Senior Network Administrator - IT

Posted Yesterday
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Chennai, Tamil Nadu, IND
In-Office
Senior level
Hardware • Other • Appliances
The Role
Senior Network Administrator responsible for WAN/LAN routing and switching, security, VPNs (IPsec/DMVPN), QoS and performance optimization. Operate and troubleshoot Cisco ISR/ASR, Nexus, Catalyst, F5 and WLAN gear; use NetFlow/SNMP and packet tools. Develop scripts and use configuration management/CI-CD tools. Provide L2 support, root-cause analysis, escalation management and 24x7 shift coverage.
Summary Generated by Built In
Flex is the diversified manufacturing partner of choice that helps market-leading brands design, build and deliver innovative products that improve the world.A career at Flex offers the opportunity to make a difference and invest in your growth in a respectful, inclusive, and collaborative environment. If you are excited about a role but don't meet every bullet point, we encourage you to apply and join us to create the extraordinary.

Job Description

To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Senior Network Administrator - IT (L2)  located in Chennai.

Reporting to the Senior Manager & the role involves

What a typical day looks like:

  • Strong technical expertise in areas such as Routing, Switching, Security and Traffic Optimization.

  • Technical expert with sharp skills in technologies such as Dynamic Routing Protocols, LAN switches, Wireless LAN technologies, Firewall configuration, SSL & IPSec VPN/DMVPN configuration, Cisco WAAS/vWAAS, AppNav Controllers, Performance Routing (PFRv3), cisco AVC.

  • Experience working with Network QOS

  • In-depth experience/operational knowledge working with SNMP, NetFlow, and Network Tools

  • Good knowledge and working experience on ISR & ASR with IOS XE platform.

  • Experience in handling complex production issues, major outages, root cause analysis (RCA) and excellent diagnostic, problem solving skills.

  • Effective communication with high degree of escalation management

The experience we’re looking to add to our team:

  • Any graduate or post graduate

  • 8+Years of IT experience.

  • 5+ years of experience in WAN alone, 5 to 7 years is more preferred

  • L2 Network Support.

  • Technologies/Protocols: TCP/IP, OSPF, BGP, HSRP, IPsec, VPN/DMVPN, MPLS. QoS, Multicast, dot1q, STP, VLANS, VTP, HSRP, VoIP, WLAN, DNS, DHCP, ARP, SNMP, NetFlow, Cisco vPC, FCoE, Cisco Fabric Path etc."

  • Products: Cisco Catalyst Switches, Cisco Routers (ISR & ASR with IOS XE platform), Cisco Nexus Switches, Cisco WAN Accelerators, F5 load-balancers, Cisco ASAs, Cisco & Aruba WLAN products, Packet analysis and debugging abilities using a variety of tools (e.g. Ethereal/Wireshark, tcp dump, etc.)

  • Proficient knowledge in scripting (Linux/Unix Shell scripts / Python / Ruby, etc,) and Hands-on experience in Configuration Management and Deployment tools (Chef / Puppet / Ansible / Terraform, etc.)

  • Good knowledge in CI/CD tools (Jenkins / TeamCity / Bamboo / Travis CI, etc,) and building CI/CD pipelines good knowledge in GIT (GitHub / GitLab / Bitbucket) or SCM tools (SVN, TFS, etc.)

  • Ready to work in shifts 24x7 support

Certifications

  • Cisco certification is preferred CCNA, CCNP/CCDP (Routing & Switching), CCIE.

What you’ll receive for the great work you provide:

  • Health Insurance

  • Paid Time Off

NK99

Job Category
IT

Flex pays for all costs associated with the application, interview or offer process, a candidate will not be asked for any payment related to these costs.

Flex does not accept unsolicited resumes from headhunters, recruitment agencies or fee based recruitment services. Flex is an Equal Opportunity Employer and employment selection decisions are based on merit, qualifications, and abilities. Flex does not discriminate in employment opportunities or practices based on: age, race, religion, color, sex, national origin, marital status, sexual orientation, gender identity, veteran status, disability, pregnancy status or any other status protected by law. Flex provides reasonable accommodation so that qualified applicants with a disability may participate in the selection process. Please advise us of any accommodations you request to express interest in a position by e-mailing: [email protected]. Please state your request for assistance in your message. Only reasonable accommodation requests related to applying for a specific position within Flex will be reviewed at the e-mail address. Flex will contact you if it is determined that your background is a match to the required skills required for this position. Thank you for considering a career with Flex.

Skills Required

  • Graduate or Postgraduate degree
  • 8+ years of overall IT experience
  • 5+ years of WAN experience (L2 Network Support)
  • Strong hands-on experience with TCP/IP, OSPF, BGP, HSRP, MPLS, QoS, Multicast, VLANs, STP, dot1q, VTP
  • IPsec/SSL VPN, DMVPN configuration and firewall configuration experience
  • Experience with Cisco ISR and ASR on IOS XE, Cisco Catalyst and Nexus platforms
  • Experience with WAN acceleration (Cisco WAAS/vWAAS), AppNav, PFRv3, Cisco AVC
  • Experience with network monitoring/telemetry: SNMP, NetFlow and packet analysis (Wireshark, tcpdump)
  • Hands-on experience with F5 load balancers, Cisco ASAs, Aruba WLAN products
  • Proficient scripting skills (Linux/Unix shell, Python, Ruby)
  • Hands-on experience with configuration management/deployment tools (Chef, Puppet, Ansible, Terraform)
  • Familiarity with CI/CD tools and pipelines (Jenkins, TeamCity, Bamboo, Travis CI) and SCM (GitHub, GitLab, Bitbucket, SVN, TFS)
  • Experience handling complex production issues, major outages and performing RCA
  • Strong communication and escalation management skills
  • Willingness to work 24x7 shift support
  • Cisco certifications preferred (CCNA, CCNP/CCDP, CCIE)

Flex Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Flex and has not been reviewed or approved by Flex.

  • Healthcare Strength Health, dental, and vision coverage begin on day one with options for dependents, alongside disability, life, mental‑health resources, and fertility/adoption and gender transition support. Plan choice and wellness programs indicate a robust healthcare offering.
  • Leave & Time Off Breadth Paid holidays, paid sick time, company‑wide shutdown days, and in some cases unlimited PTO point to extensive time‑off provisions. Flexible and hybrid work arrangements in certain teams further support work‑life balance.
  • Strong & Reliable Incentives Quarterly bonus checks and performance bonuses supplement base pay, and some roles can earn overtime at 1.5x. These elements strengthen the reliability of cash incentives.

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The Company
HQ: Austin, Texas
52,479 Employees
Year Founded: 1969

What We Do

We’re the manufacturing partner of choice that helps a diverse customer base design and build products that improve the world. We love to hear your thoughts, comments and ideas so feel free to like, share and comment away. Any question or opinion is good to go as long as it is respectful and falls within the scope of this page. Derogatory comments, spam and unsolicited selling are not welcome here and such posts will be removed.

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