Sr Network Admin
Key Responsibilities
Network Operations & Architecture
- Monitor, analyze, and optimize network performance to maintain high availability and consistent service delivery.
- Architect and deploy scalable network solutions across LAN, WAN, wireless, VPN, and data center environments.
- Configure, maintain, and troubleshoot core networking components including routers, switches, firewalls, wireless systems, and operational technology (OT) network devices.
- Lead lifecycle management for network hardware and software, including upgrades and refresh planning.
Security & Risk Mitigation
- Identify vulnerabilities and enhance network defenses through continuous monitoring, patching, and remediation.
- Administer security technologies including firewalls, NAC, SIEM, and VPN platforms.
- Review network traffic, logs, and alerts to detect anomalies or emerging threats.
- Contribute to incident response efforts and help strengthen preventive controls.
Documentation & Standards
- Create and maintain detailed network diagrams, SOPs, technical documentation, and operational policies.
- Ensure consistency, compliance, and quality across all network‑related procedures.
Collaboration & Leadership
- Partner with systems, applications, and DevOps teams to ensure secure integration of new services and technologies.
- Serve as a subject matter expert and mentor to junior technical staff.
- Drive strategic discussions and lead technical planning for upcoming initiatives.
- Participate in an on‑call rotation to support critical issues.
- Occasional travel may be required in support of organizational initiatives such as integrations or site expansions.
Required Qualifications
- 7+ years of experience in network administration with progressively increasing responsibility.
- Expertise in designing, implementing, and managing enterprise-grade networks.
- Strong working knowledge of TCP/IP, routing protocols, switching, DNS, DHCP, authentication frameworks, and related core technologies.
- Hands‑on experience with firewalls, IDS/IPS, VPN solutions, and network access control.
- Proficiency with diagnostic tools and advanced troubleshooting techniques.
- Excellent communication, documentation, and technical analysis skills.
- Ability to work both independently and collaboratively in a fast-moving environment.
Preferred Qualifications
- Bachelor's degree in IT, computer science, cybersecurity, or a related discipline.
- Professional certifications such as CCNA/CCNP, Aruba/HPE certs, CISSP, or CompTIA credentials.
- Experience with cloud networking and security (preferably Azure).
- Familiarity with next-generation firewalls, enterprise Wi‑Fi platforms, access control systems, or SIEM technologies.
Success Indicators
- Ability to drive continuous improvement, innovation, and modernization.
- Demonstrated problem‑solving initiative, resourcefulness, and curiosity.
- Strong relationship‑building skills and the ability to influence cross‑functional teams.
- Effective communication and clarity in technical and non‑technical conversations.
- Consistent delivery of high-quality work with strong attention to detail.
- Contribution to scalable, sustainable network processes and long-term operational maturity.
FAQs
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