Senior Administrator - F5, Infoblox IPAM
India
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Job Description
Senior Administrator - F5, Infoblox IPAM
Chennai, Tamil Nadu

Job Summary

The Sr. Administrator in Support & Operations plays a critical role in delivering advanced technical support and operational excellence. This position focuses on troubleshooting complex issues, conducting thorough root cause analysis, and implementing effective solutions to enhance customer satisfaction and maintain robust security protocols.

 

We are looking for a skilled Network Engineer with strong experience in F5 Load Balancers (LTM/GTM) and Infoblox IPAM (DDI - DNS, DHCP, IP Address Management). The role involves managing enterprise traffic distribution, DNS/DHCP services, and IP address planning while ensuring high availability, security, and performance of critical applications.

Key Responsibilities

1. Provide Advanced Technical Support For F5 And Ddi-Infoblox/Efficient Ip Solutions By Troubleshooting Complex Incidents, Conducting Root Cause Analysis, And Implementing Timely Resolutions To Ensure Seamless Operations.
2. Collaborate With Cross-Functional Support Teams To Manage And Resolve Complex Tickets Within Agreed Slas, Ensuring A Proactive Approach To Security And Operational Efficiency.
3. Develop And Maintain A Comprehensive Knowledge Base By Updating Documentation And Managing Training Initiatives For New Team Members, Fostering A Culture Of Continuous Learning.
4. Monitor And Enhance Customer Satisfaction (Csat) Metrics Through First Call Resolution Practices, Minimizing Rejected Resolutions And Re-Opened Cases By Addressing Customer Issues Effectively.
5. Conduct Regular Assessments Of Security Postures And Implement Necessary Measures To Mitigate Potential Threats, Ensuring Adherence To Quality Standards And Regulatory Requirements.

 

Key Responsibilities F5 Load Balancing (LTM / GTM) • Configure, deploy, and manage F5 BIG-IP platforms (LTM, GTM/DNS). • Implement: o Virtual servers, pools, iRules, monitors o SSL offloading and certificate management • Design and manage application load balancing and traffic routing. • Maintain high availability configurations (Active/Standby, Sync-Failover). • Troubleshoot issues related to: o Application performance o Persistence, SSL, and traffic flow • Implement advanced features like: o Global DNS load balancing o DNS-based failover and geo-routing • Work with application teams for onboarding and optimization. Infoblox IPAM (DDI – DNS, DHCP, IPAM) • Administer and manage Infoblox DDI environment (NIOS / Grid architecture). • Perform: o IP address management (IP allocation, subnetting, tracking) o DNS zone configuration (forward/reverse zones, records) o DHCP scope and lease management • Configure and manage: o Grid Master and Grid Members o High Availability (HA), failover, and redundancy setups • Execute: o Network additions/deletions and IP updates o Network discovery and device onboarding • Troubleshoot DNS, DHCP, and IPAM-related issues. • Generate custom reports and analytics for IP utilization and capacity. Integration & Automation • Work on Infoblox APIs (WAPI) for integration with external tools. • Support integration with: o ServiceNow or ITSM tools o Monitoring and logging tools (e.g., Splunk) • Automate DNS/IPAM provisioning and reporting where applicable. Operations & Support • Provide L2/L3 support for F5 and Infoblox environments. • Perform: o Incident management and root cause analysis o Change implementation and validation • Monitor service health and ensure uptime of critical services. • Coordinate with vendors (F5/Infoblox TAC) for issue resolution. • Maintain detailed documentation: o Network diagrams o IP schemas o SOPs and runbooks Security & Compliance • Implement DNS and traffic security controls (DNSSEC, RPZ, ACLs). • Ensure secure traffic handling through F5 policies and SSL configurations. • Maintain compliance with enterprise security and audit requirements.

Skill Requirements

1. Proficient In F5 And Ddi-Infoblox/Efficient Ip Technologies.
2. Strong Analytical Skills For Root Cause Analysis And Troubleshooting Complex Technical Issues.
3. Solid Understanding Of Itil Framework And Incident Management Processes.
4. Excellent Communication Skills For Effective Collaboration And Customer Interaction.

 F5 Skills • Strong experience with: o F5 BIG-IP LTM & GTM/DNS o Load balancing concepts and traffic management • Knowledge of: o iRules, SSL, persistence, health checks o High availability and failover Infoblox / DDI Skills • Deep knowledge of: o DNS, DHCP, IPAM (DDI) • Hands-on experience with: o Infoblox Grid architecture o DNS record management, DHCP scopes, IP allocation • Strong troubleshooting experience in DNS/DHCP environments Networking Skills • Strong fundamentals in: o TCP/IP o Routing and switching o Subnetting and VLANs • Protocols: o DNS, HTTP/HTTPS, SMTP • Understanding of network traffic flow and packet analysis Automation & Tools • Basic scripting/automation knowledge • Experience with: o APIs (Infoblox WAPI) o Monitoring tools (Splunk, SNOW, Wireshark) Qualifications • Bachelor’s degree in Computer Science / IT / Electronics / Telecommunications • Experience in enterprise network / application delivery environments Preferred Certifications • F5 Certified (CA, CTS, or equivalent) • Infoblox DDI Certification (DDIA / DDIP) • CCNA / CCNP (Networking) Preferred Experience • Experience in large enterprise/global environments • Exposure to cloud DNS/IPAM or hybrid environments • Integration experience with ITSM and monitoring platforms Soft Skills • Strong troubleshooting and analytical skills • Clear communication and stakeholder coordination • Ability to work in 24x7 support environments if required

Other Requirements

1. Optional But Valuable: F5 Certified Administrator (F5-Ca), Infoblox Certified Network Automation Engineer (Nce)

 F5 Skills • Strong experience with: o F5 BIG-IP LTM & GTM/DNS o Load balancing concepts and traffic management • Knowledge of: o iRules, SSL, persistence, health checks o High availability and failover Infoblox / DDI Skills • Deep knowledge of: o DNS, DHCP, IPAM (DDI) • Hands-on experience with: o Infoblox Grid architecture o DNS record management, DHCP scopes, IP allocation • Strong troubleshooting experience in DNS/DHCP environments Networking Skills • Strong fundamentals in: o TCP/IP o Routing and switching o Subnetting and VLANs • Protocols: o DNS, HTTP/HTTPS, SMTP • Understanding of network traffic flow and packet analysis Automation & Tools • Basic scripting/automation knowledge • Experience with: o APIs (Infoblox WAPI) o Monitoring tools (Splunk, SNOW, Wireshark) Qualifications • Bachelor’s degree in Computer Science / IT / Electronics / Telecommunications • Experience in enterprise network / application delivery environments Preferred Certifications • F5 Certified (CA, CTS, or equivalent) • Infoblox DDI Certification (DDIA / DDIP) • CCNA / CCNP (Networking) Preferred Experience • Experience in large enterprise/global environments • Exposure to cloud DNS/IPAM or hybrid environments • Integration experience with ITSM and monitoring platforms Soft Skills • Strong troubleshooting and analytical skills • Clear communication and stakeholder coordination • Ability to work in 24x7 support environments if required
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 226,300 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending December 2025 totaled $14.5 billion.
23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.