Senior Security Engineer

Senior Security Engineer – Threat Detection & Response

Sigma Computing

Location:
United States , New York City

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

210000.00 - 240000.00 USD / Year

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Job Description:

Sigma is seeking a Senior Security Engineer- Detection & Response (Threat-Informed Defense) to join our Security Engineering team.You will act as the technical SME for threat Intelligence, detection and response, partnering across Security, Platform, Product, and Engineering to reduce risk and improve resilience at scale. You will bridge the gap between Cyber Threat Intelligence (CTI) and actionable defense, shaping our security architecture to withstand modern adversary tactics before they manifest in our environment. In this role you will not just administer the platforms. You'll write production-grade code, engineer scalable detections, automate response, and develop proactive threat controls using deep knowledge of cloud, identity, application, and data attack paths.

Job Responsibility:

Adversary Response Planning: Develop and maintain a comprehensive adversary response strategy, mapping organizational risks to specific threat actor TTPs (Tactics, Techniques, and Procedures)
Cross-Functional Leadership: Act as a Subject Matter Expert to Infrastructure, Engineering, and security teams. Guide these partners in implementing proactive security controls, ensuring that security is 'baked in' to the development lifecycle and corporate infrastructure
Proactive Threat Modeling: Lead and build collaborative threat modeling sessions for new products and infrastructure, helping cloud platform, Engineering and IT identify and neutralize architectural weaknesses before deployment
Continuous Detection Engineering: Build, tune, and constantly update a library of high-fidelity detections. You will ensure our alerting logic evolves in lockstep with new exploitation techniques and industry benchmarks
Industry Alignment: Monitor the evolving security landscape (e.g., CISA advisories, new MITRE techniques) to ensure Sigma remains at the forefront of industry-standard security controls
Resilience Testing & Training: Design and lead cross-functional Incident Response simulations and tabletop exercises. Use these sessions to educate non-security teams on their roles during a crisis and to identify gaps in our defense-in-depth strategy
Advanced Incident Management: Lead the full lifecycle of high-severity security incidents, acting as the primary SME for containment and eradication while managing communication with executive leadership
Automation & Orchestration: Architect SOAR workflows to ensure common adversary techniques are met with immediate, automated remediation, reducing the manual burden on IT and Ops

Requirements:

Minimum 7+ years in security with at least 5+ years deeply focused on detection engineering, incident response, or threat hunting in cloud-native environments and a track record of working in fast paced SaaS environments,moving organizations from reactive IR to threat-informed defense
Bachelor’s or Master’s degree in Computer Science, Cyber Security, or a related field
Hands-on proficiency in securing AWS/GCP/Azure + modern Identity Stack, including experience with Kubernetes security and Terraform/IaC
Strong coding ability to build automations, security pipeline, detection as code etc
Deep understanding of cloud IAM attack paths, token/session abuse, API threats, and data exfiltration patterns, CI/CD for detections
Experience designing and operating telemetry pipelines (normalization, correlation, data quality, schema strategy)
Strong incident response leadership for high-severity events in production environments
Deep familiarity with threat intelligence frameworks (MITRE ATT&CK) and the ability to convert raw intel into actionable detection/prevention strategies
Proven experience running incident response tests, breach and attack simulations (BAS), or red/blue team exercises
Deep expertise in security tooling across SIEM, EDR, CNAPP, WAF, CASB, and Data Security platforms and judgment to know when to buy vs build
The ability to translate complex technical threats into clear, actionable guidance for both technical peers and executive leadership

Nice to have:

Relevant certifications (nice-to-have): GCIA, GCIH, GCTI, CISSP, CCSP
Contributions to open-source security projects or published research (nice-to have)

What we offer:

Equity
Generous health benefits
Flexible time off policy. Take the time off you need!
Paid bonding time for all new parents
Traditional and Roth 401k
Commuter and FSA benefits
Lunch Program
Dog friendly office

Additional Information:

Job Posted:
February 20, 2026

Employment Type:

Fulltime

Work Type:

On-site work

Sigma Computing - All Job Offers

Job Link Share:

Senior Security Engineer – Threat Detection & Response

Sigma Computing

Location:
United States , New York City

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
February 20, 2026

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