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Freelance Network Penetration Testing Jobs (NOW HIRING)

Penetration Tester

Leesburg, VA · On-site

$125K - $155K/yr

Key Responsibilities This role will be responsible for conducting network, application (API, mobile, and web), and Social Engineering penetration testing. Specifically, you would: * Work closely with ...

Responsibilities : • Conduct web application, API, and network penetration tests to identify and validate security vulnerabilities. • Perform grey-box and black-box testing following NIST SP 800 ...

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Freelance Network Penetration Testing information

What is a freelance network penetration tester?

Freelance network penetration testers are independent cybersecurity professionals who assess the security of computer networks by simulating real-world attacks. They identify vulnerabilities, exploit security weaknesses, and provide recommendations to strengthen network defenses. Unlike in-house employees, freelancers work on a contract basis for various clients, offering flexible and specialized services. Their goal is to help organizations protect sensitive data and comply with security standards.

What are the key skills and qualifications needed to thrive as a freelance network penetration tester?

To thrive as a Freelance Network Penetration Tester, you need deep knowledge of network protocols, cybersecurity fundamentals, and vulnerability assessment, typically supported by certifications such as OSCP or CEH. Proficiency with tools like Nmap, Metasploit, Burp Suite, and Wireshark is essential for conducting effective tests and reporting findings. Strong analytical thinking, communication, and self-motivation help build client trust and deliver actionable results. These skills ensure security risks are accurately identified and remediated, protecting client assets and reputation.

What are some common challenges freelance network penetration testers face when working with multiple clients?

Freelance network penetration testers often face challenges such as managing varying client expectations, adapting to different network environments, and ensuring clear communication about findings and remediation steps. Each client may have unique security policies and varying levels of technical knowledge, which requires testers to be flexible and proactive in their approach. Additionally, juggling multiple projects can make time management and maintaining up-to-date documentation particularly important for success in this role.

What is the difference between Freelance Network Penetration Testing vs Freelance Web Application Testing?

AspectFreelance Network Penetration TestingFreelance Web Application Testing
CertificationsCEH, OSCP, GPENOSCP, GWAPT, CEH
Work EnvironmentNetwork infrastructure, servers, firewallsWeb applications, APIs, frontend/backend
Industry UsageIT, cybersecurity firms, consultingWeb development, e-commerce, finance
Common Search IntentAssess network security, identify vulnerabilitiesTest web app security, find web-specific flaws

Freelance Network Penetration Testing focuses on evaluating network infrastructure security, while Freelance Web Application Testing targets web app vulnerabilities. Both roles require cybersecurity certifications and involve testing for security flaws, but they specialize in different areas of cybersecurity testing.

What cities are hiring for Freelance Network Penetration Testing jobs?

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What are the most commonly searched types of Network Penetration Testing jobs?

The most popular types of Network Penetration Testing jobs are:

What states have the most Freelance Network Penetration Testing jobs?

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What other helpful pages are available for Freelance Network Penetration Testing?

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Infographic showing various Freelance Network Penetration Testing job openings in the United States as of July 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, 4% Contract, and 1% Nights. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution.

Penetration Tester

Leesburg, VA • On-site

$125K - $155K/yr

Other

Medical, Dental, Vision, Life, Retirement

Re-posted 10 days ago


Job description

Fortreum is a trusted leader in cloud and cybersecurity services, ranked among the Top 5 FedRAMP Third Party Assessment Organizations (3PAO). With the addition of Kovr.AI, we have expanded our capabilities to include advanced cyber risk quantification and analytics, enabling organizations to better understand, measure, and communicate risk. Together, we deliver independent, third-party, vendor-agnostic regulatory assessment and advisory services, alongside advanced cybersecurity offensive and compliance technical solutions. Our comprehensive service portfolio spans regulatory compliance frameworks including FedRAMP, CMMC, FISMA, SOC, PCI, ISO, and HIPAA.

Working with Fortune 500 companies and leading cloud service providers, we’ve built our reputation on service-delivery excellence and an unwavering commitment to client success. Our continued rapid growth creates exceptional opportunities for driven professionals to make their mark in the cybersecurity industry—guided by our core values: quality above all, a customer-driven mindset, autonomy, and personal accountability.

The Opportunity

On our team, you will have the opportunity to work with the best and brightest in the field. Fortreum team members have supported the biggest cloud providers in the world, and you will have the opportunity to learn from the best. We're seeking a seasoned Penetration Tester to join our team. Your expertise in cloud penetration testing (FedRAMP and other compliance frameworks) and security best practices will be essential in helping our customers.

Key Responsibilities

This role will be responsible for conducting network, application (API, mobile, and web), and Social Engineering penetration testing. Specifically, you would:

  • Work closely with all members of the team to conduct penetration testing of customer networks, applications (API, web, and mobile), and/or social engineering activities to achieve the customer’s objectives of the engagement

  • Advise customers on details of vulnerabilities, remediation strategies, and compliance requirements

  • Prepare final deliverables for delivery to customers within established timelines

  • Establish and maintain positive relationships with customers and stakeholders

  • Coordinate project readiness with internal teams and customers

  • Pursue continuous professional development in by achieving industry specific certifications (must be willing to meet FedRAMP certification requirements as outlined by A2LA)

  • Perform project readouts with customers to notify them of the outcome of their penetration test

  • Train and mentor junior team members

  • Interface with customers and other internal delivery team members through entire engagement, interacting will all levels of customer organizations

This is a customer facing role. Travel is expected to be limited in nature; however, you may be required to travel to client locations to deliver professional services periodically when needed.

Basic Qualifications
  • Bachelor’s Degree or 4 years of equivalent job experience

  • 2+ years of professional services experience

  • 3+ years of web application and network penetration testing experience

  • Proficient in at least one or more scripting languages (i.e., bash, python, PowerShell, ruby, etc.)

  • Strong technical acumen with regards to penetration testing methodologies

  • Familiarity with best practices frameworks such as OWASP, MITRE ATT&CK, OSSTMM, and/or PTES

Preferred Skills
  • eCPPT, OSCP, OSCE, OSWE, or GPEN certifications

  • Ability to quickly assess new and leading-edge technologies and concepts

  • Ability to manage multiple priorities simultaneously

  • Proven analytical and problem-solving skills

  • Ability to develop technical content for website updates, whitepapers, and blog posts that can be used both internally and by our clients to assist them in evaluating/building out their security programs

  • Ability to develop and maintain strong relationships with team members and clients

  • Familiarity with commonly used network architecture, network devices/services, development platforms, and software suites

  • Ability to work in a team environment with compliance specialists who conduct security control assessments in parallel

  • Comfortable supporting fast-paced team environments

  • Familiarity of penetration testing in cloud environments encompassing a variety of technology stacks

Posted Salary Range

$125,000 - $155,000 annual salary

What Fortreum Offers

We offer a competitive compensation package, where you will be rewarded based on your performance/outcomes and recognized for the value you bring to our business. Our benefits package includes medical insurance, dental insurance, vision insurance, 401K plan with a 4% match, company paid short-term disability, company paid long-term disability, company paid AD&D and life insurance, flex time off, annual bonuses, training stipends, certification reimbursements, access to over 30,000 free online training courses, personal cell phone allowance, new hire and annual home office stipend, spot awards and eleven paid holidays.

An Affiant and Equal Opportunity Employer

Fortreum is an Affiant and Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. If you’d like to view a copy of the company’s affirmative action plan or policy statement, please email hr@fortreum.com. If you have a disability and you believe you need a reasonable accommodation in order to search for a job opening or to submit an online application, please e-mail hr@fortreum.com or call 703-594-1460. This email and phone number is created exclusively to assist disabled job seekers whose disability prevents them from being able to apply online. Only messages left for this purpose will be returned. Messages left for other purposes, such as following up on an application or technical issues not related to a disability, will not receive a response.

In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.

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