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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Administrator - **Company:** TEKSYSTEMS INC. - **Location:** Denver, CO, United States - **Experience:** Experienced - **Salary:** $60,000.0 - $105,000.0 - **Contract:** Temporary contract - **Skills:** Microsoft Windows, Active Directory, Collaborative Software, IP Pbx, Windows Servers, Windows PowerShell, Microsoft SharePoint, Software Requirements Analysis, Cisco WebEx, Microsoft Power Automate, Software Security, Software Troubleshooting, Microsoft Onedrive, Information Technology, Patch Management, Hardware Infrastructure, Cisco, Vmware - **Published:** September 24, 2026 - **Apply:** https://www.thejobnetwork.com/job/41c2ebb8-e448-427e-a562-16b6e4ae51aa/systems-administrator-telephony-collaboration ## About the Role * Bachelor's degree in Computer Science or a related field, or equivalent combination of education, certifications, and experience. * Valid Colorado Driver's License, or ability to obtain one. Experience * 5+ years of experience in Information Technology. * 2+ years supporting enterprise collaboration, telephony, or related systems preferred. * Experience with enterprise unified communications and voice platforms. Skills & Knowledge * Strong understanding of enterprise IT infrastructure and systems administration. * Ability to troubleshoot and resolve complex technical issues with minimal supervision. * Strong analytical, problem-solving, and critical-thinking skills. * Excellent verbal and written communication skills. * Detail-oriented with strong organizational and multitasking abilities. * Team-oriented with a positive attitude and customer-focused mindset. Required Technical Skills * Microsoft 365 Administration * Microsoft Teams * SharePoint Online * Exchange Online * Security Administration * Systems Troubleshooting & Support * Telephony Administration * Voice Systems Support * Unified Communications, * Primarily sedentary work environment. * Ability to lift up to 25 pounds. * Ability to communicate effectively and perform computer-based work for extended periods. ## Description We are seeking a Systems Administrator to join our Collaboration Team. This role will serve as the primary administrator and future subject matter expert for enterprise collaboration and communication platforms. The primary focus of this position is enterprise telephony and unified communications administration, with Microsoft Teams serving as the secondary area of responsibility. The ideal candidate will have hands-on experience supporting enterprise telephony, voice services, and collaboration platforms while helping guide the organization's transition to modern cloud-based communication technologies. Key ResponsibilitiesTelephony & Unified Communications * Serve as the primary administrator and subject matter expert for enterprise telephony and unified communications platforms. * Administer and support Cisco Call Manager, Webex Calling, and Webex Contact Center environments. * Manage voice services, call routing, extensions, contact center functionality, conferencing technologies, and related communications infrastructure. * Support Cisco Webex conferencing devices and collaborate with field technicians to troubleshoot telephony and conferencing issues across branch and office locations. Microsoft Teams & Collaboration * Administer and support Microsoft Teams, including configuration, governance, troubleshooting, and end-user support. * Partner with team members to support Exchange Online, SharePoint Online, OneDrive, and Microsoft 365 collaboration services. * Participate in future collaboration technology initiatives and platform enhancements. Current Projects * Support migration from on-premises Cisco Call Manager to Webex Calling. * Assist with modernization efforts involving cloud-based voice and collaboration services. * Participate in SIP trunk migrations from on-premises infrastructure to cloud-based solutions. * Evaluate and support future voice and collaboration technologies, including Microsoft Teams Calling. * Support continued growth and administration of Microsoft Teams following enterprise deployment. * Assist with future OneDrive and Microsoft Copilot rollout and governance efforts. Systems Administration * Install, maintain, monitor, and support assigned systems. * Troubleshoot software and hardware issues to ensure stable system performance. * Manage application security, Active Directory integration, permissions, and auditing. * Research system requirements for upgrades and future migrations. * Prepare and execute testing, validation, upgrades, and patch management activities. * Participate in disaster recovery testing and planning. * Develop PowerShell scripts and workflows as needed. * Recommend policies, standards, and best practices while ensuring adherence to security procedures. Collaboration & Support * Work closely with Help Desk teams, internal departments, end users, and vendors to resolve issues. * Assist with planning and implementing system enhancements and new features. * Evaluate hardware, software, and vendor solutions that align with business objectives. * Provide support during after-hours maintenance windows, upgrades, and outages when necessary., * VMware * Windows Server * PowerShell Scripting Preferred Qualifications * Cisco Webex Contact Center * Microsoft Teams Voice * SIP Trunk Administration * Exchange Online * SharePoint Online * OneDrive Administration * Microsoft Copilot * PowerShell Automation Work Environment * Professional office environment using standard office technology and equipment. * Regular travel to branch locations, meetings, and conferences may be required. * Participation in disaster recovery testing. * Occasional evening or weekend work for upgrades, maintenance, or outages. * On-call support may be required., * Industry certification related to assigned systems may be required within 12 months of hire. * This job description is not intended to be an exhaustive list of all duties, responsibilities, or qualifications associated with the position. ## Related Videos - [Systems Thinking for Performance: How to Diagnose and Fix Slow Systems without Guessing](https://www.wearedevelopers.com/videos/2103-systems-thinking-for-performance-how-to-diagnose-and-fix-slow-systems-without-guessing) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [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) - [Generating code with Angular schematics](https://www.wearedevelopers.com/videos/129-generating-code-with-angular-schematics) - [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) - [Develop enterprise-ready applications for Microsoft Teams with Azure resources on modern web technologies](https://www.wearedevelopers.com/videos/187-develop-enterprise-ready-applications-for-microsoft-teams-with-azure-resources-on-modern-web-technologies) ## Related Articles - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)