Leidos is searching for a highly motivated product tester to support Common Criteria evaluation efforts with Leidos’ Accredited Testing & Evaluation (AT&E) Laboratory. The ideal candidate is an independent performer who can perform commercial off-the-shelf (COTS) IT product security tests with minimal supervision, including devising product-specific test procedures and performing any configuration procedures necessary to enable the execution of tests. The candidate is also expected to interact with product developers and other technical staff to develop necessary product knowledge and assist in troubleshooting when tests cannot be successfully executed. General IT product knowledge such as networking, operating systems, communications security, identity and access management, and PKI is essential. This is a fast-paced position requiring time management skills to perform multiple product certification efforts in parallel and a thorough understanding of how product security requirements may apply to a wide variety of hardware and software products. The ideal candidate is also able to assist with setup and maintenance of laboratory infrastructure.
This position will be based in Columbia, MD. Part-time telework is acceptable but the selected candidate will be expected to be in-office for regular periods as needed to support efforts that must be performed locally. Therefore, only local candidates will be considered.
Primary Responsibilities:
Work with IT product vendors to determine applicability of IT product security standards to products
Interpret IT product security standards to determine the compliance or noncompliance of product design based on research of product documentation and interviews with technical personnel
Devise, execute, and document security functional testing to justify how tested products are compliant with IT security standards
Conduct product troubleshooting and provide recommendations when noncompliant findings are made
Conduct vulnerability research to determine if documented security vulnerabilities are adequately mitigated by product configuration and patch level
Produce documentation that describes how IT products conform to security requirements
Develop user guidance for instructions on placing products into secure configurations
Justify completeness, consistency, accuracy, and sufficiency of product test result to third-party quality reviewers
Assist in maintenance of the physical and digital infrastructure of the laboratory, including physical setup, server administration, backups, and patching
Basic Qualifications:
Bachelor's degree (or equivalent) and 4+ years of related experience
Must have experience with network traffic and protocol analysis using products like Wireshark, TShark, or tcpdump to validate product compliance
Familiarity with general IT security products and their operation (e.g., routers/switches, firewalls, intrusion detection/prevention systems, operating systems, software applications, mobile devices)
General knowledge of the role that various IT products and concepts serve in information security (e.g., full disk encryption, mobile device management, remote access/VPN, etc.)
Experience with software development lifecycle methods (e.g., agile) and tools (e.g., Subversion, GitLab, Confluence, JIRA)
Strong applied knowledge of network, transport, and application layer communications and security (e.g., TCP/IP, TLS, IPsec, SSH, LDAP)
Working knowledge of applied cryptography (e.g. X.509, PKI, post-quantum standards)
Strong customer-facing oral and written communication skills
Preferred Qualifications:
Previous experience with Common Criteria certification or related standards (FIPS 140, FedRAMP, NIST SP 800-53) is desirable.
Software development or DevOps experience a plus.
Experience with administration of Windows/Linux systems and version control/ticketing systems (e.g., JIRA, GitLab, Subversion)
One or more technical professional certifications related to information technology communications or security (e.g., CEH, CCNA, CISSP)
Knowledge of scripting/programming (e.g., Python) and familiarity with machine-readable data exchange methods (e.g., JSON, REST)
Please note: while the salary range is wide, the specific salary range for this position is going to be around $120,000.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:September 10, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Skills Required
- Bachelor's degree or equivalent
- 4+ years of related experience
- Experience analyzing network traffic and protocols using Wireshark, TShark, or tcpdump
- Familiarity with IT security products such as routers, switches, firewalls, intrusion detection/prevention systems, operating systems, software applications, and mobile devices
- Knowledge of information security concepts including full-disk encryption, mobile device management, and VPN or remote access
- Experience with software development lifecycle methods and tools such as Agile, Subversion, GitLab, Confluence, and JIRA
- Applied knowledge of network, transport, and application layer communications and security, including TCP/IP, TLS, IPsec, SSH, and LDAP
- Working knowledge of applied cryptography, including X.509, PKI, and post-quantum standards
- Strong customer-facing oral and written communication skills
- Previous experience with Common Criteria certification or related standards such as FIPS 140, FedRAMP, or NIST SP 800-53
- Software development or DevOps experience
- Experience administering Windows and Linux systems
- Experience with version control and ticketing systems such as JIRA, GitLab, or Subversion
- Technical professional certification such as CEH, CCNA, or CISSP
- Knowledge of scripting or programming, such as Python
- Familiarity with machine-readable data exchange methods such as JSON and REST
- Must be a local candidate able to work in-office in Columbia, Maryland as needed
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.







