Web / Network Infrastructure Engineer - F5 / low-latency

Harvey Nash Group; London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading investment bank based in Canary Wharf is seeking a Web/Network Infrastructure Engineer to work on low latency solutions. The role includes collaborating with teams, designing automation tools using Python and Perl, and troubleshooting complex infrastructure issues. Essential skills include a strong foundation in Linux/Unix administration, networking protocols, and scripting. This position is hybrid with three days a week on site.

Qualifications

• Strong foundation in Linux/Unix system administration and networking protocols.
• Scripting and automation experience using Python and Perl.
• Proficient with Linux command-line tools.

Responsibilities

• Collaborate with architects and developers to deliver load-balancer environments.
• Design automation tools integrated with in-house systems.
• Troubleshoot complex infrastructure issues in high-pressure settings.

Skills

Linux/Unix system administration

Networking protocols (TCP/IP, HTTP, SSL)

Python scripting

Perl scripting

Automation tools experience

Troubleshooting skills

Analytical capabilities

Communication skills

Tools

Ansible

Terraform

F5 load-balancer platforms

A10 load-balancer platforms

Job description

Web/Network Infrastructure Engineer - F5, Low Latency sought by leading investment bank based in Canary Wharf.

**Inside IR35 - 3 days a week on site**

Role Overview

This position sits within the Enterprise Computing team, which is responsible for the delivery infrastructure that supports thousands of applications used by both internal and external clients. The role focuses on evaluating, deploying, and maintaining hardware, virtual, and software load-balancer solutions-critical for scalable and high-performance systems, particularly in trading environments and cloud platforms.

Key Responsibilities

• Collaborate with architects, developers, and operations to deliver well-documented and reliable load-balancer environments.
• Design automation tools integrated with in-house configuration management systems, primarily built using Python and Perl.
• Provide consultancy and support to internal technical teams, aligning infrastructure solutions with business goals.
• Troubleshoot complex infrastructure issues in high-pressure enterprise settings.
• Propose improvements for performance and stability at both code and configuration levels.

Essential Skills

• Strong foundation in Linux/Unix system administration and networking protocols such as TCP/IP, HTTP, and SSL.
• Scripting and automation experience using Python, Perl, and shell, alongside tools like Ansible or Terraform.
• Proficient with Linux command-line tools.
• Strong troubleshooting and analytical capabilities.
• Excellent communication skills for engaging with stakeholders and technical teams.

Desired Skills

• Experience with F5 or A10 load-balancer platforms, including their configuration and APIs (e.g., iControl, iRules, axAPI, aflex).
• Understanding of distributed web infrastructure and its components.
• Familiarity with virtualization and containerization technologies.
• Experience with source control, build tools, and software development lifecycle practices.
• Knowledge of automated testing infrastructures, particularly using Python or frameworks like Robot.

Please apply within for further details or call on 07393149627

Alex Reeder

Harvey Nash Finance & Banking