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Senior DevOps Engineer
Expression
Remote, United States
Expression is seeking an experienced Senior DevOps Engineer to support the National Telecommunications and Information Administration (NTIA) Federal Spectrum Data Systems (FSDS) program…
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DevOps Engineer
Expression
Remote, United States
Expression is seeking a mid-level DevOps Engineer to support the National Telecommunications and Information Administration (NTIA) Federal Spectrum Data Systems (FSDS) program within the…
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Cloud Platform Administrator (Mid-Level, Senior or Lead) **Sign on Bonus Potential**
The Boeing Company
Berkeley, MO · Seattle, WA · Daytona Beach, FL
The Infrastructure team is seeking a skilled platform engineer to help build and operate the cloud platform services that host critical enterprise applications and software toolchains. In…
Added 1 min ago
Sr. Integration and Test Engineer IV
Archarithms Inc
Huntsville, AL
Job Title: Senior Integrator and Test Engineer IV
Added 2 mins ago
NWS Lead Software Engineer
General Dynamics Mission Systems, Inc
Pittsfield, MA
CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance obtainable within reasonable time based on requirements. Applicants selected will be subject to a U.S. Government…
Added 2 mins ago
Senior Principal FPGA Engineer
RTX
United States
The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Added 2 mins ago
Principal Platform Software Engineer (Onsite)
RTX
United States
Raytheon has an opportunity for a Principal Platform Software Engineer with well-rounded Infrastructure Platform Engineering expertise to join an agile product team. The Ideal candidate…
Added 2 mins ago
SW Integration and Test Engineer – Principal SW Engineer
RTX
United States
Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Added 6 mins ago
VT
Partnerships Manager
Valon Tech
New York, NY · San Francisco, CA
- $175,000 to $225,000 USD / year
…our founding Strategic Account Executive and founding Sales Engineer from first conversation through close and into deployment. You'll lead the relationship layer of high-stakes,…
Added 7 mins ago
Senior Network Engineer
LEIDOS, INC.
Laurel, MD
Leidos has an exciting opportunity for an experienced Network Engineer to join our Cyber & Analytics Business Area, Key Management & Analytics Division, supporting critical…
Added 7 mins ago
Principal Cloud Systems Engineer
LEIDOS, INC.
Odenton, MD
Leidos is seeking an experience Principal Cloud Systems Engineer to join our Defense Enclave Services (DES) team, who will support an extensive digital modernization program critical to…
Added 8 mins ago
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Terraform Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Terraform Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on availability,…
Added 9 mins ago
BV
Docker Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Docker Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on availability,…
Added 9 mins ago
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Site Reliability Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Site Reliability Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on availability,…
Added 9 mins ago
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Devops Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a DevOps Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on availability,…
Added 9 mins ago
Sr. Mechanical Design Engineer, Data Center Design Engineering
Amazon Data Services, Inc.
Austin, TX · Seattle, WA · Herndon, VA · Columbus, OH
You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with…
Added 9 mins ago
Sr. Mechanical Design Engineer, Data Center Design Engineering
Amazon Data Services, Inc.
Austin, TX · Seattle, WA · Herndon, VA · Columbus, OH
You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with…
Added 9 mins ago
Sr. Mechanical Design Engineer, Data Center Design Engineering
Amazon Data Services, Inc.
Austin, TX · Seattle, WA · Herndon, VA · Columbus, OH
You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with…
Added 9 mins ago
Software Development Engineer, Infrastructure Security
Amazon Data Services, Inc.
Minneapolis, MN
The Infrastructure Security organization is looking for a software engineer to join our dynamic, outcome-driven team. The successful candidate is an owner who can deliver through high…
Added 9 mins ago
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Kubernetes Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Kubernetes Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on availability,…
Added 9 mins ago
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Senior DevOps Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Senior DevOps Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on availability,…
Added 9 mins ago
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Cloud Infrastructure Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Cloud Infrastructure Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on…
Added 9 mins ago
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Infrastructure as Code Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Infrastructure as Code Engineer to build, secure, automate, and operate cloud or enterprise infrastructure and platforms. The work focuses on…
Added 9 mins ago
Information Systems Security Engineer
Booz Allen Hamilton_United States
Fort Meade, MD
…critical AI-enabled capabilities? As an Information Systems Security Engineer (ISSE), you will identify the security controls, assessment tools, and authorization strategies needed to…
Added 9 mins ago
Software Quality Engineer, Senior
Booz Allen Hamilton_United States
Annapolis Junction, MD
Software Quality Engineer, SeniorThe Opportunity:

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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