> Markdown version of [/jobs/ext/472657-system-administrator-ii](https://www.wearedevelopers.com/jobs/ext/472657-system-administrator-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Administrator II - **Company:** Mutual Security Credit Union, Inc. - **Location:** Shelton, CT, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Backup Devices, Dynamic Host Configuration Protocol, Disaster Recovery, Domain Name System (DNS), Monitoring of Systems, Identity and Access Management, Virtual Private Networks (VPN), Network Troubleshooting, Microsoft Software, Windows Servers, Networking Basics, Routing, Network Segmentation, Microsoft SharePoint, Security Information and Event Management, User Provisioning Software, Virtualization Technology, Firewalls (Computer Science), Network Support, Fortinet, Cisco, Vulnerability Analysis, Vmware - **Published:** June 5, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=c91911c55816e09e ## About the Role Do you have experience in Windows support?, * 3+ years of systems administration experience * Strong experience with: + Microsoft 365 & Windows Server + Active Directory & identity management + Virtualization (VMware or Omnissa preferred) + Networking fundamentals, * Experience with FortiGate firewalls and network troubleshooting * Familiarity with regulated environments (FFIEC, GLBA, NIST) * Relevant certifications (Microsoft, VMware, Cisco) * Experience in financial services or similar industries * Strong problem-solving and troubleshooting skills * Ability to manage multiple priorities independently * Attention to detail in a regulated, compliance-driven environment * Interest in automation, modernization, and continuous improvement Physical and Mental Requirements * Full-time hours required, with additional hours as necessary to accomplish objectives, goals, and projects. * Sitting the majority of the time. * The ability to occasionally lift, push, pull or carry up to 50 pounds. * Occasional bending, squatting, twisting, climbing, reaching above, at or below shoulder level, and kneeling. * The ability to meet deadlines and maintain accuracy. * The ability to effectively interact with all personality types in stressful situations. * Excellent ability to communicate effectively. * Occasional travel out of state. ## Description Mutual Security Credit Union is seeking a skilled Systems Administrator II to support and enhance our growing technology environment. This role is responsible for maintaining secure, reliable, and high-performing systems that support daily operations and member services. You'll work across core infrastructure technologies including Microsoft 365, virtualization, identity platforms, and networking-while contributing to modernization and automation initiatives in a regulated financial environment. Major Responsibilities Infrastructure & Systems * Administer Windows Server, VMware/Omnissa virtualization, and SAN storage * Manage Active Directory, DNS, DHCP, and Group Policy * Support Microsoft 365 (Teams, SharePoint, OneDrive) * Oversee patching, backups, and disaster recovery processes * Maintain VDI environments (Omnissa Horizon preferred) Security & Network Support * Support firewalls, VPNs, routing, and network segmentation * Monitor and respond to alerts from security tools (SIEM, EDR, vulnerability scanning) * Partner with outsourced SOC for incident response and remediation Operations & Support * Provide Tier 2/3 escalated support * Manage user provisioning and access controls * Maintain documentation, diagrams, and system runbooks * Proactively monitor system performance and improve stability Projects & Improvement * Execute system upgrades and infrastructure changes * Contribute to automation, optimization, and standardization efforts * Recommend improvements to increase efficiency and scalability ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [System change: restart as developer?](https://www.wearedevelopers.com/magazine/39-system-change-restart-as-developer) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)