Senior NGDE Engineer (Linux OS Engineer)
TekSynap
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Benefits offered by this job
Job summary
Qualifications
- Active TS/SCI + CI Poly clearance is required.
- 5+ years Linux administration experience in enterprise or government environments.
- Experience implementing DISA STIGs, NIST controls, and RMF compliance.
Responsibilities
- Design, deploy, configure, and maintain enterprise Linux environments.
- Automate system configuration and deployment using Ansible.
- Support integration and sustainment of Cross Domain Solutions.
Skills
Education
Tools
Job description
- Design, deploy, configure, and maintain enterprise Linux environments (RHEL, Rocky, CentOS, Ubuntu, or equivalent).
- Build and maintain secure Linux OS baselines in accordance with DoD STIGs, NIST, and RMF requirements .
- Perform system hardening, patch management, and vulnerability remediation for classified environments.
- Automate system configuration and deployment using tools such as Ansible, Puppet, or similar automation frameworks .
- Engineer and maintain systems supporting cross-domain data transfer and multi-level security (MLS) environments .
- Support integration and sustainment of Cross Domain Solutions (CDS) enabling secure data exchange between networks of different classification levels.
- Collaborate with security teams to ensure proper data flow enforcement, access controls, and auditing in classified environments.
- Troubleshoot and resolve issues impacting secure information flow between domains .
- Support the architecture and sustainment of Next Generation Digital Environment (NGDE) platforms.
- Integrate Linux-based services with enterprise infrastructure including identity management, container platforms, and virtualization solutions .
- Assist in modernization initiatives including cloud integration, DevSecOps pipelines, and platform automation .
- Implement and maintain security controls aligned with RMF, NIST 800-53, and DISA STIGs .
- Conduct system auditing, log analysis, and compliance verification.
- Support security assessments, ATO processes, and continuous monitoring activities.
- Ensure all systems meet classified operational security requirements .
- Monitor system performance, availability, and resource utilization .
- Implement high-availability solutions and disaster recovery strategies.
- Provide Tier III engineering support for critical Linux infrastructure.
- Develop and maintain technical documentation, system diagrams, and standard operating procedures .
- Participate in engineering design reviews and architecture discussions.
- Mentor junior engineers and provide technical leadership within the Linux engineering team.
- Active TS/SCI + CI Poly clearance
- Bachelor’s degree in Computer Science , Information Systems, Engineering , or related field (or equivalent experience).
- BS, 10-12 years of relevant experience; MS 8-10 years; PhD, 5-7 years.
- 5–7 years Linux administration experience in enterprise or government environments or 8+ years of experience in Linux system administration or engineering.
- Security+ CE certification.
- RHCSA or RHCE certification.
- Experience implementing DISA STIGs, NIST controls, and RMF compliance requirements .
- Ability to create SOPs, playbooks ( runbooks), and architecture documentation.
- Experience troubleshooting across multi-level classification domains.
- Experience troubleshooting compute, net work , st orage.
- VMware/KVM familiarity.
- Deep understanding of designing and implementing ITSM workflows.
- Hands-on automation experience with Ansible, Bash, Python.
- CKA certification
- RHEL Satellite/Foreman, Kickstart, IdM /FreeIPA, HashiCorp Vault.
- Container/Cloud: Podman , Docker, Kubernetes, AWS/GovCloud, Azure.
- Terraform, registry/ artifact management.
- Monitoring/SIEM: Prometheus, Grafana, ELK/OpenSearch.
- Experience working with endpoints that support a multi-level classification environment.
- Strong proficiency with RHEL and Debian/Ubuntu systems, services, and package management.
- Deep expertise with enterprise Linux distributions (RHEL preferred).
- Experience supporting classified environments and cross-domain systems .
- Strong knowledge of:
- Linux system internals
- Networking (TCP/IP, routing firewalls)
- System hardening and vulnerability management
- Automation tools (Ansible, Bash, Python, etc.)
We are seeking a Senior NGDE Engineer (Linux OS Engineer) to join our Task Order to build, harden, and sustain mission‑critical Linux platforms in a highly secure enterprise on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Senior NGDE Engineer (Linux OS Engineer) will engineer, harden, secure, and sustain mission‑critical Linux platforms across a highly secure enterprise environment. Responsibilities span lifecycle management, STIG compliance, automation, performance tuning, and cross‑team collaboration .
TekSynap is a fast‑growing high‑tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment. “Technology moving at the speed of thought” embodies these principles – the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers.
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.
Visit us at www.TekSynap.com.
- Location: Reston, VA
- Type of environment: Varies
- Noise level: Low
- Work schedule: “Normal work hours” constitute on average 8 hours a day, 40 hours per week (excluding breaks and meal periods) within standard operational hours occurring 0600-1800, Monday-Friday, excluding Federal holidays. May be requested to work evenings and weekends to meet program and contract needs.
- Amount of Travel: 20%
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 grip, handle, or feel; reach with hands and arms; and talk or 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.
- U.S. Citizenship
- Active TS/SCI + CI Poly clearance
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.
TekSynap is a drug‑free workplace. We reserve the right to conduct drug testing in accordance with federal, state, and local laws. All employees and candidates may be subject to drug screening if deemed necessary to ensure a safe and compliant working environment.
In order to provide equal employment and advancement opportunities to all individuals, employment decisions will be based on merit, qualifications, and abilities. TekSynap does not discriminate against any person because of race, color, creed, religion, sex, sexual orientation, gender identity, protected veteran status, national origin, disability, age, genetic information or any other characteristic protected by law (referred to as “protected status”). This nondiscrimination policy extends to all terms, conditions, and privileges of employment as well as the use of all company facilities, participation in all company-sponsored activities, and all employment actions such as promotions, compensation, benefits, and termination of employment.
TekSynap is committed to ensuring that our online application process provides an equal employment opportunity to all job seekers, including individuals with disabilities. If you believe you need a reasonable accommodation in order to search for a job opening or to submit an application, please contact hr@teksynap.com for assistance.
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