Sr. Network & Systems Engineer
CornerStone Technology Talent Services
Software Engineering
Irving, TX, USA
Posted on Jun 19, 2025
Job Title: Sr. Network & Systems Engineer
Location: Oklahoma City, OK (Onsite)
Employment Type: Full-time, Direct Hire
Industry: Industrial / Manufacturing / Engineering
Work Authorization: Must be eligible to work in the U.S. Without sponsorship
Travel: Required to offices in TX, OK, and DC as needed
On-Call: Required for off-hour support in a 24x7 environment
Job Overview
We're hiring a seasoned Sr. Network & Systems Engineer to play a key role in the design, implementation, and ongoing support of enterprise infrastructure. This position requires hands-on expertise with both system and network engineering and will join a high-performing IT operations team supporting a multi-site, multi-national business.
The ideal candidate is comfortable operating in complex, hybrid environments and is passionate about documentation, automation, and security. This role offers exposure to modern on-prem and cloud technologies and plays a strategic role in shaping infrastructure scalability and resilience.
Key Responsibilities
Minimum Qualifications
Location: Oklahoma City, OK (Onsite)
Employment Type: Full-time, Direct Hire
Industry: Industrial / Manufacturing / Engineering
Work Authorization: Must be eligible to work in the U.S. Without sponsorship
Travel: Required to offices in TX, OK, and DC as needed
On-Call: Required for off-hour support in a 24x7 environment
Job Overview
We're hiring a seasoned Sr. Network & Systems Engineer to play a key role in the design, implementation, and ongoing support of enterprise infrastructure. This position requires hands-on expertise with both system and network engineering and will join a high-performing IT operations team supporting a multi-site, multi-national business.
The ideal candidate is comfortable operating in complex, hybrid environments and is passionate about documentation, automation, and security. This role offers exposure to modern on-prem and cloud technologies and plays a strategic role in shaping infrastructure scalability and resilience.
Key Responsibilities
- Design, deploy, and maintain LAN, WLAN, and WAN infrastructure, including routing and VLANs.
- Install, configure, and manage Windows servers, SANs, switches, and firewalls.
- Lead virtualization and infrastructure automation initiatives using VMware.
- Manage and optimize site-to-site and client-server VPN environments.
- Administer systems hosted in Microsoft 365 and AWS (EC2).
- Implement and support enterprise backup, disaster recovery, and security protocols.
- Maintain and troubleshoot access control, CCTV, and power/UPS systems.
- Document network topology, configurations, and operational runbooks.
- Oversee datacenter operations and server health across multiple office locations.
- Provide mentorship to junior IT staff and collaborate cross-functionally with business units.
- Participate in IT asset procurement, vendor coordination, and budgeting support.
Minimum Qualifications
- 10 15 years of experience in IT infrastructure, networking, and security.
- Advanced proficiency in:
- VMware, SRA, and SonicWall (including SMA)
- Microsoft 365 (Outlook, Teams, SharePoint)
- Network switch configuration and VLAN routing
- Windows Server environments (2016/2019/2022)
- Experience with data center infrastructure management and colocation transitions.
- Strong documentation, troubleshooting, and problem-solving skills.
- Prior team leadership or mentorship experience.
- Microsoft Certified Professional (MCP)
- CompTIA A+, Network+, or Security+
- Other relevant networking/security certifications are a plus
- Must pass a 10-year background check and drug screen.
- Ability to lift up to 50 lbs (occasional heavy equipment work).
- Strong verbal and written communication skills.
- Excellent organizational and time-management skills.