Overview
Senior Tier 3 Network Engineer (hands-on Cisco wireless) - ON SITE at Bydrec, Inc.
This is a 6-month contract-to-hire opportunity with a U.S.-based company.
The role requires 100% on-site presence at one of the preferred locations in Mexico (Mexico City).
Open to candidates based in Mexico.
Responsibilities
- Serve as Tier 3 escalation point for complex network issues, primarily focused on Cisco wireless (controllers, APs, RF, authentication).
- Troubleshoot and optimize WLAN/LAN/WAN performance (packet flow, RF interference, roaming, DHCP/DNS/RADIUS).
- Implement and support Cisco wireless technologies (9800/Catalyst controllers, DNA Center/Prime, ISE/802.1X).
- Contribute to SD-WAN and firewall device management to reduce dependency on the security team.
- Deliver project work for enterprise initiatives such as Avail and Project Dolly (site setup, cutovers, stabilization).
- Create and maintain operational documentation, diagrams, and runbooks for Tier 1/2 support.
- Collaborate with vendors (Cisco TAC/ePlus) and drive RCA and preventive measures.
- Participate in an eventual rotating on-call schedule supporting 24x7 operations.
Technical Requirements
Must-Have Skills
- 7+ years of experience as a Network Engineer with deep Cisco wireless expertise.
- Advanced troubleshooting of enterprise WLAN (RF fundamentals, roaming, QoS, spectrum analysis).
- Hands-on experience with Cisco wireless controllers/APs (9800/Catalyst) and management tools (DNA Center/Prime).
- Strong understanding of AAA/ISE, 802.1X, and certificate-based authentication.
- Proven background supporting large/global enterprise environments at Tier 3 level.
- Excellent documentation and cross-functional communication skills.
- English Level: B2+ (Conversational)
Desired Skills
- Experience with SD-WAN (Cisco SD-WAN/Viptela or similar).
- Familiarity with firewall administration (Cisco ASA/FTD/Firepower).
- Scripting or automation (Python, Ansible) and network observability tools.
Nice-to-Have Skills
- Cisco certifications such as CCNP Enterprise/Wireless; CCIE preferred but not required.
Employment details
- Seniority level : Mid-Senior level
- Employment type : Full-time
- Job function : Information Technology
- Industries : Wireless Services, Telecommunications, and Communications Equipment Manufacturing
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