About
Internal audit experience with hands-on analytics, tooling, and governance execution.
I’m Colby Kellersberger, CIA, CFE, CICA — an Internal Audit Manager focused on risk-based auditing, audit analytics, documentation quality, and practical tools that make audit work more consistent, efficient, and review-ready.
Risk-based audit perspective with a focus on supportable conclusions, clear documentation, and practical execution.
Hands-on development across Excel/VBA, Power BI, SQL, Python, Streamlit, and prompt engineering workflows.
Tools and analytics designed to improve consistency, documentation quality, review clarity, and repeatability.
Professional focus
Building practical audit workflows that improve coverage, consistency, and review clarity.
I focus on building audit tools and analytics that support real internal audit needs: planning, documentation, testing, monitoring, exception analysis, issue follow-up, and governance.
Audit tooling
Building Excel-based add-ins, templates, and workflow helpers that support repeatable audit documentation and fieldwork execution.
Audit analytics
Developing dashboards and applications for monitoring, sampling, anomaly detection, issue tracking, and targeted audit testing.
Governance and reviewability
Designing outputs that are easier to review, support, explain, and adapt for formal audit environments.
What I bring to audit teams
A bridge between traditional audit execution and modern analytics-enabled workflows.
I like building tools that are practical enough for real audit work — not just dashboards or scripts, but solutions that improve fieldwork execution, review clarity, documentation consistency, and repeatability.
Hands-on audit execution and management experience with a practical understanding of audit quality, review, evidence, and supportability.
Ability to translate audit methodology into repeatable tools, templates, analytics, dashboards, and workflows.
Practical analytics for testing, monitoring, risk assessment, anomaly detection, issue follow-up, and management reporting.
Strong emphasis on documentation quality, reviewability, defensibility, and responsible use of AI-enabled process improvement.
Portfolio themes
Explore the portfolio by capability.
Excel add-ins, workpaper templates, and risk assessment tools
AuditTicks Pro, workpaper templates, and planning tools designed for practical internal audit execution.
Audit AnalyticsDashboards, monitoring, sampling, and exception analysis
Power BI dashboards and Streamlit apps for audit testing, issue follow-up, anomaly screening, and risk-based analysis.
Data ProjectsSQL, transformation, modeling, and business risk review
Data projects framed around audit-style review, trend analysis, dashboard development, and management reporting.
Prompt EngineeringPrompt engineering for internal audit documentation
Structured AI workflows with audit-specific guardrails, non-fabrication rules, clarification triggers, and review controls.
Tools I use
Tools for analytics, automation, reporting, documentation, and workflow development.
These are the primary tools I use across audit analytics, automation, reporting, documentation, dashboard development, and AI-supported audit workflow design.
Tooling used across audit analytics, automation, workpaper support, dashboarding, and AI-enabled documentation workflows.
Working style
Practical solutions designed for real audit constraints.
Built for audit execution
I focus on tools that support actual audit fieldwork, testing, review, monitoring, and documentation needs.
Reusable workflows
I prefer repeatable templates, dashboards, scripts, and prompt patterns that can be adapted across audit activities.
Clear and supportable outputs
I design outputs with review clarity, evidence support, documentation quality, and defensibility in mind.
Working style: I like building tools that are practical enough for real audit work — not just dashboards or scripts, but solutions that improve fieldwork execution, review clarity, and repeatability.
Contact
Interested in audit tools, analytics, automation, or AI governance for internal audit?
Connect with me, view my work, or download my resume through the links below.