Job Summary
HCLTech is looking for an accomplished Load Balancer Expert for its Noida location. This is a critical technology role responsible for engineering, operational stability, security, service resilience and continuous improvement across a complex enterprise environment. The role requires deep hands-on expertise, disciplined change execution, strong troubleshooting capability and effective collaboration with infrastructure, application, security, service-management and vendor teams.
Key Responsibilities
- Engineer F5 BIG-IP LTM/DNS (GTM), NGINX, HAProxy and cloud load-balancing services; configure VIPs, pools, nodes, health monitors, profiles, persistence, SNAT/NAT and SSL/TLS offload.
- Design Layer 4/Layer 7 traffic management, reverse proxy, content switching, redirects, header manipulation, HTTP/2, certificates, cipher standards, iRules/policies, DNS/GSLB and multi-site failover.
- Troubleshoot packet flow, resets, latency, SSL handshakes, health checks, persistence, routing, asymmetric traffic and application dependencies using logs, tcpdump/Wireshark and platform analytics.
- Implement HA, clustering, upgrades, patching, backup/restore, capacity planning, monitoring, RBAC, change control and automation through APIs, Ansible or Terraform.
Skill Requirements
Technical Profile – Load Balancer Expert
Core technical skills:
• Engineer F5 BIG-IP LTM/DNS (GTM), NGINX, HAProxy and cloud load-balancing services; configure VIPs, pools, nodes, health monitors, profiles, persistence, SNAT/NAT and SSL/TLS offload.
• Design Layer 4/Layer 7 traffic management, reverse proxy, content switching, redirects, header manipulation, HTTP/2, certificates, cipher standards, iRules/policies, DNS/GSLB and multi-site failover.
• Troubleshoot packet flow, resets, latency, SSL handshakes, health checks, persistence, routing, asymmetric traffic and application dependencies using logs, tcpdump/Wireshark and platform analytics.
• Implement HA, clustering, upgrades, patching, backup/restore, capacity planning, monitoring, RBAC, change control and automation through APIs, Ansible or Terraform.
Other Requirements
DETAILED ROLE ACCOUNTABILITIES
- Design, deploy and support highly available application-delivery solutions using F5 BIG-IP, NGINX, HAProxy and applicable cloud load balancers.
- Create and optimize VIPs, pools, profiles, monitors, persistence, SNAT/NAT, SSL offload, content switching, redirects and traffic policies.
- Troubleshoot end-to-end Layer 4/Layer 7 flows, TLS handshakes, resets, latency, routing asymmetry, health checks and application dependencies.
- Plan upgrades, certificate renewals, platform lifecycle, backup/recovery, capacity and high-availability testing.
- Automate standard provisioning, validation and reporting through APIs, Ansible or Terraform.
DESIRED CERTIFICATIONS (GOOD TO HAVE)
- F5 Certified BIG-IP Administrator
- F5 Certified Technology Specialist - Local Traffic Manager
- NGINX certification/training
- AWS Certified Advanced Networking - Specialty or Microsoft Certified: Azure Network Engineer Associate
- ITIL 4 Foundation.
PROFICIENCY EXPECTATIONS
Competent (L3): Independently deploy standard virtual servers and policies, resolve common incidents, execute approved changes, maintain documentation and meet operational SLAs.
Proficient (L4): Own architecture and complex troubleshooting, lead migrations/upgrades and major incidents, optimize security/performance, define standards and mentor L3 engineers.
CANDIDATE PROFILE
- Strong hands-on experience in the stated technology domain and enterprise operations environment.
- Ability to independently troubleshoot complex issues, document solutions and collaborate with cross-functional stakeholders.
- Strong communication, change management, incident management and problem-solving skills.
- Willingness to work from the Noida location and support operational requirements as applicable.
REQUIRED EXPERIENCE AND CAPABILITIES
- Bachelor’s degree in Computer Science, Information Technology, Engineering or a related discipline, or equivalent relevant experience.
- Demonstrated hands-on experience supporting business-critical enterprise environments and handling complex incidents and changes.
- Working knowledge of ITIL-aligned incident, problem, change, request and knowledge-management processes.
- Ability to create HLD/LLD, implementation plans, rollback plans, SOPs, runbooks, RCA documents and operational reports.
- Strong stakeholder communication, ownership, analytical thinking and collaboration across application, infrastructure, security and vendor teams.
- Ability to participate in operational support, planned changes and major-incident activities according to business requirements.
KEY DELIVERABLES
- Stable, secure and supportable technology services with improved availability, performance and operational readiness.
- Timely resolution of complex incidents, complete root-cause analysis and closure of preventive actions.
- High-quality technical designs, implementation evidence, knowledge articles and support documentation.
- Controlled delivery of upgrades, migrations, standardization, automation and service-improvement initiatives.
- Clear technical communication with stakeholders, service owners, partner teams and technology vendors.
SELECTION FOCUS
- Depth of hands-on technical knowledge and ability to explain design and troubleshooting decisions.
- Experience with enterprise-scale operations, critical incidents, controlled changes and service restoration.
- Quality of documentation, automation mindset, security awareness and approach to continuous improvement.
Communication, ownership and ability to work eff