Senior Cybersecurity & Infrastructure Engineer jobs in United States
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OnPoint · 23 hours ago

Senior Cybersecurity & Infrastructure Engineer

positionFairfax, VA
timeFull-time
remoteHybrid
senioritySenior Level
date5+ years exp

OnPoint is a vibrant technology and management consulting partner that specializes in delivering solutions in Cybersecurity and Infrastructure Services. They are seeking a highly skilled Senior Cybersecurity & Infrastructure Engineer to design, implement, and support secure enterprise infrastructure with a focus on Zero Trust architecture and Zscaler cloud security platforms.

Cyber SecurityEnterprise SoftwareInformation Technology
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Comp. & BenefitsbadNo H1BnoteU.S. Citizen Onlynote

Responsibilities

Design, implement, and maintain Zero Trust security architecture across enterprise networks and applications
Implement and manage Zscaler services (ZIA (Internet Access), ZPA (Private Access), ZDX (Digital Experience), CASB (Cloud Access Security Broker)) to secure user, application, and data access
Develop and enforce security policies aligned with Zero Trust principles (least privilege, continuous verification)
Monitor security events, investigate incidents, and coordinate remediation efforts
Partner with GRC (Governance, Risk, Compliance) teams to support compliance frameworks (NIST, ISO 27001, SOC 2)
Engineer and support enterprise infrastructure across on-prem, cloud (AWS, Azure, or GCP), and hybrid environments
Integrate security controls into network, server, and cloud infrastructure designs
Maintain and optimize identity and access management (IAM) integrations (SSO, MFA, IdP such as Azure AD or Okta)
Collaborate with networking teams on routing, firewalls, VPN replacements, and secure connectivity models
Automate infrastructure and security configurations using IaC tools (Terraform, ARM, CloudFormation)

Qualification

ZscalerZero Trust architectureCloud securityIdentityAccess managementInfrastructure automationEnterprise networkingScripting skillsTechnical troubleshootingProject management

Required

5+ years of experience in cybersecurity, infrastructure, or network engineering
Hands-on experience with Zscaler (ZIA and ZPA required; ZDX/CASB preferred)
Strong understanding of Zero Trust architecture and frameworks
Solid knowledge of enterprise networking (TCP/IP, DNS, routing, firewalls)
Experience securing cloud and hybrid environments
Familiarity with endpoint security, logging, and SIEM platforms

Preferred

Zscaler certifications (ZCCP, ZCSE)
Experience migrating from legacy VPNs to Zero Trust solutions
Cloud security experience (AWS Security Hub, Azure Defender, or equivalent)
Scripting or automation skills (Python, PowerShell, Bash)
Experience with EDR/XDR platforms (CrowdStrike, SentinelOne, Microsoft Defender)
Relevant experience as a project and/or program manager with demonstrated ability to perform as a senior level expert and serve as a senior project lead

Company

OnPoint

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OnPoint is delivering secure IT infrastructure, enterprise systems and solutions for the U.S. federal government.
dateFounded in 1994
location
Arlington, Virginia, USA
people-size11-50 employees
web-link
http://www.onpointcorp.com/

Funding

Current Stage
Growth Stage
Total Funding
$50M
Key Investors
Temasek Holdings
2022-06-27Series B· $50M

Leadership Team

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Jeff Mercurio, MS
Strategic Partnership Coordinator
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