Helen Knight

S

Engineering Manager at Carousell · Application security

Carousell
Sydney, Australia · AEST (UTC+10)
10+ years experience
INSEAD Singapore
English
Messaging unavailable

Overview

Currently at Carousell, where I lead application security with a team of 26. Brought on-call pages for product security down from 25 a week to 3.

Good reasons to reach out
  • Questions about application security
Please don't message about
  • Generic networking requests
  • Unpaid work or spec projects
  • SEO and link-building offers

Travels often; replies within 48 hours

Skills
OWASPcloud securitythreat modelingIAMAppSecSASTBurp Suite

Experience

  1. Engineering Manager
    Dec 2025 - Present
    Carousell · 10 mo · Full-time · Sydney, Australia
    • Shipped 12 launches on the product security team without a rollback.
    • Cut p99 latency on the product security services from 751ms to 166ms.
  2. Senior Security Engineer
    Aug 2023 - Dec 2025
    PwC · 2 yr 4 mo · Full-time · Sydney, Australia
    • Reduced cloud spend on product security by 45% in two quarters.
    • Led the migration of 17 services to AppSec.
  3. Senior Security Engineer
    Jun 2021 - Aug 2023
    Woolworths Group · 2 yr 2 mo · Contract · Sydney, Australia
    • Led the migration of 62 services to cloud security.
    • Reduced cloud spend on product security by 22% in two quarters.
  4. Senior Security Engineer
    Oct 2018 - Jun 2021
    Lazada · 2 yr 8 mo · Full-time · Sydney, Australia
    • Moved 93% of product security traffic off a legacy monolith without a customer-facing incident.
  5. Security Engineer
    Aug 2016 - Oct 2018
    KPMG · 2 yr 2 mo · Full-time · Sydney, Australia
    • Shipped a rewrite that took build times from 37 minutes to under 2.

Projects

Side project: a commute planner
2024

Built with Burp Suite and OWASP. 2613 people used it last year.

Write-up: application security in practice
2022

A long-form guide to application security for people starting out.

References

No references yet.

Education

  1. INSEAD Singapore
    MBA, Business Administration
    2017 - 2019
  2. Singapore Management University
    BBM, Electronics and Communication
    2010 - 2014

Details

Compensation expectations
What they are targeting for their next role.
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Direct contact details
Direct email and a scheduling link.
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