Sr. Sys Admin

Join a rapidly growing managed service provider as a Senior Systems Administrator in a fully onsite role based in Denton, TX. This position exists due to impressive client expansion, with over 30 to 35% growth in a single quarter, creating the need for strong technical talent to support a diverse customer environment. You'll work as part of a highly collaborative, generalist-minded team alongside an IT Director and Team Lead on a mix of on-premises and cloud-adjacent initiatives. The role involves supporting infrastructures ranging from traditional Windows environments to hybrid setups leveraging M365, Ignite, AWS, and various hypervisors. This is a hands-on position supporting customers both onsite and from the Denton office, where the team collaborates daily to work through tickets, review infrastructure needs, and execute project work.

This is an exceptional opportunity to join a culture-driven organization that prioritizes team fit as highly as technical capability. You'll step into white-glove, high-touch support working directly with multiple customers, ranging from hardware deployments to network hardware changes and hypervisor upgrades. The rapid growth means you'll have significant visibility and impact, helping shape a scaling environment while working with diverse technologies across multiple client infrastructures. This position is ideal for a mid-level administrator ready to step into a senior role, offering the chance to expand your automation strategy skills and mature operational processes. The team values strong troubleshooting ability, adaptability, and communication skills, and you'll have opportunities to think on your feet while representing the organization effectively in front of clients. With a salary range of $85,000 to $110,000 and a structured multi-step interview process, you'll join a collaborative environment where daily teamwork and knowledge sharing are core to the culture. The organization is a Microsoft Cloud Partner, providing opportunities for certification advancement and professional development.
Required Skills & Experience

• 5+ years of technical experience in system and network support
• Strong hands-on experience with Windows server environments (Server 2016, 2019, 2022)
• Virtualization experience with Hyper-V or VMware (ESXI)
• Foundational networking knowledge including VLANs, switching, and CCNA-level understanding
• Windows operating systems expertise (Windows 10/11)
• Knowledge of computer operating procedures, network protocols, and system software products
• Experience supporting multi-vendor environments
• Strong troubleshooting and problem-solving abilities
• Excellent communication skills for technical and non-technical audiences
• Ability to work effectively in a highly collaborative team environment
• Comfortable with fully onsite work schedule in Denton, TX
• Professional demeanor and ability to maintain composure during high-pressure situations
• Strong work ethic and high motivation

Desired Skills & Experience

• Bachelor's degree in Network Engineering, Computer Science, or relevant combination of training, education, and work experience
• Microsoft MCTS or higher certification
• 1 to 2 years of experience working with a Managed Service Provider (MSP)
• Experience supporting hybrid environments or cloud-adjacent setups (M365, AWS, Ignite)
• MDM experience with Intune or Jamf
• PowerShell scripting and automation skills
• Microsoft Exchange 2016, 2019 experience
• Microsoft Office 2019/365 administration
• Microsoft Cloud Solutions experience (Azure, DevOps, Microsoft 365, Intune, EntraID)
• Wireless infrastructure knowledge
• Knowledge of multiple backup technologies including Tape/Disk/Cloud and understanding of use cases
• Cyber security and best practices knowledge
• Experience supporting multi-site or multi-customer environments
• Project management and coordination experience
• Process improvement mindset

What You Will Be Doing
Tech Breakdown

• 40% Windows Server Administration (Server 2016, 2019, 2022, Active Directory, Group Policy)
• 25% Virtualization and Infrastructure (Hyper-V, VMware, hypervisor management)
• 20% Cloud and Hybrid Solutions (M365, Azure, Intune, EntraID, AWS)
• 15% Network Support (VLANs, switches, wireless infrastructure, troubleshooting)

Daily Responsibilities

• 50% Customer Support and Project Work (onsite visits, hardware deployments, infrastructure changes)
• 30% System Administration (server maintenance, updates, troubleshooting, ticket resolution)
• 20% Collaboration and Planning (team meetings, infrastructure reviews, process improvement)