Network Security Engineer Firewall Rule Optimization - (No TP or Employer)

Calance · New York

FULL TIME

Job Description

Job Title: Network Security Engineer Firewall Rule Optimization - hybrid

Duration: 1 year

Location

Jersey City, NJ or New York, NY (Hybrid – 3 days/week onsite)

Network Security Engineer, Firewall Rule Optimization

Review and tighten overly permissive firewall rules using AlgoSec analysis

Find and fix routing that bypasses proxy controls

Work with application and infrastructure owners to validate changes under formal change control

Document work for clean daily handoffs to UK and India counterparts

Must have: firewall engineering and rule-base optimization experience; strong routing and Layer 4-7 knowledge; change control experience in a regulated enterprise

Preferred: AlgoSec or similar tools; proxy experience (Blue Coat/Symantec, Skyhigh); financial services background

Position Overview

Years of incremental change can leave an enterprise network with broad firewall rules and routing paths that bypass proxy controls. This role is focused on finding those exposures, tightening them, and doing so safely. You will use rule-analysis tooling to identify overly permissive rules, work with application and infrastructure owners to validate required access, and implement changes under formal change control. The US-based engineer will cover the Eastern time zone portion of the follow-the-sun cycle and partner closely with counterparts in the UK and India.

Key Responsibilities

Review and tighten overly permissive firewall rules using AlgoSec analysis, including rule usage, risk, and shadowed or redundant rule findings
Right-size rules by narrowing sources, destinations, services, and ports based on observed traffic and validated application requirements
Identify routing configurations that allow traffic to bypass proxy controls, and drive remediation with the network and infrastructure teams
Analyze traffic flows across Layer 4 through Layer 7 to confirm the business need for access before rules are modified or removed
Partner with application and infrastructure owners to review proposed changes, confirm impact, and validate results after implementation
Prepare and execute changes under formal change-control processes, including implementation plans, testing, and rollback procedures
Document rule changes, rationale, and validation results so work can be handed off cleanly between India, UK, and US team members each day
Participate in regular follow-the-sun handoffs and status updates, tracking progress and open items across regions
Align rule and routing remediation with the target-state security design, flagging conflicts or gaps to the architecture and security teams
Support audit and risk review requests by providing evidence of changes, approvals, and outcomes

Required Qualifications
Hands-on firewall engineering and rule-base optimization experience in an enterprise environment
Strong routing knowledge and solid understanding of Layer 4 through Layer 7 traffic behavior
Ability to analyze traffic flows and determine the least-privilege access an application actually needs
Experience working within formal change-control processes in a regulated enterprise
Clear written communication and the discipline to document work for handoff across time zones

Preferred Qualifications
Experience with AlgoSec or similar firewall rule-analysis and policy-management tools

· Proxy experience, such as Blue Coat/Symantec or Skyhigh

Financial services background - wwt/bny

Thank you,

Shiva Mittal

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Network Security Engineer Firewall Rule Optimization - (No TP or Employer)

Job Description

Location

· Proxy experience, such as Blue Coat/Symantec or Skyhigh