Senior Network Engineer {DNS {Infoblox}

Overview

Senior Network Engineer on the Global Network Services team, designing, automating and operating the DNS, edge delivery and application delivery services that keep S&P Global's platforms fast, secure and available.

What you'll do

• Own the architecture and operation of enterprise DDI services, including Infoblox (DNS, DHCP, IPAM) and cloud DNS (AWS Route 53, Azure DNS/Private DNS, Google Cloud DNS), with hybrid DNS resolution across on-premises and multi-cloud environments.
• Integrate IPAM/DDI with the CMDB to keep IP, host and network records accurate and in sync, using discovery data and API-driven reconciliation to detect and correct drift.
• Design and operate DNS security controls, including DNSSEC, DNS firewall (e.g., Infoblox BloxOne Threat Defense) and protection against DNS attacks.
• Design and manage CDN, WAF, bot management and DDoS protection using Akamai and Cloudflare, including rule tuning, policy management and traffic analysis.
• Design and operate load balancing and traffic management, including F5, cloud-native load balancers (AWS ELB/ALB, Azure Application Gateway, GCP Load Balancing) and global server load balancing.
• Write, test and maintain Terraform modules to provision DNS, edge and load balancing services across AWS, Azure and GCP, setting shared-module patterns.
• Build Python tooling and API integrations (e.g., Infoblox WAPI, Akamai and Cloudflare APIs) to remove repetitive manual tasks and improve consistency.
• Build and improve CI/CD pipelines for changes, including automated validation, pre-deployment testing and policy checks.
• Develop automated configuration and compliance checks to catch deviations from approved standards (e.g., DNS records, WAF policies, IPAM allocations) early.
• Follow good engineering practice in shared repositories: version control, peer review, modular code and clear documentation.
• Serve as subject matter expert and third-line escalation point for complex incidents, leading root cause analysis.
• Collaborate with application, product, engineering and security teams to deliver changes meeting enterprise standards and compliance requirements.
• Plan and execute approved changes within agreed maintenance windows, with documented back-out steps, and join out-of-hours change windows as required.
• Produce and maintain architecture documentation, automation runbooks and standard operating procedures.
• Mentor engineers, share knowledge, and identify ways to reduce risk, improve efficiency and raise standards.

What you'll need

• 5+ years' experience in network or infrastructure engineering supporting hybrid, multi-cloud environments.
• Extensive hands-on experience with Infoblox DDI, including DNS architecture, DHCP and IPAM design and operations.
• Hands-on experience with DNS in Infoblox and at least two cloud DNS providers: AWS Route 53, Azure DNS, Google Cloud DNS.
• Strong experience with Akamai and/or Cloudflare, including CDN, WAF, bot mitigation and DDoS protection.
• Hands-on experience with load balancers (e.g., F5, NGINX, AWS ELB/ALB, Akamai GTM).
• Strong experience with Terraform and Infrastructure as Code, including module design and Git-based version control.
• Proficiency in Python for automation and API integration, following software development best practices (testing, code review).
• Solid understanding of core networking, DNS and HTTP protocols, able to read configuration as code and assess a change's impact before deploying it.
• Strong troubleshooting and analytical skills, with attention to detail.
• Ability to manage multiple projects and priorities simultaneously.
• Excellent written and verbal communication skills, and the ability to work effectively in a cross-functional team.

Nice to have

• Experience querying observability and logging platforms (e.g., Splunk, Grafana, Google SecOps) to analyze DNS, CDN/WAF and load balancer telemetry, build dashboards and alerts, and troubleshoot incidents.
• Experience building AI-assisted automation, such as agents that call Infoblox, Akamai, Cloudflare or cloud APIs (e.g., via MCP servers).
• Experience integrating IPAM/DDI with a CMDB or ITSM platform, including discovery-based synchronization and automated request workflows.
• Experience with low-code automation platforms.
• Active Directory infrastructure knowledge.
• Experience in a regulated environment with formal change and audit requirements.
• AI fundamentals.
• Relevant certifications, such as Infoblox DDI Professional, Terraform Associate, Akamai or Cloudflare certifications, or AWS, Azure or GCP networking certifications.

Details

• Grade 10; experience range 5 to 10 years.
• Shift time: 2 pm to 11 pm IST.
• Job location: Hyderabad, Gurugram, Noida or Bengaluru.
• Working model: Hybrid, twice a week work from office.