SIEM Migration & Implementation Lead

The AES Group; San Jose (CA); On-site; USD 150,000 - 230,000; Full time

Job summary

The AES Group in San Jose, CA is seeking an experienced SIEM Migration & Implementation Lead to drive the migration to a modern SaaS-based SIEM platform. You will own log onboarding, detection engineering, dashboards, and security analytics to empower the SOC.

The ideal candidate has 10+ years in SIEM-related roles, hands-on expertise with multiple SIEM platforms, and a proven track record of enterprise migrations.

Qualifications

• 10+ years in SIEM engineering or security operations.
• Experience leading enterprise SIEM migrations or greenfield deployments.
• Experience integrating diverse telemetry sources.
• Strong scripting with Python/PowerShell/APIs and threat-detection focus.

Responsibilities

• Lead SIEM implementation and migration activities.
• Design log collection, parsing, normalization, and correlation.
• Migrate log sources, detections, dashboards, reports, and integrations.
• Develop detection content, correlation rules, dashboards, and analytics.
• Write complex SIEM queries for investigations and threat hunting.
• Onboard endpoint, firewall, DNS, identity, cloud, and other logs.
• Support testing, cutover, go-live, and operational transition.

Skills

SIEM Engineering

Security Monitoring

Detection Engineering

SIEM Query Writing

Scripting (Python/PowerShell)

MITRE ATT&CK

Log Onboarding

Tools

Splunk

IBM QRadar

ArcSight

Job description

Position Title: SIEM Migration & Implementation Lead
Location: San Jose, CA

Let's create our future together at The AES Group!

About The AES Group:

The AES Group is a premier technology consulting company that has been bringing businesses and talent together for over 20 years to deliver the most innovative technology solutions that create the most positive impact on society. AES has helped over 40 business enterprises, including Fortune 500 companies, engage their customers, empower their employees, and transform their business operations with the power of cloud, data, AI, and other emerging technologies.

Role Summary:

Seeking a SIEM Migration & Implementation Lead to drive the implementation and migration to a modern SaaS-based SIEM platform, including log onboarding, detection engineering, operational readiness, and SOC transition.

Key Responsibilities:

• Lead SIEM implementation and migration activities.
• Design log collection, parsing, normalisation, and correlation architecture.
• Migrate log sources, detections, dashboards, reports, and integrations.
• Develop detection content, correlation rules, dashboards, and security analytics.
• Write complex SIEM queries for investigations, detections, reporting, and threat hunting.
• Onboard endpoint, firewall, DNS, identity, cloud, DLP, proxy, email, and application logs.
• Support testing, cutover, go-live, and operational transition activities.

Required Experience:

• 10+ years of SIEM Engineering, Security Monitoring, Detection Engineering, or Security Operations experience.
• Proven experience leading enterprise SIEM migrations or greenfield deployments.
• Strong hands-on experience with one or more SIEM platforms.
• Strong expertise in SIEM query writing, dashboard development, correlation rule creation, and detection engineering.
• Experience integrating and onboarding diverse enterprise security telemetry sources.
• Strong scripting and automation experience (Python, PowerShell, APIs).
• Strong understanding of MITRE ATT&CK and threat detection methodologies.

Success Criteria:

Successful migration of log sources, detections, dashboards, and reporting.