Jobs in the United States

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Added 18 mins ago
Senior Network Engineer - TS/SCI Clearance
CDW Government, LLC
Remote, United States
The Senior Network Engineer will support mission-critical network infrastructure within a secure federal environment. This role requires an active TS/SCI clearance and is focused on the…
Added 7 hours ago
Network Engineer
Valiant Solutions, LLC
Lorton, VA
Valiant Solutions is seeking a Network Engineer to join our rapidly growing and innovative team!
Added 7 hours ago
Cyber Data Analysis Engineer
Valiant Solutions, LLC
Springfield, VA
Required Clearance: Active TS/SCI with ability to pass and maintain a Government Polygraph (post-hire requirement).
Added 15 hours ago
Splunk SIEM Data Onboarding Engineer
BOOZ, ALLEN & HAMILTON, INC.
Reston, VA
The Splunk SIEM Data Onboarding Engineer is responsible for managing and enhancing our Splunk environment to ensure seamless data ingestion, analysis, and visualization. This role demands a…
Added 2 days ago
Senior Network Engineer (Active Top Secret Clearance with SCI Eligibility Required) - Sign-On Bonus Up to $10,000
Akima, LLC
Honolulu, HI
ASE is looking for a Senior Cisco Network Engineer to work in Honolulu, HI. The Senior Cisco Network Engineer is a pivotal role, providing operational knowledge and support to the…
Added 2 days ago
Senior Network Engineer (Active Top Secret Clearance with SCI Eligibility Required) - Sign-On Bonus Up to $10,000
Akima, LLC
Honolulu, HI
ASE is looking for a Senior Cisco Network Engineer to work in Honolulu, HI. The Senior Cisco Network Engineer is a pivotal role, providing operational knowledge and support to the…
Added 2 days ago
Network Engineer (Active Top Secret Clearance with SCI Eligibility Required) - Sign on bonus up to $5,000
Akima, LLC
Honolulu, HI
…Switches, Cisco ISE, Firepower, ACI, F5, Palo Alto, VMware NSX, SPLUNK, ACAS, and ServiceNow. The engineer assists in planning and executing network improvements and upgrades, providing…
Added 2 days ago
Cybersecurity Engineering Residency Program
Bluestaq US External
CO
Clearance Requirement: This position may require an active TS/SCI Clearance. Current clearance holders are strongly encouraged to apply. If you don't currently hold one, Bluestaq will…
Added 2 days ago
Product Security Engineer (Senior)
The Boeing Company
Seal Beach, CA · El Segundo, CA
An active U.S. TS/SCI Security Clearance is required pre-start.
Added 2 days ago
Splunk Software Engineer
CACI International
Fort Meade, MD
Minimum Clearance Required to Start: TS/SCI with Polygraph
Added 2 days ago
IL
Senior Windows Engineer
IQUASAR LLC
Fort Gordon, GA
- $120,000 to $150,000 USD / year
The Senior Windows Engineer builds, secures and maintains the Microsoft Windows and Windows Server environment behind the Army's Scalable GEOINT enterprise. The role covers STIG-compliant…
Added 2 days ago
Senior Detection Engineer
BCMC
Arlington, VA
…restoration of services. We are seeking a Senior Detection Engineer in support of this…
Added 2 days ago
Senior Systems Engineer
Omitron, Inc.
Colorado Springs, CO
Security Clearance: Active TS/SCI security clearance required.
Added 2 days ago
Defense Cyber Operations Engineer (On-Site Cocoa Beach, FL)
Deloitte
Lake Mary, FL
Active TS (SCI Eligibility) clearance required.
Added 2 days ago
AC
Cyber Detection Engineer Subject Matter Expert
Argo Cyber Systems
Arlington, VA
- $140,000 to $160,000 USD / year
Security Clearance: Active Top Secret / SCI (TS/SCI) Required
Added 2 days ago
Oracle Cloud Security Engineer
MANTECH
United States
Active/current TS/SCI with Polygraph is required for this position
Added 2 days ago
Oracle Cloud Security Engineer
MANTECH
United States
Clearance Requirements: Active/current TS/SCI with Polygraph is required for this position
Added 2 days ago
System Engineer
BOOZ, ALLEN & HAMILTON, INC.
Chantilly, VA
Booz Allen is seeking a skilled systems engineer with experience supporting enterprise desktop and server environments to join our team. In this role, you will draw upon experience…
Added 2 days ago
Staff Network Engineer
Applied Research Associates, Inc.
Raleigh, NC
Applied Research Associates (ARA), Inc. is seeking an experienced Network Engineer to design, operate, secure, and sustain classified and mission-supporting network infrastructure within…
Added 3 days ago
Information System Security Officer
Rincon Research Corp
Centennial, CO
Active TS/SCI security clearance with current SSBI
Added 3 days ago
Cyber System Security Engineer (CSSE)
KBR
El Segundo, CA
KBR is seeking a Cyber Security Engineer to join our team in El Segundo, CA. An active TS/SCI is required to be considered for this position.
Added 3 days ago
Cybersecurity Engineer, Senior Manager
Two Six Technologies
Arlington, VA
Active Top Secret clearance with SCI eligibility or access (TS/SCI)
Added 3 days ago
OP
System Engineer 3 BP-064
Onyx Point, Inc.
Hanover, MD
- $78,000 to $250,000 USD / year
TO BE CONSIDERED FOR THIS POSITION YOU MUST HAVE AN ACTIVE TS/SCI W/ FULL SCOPE POLYGRAPH SECURITY CLEARANCE (U.S. CITIZENSHIP REQUIRED)
Added 3 days ago
Associate Director, Cybersecurity Engineer
Two Six Technologies
Laurel, MD
Active Top Secret clearance with SCI eligibility or access (TS/SCI)
Added 3 days ago
BA
ICAM Engineer
Booz Allen Hamilton
Colorado Springs, CO
- $86,800 to $198,000 USD / year
Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance is required.

BCMC

Senior Detection Engineer

Arlington, VA, United States

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Job details

Apply by: Jan 28, 2027
Experience: 10+ years of directly relevant experience
Posting language: English
Posted: Oct 30, 2026

Original job description

BCMC is supporting a U.S. Government customer to provide 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. We are seeking a Senior Detection Engineer in support of this contract.

The Senior Detection Engineer develops, validates, deploys, and tunes detection logic supporting proactive threat hunting across federal and critical infrastructure environments. The 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.

Job Responsibilities

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:

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

Required Education:

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

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)

Our Company Overview Business Computers Management Consulting Group, LLC (BCMC) is a small business specializing in Information Technology (IT), Cybersecurity, Information Assurance (IA), SOA, Big Data Management, Program Management, and more for Federal, State, and Local agencies. We possess highly skilled engineers, providing innovative solutions backed by strong past performances. We are ISO 9001:2015, ISO 27001:2013, 20000:2018, and CMMI L3 certified and registered promising highest quality and services to all of our clients.

Benefits

Extremely competitive salary 95% employer paid for employee medical, dental, & vision coverages 100% employer paid for employee life, STD & LTD disability coverages 401k with company match Flexible Spending Account (FSA) for dependent & health care 11 standard holidays & 3 weeks of annual leave

ESS-3688 ESS-3689 Subject Matter Expert I - SME01 - SME

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More about this job

Skills

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

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