[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Tata Consultancy Services jobs](https://jobs.opennash.com/companies/tata-consultancy-services/) · [Search jobs](/search/) Tata Consultancy Services · Saint Paul, MN # Network Security L3 SME Saint Paul, MN $100,000-$120,000 Security Last seen on Tata Consultancy Services’s official careers site on August 1, 2026; it may have closed since. [Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/jobs/422686J) [OpenNash Jobs](https://jobs.opennash.com/) / [Tata Consultancy Services](https://jobs.opennash.com/companies/tata-consultancy-services/) / Network Security L3 SME ## Job description Must Have Technical/Functional Skills Excellent network administration and troubleshooting skills. 2. Good Understanding and troubleshooting skills of TCP/IP, Switching &Routing protocols, MPLS, Load balancing 3. Knowledge and experience in STP, VTP, HSRP, VLAN, QoS and other switching technologies 4. Good Knowledge & Hands on experience on Palo Alto Firewalls and Juniper switches 5. Good Knowledge and experience on Cisco Wireless Controllers 6. Ability to understand the design and provide suggestions for improvements 7. Excellent analytical and organizational skills and the ability to work with multiple geographically dispersed teams 8. Excellent listening skills & ability to communicate clearly and fluently in English 9. Flexibility to work in shifts for 24x7 support 10. Strong team player with a constructive perspective and commitment to the success of the business 11. Ability to work on multiple concurrent tasks with conflicting priorities 12. ### Product knowledge - Routing Protocols, especially MPLS, BGP, EIGRP o Cisco Routers -- 7200, 3800, 3600, 2800, 2900, 881 o Firewalls -- Cisco ASA5550, Checkpoint, Palo Alto - Security -- IDS, IPS o Load Balancers – F5 o Switches -- Nexus 9K/7K/5K/2K, Cisco 9300/6500/4500/3750/2960, Juniper switches o WLAN – Wireless LAN Controllers, WCS, Cisco WLAN Controllers o PBR, PfR and ASRs - Zscaler (ZIA) o SD-WAN o Cisco ACI using Spine-Leaf Roles & Responsibilities Resolve critical network incidents escalated from L1 and L2 teams. Analyze complex routing, switching, wireless, and security issues. Perform root cause analysis (RCA) and implement permanent fixes. Review network architecture and recommend improvements and align with standards. Support datacenter and cloud networking ( Azure, AWS) manage hybrid connectivity and SD-WAN solutions. Abilities to manage and guide team for all LAN/Wi-Fi/ SDWAN issue. Generic Managerial Skills, If any Network Operations Management Network Security Compliance Stakeholder Management Team Leadership Vendor and Service Provider Management Salary Range- $100,000-$120,000 Per Annum TCS Employee Benefits Summary: Discretionary Annual Incentive. ### Comprehensive Medical Coverage Medical & Health, Dental & Vi sion, Disability Planning & Insurance, Pet Insurance Plans. ### Family Support Maternal & Parental Leaves. ### Insurance Options Auto & Home Insurance, Identity Theft Protection. ### Convenience & Professional Growth Commuter Benefits & Certification & Training Reimbursement. ### Time Off Vacation, Time Off, Sick Leave & Holidays. ### Legal & Financial Assistance Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing. #LI-SV2 #LI-KUMARAN