Senior Security Engineer Jobs

AnaVation

Location:
United States, Quantico

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

Come join our growing team and make a difference every day! AnaVation is seeking a highly skilled Senior Security Engineer to provide expertise, guidance, recommendations and document security configurations for the implementation of security tools and processes for government networks. The Senior Security Engineer shall include the installation, analysis, and troubleshooting of data/security networks and devices to include network and software system.

Job Responsibility:

Develop technical solutions and new security tools to help mitigate security vulnerability and automate repeatable tasks
Assist security personnel with responding to incidents across a wide array of technologies, mitigate and contain impacts, coordinate remediation efforts, and summarize recommendations for improvements
Provide up-to-date reports on security incidents and task process
Maintain documentation to support security strategies by outlining the requirements and benefits of specific security tools and/or solutions

Requirements:

At least six (6) years of experience as Security Analyst in a corporation, government, or service firm
Experience using and administering SIEM and analytics solutions (Splunk, Elastic Stack (Elasticsearch, Logstash, Kibana - ELK), or similar)
Experience conducting security assessments, penetration testing and/or ethical hacking, and identifying and mitigating vulnerabilities
Ability to engineer and deploy critical security analytic services including, but not limited to, IPS/IDS, EDR, and SIEM solutions to secure the enterprise
Industry security certification such as Certified Information Systems Security Professional (CISSP), Certified Information Security Manager (CSIM), Security+, or similar certification
Bachelor of Science Degree in Computer Science, Computer Engineering, Cybersecurity or related field of study
or in lieu of education, five additional years of relevant experience
Requires a Top Secret clearance and the ability to obtain a CI clearance with a polygraph

Nice to have:

Architect and operate a hybrid SIEM stack spanning Microsoft Sentinel and Splunk Enterprise across on-prem, Azure, AWS
design ingestion pipelines (DCR/AMA, Splunk UF/HF/HEC), normalization with ASIM/CIM, and cross-workspace/cross-tenant event sharing
Lead security architecture reviews and reference designs aligned to Zero Trust, NIST 800-53/207, CNSSI 1253
deliver threat models, control mappings, and security data flow diagrams for collection networks
Build and maintain detections-as-code: author and version KQL/SPL analytics, watchlists, and entity behavior rules with MITRE ATT&CK coverage
Administer a proactive threat-hunting program using KQL/SPL, Jupyter notebooks (MSTICPy), Sigma conversion, and purple-team ATT&CK emulations
convert hunt findings into resilient analytics and anomaly baselines
Optimize telemetry governance and cost: table/namespace policies, retention tiers/archival, Splunk license & index strategy, Sentinel ingestion caps and data filters, plus egress controls for FOUO/SCI data
Establish incident response operations and SLOs: unify case management (Sentinel Incidents, Splunk ES Notables), evidence handling, post-incident reviews, and executive dashboards/metrics for readiness and dwell time
Provide tiered platform support and enablement: backlog grooming, rule/playbook QA, change control, analyst/admin training, and ATO/RMF continuous monitoring package updates as required

What we offer:

Generous cost sharing for medical insurance for the employee and dependents
100% company paid dental insurance for employees and dependents
100% company paid long-term and short term disability insurance
100% company paid vision insurance for employees and dependents
401k plan with generous match and 100% immediate vesting
Competitive Pay
Generous paid leave and holiday package
Tuition and training reimbursement
Life and AD&D Insurance

Additional Information:

Job Posted:
December 06, 2025

Employment Type:

Fulltime

Work Type:

On-site work

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Senior Security Engineer