will be part of a team that serves as a trusted advisor to more than 4,200 customers.The ideal candidate will have 3+ years of experience with SIEM/SOAR solutions, proficiency in...


  • Herndon, Virginia, United States The Dignify Solutions LLC Full time

    Key Responsibilities:As a Cyber Security Engineer at The Dignify Solutions LLC, you will be responsible for designing, implementing, and maintaining security solutions for complex environments. This includes: Network architecture and tools NetFlow and other analytic methods for detecting malicious network activity Hardware and software troubleshooting...


  • Herndon, Virginia, United States Crimson Phoenix Full time

    Crimson Phoenix Job DescriptionThis opportunity is supporting the customer's Division level A&A projects which has several Branches within it. The A&A projects are therefore at various levels within the customer organization depending upon which team is responsible for initial development and accreditation vs. long term Operations and Maintenance support....


  • Herndon, Virginia, United States Huntington Ingalls Industries Full time

    Job Description:Huntington Ingalls Industries is seeking a Senior Cyber Systems Engineer/Administrator to work out of Herndon, VA. The selected candidate will work on-site in the program's Herndon SCIF and serve as a privileged user/PUA for assessments and other activities.Responsibilities:Monitoring system health, troubleshooting system problems,...


  • Herndon, Virginia, United States Sabree Software Services Full time

    Job OverviewSabree Software Services is seeking a highly skilled Cyber Security Systems Engineer to join our team. As a key member of our security team, you will be responsible for designing and implementing secure systems and architectures to protect our clients' sensitive information.This is a challenging and rewarding role that requires a strong...


  • Herndon, Virginia, United States ShorePoint Full time

    Job OverviewShorePoint is a leading cybersecurity services firm that delivers high-profile, high-threat security solutions to private and public-sector customers. We are passionate about our mission to protect critical infrastructure and provide a dynamic environment for career growth and development.Key Responsibilities:Deploy, implement, and maintain cyber...


  • Herndon, Virginia, United States ManTech Full time

    Job SummaryWe are seeking a highly skilled Cyber Security Forensics Analyst to join our team at ManTech International. As a key member of our Network Operations Security Center (NOSC), you will be responsible for conducting advanced digital forensics investigations, analyzing cyber threats, and developing strategies to mitigate risks.Key Responsibilities...

  • Cyber Security Expert

    4 weeks ago


    Herndon, Virginia, United States Tenica Global Solutions Full time

    Cyber Security SME Job DescriptionThis position requires a highly skilled Cyber Security/Computer and Network Defense Subject Matter Expert (SME) to concentrate on overall technical and operational effectiveness of capabilities in coordination with the COTR and Sponsor Staff management.Key Responsibilities:Provide technical and operational expertise in Cyber...

  • Senior Lead Engineer

    4 weeks ago


    Herndon, Virginia, United States Lumen Full time

    About LumenLumen is a leading provider of telecommunications and technology solutions. We connect the world by providing innovative services that enable businesses to thrive.Our team is dedicated to delivering exceptional results and exceeding customer expectations. We're looking for talented professionals to join our team and help us shape the future of...


  • Herndon, Virginia, United States Sabree Software Services Full time

    About This OpportunityWe are seeking an experienced Cyber Security Systems Architect to join our team at Sabree Software Services, a full-service software firm headquartered in Northern Virginia. The ideal candidate will possess a strong background in system architecture design, cybersecurity, and project management.The successful candidate will support the...


  • Herndon, Virginia, United States Woodside Staffing Solutions & Consulting Full time

    Job Title: Senior Splunk EngineerJob Summary:We are seeking a highly skilled Senior Splunk Engineer to join our team at Woodside Staffing Solutions & Consulting. As a Senior Splunk Engineer, you will be responsible for leading the delivery of an engagement with the sole intent of providing immense value for our customers. You will operate independently...


  • Herndon, Virginia, United States Mantis Security Corporation Full time

    Mantis Security Corporation is seeking a highly skilled Cyber Operations Specialist to join our team of experts. The ideal candidate will have a strong background in software development and a passion for cybersecurity.The Cyber Operations Specialist will work within a cross-functional Agile Scrum Team primarily focusing on building and maintaining...