Senior Network Engineer {DNS {Infoblox}

S&P Global Inc.; Dadri; Hybrid; INR 1,200,000 - 1,800,000; Full time

Job summary

S&P Global is seeking a Senior Network Engineer to design, automate, and operate DNS, edge delivery, and application delivery services across hybrid on‑prem and multi‑cloud environments in India. You will work within Global Network Services to keep platforms fast, secure, and highly available, using Infoblox, Akamai, Cloudflare, and Terraform.

The role emphasizes IaC, incident response, collaboration with security and engineering teams, and mentoring junior engineers.

Qualifications

• 5+ years in network or infrastructure engineering in hybrid/multi-cloud.
• Hands-on Infoblox DDI—DNS, DHCP, IPAM.
• Experience with AWS Route 53, Azure DNS or Google Cloud DNS.
• Experience with CDN, WAF, DDoS protection (Akamai/Cloudflare).
• Proficiency in Terraform and Python for automation.
• Strong troubleshooting and cross-functional collaboration.

Responsibilities

• Own DDI, DNS, IPAM architecture and operations.
• Design and manage CDN, WAF, and DDoS protections.
• Implement IaC pipelines and Terraform modules.
• Develop automation tools and API integrations.
• Lead incident analysis and root-cause investigations.
• Collaborate with security, product, and engineering teams.

Skills

DNS architecture

Infoblox DDI

Cloud DNS

Akamai/Cloudflare CDN

Load balancing

Terraform

Python automation

Networking protocols

Tools

Infoblox

Terraform

AWS

Azure

GCP

Akamai

Cloudflare

Job description

About the Role:

Grade Level (for internal use):

10

About the Role: Senior Network Engineer

The Team: Global Network Services is seeking a Senior Network Engineer to join our dynamic, multi-disciplinary team. You will design, automate, and operate the DNS, edge delivery, and application delivery services that keep S&P Global’s platforms fast, secure, and available. We value continuous learning, excellence, and a proactive mindset.

Responsibilities and Impact

DDI, Edge Security, and Application Delivery

• 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), 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.

Automation and Infrastructure as Code

• 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 ,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.

Collaboration and Continuous Improvement

• 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 We’re Looking For

Basic Required Qualifications

• 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.

Additional Preferred Qualifications

• Experience querying observability and logging platforms (e.g., Splunk, Grafana , Google Secops etc) 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 asInfoblox DDI Professional, Terraform Associate, Akamai or Cloudflare certifications, or AWS, Azure, or GCP networking certifications.

Grade: 10 {5 to 10 yrs}

Shift Time: 2 pm to 11 pm IST

Job Location: Hyderabad / Gurugram / Noida / Bengaluru

Working Model: Hybrid, twice a week work from office.

What’s In It For You?

Our Mission:

Advancing Essential Intelligence.

Our People:

We’re more than 35,000 strong worldwide- so we’re able to understand nuances while having a broad perspective. Our team is driven by curiosity and a shared belief that Essential Intelligence can help build a more prosperous future for us all.From finding new ways to measure sustainability to analyzing energy transition across the supply chain to building workflow solutions that make it easy to tap into insight and apply it. We are changing the way people see things and empowering them to make an impact on the world we live in. We’re committed to a more equitable future and to helping our customers find new, sustainable ways of doing business. Join us and help create the critical insights that truly make a difference.

Our Values:

Integrity, Discovery, Partnership

Throughout our history, the world's leading organizations have relied on us for the Essential Intelligence they need to make confident decisions about the road ahead. We start with a foundation of integrity in all we do, bring a spirit of discovery to our work, and collaborate in close partnership with each other and our customers to achieve shared goals.

Benefits:

We