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System Engineer- Cyber Security Engineering Focus
St Louis, MOMarch 20th, 2026
OverviewThis position plays a hands-on role securing systems that support critical Defense and Intelligence missions. This position is focused on applying risk management frameworks, engineering security controls, and maintaining system authorizations for cloud and on-prem environments. You'll work closely with other system engineers, administrators, and program teams to ensure systems are built, assessed, and operated in compliance with DoD and NIST requirements. From managing RMF and ATO packages to driving vulnerability remediation and system hardening, this role is central to maintaining secure, mission-ready systems throughout their lifecycle. Esri has a Relocation Assistance Program and can provide support with relocating to the St. Louis, MO area for this position.ResponsibilitiesApply RMF processes to support system Assessment & Authorization (A&A), including control selection, implementation, assessment, and continuous monitoringDevelop, review, and maintain security documentation such as SSPs, POA&Ms, SARs, and ATO artifacts in tools such as XACTA or eMASSConduct vulnerability assessments and compliance scans (such as ACAS) and track remediation of findings and IAVM requirementsImplement and validate security controls aligned with NIST 800-53, CNSSI 1253, and related DoD guidanceSupport system hardening, patching, and configuration management in compliance with STIGs for Linux, Windows, and network devicesMonitor systems for security events and supporting incident response and risk mitigation activitiesAssess security impacts of system changes and supporting configuration control boards (CCBs)Collaborate with system engineers, administrators, and DevSecOps teams to integrate security throughout the system lifecycleProvide cybersecurity risk input to program leadership, Authorizing Officials (AOs), and stakeholdersRequirements8+ years of professional experience in a similar position, supporting similar responsibilitiesProfessional experience with RMF, A&A, POA&M, and ATO documentation (XACTA/eMASS)Hands-on experience with vulnerability scanning and compliance tracking (ACAS, IAVM)Experience securing Linux and Windows systems, STIGs, patching, and system hardeningKnowledge of NIST 800-series publications and incident response processesDoD 8570 IAT Level II or higher certification (such as Security +, CySA +, CISSP)Strong analytical, communication, and collaborative skillsUS citizenship with Active or Current (within 2 years of active) Top Secret Security Clearance with SCI eligibilityBachelor's degree in Computer Science, Cybersecurity, Information Technology or STEM related fieldRecommended QualificationsScripting or development experience (Python, Java, React)DevSecOps tools and pipeline experienceExperience with Linux (Red Hat/CentOS), databases, web apps, or big data platformsFamiliarity with Agile environments and tools (Jira, Confluence)Experience with NIST SP 800-171 and System Security Engineering (SSE)Master's degree in Computer Science, Cybersecurity, Information Technology or STEM related fieldTotal RewardsEsri's competitive total rewards strategy includes industry-leading health and welfare benefits: medical, dental, vision, basic and supplemental life insurance for employees (and their families), 401(k) and profit-sharing programs, minimum accrual of 80 hours of vacation leave, twelve paid holidays throughout the calendar year, and opportunities for personal and professional growth. Base salary is one component of our total rewards strategy. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. A reasonable estimate of the base salary range is: $117,520 USD - $197,600 USD.The CompanyAt Esri, diversity is more than just a word on a map. When employees of different experiences, perspectives, backgrounds, and cultures come together, we are more innovative and ultimately a better place to work. We believe in having a diverse workforce that is unified under our mission of creating positive global change. We understand that diversity, equity, and inclusion is not a destination but an ongoing process. We are committed to the continuation of learning, growing, and changing our workplace so every employee can contribute to their life's best work. Our commitment to these principles extends to the global communities we serve by creating positive change with GIS technology. For more information on Esri's Racial Equity and Social Justice initiatives, please visit our website here.If you don't meet all of the preferred qualifications for this position, we encourage you to still apply!Esri is an equal opportunity employer (EOE) and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. If you need reasonable accommodation for any part of the employment process, please email askcareers@esri.com and let us know the nature of your request and your contact information. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this e-mail address.Esri PrivacyEsri takes our responsibility to protect your privacy seriously. We are committed to respecting your privacy by providing transparency in how we acquire and use your information, giving you control of your information and preferences, and holding ourselves to the highest national and international standards, including CCPA and GDPR compliance.J-18808-Ljbffr
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