Principal Cybersecurity Engineer – FirstNet Data & Platform

AT&T

Principal Cybersecurity role leading security governance, architecture, and AI-driven automation for AT&T's FirstNet. Requires extensive experience in cybersecurity, data analysis, and engineering practices.

Posted 4/30/2026full-timeChantilly • Virginia • 🇺🇸 United StatesLead💰 $155,400 - $233,200 per yearWebsite

Tech Stack

Tools & technologies

AWSAzureCloudCyber SecurityPython

About the role

Key responsibilities & impact

Provide expert leadership over security governance, architecture, and risk decisions impacting mission-critical systems for the FirstNet program.
Design, build, and own security automation and AI-enabled capabilities that reduce manual control execution, reporting, and risk analysis across the FirstNet security lifecycle.
Design, build, secure and maintain security control data and AI-driven security capabilities that improve efficiency, consistency, and visibility of the FirstNet security posture.
Analyze large or complex data sets (e.g., vulnerability, configuration, telemetry, or operational data) to identify security trends, anomalies, and systemic risk.
Perform security architecture and risk reviews for FirstNet platforms, services, and APIs, translating findings into implementable engineering and data solutions.
Build and enhance backend services, pipelines, or integrations (hands-on development expected), to orchestrate automated security workflows, control checks, and data-driven decisioning, with minimal emphasis on user interface work.
Drive secure delivery practices by contributing to and improving CI/CD pipelines, security-as-code patterns, data quality checks, and automated validation and evidence generation for security controls.
Partner with engineering, product, and operations teams to operationalize security and data requirements into scalable controls, standards, and procedures supporting FirstNet.
Brief leadership and stakeholders on cybersecurity posture, automation-driven efficiency gains, data-driven risk insights, and remediation progress.

Requirements

What you’ll need

Master’s degree in Cybersecurity, Computer Science desired.
At least 7 years of equivalent Cybersecurity experience.
Demonstrated experience designing and implementing security automation (e.g., control checks, data ingestion, reporting, risk scoring, or remediation workflows) to reduce manual effort and improve operational scale leveraging AT&T available AI Technology.
Strong hands-on experience with data analysis or data driven engineering, including working with structured and unstructured datasets to support security or operational outcomes.
Advanced proficiency in Python and applied AI/ML, with experience using cloud native services (AWS and Azure) to build automations, intelligent analytics, and AI-assisted security workflows (e.g., Glue, Athena, QuickSight, Sagemaker, Bedrock, Power Automate, Copilot for Git and VS Code).
Working knowledge of databases, data models, and data processing concepts relevant to security analytics and reporting.
Demonstrated experience improving engineering outcomes through CI/CD, automation, and disciplined code review practices.
Lead at enterprise scale and translate data insights into actionable security decisions.
Preferred certifications include CISSP, CISM, and CRISC.

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

security governancesecurity architecturerisk analysissecurity automationdata analysisPythonAI/MLCI/CDdata processingsecurity controls

Soft Skills

leadershipcommunicationcollaborationproblem-solvinganalytical thinking

Certifications

CISSPCISMCRISC