Senior Systems Engineer – Load Balancing

Jobtailor

Philadelphia (Philadelphia County)

Hybrid

USD 140,000 - 190,000

Full time

14 days+

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Job summary

Jobtailor is seeking a seasoned infrastructure engineer to design, implement, and support enterprise delivery and security solutions using F5 BIG-IP, ingress controllers, and container technologies. You will work across on-premises and hybrid cloud environments, ensuring high availability and security for critical applications in a Philadelphia-area hybrid role.

We require 8+ years in infrastructure engineering, 5+ years in enterprise delivery and cloud platforms, and 3+ years with

Qualifications

Eight or more years of progressive infrastructure engineering experience.
Five+ years supporting enterprise application delivery, load balancing, and cloud platforms.
Three+ years operating Kubernetes and/or OpenShift in production.
Equivalent experience considered in lieu of formal degrees.

Responsibilities

Design, implement, and support enterprise application delivery and security solutions.
Manage F5 rSeries, application ingress, cloud, Linux, and containerization for on-prem and hybrid clouds.
Ensure high availability, performance, scalability, and security for mission-critical apps.
Participate in on-call engineering escalation rotation; hybrid role with occasional on-site work in Philadelphia area.

Skills

F5 rSeries

BIG-IP technologies

LTM / ASM / iRules

Ingress solutions

Kubernetes

OpenShift

RHEL

Containerization

Docker

Cloud architectures

Automation & scripting

PowerShell

Python

SSL offload / TLS

Networking concepts

Education

Bachelor’s or Master’s degree in CS/IT/Engineering

Tools

NGINX

NGINX Ingress Controller

OpenShift Routes

Kubernetes Ingress

Reverse proxy tech

Traffic Engineering

Ansible

Docker

OCI containers

OpenShift

Job description

Design, implement, and support enterprise application delivery and security solutions
Managing 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
Participate in an engineering escalation on‑call rotation
Hybrid role, with occasional on‑site work in the Philadelphia area

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
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

Core Competencies

Demonstrates expert‑level proficiency in F5 Technologies, including BIG-IP and Local Traffic Manager, alongside extensive experience in cloud architectures and containerization technologies. Proven ability to ensure high availability and security for enterprise applications in hybrid cloud environments.

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