Advanced Cyber Security Analytics Engineer
D2 Technical Services
Salary undisclosed
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Description
**ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED**
Reporting to the Lead of Focused Operations, under the Branch Chief of Defensive Cyber Operations, you will be tasked with developing and maintaining defensive countermeasures for the enterprise. Working within a Fusion model, will collaborate with other teams within Focused Operations with the distinct task of proactively preventing a successful compromise and eradicating persistent adversaries already in the enterprise. This will be done through various means such as reviewing future and past intelligence reports, reviewing incident reports, through regular Purple Teaming exercises, and continuously validating Defensive Countermeasures already deployed.
More about your role:
- Analyzes trends and patterns of data on NGA networks to identify and predict previously undiscovered events and incidents and develop or tune rules/signatures/scripts as needed.
- Coordinates with Defensive Cyber Operations and Focused Operations to develop or tune rules/signatures/scripts.
- Coordinates with other Cybersecurity Operations Services to investigate and obtain information about potential sources of compromise on enterprise systems and develop or tune rules/signatures/scripts as needed.
- Correlates and analyzes precursors to incidents and develop or tune rules/signatures/scripts as needed.
- Will collaborate with the Cyber Data Analytics team to achieve SIEM alert efficiency though evaluation of valid alerts and false positives, and develop or tune rules/signatures/scripts as needed
- Work with the Cyber Incident Response Team by assessing ongoing incident activity to predict adversary responses and locations of compromise to assist with triage.
- Documents all work in the authorized ticketing system with a sufficient level of detail to ensure all stakeholders can systematically reconstruct the analysis;
- Provide input to reoccurring meetings and briefings as required.
Required Qualifications:
- Must be a US Citizen with an Active TS/SCI.
- 8+ years of related advanced cyber security analytics work experience.
- Must have a certification that is compliant with DoD 8140.01 and DoD 8570.01-M IAT Level III and CSSP Analyst.
- Experience with data mining or building queries in a SIEM.
- Strong understanding of signature development and tuning.
- Strong understanding of network protocols and analysis with protocol analyzers.
- Knowledge of static file signatures, i.e. "magic numbers" and how it applies to developing countermeasures for files in transit and that reside locally on a host.
- Good working knowledge of regular expressions.
Preferred Skills:
- Comfortable in a hex editor.
- Ability to write python/bash/powershell scripts.
- Ability to analyze each use case, as it pertains to detection logic, and identify the corresponding capability.
- Good understanding of Purple Team Tactics.
- Familiarity with security in a cloud environment and how it applies to visibility gaps, data lakes and data mining.
Additional Information
- All your information will be kept confidential according to EEO guidelines.
- Compensation is unique to each candidate and relative to the skills and experience they bring to the position. The salary range for this position is typically $90-$100k. This does not guarantee a specific salary as compensation is based upon multiple factors such as education, experience, certifications, and other requirements, and may fall outside of the above-stated range.
- Highlights of our benefits include Health/Dental/Vision, 401(k) match, Accrued PTO, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and more!
D2 Technical Services is committed to a merit-based recruitment process and encourages applications from all qualified individuals. As a Veteran-Owned Small Business, we particularly welcome applications from veterans who have the requisite skills and experience. Job applicants that are interested in one of our openings and may require a reasonable accommodation to participate in the job application or interview process, should contact us to request an accommodation.
About this role
D2 Technical Services is seeking an Advanced Cyber Security Analytics Engineer to join its Defensive Cyber Operations team in St. Louis. You'll work within a fusion model to develop and maintain defensive countermeasures against enterprise threats, combining proactive threat prevention with incident response and eradication of persistent adversaries. The role centers on analyzing network data patterns to identify and predict incidents, developing and tuning detection rules and signatures, and collaborating across multiple security teams—from incident response to cyber data analytics—to improve SIEM alert efficiency and validate deployed defenses through purple team exercises.
This position demands deep technical expertise: you'll need 8+ years of advanced cyber security analytics experience, strong proficiency with SIEM query building and signature development, solid knowledge of network protocols and file analysis, and working fluency with regular expressions. The preferred skills—Python, Bash, PowerShell scripting, hex editor work, and familiarity with cloud security—will strengthen your candidacy. You must hold an active TS/SCI clearance, be a US citizen, and possess DoD 8140.01 and 8570.01-M IAT Level III and CSSP Analyst certifications.
The role is in-office in St. Louis and offers a salary range of $90–$100k, with benefits including health/dental/vision coverage, 401(k) matching, PTO, life and disability insurance, and professional development reimbursement. This is a clearance-required position suited to someone with substantial hands-on experience in defensive analytics and a genuine interest in threat hunting and countermeasure development.
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Pay for this role
$90 to $100,000 per year
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