Lead F5 Network Engineer (Load Balancing)
MastercardO'Fallon, MissouriPosted 22 March 2026
Job Description
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 reponsible to plan, build & run its Commertial 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 The ideal candidate for this position should: • Network engineering, design, operations, and/or architecture expertise with exposure to the following areas: F5, Citrix NetScaler, 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, • Woking knowledge of scripting tools such as git, bash, Ansible, Jenkins, Terraform, PowerShell, 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_accommodation@mastercard.com and identify the type of accommodation or as ... (truncated, view full listing at source)
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