Network Security Engineer

Oscar Technology; Lancashire; On-site; GBP 74,000 - 83,000; Full time

Job summary

Oscar Technology is seeking a Network Security Engineer to reduce risk from overly permissive firewall rules and routing that bypasses proxy controls. This hands-on remediation role is based in Manchester, on-site 4–5 days per week, with a GBP400–GBP450 daily rate (Inside IR35) for an initial 6-month contract, start ASAP.

You will join a small team across India, the UK and the US to align changes with the target security design and ensure proper hand-off across time zones.

Qualifications

• Firewall rule-engineering experience.
• Strong routing knowledge from Layer 4 to Layer 7.
• Experience working under change control in a regulated enterprise environment.

Responsibilities

• Review and tighten overly permissive firewall rules using AlgoSec analysis.
• Identify and remediate routing that bypasses proxy controls.
• Work with application and infrastructure owners to agree, implement and validate rule changes.
• Document changes and hand off cleanly across India, UK and US time zones.
• Align all work with the target-state security design.

Skills

Firewall engineering

Routing knowledge

Change control in regulated enterprise

Tools

AlgoSec

Blue Coat/Symantec/Skyhigh

Job description

Network Security Engineer – Firewall Rule Optimization (AlgoSec) GBP400 – GBP450 per day (Inside IR35) 6–month initial contract Start: ASAP On site, 4–5 days per week in Manchester

Our client is looking for a Network Security Engineer to reduce risk from overly permissive firewall rules and routing that bypasses proxy controls.

This is a hands–on remediation role within a three–person team, with one engineer each in India, the UK and the US. You'll work through years of accumulated rule changes as part of an AlgoSec–led cleanup, and align the outcome to the client's target–state security design. Interviews are commencing imminently.

What you’ll do

• Review and tighten overly permissive firewall rules using AlgoSec analysis
• Identify and remediate routing that bypasses proxy controls
• Work with application and infrastructure owners to agree, implement and validate rule changes
• Document changes and hand off cleanly across India, UK and US time zones
• Align all work with the target–state security design

What you’ll bring

• Firewall engineering and rule–base optimisation experience
• Strong routing knowledge and Layer 4 through Layer 7 understanding
• Experience working under change control in a regulated enterprise environment

Nice to have

• Hands–on AlgoSec or similar rule–analysis tools
• Proxy experience, such as Blue Coat/Symantec or Skyhigh
• Financial services background

Network Security Engineer – Firewall Rule Optimization (AlgoSec) GBP400 – GBP450 per day (Inside IR35) 6–month initial contract Start: ASAP On site, 4–5 days per week in Manchester