Job description

Security Engineer/AdministratorLocation: Location: Hybrid Remote/On-Site in Austin, TXExperience Level: 5+ YearsJob Type: Full-TimeAbout the RoleCrux is seeking a highly skilled Security Engineer / Administrator to augment our clients IT team. This critical role merges advanced system administration with cutting-edge security engineering expertise to deliver robust, secure, and high-performing IT infrastructure. The ideal candidate will thrive in both on-premises and cloud-based environments, proactively driving operational excellence and fortifying cybersecurity defenses against evolving threats. Key ResponsibilitiesMaintain and manage on-premises and cloud-based server infrastructure (e.g., Windows, Linux, AWS, Azure).Perform system upgrades, security patching, and backup operations to ensure system reliability and data integrity.Manage Active Directory, group policies, and Identity Access Management (IAM) to enforce secure access controls.Monitor system performance, troubleshoot issues, and optimize infrastructure for efficiency and scalability.Support IT operations, including network administration, virtualization (e.g., VMware, Hyper-V), and automation (e.g., Undertake additional SysAdmin projects as needed, within the scope of IT operations.Collaborate with service providers to configure, monitor, and respond to security incidents, including log analysis and Security Information and Event Management (SIEM) tuning.Review vulnerability assessment outputs and support remediation efforts to mitigate risks.Python, PowerShell) and integrate security tools to enhance threat detection and response.Work with the Managed Security Operations Center (SOC) to triage and prioritize security findings.QualificationsEducation: Bachelors degree in Computer Science, Information Technology, Cybersecurity, or a related field (or equivalent experience).Experience:3+ years of experience in system administration, including managing on-premises and cloud-based servers.2+ years of experience in security engineering, with hands-on expertise in implementing security controls and incident response.Proven experience with Active Directory, IAM, and group policy management.VMware, Hyper-V) and automation tools (e.g., Experience with security tools such as firewalls, IDS/IPS, SIEM platforms (e.g., Splunk, ELK), and endpoint protection solutions.Technical Skills:Proficiency in managing Windows and Linux server environments.Knowledge of cloud platforms (e.g., AWS, Azure, Google Cloud).Scripting skills in Python, PowerShell, or Bash for automation and security tasks.Understanding of network protocols, firewall configurations, and VPNs.Microsoft Certified: Azure Administrator, AWS Certified SysOps Administrator, or similar.Ability to prioritize tasks in a fast-paced environment and adapt to changing project requirements.Additional RequirementsAbility to work independently and as part of a team, with a proactive approach to identifying and resolving issues.Must pass a background check and comply with client security policies.Work EnvironmentOn-site (5 days a week, 8am-5pm)Collaboration with Cruxs team, client IT staff, and third-party service providers, including a Managed SOC.Potential for additional personnel to be assigned based on project scope expansion (subject to approval).Work on diverse and impactful security projects across multiple industries.Join a team that values collaboration, excellence, and innovation in cybersecurity.Thank you for respecting this policy.

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