Sr. Systems Engineer - Load Balancing

About the role

FreedomPay’s infrastructure supports secure, high-volume payment processing across a global platform. We are seeking a highly experienced senior systems engineer to design, implement, and support enterprise application delivery and security solutions. This role will manage F5, application ingress, cloud, Linux, and containerization technologies across on-premise and hybrid cloud environments, ensuring high availability, performance, scalability, and security for mission-critical applications. This position participates in an engineering escalation on-call rotation and is a hybrid role, with occasional on-site work in the Philadelphia area (must be currently local to Philadelphia; relocation assistance is not available).

Responsibilities

• Serve as subject matter expert in application ingress and load balancing
• Design, implement, and support global load balancing topologies in data center and hybrid cloud environments
• Support transition from traditional application stacks to containerized workloads
• Support complex infrastructure, application, networking, and security configurations across multiple technology stacks
• Partner with networking, security, and operations teams to ensure reliable and secure application delivery
• Develop automation, documentation, standards, and operational procedures to improve system reliability and scalability
• Lead technical projects, platform upgrades, migrations, and modernization initiatives

Requirements

• Expert-level hands-on experience with F5 rSeries, virtual appliances, and BIG-IP technologies, including Local Traffic Manager (LTM), Application Security Manager (ASM) / Advanced WAF, SSL/TLS offload and certificate management, high availability and global traffic management concepts, iRules, and traffic engineering
• Expert experience implementing and supporting ingress solutions for applications hosted on physical servers, virtual servers, Kubernetes environments, and OpenShift environments
• Advanced understanding of physical networking, TCP/IP, DNS, PKI and Certificate Services
• Extensive experience with Red Hat Enterprise Linux (RHEL), container technologies, Docker and OCI-based containers, and container image management
• Strong experience with cloud technologies and architectures, including virtual machines, cloud networking, network security, cloud firewalls, and hybrid cloud environments
• Strong experience with NGINX, NGINX Ingress Controller, OpenShift Routes, Kubernetes Ingress, and reverse proxy technologies
• Strong hands-on experience with OpenShift, Kubernetes, container networking, storage integrations, platform operations, and lifecycle management
• Experience with infrastructure automation and scripting using tools such as PowerShell, Python, Ansible, and Bash

Qualifications

• Master’s or bachelor's degree in Computer Science, Information Technology, Management Information Systems, Engineering, or a related field; equivalent experience will be considered
• Eight or more years of progressive infrastructure engineering, systems engineering, or platform engineering experience
• Five or more years of experience supporting enterprise application delivery, load balancing, and cloud infrastructure platforms
• Three or more years of experience operating Kubernetes and/or OpenShift environments in production

Skills

• Strong problem-solving and analytical skills
• Ability to independently own projects and technical initiatives from design through implementation
• Ability to communicate complex technical concepts to technical and non-technical stakeholders
• Demonstrated ability to work effectively both independently and within a collaborative engineering team
• Strong documentation, organizational, and time-management skills
• Customer-focused mindset with a commitment to operational excellence

Preferred Certifications

• F5 Certified Technology Specialist (F5-CTS) or F5 Certified Solution Expert (F5-CSE)
• Red Hat OpenShift certification
• Red Hat Certified Engineer (RHCE)
• Certified Kubernetes Administrator (CKA)
• Azure, AWS, or Oracle Cloud certifications
• VMware Certified Professional (VCP)

Benefits

• Medical, prescription, dental, and vision coverage
• Life Insurance
• Retirement Plans with company match
• Commission sharing plan
• Flexible hybrid working environment
• Great parental and other leave programs