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Added 47 mins ago
Data Center Technician II
Google
Council Bluffs, IA
…equipment or in a similar role (e.g., Systems Administration, Network Deployment Engineer, Help Desk Technician,…
Added 55 mins ago
Senior Software Development Engineer in Test, ML
PlayStation Global
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…dynamic technology company, delivering cutting-edge hardware and network services to more than 100 million people and an entertainment leader, home to some of the most beloved and…
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AI Solutions Engineer
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…and Baker Tilly US, LLP (Baker Tilly) provide professional services through an alternative practice structure in accordance with the AICPA Code of Professional Conduct and applicable laws,…
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Lead DevOps Engineer
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Added 1 hour ago
ND
Managing Director, AI GTM (Banking and Financial Services) - REMOTE
NTT DATA Americas, Inc.
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We are currently seeking a Managing Director, AI GTM (Banking and Financial Services) - REMOTE to join our team in Plano, Texas (US-TX), United States (US).
Added 1 hour ago
Lead Information Systems Security Officer (ISSO) - Post-Quantum Cryptography
Lumen
Dover, DE
Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure,…
Added 1 hour ago
Lead Information Security Engineer - Red Team
Lumen
Dover, DE
The Lead Information Security Engineer within Product and Platform Security provides technical leadership and hands-on execution across Red Team functions. This role leverages advanced…
Added 1 hour ago
FM
Sr. Principal Integration Engineer - Cloud Solutions
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Waltham, MA
- $137,000 to $229,000 USD / year
Design and engineer secure connectivity between Azure, on-premises infrastructure, and external services, incorporating private connectivity and network isolation.
Added 1 hour ago
FM
Cybersecurity Architect
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- $137,000 to $229,000 USD / year
Evaluate existing network and security infrastructure, identify vulnerabilities, and recommend enhancements to align with Zero Trust principles.
Added 1 hour ago
Cloud Systems Engineer (Secret) (4496)
SMX
Boston, MA
…the design and implementation of secure, scalable multi-cloud infrastructure, applications, and services in support of enterprise cloud migration and mission-critical systems for the United…
Added 2 hours ago
J
Senior IT Project Engineer
Jobgether
Remote, United States
- $105,000 to $115,000 USD / year
Take a leading technical role in delivering reliable, secure, and high-performing IT infrastructure for professional services organizations. As a Senior IT Project Engineer, you will…
Added 2 hours ago
TRANSPORTATION ENGINEERING SPECIALIST - 11032026-82298
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Principal Core Infrastructure Engineer (Nashville, TN, relo provided)
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
…applying load‑shedding, throttling, and rate‑limiting to handle network unreliability while meeting SLOs. Establishes KPIs and telemetry; builds proactive dashboards and alerts; and designs…
Added 3 hours ago
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Principal Core Infrastructure Engineer (Nashville, TN, relo assistance available)
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
…applying load‑shedding, throttling, and rate‑limiting to handle network unreliability while meeting SLOs. Establishes KPIs and telemetry; builds proactive dashboards and alerts; and designs…
Added 3 hours ago
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Principal Network Engineer
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Seattle, WA
- $114,600 to $234,600 USD / year
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Implementation Engineer 4 (Perimeter)
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Remote, United States
We are seeking an experienced Perimeter Implementation Engineer to join a Network Delivery and Execution team focused on enterprise cybersecurity infrastructure. In this hands-on technical…
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AWS Cloud Security Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an AWS Cloud Security Engineer based in the United States.
Added 3 hours ago
Mission Autonomy Software Developer
CORP-Corporate Office
United States
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Added 4 hours ago
Software Engineer III- AI & Engineering/Software as a Service
Deloitte US
Atlanta, GA · Austin, TX · Baltimore, MD · Birmingham, AL · Boise, ID · Boston, MA · Charlotte, NC · Chicago, IL · Cincinnati, OH · Cleveland, OH · Colorado Springs, CO · Columbus, OH · Costa Mesa, CA · Dallas, TX · Denver, CO · Des Moines, IA · Detroit, MI · Fort Worth, TX · Fresno, CA · Grand Rapids, MI · Hartford, CT · Hermitage, TN · Houston, TX · Huntsville, AL · Indianapolis, IN · Jacksonville, FL · Jersey City, NJ · Kansas City, MO · Lansing, MI · Las Vegas, NV · Los Angeles, CA · Louisville, KY · McLean, VA · Miami, FL · Milwaukee, WI · Morristown, NJ · Nashville, TN · NY · Philadelphia, PA · Pittsburgh, PA · Portland, OR · Princeton, NJ · Raleigh, NC · Richmond, VA · Rochester, NY · Rosslyn, VA · Seattle, WA · Stamford, CT · Tampa, FL · Tulsa, OK · Wichita, KS
…integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. These solutions are powered by engineering for business advantage, transforming…
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Network Engineer
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Tallahassee, FL
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The Network Engineer will provide critical operational support for the organization's enterprise network infrastructure during a temporary leave coverage period. This individual will step…
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Software Engineer Intern
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Germantown, MD
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The Government Services and Solutions team is a Viasat business focused on delivering high quality End to End communications solutions to Government customers who operate across all…
Added 4 hours ago
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Sr. IT SAP Systems Engineer
TreeHouse Foods Services, LLC
United States
- $100,800 to $151,200 USD / year
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Added 4 hours ago
ND
Managing Director, AI GTM (Banking and Financial Services) - REMOTE
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Plano, TX
- $150,000 to $350,000 USD / year
We are currently seeking a Managing Director, AI GTM (Banking and Financial Services) - REMOTE to join our team in Plano, Texas (US-TX), United States (US).
Added 5 hours ago
TS/SCI Platform Engineer
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An employer in the Dayton, Ohio, area is seeking a TS/SCI Platform Engineer for a direct-hire opportunity. This individual will be responsible for designing, implementing, and maintaining…
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Lead Solution Architect with AI Experience
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Cleveland, OH · Cincinnati, OH · Columbus, OH
…integrated/verticalized sector solutions in software, data, AI, network, and hybrid cloud infrastructure. These solutions are powered by engineering for business advantage, transforming…

Solutions³ LLC

Senior Detection Engineer

Arlington, VA, United States

$131,000 to $150,000 USD / year

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Job details

Pay: $131,000 to $150,000 USD / year
Apply by: Jan 31, 2027
Experience: 10+ years of directly relevant experience
Posting language: English
Posted: Nov 2, 2026

Original job description

Title: Subject Matter Expert I

Description:

Solutions³ LLC is supporting a U.S. Government customer to support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution. Contract personnel perform investigations to characterize the severity of breaches, develop mitigation plans, and assist with the restoration of services.

Solutions³ LLC is seeking an experienced and technically proficient Senior Detection Engineer who develops, validates, deploys, and tunes detection logic supporting proactive threat hunting across federal and critical infrastructure environments. This role combines advanced threat hunting tradecraft, adversary behavior analysis, and detection engineering to identify sophisticated threats, close visibility gaps, and improve detection effectiveness.

The engineer translates threat intelligence, hunt findings, and incident response lessons into reliable behavioral analytics, investigative queries, and automation. This work moves the team beyond individual hunts toward faster, repeatable, and scalable operations. Working across endpoint, network, identity, and cloud telemetry, the engineer selects detection methods based on available evidence and mission requirements. The position serves as the technical bridge between threat hunters, technical delivery teams, system engineers, analytics developers, and data scientists, turning operational findings into validated detections, automation, sensing improvements, and actionable capability requirements.

Salary Range: $131,000 - $150,000 Location: Arlington, VA Job Type: Onsite

Eligibility:

Must be a US Citizen
Must have an active TS/SCI clearance
Must be able to obtain DHS Suitability prior to starting employment
10+ years of directly relevant experience

Responsibilities Include:

Develop and test hypotheses to uncover persistence, privilege escalation, credential access, lateral movement, command and control, and defense evasion. Correlate evidence across data sources and document defensible conclusions.
Build behavioral analytics, correlation rules, signatures, and queries using endpoint, network, identity, cloud, and application telemetry. Target adversary techniques and activity sequences rather than individual indicators of compromise.
Convert validated hunt methods, incident findings, and exercise results into reusable detections. Document each detection’s purpose, data requirements, investigative guidance, assumptions, and known limitations. Translate remaining gaps into technical requirements and acceptance criteria, recommend priorities through Threat Hunting governance, and verify that delivered capabilities meet the operational need.
Test detections against representative malicious and benign activity using historical telemetry, controlled simulations, and purple team exercises. Verify intended behavior, evaluate evasion opportunities, and retain test evidence.
Analyze false positives, false negatives, alert volume, thresholds, exclusions, and environmental baselines. Improve detection fidelity and alert context through enrichment and prioritization, while assessing the risk of suppressing legitimate threat activity.
Assess the availability, reliability, and quality of sensors, tools, and data sources. Identify collection, parsing, normalization, and retention gaps and explain their impact on active hunts and production detections. Coordinate remediation with infrastructure teams and validate restored coverage.
Develop and maintain automation for enrichment, query execution, analytical workflows, and detection validation, including SOAR playbooks where applicable. Tune data pipelines and queries for speed and responsiveness. Build in review, error handling, and recovery procedures.
Maintain version-controlled content, peer reviews, release criteria, approval records, and rollback procedures. Revalidate analytics after platform, schema, environmental, or adversary tradecraft changes.
Coordinate with hunters, incident responders, intelligence analysts, and platform engineers to integrate detections into investigative and automated workflows.
Measure validated detection coverage, fidelity, actionable findings, and remaining gaps. Communicate the operational significance of technical findings and avoid equating rule counts with effective coverage.
Partner with analytics developers and data scientists to develop and validate advanced analytics, including machine learning where appropriate. Assess operational value, false positives, data dependencies, and analytical limitations.
Provide technical leadership supporting the section focal point for vulnerability management (VM) and threat hunting (TH) activities under applicable authorities. Develop exercises cenarios and expected detection outcomes, assess sensing failures, and track corrective actions.
Evaluate new tools, data sources, and analytical methods against identified mission gaps. Document test results, operational limitations, and adoption recommendations.
Review analytical work, mentor analysts, and set standards for query development, documentation, testing, deployment, and tuning. Develop and maintain detection engineering competencies, Job Qualification Requirements (JQRs), training scenarios, and practical assessments in coordination with section leadership.

Required Skills:

Demonstrated senior-level experience in threat hunting, detection engineering, incident response, or closely related defensive cyber operations, including independent ownership of production detection content.
Strong command of hypothesis development, adversary behavior analysis, iterative investigation, and evidence-based conclusions.
Proven ability to develop, test, deploy, and tune production detections, explain their limitations, and assess the effects of exclusions and suppression.
Advanced proficiency in one or more security query languages (KQL, SPL, EQL, ES|QL, or vendor-specific EDR languages), with the ability to adapt and optimize logic across platforms.
Experience analyzing process execution, command lines, process ancestry, authentication, persistence mechanisms, network connections, and related enterprise telemetry.
Understanding of Windows and Linux internals, enterprise networking, identity systems, cloud telemetry, and sophisticated adversary tradecraft.
Practical experience mapping detections to MITRE ATT&CK and explaining the telemetry, test evidence, and limitations behind coverage claims.
Proficiency in Python and PowerShell, or comparable languages, for analysis, enrichment, testing, and automation.
Ability to clearly document detection intent, logic, validation results, investigation steps, and tuning decisions.
Experience translating operational findings into engineering requirements and acceptance criteria, validating sensing effectiveness, and coordinating improvements across hunt analysts and delivery teams.

Desired Skills:

Experience with CrowdStrike Falcon, Microsoft Defender, Cortex XDR, SentinelOne, Elastic, Splunk, or comparable platforms.
Experience with portable detection content such as Sigma
Experience with detection-as-code and automated testing
SIEM data onboarding and pipeline tuning experience
Experience with adversary emulation and cyber exercise development
Federal civilian or critical infrastructure cyber operations experience
Experience with maintaining detection engineering competencies, Job Qualification Requirements, training scenarios, and practical assessments

Desired Certifications:

GIAC Certified Detection Analyst (GCDA)
GIAC Certified Forensic Analyst (GCFA)
GIAC Defending Advanced Threats (GDAT)
GIAC Certified Intrusion Analyst (GCIA)
GIAC Certified Incident Handler (GCIH)
GIAC Cyber Threat Intelligence (GCTI)
Microsoft Certified: Security Operations Analyst Associate (SC-200)
Certified Information Systems Security Professional (CISSP)

Required Education: Bachelor’s degree in Engineering, Computer Science, Cybersecurity, Information Systems, or related field (Master's Degree preferred)

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More about this job

Skills

Incident response
Prioritization
Machine learning
Leadership
Work analytically
Documentation
Query languages
Microsoft Windows
Linux
MITRE ATT&CK
Python
Microsoft PowerShell
Splunk
Test automation
Onboarding
CISSP
Computer science
Cybersecurity

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