Network Security Engineer – Firewall Rule Optimization (AlgoSec) | £400 - £450 per day (Inside IR35) | 6-month initial contract | Start: ASAP | On site, 3 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
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Network Security Engineer in Manchester employer: Oscar
Join a dynamic and innovative software and Business Intelligence organisation in Hertford, where you'll thrive in a hybrid work environment that promotes flexibility and collaboration. As a Data Consultant, you'll enjoy a varied role with opportunities for professional growth, including managing projects from inception to deployment and engaging with a European customer base. The company fosters a supportive culture that values continuous learning and offers exposure to exciting industry events, making it an excellent employer for those seeking meaningful and rewarding work.
