Analytics • Risk • Investigations • Security

Skylar Mayes

Investigative, analytical, and operations professional turning complex information into decision-ready insights.

U.S. Army investigations, intelligence, analytics, and operations professional with 6 years of experience leading complex investigations, analyzing large and diverse datasets, assessing risk, improving operational processes, and translating complex findings into decision-ready reporting for senior leaders. Hands-on technical experience includes SQL, Python, Power BI, Tableau, Excel, Microsoft 365, BigQuery, Looker, Google Cloud, and data-quality workflows.

View Portfolio Experience GitHub Tableau Public
6.3M+ Financial transactions analyzed
1.34M+ Loan records analyzed
28K+ Telecommunications records analyzed
45+ Formal investigative updates to senior decision-makers
100+ U.S. & international partner organizations supported
Professional Focus

Four complementary areas of experience.

My background sits at the intersection of data, investigation, risk, security, and operational decision support rather than within a single narrowly defined job function.

01

Data & Business Intelligence

SQL, Python, data validation, exploratory analysis, dashboard development, metrics, reporting, and data storytelling across large and multi-source datasets.

02

Risk, Compliance & Fraud

Fraud-pattern analysis, risk assessment, compliance monitoring, quality assurance, data-quality review, control-gap identification, and evidence-based recommendations.

03

Investigations & Security

Complex investigations, threat intelligence, OSINT, behavioral assessment, database research, multi-source analysis, investigative planning, and security-risk evaluation.

04

Operations & Decision Support

Requirements translation, process improvement, executive reporting, cross-functional coordination, quality control, distributed-team leadership, and decision support.

Professional Experience

Complex problems, large information sets, and high-stakes decisions.

Progressive responsibility across investigations, intelligence analysis, data analysis, reporting, team leadership, operational management, security, compliance, and international coordination.

Operations Officer / Operations & Analytics Lead

United States Army — Japan
Aug 2025 – Present
  • Manage investigative, analytical, reporting, compliance, and operational requirements across four teams totaling approximately 48 personnel and supporting 100+ U.S. and international partner organizations.
  • Produce three recurring weekly executive reports and prepare biweekly leadership briefings, synthesizing operational activity, emerging risks, significant developments, performance information, reporting requirements, and information gaps for senior decision-makers.
  • Analyze multi-source operational and investigative information to identify trends, risks, reporting deficiencies, resource requirements, information gaps, and issues requiring additional investigation or leadership action.
  • Maintain and validate spreadsheets, databases, SharePoint resources, sensitive-information profiles, reporting repositories, and tracking mechanisms for accuracy, completeness, consistency, compliance, deadlines, and organizational priorities.
  • Translate ambiguous stakeholder requirements into analytical products, recurring reports, tracking mechanisms, repeatable workflows, and executive decision-support materials.
  • Coordinate investigative activity, analytical reporting, and sensitive information sharing across geographically dispersed U.S. government, law-enforcement, intelligence, maritime-security, and international partner organizations.
Show additional experience
  • Review information for accuracy, completeness, consistency, and policy compliance; identify documentation and reporting deficiencies and coordinate corrective action before final submission.
  • Standardize recurring reporting, information-management, and documentation processes to improve data quality, reporting consistency, analytical clarity, and leadership situational awareness.
  • Apply Boolean search logic, structured analytical techniques, and database research to locate, compare, validate, and connect relevant information across multiple systems and sources.
  • Use intelligence and investigative reporting systems and repositories to maintain continuity, document activity, review reporting quality, and support higher-level information sharing and review.

Investigations Team Leader

United States Army — Japan
Jan 2025 – Aug 2025
  • Led an 8-person investigative and analytical team responsible for complex investigations across mainland Japan, providing investigative direction, analytical oversight, quality assurance, reporting review, operational leadership, and personnel development.
  • Personally directed an 18-month complex investigation involving 125+ investigative actions while providing investigative, analytical, reporting, and quality-control support across approximately 10 additional investigations.
  • Analyzed 28,000+ telecommunications records by integrating geospatial coordinates, device identifiers, IP/network information, connection metadata, financial information, and investigative reporting.
  • Applied geospatial, behavioral, pattern, and anomaly analysis to identify movement patterns, recurring locations, relationships, inconsistencies, risk indicators, and actionable investigative leads.
  • Delivered 45+ formal investigative updates and analytical briefings to senior decision-makers, translating complex technical and investigative information into concise findings, risk assessments, and recommended next steps.
  • Reviewed investigative reports and analytical products for accuracy, completeness, evidentiary support, analytical quality, consistency, and compliance with established reporting standards.
Show additional experience
  • Integrated financial information with telecommunications data, investigative reporting, technical information, and other sources to identify relationships, discrepancies, potential risks, and areas requiring additional investigation.
  • Developed investigative and analytical plans identifying information gaps and improving approaches to collection, research, analysis, and investigative coverage.
  • Maintained investigative continuity despite a significant reduction in available personnel while simultaneously performing team-leadership, investigative, analytical, and reporting responsibilities.

Counterintelligence Investigator / Analyst

United States Army — Indo-Pacific Region
Apr 2021 – Dec 2024
  • Conducted complex investigations, intelligence analysis, multi-source analytical research, information collection, threat analysis, and risk assessments throughout international environments in the Indo-Pacific.
  • Integrated financial information, telecommunications data, government records, databases, online sources, social media, geospatial information, and investigative reporting to identify patterns, relationships, discrepancies, risks, threat indicators, and investigative leads.
  • Conducted OSINT, social-media, person-of-interest, database, and Boolean-search research while corroborating information across multiple systems and sources.
  • Conducted investigations and threat assessments involving foreign intelligence services, insider threats, international terrorist organizations, international criminal organizations, and other security risks.
  • Led a specialized counter-espionage surveillance team during an assignment in South Korea, directing operational planning, information collection, surveillance activities, and reporting in a sensitive threat environment.
  • Coordinated investigative requirements and sensitive information sharing across 15+ U.S. interagency and international partner organizations while operating under strict information-handling, documentation, and procedural requirements.
Show additional experience
  • Performed approximately one year of international operational travel with substantial autonomy, supporting investigations, analytical research, information collection, and security requirements across multiple countries.
  • Supported operations in Southeast Asia through research and analysis of regional security conditions and international terrorist organizations, translating findings into threat assessments and risk-informed decision support.
  • Evaluated behavioral indicators and investigative information to assess potential for violence or escalation and incorporated findings into investigative reports, threat assessments, and recommendations.
  • Independently conducted a comprehensive anti-terrorism base assessment evaluating threats, vulnerabilities, and risk exposure to support physical-security and risk-mitigation decisions.
  • Provided protective and executive-protection intelligence supporting senior leaders during bilateral operations in foreign environments.
  • Reestablished an evidence-management capability supporting 24 investigators and developed reference materials and operational guidance improving evidence accountability, documentation quality, reporting consistency, and procedural compliance.
  • Developed and delivered 12 professional training sessions supporting qualification, development, reporting quality, and operational readiness of junior personnel.
  • Used multiple intelligence and investigative reporting systems and repositories to draft, review, manage, and preserve investigative and intelligence reporting while supporting information sharing and organizational continuity.
Analytics Portfolio

Applied analytics with business and risk context.

Portfolio projects demonstrate the complete analytical process: preparation, validation, querying, analysis, visualization, interpretation, and communication.

Fraud & Financial Analytics

PaySim Financial Fraud Analysis

Queried and analyzed simulated mobile-money transactions to identify fraud concentrations, behavioral patterns, anomalous activity, transaction-level risk characteristics, and weaknesses in existing detection logic.

6.3M+ transactions analyzed • 0.19% system detection rate identified
SQL SQLite Tableau Fraud Analytics EDA Risk Analysis
GitHub → Tableau →
Financial Risk & BI

Loan Portfolio Risk & Profitability Analysis

Prepared and analyzed completed Lending Club loan records to examine default risk, profitability, exposure, borrower characteristics, portfolio segmentation, and performance trends.

1.34M+ completed loan records prepared and analyzed
Python pandas Power BI Excel scikit-learn Data Quality
GitHub →
Data Quality & Integration

Business Licensing & Inspection Analysis

Cleaned, validated, transformed, and integrated public datasets covering business licenses, ownership, and food inspections to identify data-quality concerns, relationships, inconsistencies, and operational patterns.

Multi-source integration and data-quality analysis
Python Power BI Data Validation Data Cleaning Multi-Source Analysis
GitHub →
Technical & Professional Skills

Capabilities backed by applied work.

Technical proficiency labels reflect professional use, completed analytical work, formal technical development, and repeated application rather than arbitrary percentage ratings.

Technical Proficiency

SQL Strong Working Proficiency
Large-scale transaction querying, aggregation, fraud analysis, validation, behavioral comparison, and exploratory analysis.
Python / pandas Strong Working Proficiency
Large-scale cleaning, transformation, validation, feature engineering, multi-source analysis, data-quality work, and financial analytics.
Power BI Strong Working Proficiency
Interactive dashboards, financial-risk analysis, data-quality analysis, management reporting, executive-facing visualization, and DAX-enabled analytical work.
Tableau Strong Working Proficiency
Interactive fraud-analysis dashboards, large-scale transactional visualization, analytical storytelling, and continued Tableau technical development.
Excel Strong Working Proficiency
Extensive professional use across data analysis, financial analysis, operational tracking, reporting, quality control, metrics, and management-focused analytical products.
Microsoft 365 Strong Working Proficiency
Extensive professional use of Excel, Word, PowerPoint, Outlook, Teams, and SharePoint across analytical reporting, investigative documentation, executive briefings, presentations, collaboration, information management, and operational coordination.
Looker Working Proficiency
Completed Google Cloud training in Looker analysis, visualization, and preparation of data for dashboards and reports.
BigQuery Working Knowledge
Google Cloud analytics training and continued cloud-data development.
Google Cloud Working Knowledge
Completed Google Cloud Data Analytics Certificate and Data Analyst Learning Path.
DAX Working Knowledge
Applied within Power BI analytical, reporting, and visualization workflows.
GitHub Working Knowledge
Portfolio repositories, project documentation, version-controlled website deployment, and GitHub Pages hosting.
HTML / CSS Foundational / Applied
Applied through the design, development, maintenance, and deployment of this responsive professional portfolio website.
DNS & Domain Configuration Foundational / Applied
Applied through custom-domain deployment, DNS configuration, GitHub Pages integration, business-email routing, and email authentication configuration.

Professionally Applied Capabilities

Analytics & Data

Exploratory Data Analysis Data Validation Data Quality Data Cleaning Data Transformation Trend Analysis Pattern Analysis Financial Analysis Geospatial Analysis Data Visualization Dashboard Development Metrics & Reporting

Risk & Compliance

Risk Assessment Fraud Analysis Compliance Monitoring Quality Assurance Control Gap Identification Evidence Review Policy & Procedure Compliance Operational Risk

Investigations & Security

Complex Investigations Counterintelligence Threat Intelligence Protective Intelligence OSINT Social Media Research Database Research Boolean Search Behavioral Threat Assessment Investigative Planning Multi-Source Analysis

Reporting & Communication

Intelligence Reporting Investigative Reporting Executive Reporting Analytical Reporting Report Writing Reporting Quality Assurance Executive Briefing Senior-Leader Briefing Information Synthesis Decision-Support Products

Operations & Leadership

Requirements Translation Process Improvement Stakeholder Management Cross-Functional Coordination Team Leadership International Coordination Information Management Decision Support Training & Development
Education & Credentials

Formal education and continued technical development.

M.S. — Data Analytics

University of Maryland Global Campus
Focus in Artificial Intelligence / Machine Learning

Expected July 2027

Graduate Certificate — Cybersecurity Management & Policy

University of Maryland Global Campus

Expected July 2027

B.S. — Legal Studies

University of Maryland Global Campus
Cum Laude • GPA 3.885 • Pi Gamma Mu

Completed 2026

A.A.S. — Intelligence Operations

Cochise College

Completed 2026

Google Cloud Data Analytics Certificate

Google Cloud technical development in cloud-based analytics, querying, visualization, data preparation, and analytical workflows.

Completed 2026

Google Cloud Data Analyst Learning Path

Structured Google Cloud technical development focused on the data analyst workflow.

Completed 2026

Analyzing and Visualizing Data in Looker

Google Cloud completion badge covering Looker-based data analysis and visualization.

Completed 2026

Prepare Data for Looker Dashboards and Reports

Google Cloud skill badge focused on preparing analytical data for Looker dashboards and reporting.

Completed 2026

Tableau Desktop Specialist

Continuing formal development in Tableau visualization and analytical reporting.

In Progress

CAP-Pro (CAP-P) — INFORMS

Professional analytics certification development.

Expected February 2027
Additional Technical Project

Professional Portfolio & Domain Infrastructure

Designed, developed, and deployed a responsive professional portfolio using HTML, CSS, GitHub, and GitHub Pages. Configured a custom domain through Cloudflare DNS and implemented domain-based professional email using Zoho Mail, including domain verification, MX routing, SPF, DKIM, and DMARC authentication to support secure professional communications.

HTML CSS GitHub GitHub Pages Cloudflare DNS Custom Domain Zoho Mail MX SPF DKIM DMARC
Contact

Interested in working together?

I am pursuing opportunities across data analytics, business intelligence, risk, compliance, investigations, security analysis, and analytically focused operations.

Email Me GitHub Tableau Public