F5 Network Engineer

ICONMA LLC

Newington, CT, United States

1 day ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience required

0 years minimum

Compensation

$100,000.0 - $160,000.0

Working hours

Regular working hours

Job source

www.careerjet.com

Tech stack

Java (Programming Language) .NET Framework Application Programming Interfaces (APIs) Amazon Web Services Data Analysis Application Firewall Microsoft Azure Border Gateway Protocol Cloud Computing Cloud Engineering Continuous Integration Data Centers

+40 more

DDoS Mitigation Network Address Translation Disaster Recovery Domain Name System (DNS) Monitoring of Systems Python (Programming Language) Routing Packet Analyzer Node.Js Open Shortest Path First (OSPF) Open Web Application Security Performance Tuning Public Key Infrastructure Ansible BIG-IP Global Traffic Manager (GTM) Zero Trust Network Access Software Engineering Data Streaming Tcl (Programming Language) TCP/IP Transmission Control Protocol (TCP) Tcpdump Traffic Analysis Wireshark Virtual Local Area Networks SSL Certificate Management Transport Layer Security Enterprise Software Applications Load Balancing Grafana BIG-IP Local Traffic Manager (LTM) Gitlab-ci Infrastructure Automation Frameworks Deployment Automation Restful APIs Terraform Ddos Splunk Big Ip Jenkins

Job description

Design, configure, and manage F5 BIG-IP Local Traffic Manager (LTM) virtual servers, pools, nodes, and monitors for enterprise applications across multiple environments (Development, QA, Staging, Production).
Develop and maintain iRules, iApps, and Local Traffic Policies to enable advanced traffic steering, header manipulation, URI-based routing, SSL offloading, and content switching.
Implement and manage F5 BIG-IP Global Traffic Manager (GTM / DNS) for geographic load balancing, disaster recovery failover, and multi-data-center traffic distribution.
Configure and troubleshoot SSL/TLS termination, certificate management, and end-to-end encryption across the F5 platform, including integration with enterprise PKI and certificate authorities.
Build and maintain health monitors (HTTP, HTTPS, TCP, UDP, custom scripted) to ensure proactive detection of application and service degradation.
Support application development teams by integrating load balancing configurations into CI/CD pipelines and Infrastructure-as-Code (IaC) workflows using Ansible, Terraform, or F5 AS3/DO declarative APIs.
Perform capacity planning, traffic analysis, and performance tuning of F5 appliances and virtual editions (VE) to meet SLA and throughput requirements.
Troubleshoot complex application delivery issues spanning L4-L7 layers, including packet captures, SSL handshake failures, persistence problems, and asymmetric routing.
Manage F5 Advanced WAF (Web Application Firewall) policies to protect applications against OWASP Top 10 vulnerabilities, bot traffic, and DDoS attacks.
Collaborate with network, security, and application teams to architect resilient, scalable load balancing solutions aligned with enterprise standards.
Maintain documentation including topology diagrams, runbooks, change records, and standard operating procedures for all F5 and load balancing configurations.
Participate in on-call rotations and provide L3 support for production incidents involving application delivery and traffic management., LOCATION: NEWINGTON, CT. This is an in person role, not remote, not hybrid WORK SCHEDULE: Monday - Friday; 8:30 am - 5:00 pm Network Engineer is an onsite position responsible …
29 days ago

Requirements

Required skills:
F5 Technologies: F5 BIG-IP LTM, GTM, ASM/Advanced WAF, APM - configuration, administration, and troubleshooting.
Scripting & Automation: iRules (TCL-based), iApps, F5 AS3, DO (Declarative Onboarding), TS (Telemetry Streaming), and REST API integration.
Application Development: Server-side and application-tier development (Java, Python, Node.js, or .NET) with understanding of how applications interact with load balancers and reverse proxies.
Networking: TCP/IP, HTTP/HTTPS, DNS, SSL/TLS, VLAN, SNAT, routing protocols (BGP, OSPF), and packet-level troubleshooting (tcpdump, Wireshark).
Cloud Platforms: Experience with F5 VE deployments on AWS (ELB/ALB/NLB integration), Azure (Application Gateway), or GCP; understanding of cloud-native load balancing services.
CI/CD & IaC: Ansible playbooks for F5, Terraform F5 provider, Jenkins/GitLab CI integration for automated deployments.
Monitoring & Observability: Splunk, ELK, Grafana, or F5 Analytics/AVR for traffic visibility, dashboarding, and alerting.
Security: WAF policy tuning, DDoS mitigation, bot management, zero-trust principles, and security hardening of application delivery infrastructure.
Years of Experience: 14.00 Years of Experience