Senior SIEM Engineer - Splunk Architect (Onsite DC)

Quantum Sky; Washington (District of Columbia); On-site; USD 140,000 - 210,000; Full time

Job summary

Quantum Sky is seeking a Senior SIEM Engineer to own the architecture, strategy, and long-term health of our Splunk deployment in Washington, DC. This role leads detection engineering, data onboarding standards, and platform scalability while mentoring junior engineers.

You will partner with security leadership, drive upgrades, and ensure compliance alignments (PCI-DSS, HIPAA, SOC 2, NIST) across the environment.

Qualifications

• Bachelor’s Degree required (experience can substitute).
• 8+ years in security operations/detection engineering with Splunk ownership.
• Advanced SPL proficiency and large-scale search optimization.
• Strong scripting (Python/PowerShell) and SOAR integration familiarity.

Responsibilities

• Design and own the Splunk architecture including indexer/search-head clustering and storage/retention strategy.
• Lead detection engineering strategy within Splunk ES and prioritize correlation searches.
• Establish standards for data onboarding, CIM normalization, and search performance.
• Drive platform upgrades, app/add-on management, and integrations with security tools.
• Mentor mid-level SIEM engineers and SOC analysts on SPL and best practices.
• Act as escalation point for complex investigations and incidents.

Skills

SPL

Threat modeling

Incident response

Python

PowerShell

Detection engineering

Scripting & automation

MITRE ATT&CK

Cloud security monitoring

Education

Bachelor’s Degree

Tools

Splunk

Splunk ES

Splunk SOAR

VMware ESXi

Job description

Quantum Sky is seeking a Senior SIEM Engineer to own the architecture, strategy, and long-term health of our Splunk deployment in Washington, DC. This role leads detection engineering, data onboarding standards, and platform scalability while mentoring junior engineers.

You will partner with security leadership, drive upgrades, and ensure compliance alignments (PCI-DSS, HIPAA, SOC 2, NIST) across the environment.