Senior Cyber Defence Engineer

newbridge alliance pte. ltd.; Singapore; On-site; SGD 150,000 - 190,000; Full time

Job summary

newbridge alliance pte. ltd. is seeking a senior hands-on defender who lives in the trenches.

This is not a manager role; it’s a technical owner who can hunt, investigate, detect, and build. If you enjoy taking a security capability from zero to mature and keeping it sharp, this is for you. You’ll own the detection and response stack end-to-end—selection, deployment, tuning, integration, and decommissioning.

Qualifications

• 5–8 years minimum doing IR, threat hunting or cyber threat intel.
• Hands-on experience with modern EDR, CrowdStrike preferred.
• Experience handling real incidents solo.
• Able to write detections with KQL/SPL/Sigma and tune noise without losing signal.
• Understanding attacker techniques: persistence, privilege, C2.
• Cloud threat hunting across AWS/Azure/GCP.
• Scripting in Python/PowerShell/Bash.

Responsibilities

• Own health, effectiveness, and evolution of detection and response tools and processes.
• Lead end-to-end incident response and document lessons learned.
• Develop proactive detections and test them like attackers would.
• Investigate threats in AWS/Azure/GCP and fix root causes.
• Harden EDR/SIEM/cloud controls and automate response playbooks.

Skills

IR/Threat Hunting

EDR CrowdStrike

Solo Incident Handling

Detections - KQL/SPL

Attack Techniques

Cloud Threat Hunting

Scripting (Python/PowerShell/Bash)

Tools

CrowdStrike EDR

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.