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Lead F5 Network Engineer; Load Balancing

Job in O'Fallon, St. Charles County, Missouri, 63366, USA
Listing for: Mastercard
Full Time position
Listed on 2026-03-08
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Lead F5 Network Engineer (Load Balancing)

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 F5 Network Engineer (Load Balancing)

Overview

The Global Load Balancing Engineering team (LBE) is looking for a Lead Platform Engineer to join their global team that are responsible to plan, build & run its Commercial and corporate Load Balancer estate.

In This Position, You Will
  • To design, implement, manage & maintain Mastercard’s Global Network which includes Datacenter, Customer, and Corporate Networks across a diverse range of platforms
  • Translate Network designs to implementation plans with associated change control(s)
  • Engagement with stakeholders including impacted end users & other technology areas to manage upcoming change
  • Act as an escalation point for Operations in the resolution of incidents
  • Support Architecture teams in the development of new technologies with high & low level designs
  • Comply with current standards & best practice
  • Support internal & external audit processes
  • Evaluate & support the adoption of new infrastructure & technologies to meet business requirements
  • Hybrid working with 3 days in the office
All About You
  • Network engineering, design, operations, and/or architecture expertise with exposure to F5, Citrix Net Scaler, LAN/WAN, firewalls, VOIP, QoS, Routing & Switching technologies while adhering to standard design methodologies and best practices
  • Mastery of TCP/IP protocol communications and application layer
  • Load Balancing experience: F5 LTM, GLSB, WAF, AFM, AVR
  • Deep Packet inspection & analysis using tools like Wireshark
  • Expert knowledge in PKI, DNS and certificates
  • Experience of deploying load balancers in Azure, AWS and GCP
  • Firewall experience:
    Palo Alto, Checkpoint
  • Routing & Switching:
    Cisco, Arista
  • Extensive knowledge of Network diagnostics, protocols, and disciplines, VxLAN, EIGRP, OSPF, BGP, SNMP, VPN, SSH, and MPLS technologies.
  • Knowledge of security and encryption technologies including IPSEC & GRE tunnels on routers and firewalls,
  • Working knowledge of scripting tools such as git, bash, Ansible, Jenkins, Terraform, Power Shell, Python.
Desirable Or Additional Capabilities
  • Strong verbal & written communications skills, and excellent customer support capabilities
  • Self-motivated demonstrating strong organizational and listening skills; and very detail oriented with the ability to carry out assigned tasks with minimal supervision
  • Ability to consistently act in a professional manner and communicate with all levels of the organization, both internally and externally
  • Methodical problem resolving skills and mastery of developing high level and detailed network designs; solid web applications and technologies a plus;
    Cisco certifications such as CCNP or CCDP
  • Design, engineer, and implementation of Software Defined Networking.
  • Bachelor’s degree in computer science, Math, Engineering or equivalent combination of education and experience

Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable and identify the type of accommodation or assistance you are requesting.

Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

Corporate Security Responsibility
  • Abide by Mastercard’s security policies and practices;
  • Ensure the confidentiality and integrity of the information being accessed;
  • Report any suspected…
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