Senior Security Engineer

TekSynap$100K — $130K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Active Top Secret Clearance with SCI eligibility required.
  • DoD 8570 / 8140 Compliance: Active IAT Level II and CSSP Infrastructure certification.
  • 8+ years of hands-on cybersecurity experience within a DoD environment.
  • Experience in incident response within a DoD CSSP or SOC environment, including evidence collection and reporting.
  • Familiarity with NIST SP 800-61 for incident handling.
  • Extensive engineering experience in IL-4/5 cloud environments.
  • Experience with multiple network classification levels (NIPR, SIPR, JWICS).
  • Advanced experience with security analytics platforms like Splunk and Microsoft Sentinel.
  • Proficiency in security scripting and automation using Python or similar languages.
  • Solid Linux/Unix administration knowledge.

Responsibilities

  • Lead security automation initiatives using Python, Ansible, and SOAR tools.
  • Design and secure AWS cloud architecture compliant with DoD standards.
  • Enhance the SIEM platform as the SME by developing security content and integrations.
  • Implement security analytics across platforms, including Microsoft Sentinel and Splunk.
  • Mentor team members on security best practices for various networks.
  • Integrate new data and tools into the security ecosystem for improved detection.
  • Create and maintain technical documentation for multi-enclave operations.
  • Monitor and support incident response using SIEM platforms effectively.

Benefits

  • Health, dental, and vision insurance.
  • 401K retirement plan.
  • Life insurance coverage.
  • Short-term and long-term disability plans.
  • Paid vacation time and holidays.
Full Job Description
Responsibilities & Qualifications

RESPONSIBILITIES
  • Lead the design and implementation of security automation workflowsusing tools like Python, Ansible, and SOAR platforms to enhance efficiency and response capabilities across all network enclaves.
  • Design, engineer, and secure cloud architecture within AWS IL-4/5 environments, implementing robust security controls and ensuring compliance with stringent DoD standards.
  • Serve as the SIEM SME/Architect to enhance the agency's SIEM platformby developing advanced security content, creating custom dashboards, integrating REST APIs, and onboarding new data sources to improve threat visibility.
  • Serve as a senior engineer for security analytics across multiple platforms, including, but not limited to Microsoft Sentinel and Splunk.This involves developing and implementing advanced correlation rules, workload analytics, and threat intelligence models to detect and respond to anomalous activity.
  • Serve as a senior technical resource and mentor for other team members, providing guidance on best practices for operating securely across classified and unclassified networks.
  • Analyze and integrate new subscriber data and security tools into the existing ecosystem to enhance threat detection and response capabilities.
  • Create and maintain clear, comprehensive technical documentation, including architectural diagrams and Standard Operating Procedures (SOPs) tailored for multi-enclave operations.
  • Monitor, triage, and support incident response leveraging SIEM platform capabilities including correlation searches, and risk-based alerting (RBA) across all network enclaves.
  • Maintain and update SIEM content (dashboards, alerts, reports) in alignment with IR playbooks and SOAR workflows to accelerate analyst response times and improve detection fidelity

REQUIRED QUALIFICATIONS
  • Active Top Secret Clearance with SCI eligibility.
  • DoD 8570 / 8140 Compliance: Active IAT Level II and CSSP Infrastructure certification.
  • 8+ years of relevant experience in a hands-on cybersecurity role within a DoD environment.
  • Experience supporting or participating in incident response within a DoD CSSP or SOC environment, including evidence collection, timeline reconstruction, and post-incident reporting.
  • Familiarity with NIST SP 800-61 (Computer Security Incident Handling Guide) as the baseline IR framework.
  • Extensive, hands-on engineering experience and operating within multi-cloud IL-4/5 secure cloud environments.
  • Demonstrated experience working across multiple network classification levels (NIPR, SIPR, and JWICS).
  • Advanced, hands-on experience with security analytics platforms, including Splunk (Enterprise/ES), Elastic, and Microsoft Sentinel.
  • Strong, demonstrable proficiency in scripting and automation for security tasks using languages like Python, PowerShell, Bash, or Ansible, including experience with API integrations.
  • Solid foundation in Linux/Unix administration and command-line operations necessary for managing backend SIEM and security infrastructure.

PREFERRED QUALIFICATIONS
  • Certifications related to Microsoft Azure Security (e.g., Azure Security Engineer Associate, Microsoft Sentinel Ninja).
  • Experience configuring and maintaining RHEL systems in compliance with DISA STIGs and supporting ATO documentation efforts.
  • Experience with Infrastructure as Code (IaC) tools (e.g., Terraform, CloudFormation).
  • High-level SIEM (Splunk, Elastic, MS Sentinel) and Cloud Architecture certifications.
  • Working knowledge of the DoD Risk Management Framework (RMF) process, including experience preparing or supporting System Security Plans (SSPs), STIGs, and continuous monitoring requirements for systems operating at IL-4/5.


Overview

We are seeking a highly skilled Senior Security Engineer ((SIEM, Cloud, & Security Analytics) to be a key technical leader on our CSSP Team. This role is for a seasoned professional with deep, hands-on experience operating across multiple DoD network enclaves (NIPR, SIPR, and JWICS). The ideal candidate will drive the design and implementation of sophisticated security solutions, both on-prem and future secure cloud environments, leveraging expertise in a range of security platforms, including, but not limited to Splunk, Elastic, and Microsoft Sentinel. This is a hands-on role for a senior expert who can engineer and automate a complex, multi-faceted security posture.

We offer our full-time employees a competitive benefits package to include health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays.

Additional Job Information

WORK ENVIRONMENT AND PHYSICAL DEMANDS

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.
  • Location: Fort Belvoir, VA
  • Type of environment: Office
  • Noise level: Low
  • Work schedule: Monday - Friday, with flexibility for evening/weekend work as needed..
  • Amount of Travel: 10%

PHYSICAL DEMANDS

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this job, the employee is regularly required to use hands to handle, feel, touch; reach with hands and arms; talk and hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus.

WORK AUTHORIZATION/SECURITY CLEARANCE
  • U.S Citizenship Required
  • Top Secret Clearance with SCI Eligibility required

OTHER DUTIES

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

About TekSynap

TekSynap Careers

Joining TekSynap provides a unique opportunity to work with a team of professionals who are leaders in delivering advanced technological solutions. TekSynap, renowned for its commitment to innovation and leadership, offers a variety of job opportunities that cater to ambitious technology enthusiasts eager to drive digital transformation.

Explore Job Opportunities

TekSynap is actively hiring and offers a range of positions that encourage professional growth and skill development. Interested candidates can explore open positions that match their skills and career aspirations. TekSynap values diversity and inclusion, ensuring that all employment practices empower individuals from various backgrounds.

Experience Professional Growth

At TekSynap, career growth is not just a possibility but a priority. With comprehensive professional development and diversity training programs, employees are equipped to ascend in their careers through continuous learning and leadership opportunities. The company supports its team with the tools needed to succeed in their roles and beyond.

Internship Programs

For those starting their career journey, TekSynap’s internship programs provide a robust foundation in the tech industry. Interns gain hands-on experience, working alongside seasoned experts and participating in projects that foster real-world skills. These internships often lead to full-time positions, offering a seamless transition into the professional world.

Cultivating a Supportive Culture

TekSynap is dedicated to fostering a workplace culture that promotes teamwork, creativity, and employee well-being. The benefits at TekSynap go beyond the standard; they are designed to support a healthy work-life balance and include initiatives that cater to the holistic well-being of the team.

Networking and Innovation

Employees at TekSynap enjoy a dynamic work environment where innovation is at the forefront. Networking within the company is encouraged through various team-building and collaborative projects, enhancing the creative process and leading to groundbreaking solutions in the technology sector.

Prepare for Your Interview

For those looking to join TekSynap, preparing a tailored resume and honing interview skills is crucial. The company seeks candidates who are curious, creative, and ready to contribute to a team that is at the cutting edge of technology solutions.

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