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Linux Security Engineer Jobs in Virginia (NOW HIRING)

Work with DevOps teams to securely harden Linux based machines and cloudinfrastructure Basic Qualifications: * Bachelor's Degree * 5+ years of professional security engineering experience * Candidate ...

Designs, develops, engineers, and implements solutions that meet security requirements. * Analyzes ... Experience in Unix and Linux system administration desired * Background in INFOSEC operations ...

System Security Engineer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this ... Strong knowledge of operating system security (e.g., Linux, Windows) * Experience with endpoint ...

System Security Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this ... Strong knowledge of operating system security (e.g., Linux, Windows) * Experience with endpoint ...

System Security Engineer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this ... Strong knowledge of operating system security (e.g., Linux, Windows) * Experience with endpoint ...

FO Security Engineer Clearance: Secret Location: Springfield, VA The Security Engineering Team (SET ... Linux based), including laptops, desktops, PDAs, printers, mobile computing devices, mobile ...

Security Engineer

Springfield, VA · On-site

$120K - $140K/yr

FO Security Engineer Clearance: Secret Location: Springfield, VA The Security Engineering Team (SET ... Linux based), including laptops, desktops, PDAs, printers, mobile computing devices, mobile ...

Security Engineer

Springfield, VA · On-site

$120K - $140K/yr

FO Security Engineer Clearance: Secret Location: Springfield, VA The Security Engineering Team (SET ... Linux based), including laptops, desktops, PDAs, printers, mobile computing devices, mobile ...

Conduct security engineering analyses, risk assessments, and technical reviews. * Support ... Experience with Windows and Linux enterprise environments. Physical and Environmental Conditions ...

Senior Security Engineer

Arlington, VA · On-site

$131K - $180K/yr

Senior Security Engineer Tria Federal is seeking a Senior Security Engineer to support our ... Experience with Kali, Linux, and Windows Operating Systems. * Knowledge of static and dynamic code ...

Showing results 41-60

Linux Security Engineer information

What is a Linux security engineer?

Linux Security Engineers are IT professionals who specialize in protecting Linux-based systems and networks from security threats. They are responsible for designing, implementing, and maintaining security measures such as firewalls, intrusion detection systems, and vulnerability assessments. These engineers monitor system activity, respond to security incidents, and ensure compliance with security policies and regulations. Their expertise helps organizations keep their Linux infrastructure secure from both internal and external risks.

What are the key skills and qualifications needed to thrive as a Linux security engineer?

To thrive as a Linux Security Engineer, you need expertise in Linux system administration, cybersecurity principles, and vulnerability management, often supported by a degree in computer science or related certifications like CompTIA Security+ or RHCE. Familiarity with security tools such as SELinux, firewalls, intrusion detection systems (IDS), and scripting languages (e.g., Bash, Python) is typically required. Strong problem-solving abilities, attention to detail, and effective communication skills help you respond to incidents and collaborate with IT teams. These competencies are essential to protect systems, minimize risks, and ensure the security and integrity of critical infrastructure.

How does a Linux security engineer typically collaborate with other IT teams to enhance system security?

Linux Security Engineers work closely with network administrators, system administrators, and development teams to implement robust security measures. They often participate in cross-functional meetings to review security protocols, respond to incidents, and ensure compliance with company policies. Collaboration may involve conducting security audits, providing guidance on secure coding practices, and coordinating vulnerability assessments. This teamwork is essential to maintaining a secure infrastructure and promptly addressing emerging threats.

What is the difference between Linux Security Engineer vs Linux System Administrator?

AspectLinux Security EngineerLinux System Administrator
CertificationsCompTIA Security+, CISSP, Linux+Linux+, LPIC, RHCSA
Primary FocusSecurity vulnerabilities, threat mitigation, security policiesSystem setup, maintenance, user management
Work EnvironmentSecurity teams, cybersecurity firms, IT security departmentsIT departments, data centers, enterprise networks
ResponsibilitiesImplementing security measures, monitoring threats, incident responseInstalling OS, configuring servers, managing user access

The Linux Security Engineer specializes in protecting Linux systems from security threats, focusing on vulnerabilities and incident response. In contrast, the Linux System Administrator manages overall system health, setup, and maintenance. While both roles require Linux knowledge, security engineers focus more on safeguarding systems, whereas administrators ensure operational functionality.

What cities in Virginia are hiring for Linux Security Engineer jobs?

Cities in Virginia with the most Linux Security Engineer job openings:

Infographic showing various Linux Security Engineer job openings in Virginia as of August 2026, with employment types broken down into 86% Full Time, 11% Part Time, and 3% Contract. Highlights an 93% Physical, 2% Hybrid, and 5% Remote job distribution.

Security Engineer - Remote

Reston, VA • Remote

ICF
Business Management Consulting • 5 - 10K employees

Full-time

Re-posted 10 days ago


Key responsibilities

  • Perform Static Application Security Testing (SAST) and Dynamic Application Security Testing (DAST) to identify vulnerabilities in applications and infrastructure

  • Create and update threat models, assist with security incident response, and document security plans and contingency procedures

  • Review policies for compliance, work with development and DevOps teams to ensure secure coding and infrastructure hardening


Job description

* This role is contingent upon a contract award.
The Work:

ICFis looking for an enthusiasticSecurity Engineerto join our team and helpwithensuring our environments and applications meet Federal Security Standards.If you areSecurity Engineerinterested in applying yourexpertiseinSecurityEngineeringin a consulting environment, then this may be the role for you.

Job Location:

This position requires that the job be performed in the United States. If you accept this position, you should note that ICF does monitor employee work locations and blocks access from foreign locations/foreign IPaddresses, andalso prohibits personal VPN connections.

  • Our core work hours are 10am - 4pm Eastern Time with theoptionto start earlier or work later depending on your time zone.However, please note our client is on the east coast and may sometimes start a meeting earlier than 10:00which may require your participation.

  • Travel for a conference or to another ICF location for collaborationmayberequiredonce a year.

What You Will Do:

The selected candidate willbe requiredto work on multiple products and must be able to develop and present secure solutions and advice to technical teams as well as leadership. The candidate will furtherbe requiredto assess risks and advise on security standards, best practices, and solutions. All this must be done bymaintainingsecurity quality and customer satisfaction.Various tools are used to detectvulnerabilitiesand the security engineer documents these vulnerabilities and works with developers to get them corrected. The security engineer will need to work on a path to production for new applications ensuring all the documentation andappropriate stepsare taken and approved to have a highly secure production application and environment.

Responsibilities:

  • Perform Static Application Security Testing (SAST) toidentifypotential vulnerabilities in the application code and infrastructure

  • Perform Dynamic Application Security Testing (DAST)

  • Create and update threat models for FISMA systems

  • Assistand lead security incident response

  • Assistwith documentation of System Security plan and Contingency Plans for related projects

  • Ensure security systems are up to date and create documentation and planning for all security-related information, including incident response and disaster recovery plans

  • Review policies and procedures for compliance with applicable standards; and toidentifyareas of improvement for finding remediation

  • Interact with senior level management, including the ISSO

  • Usesecurity assessment tools such as Nessus,Snyk, AWSGuardDutyand AWS Inspector

  • Apply a demonstrated understanding of cryptography tosecureweb applications and data at rest

  • Work with development teams to review and correctcode written in higher level programming languages and scripts

  • Work with DevOps teams to securely harden Linux based machines and cloudinfrastructure

Basic Qualifications:

  • Bachelor's Degree

  • 5+ years of professional security engineering experience

  • Candidate must be able to obtain andmaintaina Public Trust

  • Candidate mustresidein the U.S.,be authorized towork in the U.S., and all work must be performed in the U.S.

  • Candidate must have lived in the U.S. for three (3) full years out of the last five (5) years

What We Would Like YouToBringWithYou:.

  • Hands on experience that includes:

    • NIST 80053 security controls

    • System hardening and implementation of DoD STIGs

    • Leading incident response activities

    • Data management and applied cryptography

    • Cloud security and infrastructure (AWS, Azure, and/or GCP)

    • Awareness of OWASP Top Ten and CWE Top 25

    • Linux command line usage (e.g., bash, sh, zsh)

    • Scripting in Python, Perl, or similar languages

  • Prior experience in consulting or healthcare is an advantage but not essential.

  • Strong engineering background

  • Application architecture experience

  • Federal Government contracting work experience

  • One or more of the following certifications is preferred:

    • OSCP/OSCE/OWSE

    • CISSP

    • GPEN

    • GXPN

    • Security +

    • CEH

Professional Skills:

  • Goodleadershipandteam-workingskills.

  • Highly effective analytical, problem-solving, and decision-making capabilities.

  • Excellent communication and interpersonal skills to interface effectively at all levels of the business.

  • Organized,detailed orientedand able to prioritize and multi-task.

  • Ability to self-organize,prioritizeand conduct work on multiple projects under tight deadlines in a fast-paced environment.

  • Prior experience working remotely full-time

#DMX-HES


Bot and Third-Party Applications

Please note that this application must be submitted directly by the applicant for consideration.Failure to do so may result in the application being excluded for consideration.Applicants needing an accommodation for disability or religious purposes in connection with the application process should contactCandidateaccommodation@icf.comfor assistance.

Working at ICF

ICF is a global advisory and technology services provider, but we're not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.

We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer.Together, our employees are empowered to share theirexpertiseand collaborate with others to achieve personal and professional goals. For more information, please read ourEEOpolicy.

We will consider for employment qualified applicants with arrest and conviction records.

Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals withsincerely heldreligious beliefs, in all phases of the application and employment process. To requestan accommodation,please emailCandidateaccommodation@icf.comand we will be happy toassist. All information you provide will be kept confidential and will be used only to the extentrequiredto provide needed reasonable accommodations.

Read more aboutworkplacediscriminationrightsor our benefit offerings which are included in theTransparency in (Benefits) CoverageAct.

Candidate AI Usage Policy

At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate orassistwith responses during interviews (whether in-person or virtual) is notpermitted. This policy is in place tomaintainthe integrity and authenticity of the interview process.

However, we understand that some candidates may require accommodationthat involves the use of AI. Ifsuch anaccommodation is needed, candidates are instructed to contact us in advance atcandidateaccommodation@icf.com. Weare dedicated to providingthe necessary support to ensure that all candidates have an equal opportunity to succeed.


Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.

The pay range for this position based on full-time employment is:

$98,614.00 - $167,644.00Nationwide Remote Office (US99)