Linux System Security Engineer
Quantum Leap Research, LLC
Job Description
Job Description
We are seeking a highly skilled mid or senior level Linux System Security Engineer to join our team. The ideal candidate will have a strong background in Linux and networking, as well as experience in securing the systems and devices.
Responsibilities:
- Design, implement and maintain security practices across our infrastructure, focusing heavily on on-premises systems.
- Regularly audit systems for security vulnerabilities, apply security patches, and provide recommendations to mitigate risks.
- Automate security tasks using configuration management tools like Ansible.
- Perform system hardening, including kernel tuning, service management, and the secure configuration of our infrastructure.
- Stay up-to-date on the latest security threats and trends.
- Work closely with other engineers and security professionals to ensure a shared understanding of security risks and mitigation strategies.
Qualifications:
- B.S. in field of technology (Computer Science, Computer Engineering, etc.) with a minimum of 10 years experience in relevant field (Security Engineer, Linux Systems Administrator or similar role).
- Strong understanding of security principles and best practices.
- Proven experience with Linux and open-source tools such as Git, Elasticsearch or OpenSearch, and Wazuh.
- Proficient in scripting languages (Shell, Python) to develop security tools, automate monitoring tasks, and enhance system defenses.
- Strong understanding of networking protocols (TCP/IP, DNS, DHCP, VPN, etc.) and security implications, including network segmentation, firewalls, and VPNs.
- Experience with Ansible, writing and maintaining playbooks and roles.
- Excellent communication and collaboration skills.
- Ability to work independently and as part of a team.
- A passion for learning and staying up-to-date on the latest security trends.
- Able and willing to work full time in the Leesburg office.
- Must be able to obtain and maintain a U.S. Government-issued security clearance; therefore, U.S. citizenship is required
Preferred:
- Familiarity with DNS infrastructure and tools (BIND, Unbound, and/or PowerDNS)
- Experience with Fluent Bit or Fluentd for log collection, processing, and forwarding in distributed environments.
- Experience with Virtualization technologies (VMWare, Virtual Box, Proxmox)
- Experience with BSD
Compensation and Benefits:
We seek the best-and-brightest professionals at all levels so offer highly competitive compensation and an excellent benefits package. Company-sponsored benefits include: 6% 401(k) company match with immediate vesting, educational assistance up to $7,000 per year, 100% insurance premium subsidy for employees (75% for dependents), Anthem medical, Guardian dental, life and disability coverage, 3 weeks’ vacation, 2 weeks sick leave, and 11 holidays.
Quantum Leap is an Equal Opportunity Employer
\nCompany Description Quantum Leap is the leading technology services company focused on providing operationally focused solutions for select clientele within the United States Government (USG). Quantum Leap was founded by a team of technologists and engineers to focus exclusively on advancing USG interests against the Nation’s threats in an age of Strategic (Great Power) Competition.
We have built a highly collaborative workforce dedicated to countering those threats in an environment designed for success. This an entrepreneurial, fast-growing company, where the right candidate can join and really make a difference.
Company Description
Quantum Leap is the leading technology services company focused on providing operationally focused solutions for select clientele within the United States Government (USG). Quantum Leap was founded by a team of technologists and engineers to focus exclusively on advancing USG interests against the Nation’s threats in an age of Strategic (Great Power) Competition. \r\n \r\nWe have built a highly collaborative workforce dedicated to countering those threats in an environment designed for success. This an entrepreneurial, fast-growing company, where the right candidate can join and really make a difference.
- ...A leading technology services firm in Leesburg, Virginia, is seeking a Linux Systems Engineer to design, build, and maintain internal services. The ideal candidate will have over 8 years of experience, strong knowledge of Linux internals, and experience with automation...LinuxFull time
- ...founded by a team of technologists and engineers to focus exclusively on advancing USG interests... .... We are looking for a highly skilled Linux Systems Engineer to help design, build and... ...the latest Linux distributions, tools, security best practices, and DevOps trends....LinuxFull timeWork at officeImmediate start
$94.4k - $198.2k
Job Title: Systems Engineer Job Category: Engineering Time Type: Full time Minimum Clearance... ...the basic commands and navigation of the Linux operating system. These Qualifications... ...systems. Desired Certifications: Security+ or CISSP Certification What We can Offer...LinuxFull timeContract workWork experience placementFlexible hours$72.7k - $149.2k
Job Title: Information Systems Security Engineer (ISSE) Job Category: Security Time Type: Full time Minimum Clearance Required to Start: TS/SCI... ...Assurance Engineer, Cybersecurity Engineer, and/or Linux Systems Administrator. Active Top Secret clearance with SCI...LinuxFull timeContract workWork experience placementFlexible hours$103.8k - $218.1k
Job Title: Linux Systems Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with... ...responsible for designing, building, maintaining, and securing Linux-based systems to ensure reliability, performance, and...LinuxFull timeContract workWork experience placementLocal areaFlexible hours$144.1k - $190k
...Principal Systems Engineer-Defense We are growing and looking for a Principal Systems Engineer... ...Tools ~ Ability to operate and debug Linux and VxWorks based computing systems ~... ...advanced technology, enhanced safety, security, and performance. As a leading Modular...LinuxWork at office- ...Linux Systems Engineer Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission... ...-edge Linux based virtualization stack, streamline and secure applications, storage, physical servers, and install, troubleshoot...Linux
- ...Federal Chartis Federal is a premier systems engineering and integration firm specializing in... ...solutions for law enforcement, homeland security, and defense. As a trusted prime contractor... ...Install and configure Windows and Linux operating systems in enterprise environments...LinuxFor contractorsRemote workWorldwide
$92.3k - $166.85k
...seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting-edge Agile software... ...role, you’ll ensure the stability, security, and performance of the... ...Lead system administration for Linux and Windows-based systems in secure...LinuxContract workLocal areaImmediate startShift workDay shiftAfternoon shift- ...Leidos is seeking Software Engineer / Scrum Masters to join the Air Traffic... ...generation flight service and air traffic systems. This work aligns with the FAA’s... ...with Spring Framework, Spring Security, and Spring Boot Experience with Linux Experience with version control systems...LinuxContract workRemote work
- ...spectrum cyber, data operations, systems integration and intelligence... .... The team comprises engineers of multiple disciplines including... ...that is vital to our national security, apply today! Principal Cyber... ...experience with C/C++ on Unix/Linux platforms using Make/CMake...LinuxRelocationRelocation package
$175k - $260k
...Seeking experienced offensive security professionals to conduct... ...Analyze computer networks and systems to identify and assess security... ...operations Proficiency with UNIX/Linux and Windows operating systems... ...Experience with reverse engineering and exploit development...LinuxContract workWork experience placementImmediate start- ...Description Job Description TITLE: Sr. Systems Engineer (Citrix) LOCATION: Sterling, VA (... ...Infrastructure (VDI) environment within a secure, cloud-native platform supporting... ...virtual desktop solutions while maintaining Linux and Windows cloud-based infrastructure,...LinuxFull timeRelocation package
$10k
...Must have Sec+ or better. Two (2) engineers needed. Required Education,... ...minimum, meet DoDD 8140 requirements (Security+ CE Certification) Expertise working with Linux platforms and COTS applications... ...VDAs), hypervisors, and storage systems Optimize VDI performance...LinuxContract workTemporary workImmediate startFlexible hours$149.6k - $254.32k
...Job Description BAE Systems is looking for a Sr. Systems Engineer experienced in configuring, deploying, and maintaining... ...delivers engineering services for Linux and Windows cloud-based... ...constructs. The environment offers a secure-by-default configuration, implementing...LinuxFull timePart timeLocal area$100k - $150k
...Systems Reliability Engineer – Remote Bright Vision Technologies is a technology consulting and software development company delivering cloud... ...automation and tooling. Deep, hands-on experience operating Linux at scale, including networking, performance tuning, and...LinuxFull timeH1bLocal areaImmediate startRemote workVisa sponsorship- ...Systems Engineer at Altagrove Design, develop, integrate, and sustain AI-enabled applications, LLM/RAG solutions, semantic search, and AI-assisted workflows using approved models and platforms. Collaborate with technical teams and customer stakeholders to deliver mission...Full time
- ...cybersecurity firm in Virginia is seeking a Senior Principal Software Engineer to design and implement innovative HPC solutions. The ideal candidate will have over 8 years of C/C++ experience on Unix/Linux and a current TS/SCI clearance. Responsibilities include analyzing...LinuxRelocationRelocation package
- ...Nightwing Intelligence Solutions, LLC is seeking a lab and systems administrator to support provisioning, imaging, and access management... ...role requires DoD/ DHS suitability and the ability to work across Linux/Unix and macOS environments. The candidate will maintain Apple...Linux
$100k - $150k
...Reliability Monitoring Engineer – Remote Bright Vision Technologies is a technology consulting... ...give engineering teams confidence in the systems they run. The role spans the full... ...incident management tooling. Solid grasp of Linux internals, networking, and container...LinuxFull timeH1bLocal areaImmediate startRemote workVisa sponsorship- ...critical component of our nation’s safety and security. Make an impact by using your expertise... ...is smarter. Our work depends on a Systems Engineer joining our team to support Government... ...) builds for Windows, Apple, and Linux operating systems, STIF compliance, lifecycle...LinuxWork at office
- ...servers for enterprise, regional, and local systems. Install, configure, document, maintain,... ...system administration, specifically with Linux, including RHEL and Ubuntu, and UNIX in... ...Currently valid DoD 8570 certification such as Security+ CE, CASP, CISSP, or similar security...LinuxLocal area
$95.5k - $181.7k
...Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship... ...and existing security clearance required on day 1 Senior Systems Engineer - (Onsite) At RTX, the world largest aerospace and defense company...Full timeContract workTemporary workWork experience placementWork at officeRemote workRelocation packageFlexible hours- ...Job Description Job Description TITLE: Sr. Systems Engineer, Platform/Infrastructure LOCATION: Sterling... ...Infrastructure to deploy, administer, and sustain Linux-based platforms and COTS applications within secure cloud environments in support of national...LinuxFull timeRelocation package
$152.2k - $243.7k
Job Description Information security is an integral part of Visa's... ...Perform deep-dive analysis on systems, accounts, and networks to identify... ...including Cyber Defense and Engineering. Perform proactive threat... ...systems (Windows and Linux), as well as network services...LinuxWork experience placementWork at officeLocal area$10k
...minimum, meet DoDD 8140 requirements (Security+ CE Certification) Expertise working with Linux platforms and COTS applications... ...Ability to demonstrate solid engineering rigor Expert troubleshooting... ...with Cloud architecture and system design Experience working with...LinuxContract workTemporary workImmediate startFlexible hours- ...ongoing modernization and maintenance systems for the Department of Homeland Security (DHS), Customs and Border... ...+ Experience with modern software engineering tools and methodologies including... ...WebSphere etc.). Experience with Unix/Linux. Education Bachelor's degree in Computer...LinuxWork experience placementWork at officeFlexible hours
- ...risks. Requirements Knowledge of server/storage/network hardware systems and components. Excellent time management skills. Detail-... ...nights, weekends and holidays. IT Hardware Concepts knowledge (RAID, Linux/Unix, CLI, etc.) Good computer skills Able to stand and walk for...LinuxWork experience placementH1bShift workNight shiftRotating shiftDay shift
- ...seeking a motivated network engineer to implement, maintain and support... ..., identify critical security vulnerabilities, and recommend... ...granular access controls, monitor system performance and accessibility... ...operating systems, including Linux/Unix and MacOS Strong...LinuxContract workLocal areaImmediate start
$94.4k - $198.2k
...Title: DevOps Infrastructure Engineer Job Category: Engineering Time... ...with Red Hat Enterprise Linux (RHEL), advanced networking,... ...reliability with automation, security, and scalability. Responsibilities... ...to deliver secure, scalable systems Document installation...LinuxFull timeContract workWork experience placementLocal areaFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Linux System Security Engineer. Be the first to apply!

