Lead Network Engineer, Site Reliability Engineering

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Lead Network Engineer, Site Reliability Engineering

Lead Network Engineer, Site Reliability Engineering
Our Purpose:
We work to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team – one that makes better decisions, drives innovation and delivers better business results.
About the Role:
Mastercard Site Reliability Engineering teams strive to ensure our customers have an experience that just works, every time by ensuring all aspects of our infrastructure and technology ecosystem are maintained to the highest standards and compliant with stringent security requirements. SRE within Mastercard's Availability Zone Operations is focused on ensuring core infrastructure, networks and supporting services, upon which our applications depend, operate with excellence and enable the applications deployed within to deliver a superb customer experience.
In this role, the selected candidate will join our Availability Zone Operations group with responsibilities to continuously assess and enhance service quality of a broad array of networking technologies in order to advise key stakeholders on most effective utilization of available resources, capacity forecasting and performance patterns.
Key Responsibilities:
• Lead continuous assessment processes of network infrastructure servicing critical Mastercard applications for health, performance, capacity and liase with product/development teams to forecast growth requirements.
• Perform key customer integration/connectivity assessments across both private and public networks to advise internal account teams on enhancement opportunities and provide guidance to customers on optimal strategies for reliable and performant access to Mastercard services.
• Conduct regular reviews of any incident events with Business Operations teams to ensure root causes are always identified and where patterns of failure, or compatibility issues between software and infrastructure are detected, formulate strategies to remediate or mitigate.
• Assess vendor upgrade hardware, firmware and supporting software roadmaps to advise on potential risks or opportunities for enhancement arising from upcoming releases.
• Drive observability as a core principle for infrastructure services, assessing environments and technologies to identify gaps in monitoring/alerting practices and propose strategies to close.
• Develop testing and validation plans for new environment builds, disaster recovery exercises and post-maintenance activities to certify environment readiness before customer traffic is routed to it.
All about you:
• 5-10 years of experience working in a Network Engineering operations or design role with at least 3 years direct experience supporting e-commerce, financial or large scale Software As A Service (SaaS) products.
• Expert knowledge of TCP/IP for both LAN and WAN implementation, private MPLS network implementation and SDWAN experience highly desirable.
• Advanced knowledge or formal certification in Cisco, Arista and/or Checkpoint network device operation.
• Intermediary to advanced knowledge of HTTP, DNS and Transport Layer Security protocols.
• Familiarity with Content Delivery Networks, DDOS protection services.
• Strong Linux Operating System fundamentals
• Experience with automation technologies such as Ansible/Terraform, Configuration As Code practices and structured data formats JSON/YAML.
• Experience with Application Performance Monitoring tools (Dynatrace/Datadog etc..) and familiarity with OpenTelemetry framework highly regarded.
• Excellent communications skills and experience co-ordinating complex troubleshooting efforts or product research with vendors.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
• Abide by Mastercard’s security policies and practices;
• Ensure the confidentiality and integrity of the information being accessed;
• Report any suspected information security violation or breach, and
• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.