F5 Lead/Architect

Techwizens LLC; Greenwood Village (CO); Hybrid; USD 90,000 - 130,000; Full time

Job summary

Techwizens LLC is seeking a Server Load Balancer Engineer to design and implement load balancing solutions that ensure high availability and performance of critical applications. This mid-senior level contract position requires hands-on experience in LAN/WAN operations, network security, and expertise in F5 and A10 technologies.

Qualifications

• Mid-Senior level experience in Server Load Balancing.
• Deep understanding of networking protocols and technologies.

Responsibilities

• Design and implement load balancing solutions for critical applications.
• Provide tier 3 troubleshooting and support for network issues.
• Conduct meetings with clients to gather application requirements.

Skills

LAN/WAN operations

TCP/IP

OSI model

DNS

HTTP

SSL/TLS handshake

packet analysis

network security

VPN

DDoS protection

firewalls

routing protocols

communication skills

ITIL knowledge

Job description

As a Server Load Balancer Engineer, you will be responsible for designing, implementing, and supporting load balancing solutions that ensure high availability and performance of critical applications. You will work closely with customers to gather requirements, create technical designs, and provide expert-level troubleshooting and support.

Location: Greenwood Village, CO (3 days in, 2 days remote). Only local candidates on C2C.

Reason for opening: Backfill position. The current person is more of a technical manager rather than an engineer in the weeds.

Focus: Load Balancing Design/Architecture + Implementation. Designing global SLB solutions, implementing them for customers, and doing F5 to A10 migrations. This is an expert-level role in Server Load Balancing.

Key Responsibilities:

• Conduct meetings with customers to gather application requirements.
• Design solutions aligned with best practices and standards.
• Prepare and follow peer review processes for approvals.
• Create MOPs/SOPs for implementation following change management.
• Implement and verify solutions with customer acceptance.
• Provide tier 3 troubleshooting and support.

Required Skills:

• Hands-on experience with LAN/WAN operations, network protocols, UNIX/Linux (Redhat), VMware or similar hypervisors.
• Deep understanding of TCP/IP, OSI model, DNS, HTTP, SSL/TLS handshake, and packet analysis using Wireshark.
• Experience in network security including VPN, DDoS, malware protection, and firewalls.
• Familiarity with routing protocols such as OSPF, BGP, MPLS, and traffic engineering.
• Excellent communication skills for explaining technical concepts.
• Knowledge of ITIL and change management processes.

F5 Load Balancer Expertise:

• Expert skills with LTM, GTM (Big IP DNS), AFM, TMOS CLI, iRules, VLAN, self-IP, floating IP configuration.

A10 Networks Expertise:

• Expert skills with ADC platform (virtual servers, nodes, pools), ACOS CLI, AFLEX rules, health monitors, SSL templates, VLAN, VRRP configuration.

Seniority level

• Mid-Senior level

Employment type

• Contract

Job function

• Information Technology

Industries

• IT Services and IT Consulting

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