Top 15 Senior cyber security engineer Jobs in New Castle, De

Senior Cyber Security Engineer
CSC (Corporation Service Company) —Wilmington, DE
- Full-time
- Hybrid work
- Computer science
- Computer Science
- 5 years
10930 Sr Associate IT Engineer
PSEG —Hancocks Bridge, NJ
- $67,200 - $106,400 a year
- Hybrid work
- Computer Science
- Engineering
- Pass drug screening
- Health insurance
- Dental insurance
4d
SVP, Head of Security Technology
Berkley —Wilmington, DE
- On call
- Computer Science
- 11+ years
- Office
Senior Director of Technology
CSC (Corporation Service Company) —Wilmington, DE
- Full-time
- Bilingual
- Bachelor's degree
- Organizational skills
Jr. Network Engineer (Onsite- Aberdeen, Maryland)
Fairwinds Technologies, L —Middletown, DE
- $90,000 - $105,000 a year
- Weekends as needed
- Hybrid work
- Computer science
- Computer Science
- Bachelor of Science
Quick Apply
Sr. Network Engineer (Hybrid- Aberdeen, Maryland)
Fairwinds Technologies, L —Middletown, DE
- $135,000 - $155,000 a year
- Weekends as needed
- Hybrid work
- Computer science
- Computer Science
- 5 years
Quick Apply
Sr Lead Security Engineer - Workforce
JPMorganChase —Wilmington, DE
- Full-time
- Azure
- Java
- AWS
- Health insurance
- Tuition reimbursement
Assistant Vice President, Cyber Security
Continental Finance Company —Wilmington, DE
- Online Application
- Hybrid work
- Computer science
- 6 years
- Computer Science
Quick Apply

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Senior Cyber Security Engineer

CSC (Corporation Service Company) -
Wilmington, DE

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Job Details

Full-time

Qualifications

Cloud identity and access management (IAM)
Data Integration (Data management)
Automation
Public Cloud
Security data analysis
Security threat response protocols
Log analysis tools
SOAR platforms
SIEM
Threat intelligence
MITRE ATT&CK
Query management
Incident response implementation
Security technology solutions implementations
Network event correlation
Identity & access management

Full Job Description

Senior Cyber Security Engineer

Wilmington, DE

Monday – Friday 8:00 – 5:00 ET

Hybrid/Remote

We are seeking a Senior Cyber Security Engineer to play a pivotal role in advancing our detection, response, and automation capabilities across a modern enterprise security stack. In this role, you will serve as a hands-on technical leader responsible for designing, engineering, and optimizing Cortex XSIAM to deliver high-fidelity detections, scalable automation, and rapid incident response. You will work with rich telemetry spanning endpoint, network, cloud, and identity data to turn adversary behavior into actionable analytics that measurably reduce risk.

This position is ideal for an experienced detection or security operations engineer who thrives at the intersection of platform engineering and threat expertise. You will collaborate closely with SOC analysts, incident responders, and fellow engineers, influence detection strategy, and mentor others while working on creative solutions that matter at enterprise scale. You’ll have the opportunity to shape how security operations evolves, driving improvements in signal quality, automation maturity, and mean time to respond, while continuously expanding your technical depth in XSIAM, XQL, and advanced security analytics.

Some of the things you’ll be doing:

Platform Engineering: Design, deploy, and maintain Cortex XSIAM detections, correlations, and analytics across endpoint, network, cloud, and identity data sources. Build and tune detection logic to reduce noise while improving true positive rates. Perform ongoing platform optimization, including ingest management, rule tuning, and performance improvements.
Detection Engineering & Threat Hunting: Develop and maintain custom detections using XQL (Cortex Query Language). Conduct proactive threat hunting and investigations using XSIAM analytics and telemetry. Translate threat intelligence and adversary techniques into actionable detections aligned to MITRE ATT&CK.
Automation & Response: Design and maintain automated response playbooks to accelerate incident containment and remediation. Integrate XSIAM with enterprise tooling (e.g., identity, EDR, ticketing, cloud, network security platforms). Support continuous improvement of MTTR through automation and orchestration.
Operations & Collaboration: Partner with SOC analysts, incident responders, and engineering teams on investigations and response activities. Support post-go-live enhancements, backlog grooming, and technical debt reduction initiatives. Provide technical guidance and mentorship to engineers and analysts.

What technical skills, experience and qualifications do you need?

Minimum 5+ years of experience in Security Operations, Detection Engineering, or SIEM/SOAR engineering
Hands-on experience with Palo Alto Networks Cortex XSIAM (or strong XDR/XSOAR experience with rapid XSIAM ramp-up)
Strong working knowledge of SIEM/XDR concepts and log analytics, incident response and threat detection workflows, and automation and orchestration use cases
Proficiency with XQL, KQL, SPL, or similar security query languages
Experience integrating data from endpoint, network, cloud, and identity platforms
Strong scripting experience (Python preferred)
Experience operating security platforms at enterprise scale
Preferred experience with endpoint security (Cortex XDR, Defender, CrowdStrike, etc.), cloud security telemetry (AWS, Azure, GCP), identity and access logs (AD, Azure AD, IAM)
Familiarity with MITRE ATT&CK and threat intelligence frameworks
Experience supporting a 24/7 SOC or global security operations team
Bachelor’s degree in computer science, information assurance, MIS or equivalent industry experience.
Palo Alto Networks Certified XSIAM Engineer or Analyst certification preferred.

#CSC #CSCCareers #LI-HL1

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senior cyber security engineer jobs in new castle, de

Senior Cyber Security Engineer

10930 Sr Associate IT Engineer

SVP, Head of Security Technology

Senior Director of Technology

Jr. Network Engineer (Onsite- Aberdeen, Maryland)

Sr. Network Engineer (Hybrid- Aberdeen, Maryland)

Sr Lead Security Engineer - Workforce

Assistant Vice President, Cyber Security

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