Leidos Security Enterprise Solutions (SES) is seeking a highly skilled Cybersecurity Engineer to work onsite at our Security Enterprise Solutions (SES) facility in Tewksbury, MA. This role offers the chance to make a significant impact on aviation security while advancing your career.

We’re looking for someone with:

Self-starting individual with the right attitude, aptitude to identify, take ownership of and solve challenging problemsInterest in continual learning and development of the team and themselves.Ability to work collaboratively and independently to develop creative solutionsPassion for securing and maintaining IT and OT systems critical to national and international securityPrimary ResponsibilitiesIntegrate security requirements into IT systems.Conduct vulnerability assessmentsMaintain and troubleshoot secure Windows and Linux baselinesImplement system hardening and complianceImplement and integrate static and dynamic code analysis toolsResearch and evaluate Cybersecurity tools and methodologiesCollaborate with cyber and product architects to harden platforms and tool chainsDefine and enforce secure-by-default software engineering practicesDocument and automate best practicesRequired QualificationsBachelor’s degree in Computer Science, Cybersecurity, Engineering, or a related field. Additional experience, certifications or training may be considered in lieu of degree.3+ years of relevant IT/ DevOps/Security Engineering experience.Active DoD Approved 8570/8140 Baseline Certification or ability to obtain within 6 months (e.g. CompTIA Security+, Network+, CySA+, Microsoft Azure Fundamentals, etc).Beginner to intermediate Windows, Linux and Networking skillsExperience in hardening modern operating systems and implementing security engineering best practices.

Preferred QualificationsProgramming/Scripting: Python, Bash, PowerShell, C++, C#, Java (minimum)Networking: Strong understanding of network architecture - Experience with core infrastructure services administration such as AD, DNS, DHCP, and File Server administrationExperience with DISA STIGs and/or CIS Benchmarks; deploying secure images with Ansible, SteelCloud, and/or Microsoft Deployment Toolkit (MDT)Experience with NIST Cybersecurity Framework, ISO 27001, NIST 800-171 (CMMC), or Risk Management Framework (RMF).

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting:August 4, 2025

For 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.

Pay Range:Pay Range $85,150.00 - $153,925.00

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.