Senior Cyber Defence Engineer

Newbridge; Singapore; On-site; SGD 180,000 - 280,000; Full time

Job summary

Newbridge in Singapore seeks a senior hands-on defender who lives in the trenches. Not a manager, not a coordinator - a technical owner who can hunt, investigate, detect, and build. If you enjoy taking a security capability from zero to mature and then keeping it sharp, this is for you.

You will be the technical authority for our detection and response stack. You decide what we need, you build it, you run it, you break it to make it better.

Qualifications

• 5 to 8 years minimum doing the actual work in IR, Threat Hunting, or Cyber Threat Intelligence.
• Hands-on experience with modern EDR (CrowdStrike preferred) enabling live response.
• Experience handling real incidents solo and driving end-to-end containment.
• Ability to write detections (KQL / SPL / Sigma) and tune noise vs signal.
• Understanding attacker techniques, cloud misuse, and zero-day risk mitigation.
• Scripting ability to automate responses and investigations.

Responsibilities

• Own the end-to-end detection and response lifecycle for security tools and processes.
• Lead technical responses to incidents, including dig-through telemetry and logs.
• Develop and tune detections to cover endpoints, identities, and cloud activity.
• Investigate threats in AWS/Azure/GCP environments and fix root causes.
• Automate repeatable responses and continuously harden controls.

Skills

IR/Threat Hunting

CrowdStrike

Detections: KQL/Sigma

Cloud Security

Python Scripting

Incident Response

Threat Intelligence

Tools

EDR tooling

Cloud logging tools

SIEM

PowerShell

Job description

The Opportunity:

We need a senior hands-on defender who lives in the trenches. Not a manager, not a coordinator - a technical owner who can hunt, investigate, detect, and build. If you enjoy taking a security capability from zero to mature and then keeping it sharp, this is for you.

You will be the technical authority for our detection and response stack. You decide what we need, you build it, you run it, you break it to make it better.

What You'll Own:

This is a full-lifecycle ownership role. You are responsible for the health, effectiveness, and evolution of the tools and processes that let us find and stop attackers - from selection and deployment to tuning, integration, and eventual decommissioning.

Your Focus Areas:

1. Make Intelligence Actionable

Turn outside noise into inside defence. You'll track adversaries, follow campaigns, and understand how they operate. Your job is to make sure what we learn about attackers actually shows up in our controls the same day.

2. Own Incidents End-to-End

When something happens, you lead the technical response. You'll dig through EDR telemetry, logs, network and cloud traces to figure out what happened, how they got in, what they touched, and how to kick them out for good. You'll document it properly so we learn from it.

3. Hunt Before The Alert Fires

You won't wait for a SIEM alert. You'll proactively look for attacker behaviors that our tools missed across endpoints, identities, and cloud. You'll write the detections yourself, test them like an attacker would, and close the gaps you find.

4. Secure & Defend The Cloud

You'll investigate threats natively in AWS / Azure / GCP. This means knowing where to look in CloudTrail, Entra ID, GCP audit logs, spotting risky permissions, identity abuse, and helping engineering fix it at the root.

5. Protect The Brand Outside The Perimeter

Takedown phishing, fake domains, impersonation, malicious infra. You'll reverse the kits and payloads and build the evidence packs needed to take it down.

6. Make Vulnerabilities Mean Something

We don't just patch CVEs. You'll connect external exploit chatter with our actual exposure, prioritize what is truly weaponized, help validate what matters, and drive closure on zero-days that pose real risk.

7. Leave The Environment Better Than You Found It

Every incident is a product feedback loop. You'll harden EDR/SIEM/cloud controls, automate repetitive response steps, and write the playbooks that make the whole team faster next time.

What You Bring:

• 5 to 8 years minimum doing the actual work in IR, Threat Hunting, or Cyber Threat Intelligence.
• Deep, hands-on experience with modern EDR - CrowdStrike preferred - you can query, investigate, and do live response in your sleep.
• You have handled real incidents solo, not just as part of a queue.
• You can write good detections - KQL / SPL / Sigma or similar - and you know how to tune out noise without losing signal.
• You understand how attackers really operate - how they persist, move, elevate, steal creds, and hide C2.
• You've chased threats in the cloud, not just on-prem.
• You can script your way out of problems - Python, PowerShell, or Bash.