Workday & HRIS
Functional-technical ownership across HCM, Absence, Benefits, Recruiting, reporting, data, security, and post-go-live operations.
HRIS · Workday · Integrations · Systems
I build systems that make complicated work simpler.
I’m Mike Wernert, an HR technology and systems leader focused on Workday, integrations, operations, and practical applications of AI. I turn messy processes into systems people can actually use.
Workday
HCM, Absence, Benefits, Reporting
Integrations
Data, vendors, APIs, SFTP
Systems
Operations, governance, process design
AI
Practical tools for real workflows
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What I do
Where systems, people, and technology meet.
I work between technical systems and the people who depend on them, making complex HR technology clearer, more reliable, and easier to operate.
Integrations
Designing and troubleshooting the connections between HR platforms, vendors, files, APIs, SFTP endpoints, and downstream systems.
Systems & AI
Building practical tools and workflows that reduce friction, automate repetitive work, and make information easier to use.
Leadership & Operations
Turning ambiguity into priorities, ownership, documentation, implementation plans, service models, and teams that can scale.
Selected projects
Selected work. The thinking behind it.
A curated look at the kinds of problems I solve. Explore the methods, tradeoffs and evidence behind the work.
WORKDAY / GLOBAL OPERATIONS
Making global absence work across local rules
Supported global absence work spanning 26 countries, with roughly 80 leave plans and more than 20 holiday calendars.
HRIS / DATA QUALITY
Finding 57 people missing from an enrollment file
Reconciled approximately 750 benefits records and identified 57 people absent from an enrollment file, then built a revised file that passed structural validation.
SYSTEMS / AI PRODUCT DESIGN
Designing HR workflows for an AI-native system
Translated complex HR processes into structured employee journeys, role boundaries, policy rules and testable product scenarios.
WORKDAY / DATA CONVERSION
Bridging a legacy HRIS and a Workday implementation
Provided client-side technical support during a legacy HRIS-to-Workday migration, focusing on conversion, integrations, security and dependencies.
INTEGRATIONS / ROOT CAUSE
Turning integration complexity into clarity
Supported governance across 140+ HRIS integrations and diagnosed cross-system failures by working backward from business impact.
SYSTEMS / OPERATIONS
Building systems a growing team can run
Helped a rapidly growing organization establish repeatable collaboration, onboarding, support and internal technology practices.
How I work
Build clarity into the system.
Most difficult systems problems are not just technical. They are also about ownership, decisions and what happens when something changes.
01 / DIAGNOSEFind the real problemTrace the failure to its source, not just its symptom.
02 / DESIGNMake the tradeoffs clearUnderstand dependencies, people, security and support.
03 / BUILDDeliver the practical fixChoose a solution that works in the actual environment.
04 / TRANSFERMake it repeatableDocument ownership so the work survives a handoff.
From the lab
Things I’m building.
Small tools and experiments built around real problems. Most start with: “there has to be a better way.”
Working personal tool
Household Finance
A budget dashboard I built to track transactions, group spending, and make weekly and monthly decisions easier. It uses Google Sheets as the data layer, Apps Script for business logic, and HTML, CSS and JavaScript for the interface.
Apps ScriptGoogle SheetsHTML / CSS / JS
Built around real household workflows, including category targets and recurring review. The example dashboard on the right uses illustrative values, not private financial data.
How it worksHOUSEHOLD / OVERVIEW● Demo
Monthly spending snapshot
$3,240 / sample
Illustrative category activity
Illustrative UI concept. No live data or actual account balances.
Live AI tool
Workday Field Notes
An AI-powered Workday reference assistant built to explain concepts, explore configuration questions, and troubleshoot across HCM, Absence, Reporting, Integrations, Security, and more.
Concept
Integration Tracker
A lightweight console concept for integration inventory, testing, ownership, authentication, environments, and blockers.
About Mike
People first. Systems always.
I've spent my career solving operational problems from both sides of the system. I started in people leadership, where processes were only as good as the experience they created for employees and customers. That perspective still shapes how I work with technology.
After more than a decade in multi-location fitness operations, I moved deeper into enterprise HR technology: Workday, benefits, global absence, data, reporting, security and integrations. Today, my work also spans client-side HR systems advisory, product thinking and building the infrastructure growing organizations need.
Leading people and operations
Regional leadership across multiple Orangetheory Fitness studios. Responsible for teams, training, staffing, customer experience and the systems that support consistent execution.
Building depth in Workday & HRIS
Enterprise Workday administration and cross-functional HR technology work, including global processes, benefits, integrations, reporting and operational problem-solving.
Connecting technology, product & leadership
Chief of Staff and HRIS leadership work spanning client advisory, AI-informed HR product design, IT operations and repeatable support processes.
The common thread is straightforward: understand the people doing the work, find what makes the process harder than it needs to be, and build something that lasts.
Contact
Have a problem worth solving?
Open to conversations about Workday, HR technology, integrations, systems leadership, consulting, and interesting things worth building.