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Software and AI Engineer
CoreWeave
CA / Bellevue, WA · Livingston, NJ · Manhattan, NY · San Francisco, CA · Sunnyvale, CA
As a Software and AI Engineer, IT Systems, you’ll design and build AI agents, copilots, and first-party applications that make CoreWeave’s internal workflows more intelligent, automated,…
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NWS Lead Software Engineer
General Dynamics Mission Systems, Inc
Pittsfield, MA
As the NWS Lead Software Engineer for General Dynamics Mission Systems, you will provide technical leadership for a frontend or backend software team supporting a complex, distributed…
Added 1 min ago
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Part Time Systems Engineer Co-Op (Remote)
RTX
United States
- Part-time
Raytheon’s Air & Space Defense Systems (ASDS) strategic business unit (SBU) specializes in multi-domain integrated air and missile defense, advanced sensors, space-based systems,…
Added 1 min ago
Senior Principal Software Engineer
RTX
United States
…Department has an opportunity for a talented Sr Principal Software Engineer to join our team. This position will be onsite in Largo Florida and requires a current secret DoD…
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Internship – Raytheon Systems Security Engineer (Onsite)
RTX
United States
Systems Security Engineering creates holistic security solutions leveraging Cyber Security, Software Assurance and Supply Chain Risk Management to support Program Protection Implementation…
Added 1 min ago
Internship – Raytheon Systems Security Engineer- Onsite
RTX
United States
Systems Security Engineering creates holistic security solutions leveraging Cyber Security, Software Assurance and Supply Chain Risk Management to support Program Protection Implementation…
Added 1 min ago
Engineering Support to Operations, Engineer II, Project Engineer P2 (Onsite)
RTX
United States
Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join…
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Principal Platform Software Engineer (Onsite)
RTX
United States
The Principal Platform Software Engineer would be involved with development and implementation of traditional compute, network, storage systems and related deployments, as well as support…
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RF Test Systems Engineer 1 - Onsite McKinney TX
RTX
United States
We have an exciting opportunity for a full-time RF Test Systems Engineer 1 located onsite in McKinney, TX supporting Surveillance & Tactical Radar Solutions (STaRS) Test Automation.
Added 1 min ago
Physical Design Engineer
Baya Systems
Santa Clara, CA
Baya Systems is inspired by the baya bird, also known as the weaver. Baya birds weave very unique and intricate hanging nests from different materials. The nests are robust and safe while…
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Principal Engineer, Digital Workplace Technology Engineering
NBCUniversal
Remote, United States
- $180,000 to $210,000 USD / year
Lead the engineering of agentic AI solutions, automation workflows, and knowledge systems that enhance employee productivity and decision-making.
Added 1 min ago
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Staff Network Engineer (AI Infrastructure)
vCluster Labs
Remote, United States
- $170,000 to $210,000 USD / year
As a Staff Network Engineer at vCluster Labs, you aren't just configuring switches; you are building the automation logic that configures them. AI Clouds run on InfiniBand and high-speed…
Added 4 mins ago
Sr Software Engineer
Cengage Group
Newark, NJ
Partner with colleagues in Portfolio to modernize key editorial support systems
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Electrical Sustainment Engineer
Anduril Industries
Broomfield, CO · Fort Collins, CO
The Anduril Battlespace Awareness Radar team develops state-of-the-art radar systems, deployed to tackle the most significant security challenges of America and its allies. The Radar team…
Added 6 mins ago
Endpoint Systems Engineer
ECS FEDERAL LLC
Fairfax, VA
Everforth ECS is seeking an Endpoint Systems Engineer to support the internal Corporate IT team. The ideal candidate has experience managing endpoints at scale and is comfortable using…
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Sr. AI Transformation Engineer
Roku
San Jose, CA
Roku is seeking a Senior AI Transformation Engineer to join the AI Enablement Team and drive end-to-end delivery of agentic AI systems that measurably transform how work gets done across…
Added 7 mins ago
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Platform Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Platform Engineer to design, develop, test, and support enterprise software applications and services using the technology stack relevant to the…
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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,…
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Build and Release Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a Build and Release Engineer to design, develop, test, and support enterprise software applications and services using the technology stack relevant to…
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CI/CD Engineer
Bright Vision Technologies
Remote, United States
- $115,000 to $165,000 USD / year
Bright Vision Technologies is seeking a CI/CD Engineer to design, develop, test, and support enterprise software applications and services using the technology stack relevant to the…
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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,…
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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,…
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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,…
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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,…
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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,…

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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