Senior Cyber Defense: Detection & Incident Response Lead

nscaleoperationsukltd; United States; Hybrid; USD 160,000 - 190,000; Full time

Benefits offered by this job

Bonus potential

Equity

Job summary

nscaleoperationsukltd seeks a senior security engineer to join the Cyber Defense team. The role blends detection engineering with hands-on incident response across enterprise, cloud, data centre, and operational technology environments, with a three-person regional rotation.

The engineer leads containment during major incidents, tunes AI-proposed detection logic, and builds automation to reduce manual work, while ensuring final judgement on what ships.

Qualifications

• Several years of experience in security operations, detection engineering, or incident response across hybrid enterprise environments.

Responsibilities

• Map current detection coverage against attacker tradecraft and identify blind spots, then turn those gaps into clear detection ideas.
• Review and tune the detection logic and rules that AI agents propose, validating shadow rules before promotion to live production.
• Command the response during serious incidents, making fast containment decisions and acting as the lead until resolution.
• Build automation that removes human time from the response path, retiring or retuning noisy detections as needed.
• Triage escalations using a two-class risk indicator / actionable model (SSVC), splitting each into immediate act and permanent solve.

Skills

Security operations

Detection engineering

Incident response

On-call rotation

Job description

nscaleoperationsukltd seeks a senior security engineer to join the Cyber Defense team. The role blends detection engineering with hands-on incident response across enterprise, cloud, data centre, and operational technology environments, with a three-person regional rotation.

The engineer leads containment during major incidents, tunes AI-proposed detection logic, and builds automation to reduce manual work, while ensuring final judgement on what ships.