Senior Network Engineer

Overview

In this role you will help design, implement, and secure a multi-site network environment for Mastercard. You will collaborate across teams to plan upgrades, troubleshoot complex issues, and manage network projects in a 24/7 global setting. You’ll influence security posture, vendor engagements, and continuous service improvements to boost performance and reliability. This is a hands-on engineering role with a focus on scalable, compliant network architecture that supports Mastercard’s digital payments ecosystem. You will work to enable secure, efficient connectivity at scale.

Responsibilities

• Manage and implement a range of network projects
• Develop requirements for upgrading existing production and non-production network devices
• Plan and execute upgrades of production and corporate network devices
• Perform in-depth network troubleshooting and provide technical assistance
• Plan, resource, and implement changes for projects (including out-of-hours)
• Identify risks, escalate concerns, and prevent missed requirements
• Cross-team collaboration and engagement to gather information
• Engage with change management and operations
• Support vendor management
• Identify service improvements to optimize performance, efficiency and capacity
• Baseline checks on new hardware for security and standards
• Mentor peers and share knowledge

Key requirements

• 3–5 years of IT experience in Networking (LAN/WAN), Firewalls, Security and encryption technologies, Load Balancing
• Experience with TCP/IP
• Broad knowledge of Cisco’s product portfolio
• Knowledge of network diagnostics, BGP, SNMP, VPN, SSH, MPLS
• Work in a regulated environment with DSS/PCI compliance
• Current CCNP certification or equivalent experience
• Strong verbal and written communication
• Self-starter with good listening skills
• Mentor to junior staff and capable of limited supervision

• Strong communication (verbal and written)
• Self-starter with proactive mindset
• Mentorship and leadership
• Networking (LAN/WAN)
• Firewalls and security/encryption technologies
• Load balancing

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