Designing complex, data-heavy systems for enterprise software companies

I'm Matthew Zillhardt, Senior Product Designer who has shipped for Optum, DuPont, Subaru, and BeyondTrust. I design AI platforms, analytics dashboards, and workflow tools that reduce decision times, cut operational cost, and hold up at scale. My work has cut analyst decision time by 33%, claims processing time by 27%, and design-to-dev handoff time by 30%.

Who I work with: Enterprise software companies building AI, analytics, and workflow products for data-heavy industries.

case studies

Core Differentiators

Currently open to Senior/Staff Product Design roles in federal, healthcare, AI, or enterprise software.

Interested in working together? Email me or connect on LinkedIn.

Optum - Project Ana

Turning raw federal data into faster decisions: a 0→1 AI platform for policy researchers and data scientists

I led 0→1 design on an AI platform for federal policy researchers and data scientists — turning raw federal data into faster decisions by integrating safety guardrails and WCAG accessibility.

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Subaru of America - warranty claim system

Redesigning warranty claims to cut processing time by 27% for dealership warranty administrators

Subaru of America (SoA) had an aging warranty system that their dealerships were utilizing. They needed an updated system built off of Angular and wanted to address certain usability concerns and make the system more seamless for the end user technicians.

Same problem, different domain: enterprise workflow software where a slow interface directly impacts customer experience and operational cost.

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DuPont - MCI Semiconductor Insights

Helping semiconductor analysts spot production issues 33% faster through data visualization

The DuPont MCI Semiconductor Insights web application was created due to the difficulty that their semiconductor group had with gathering data needed to make integral business decisions. This application scraped data from the web and allowed users to manually upload data, at which point the system would generate data visualizations in the dashboard system for the end users. This allowed the analysts to make more informed choices more quickly.

Same problem, different domain: enterprise analytics where analysts need to spot issues and opportunities before costly delays pile up.

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Optum - RHRP document processor

How I cut analyst decision time by 33% on a federal document-processing AI platform

I designed dashboards and data visualizations that cut analyst decision time by 33% on a federal document-processing AI platform — so policy researchers could act on data instead of hunting for it.

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a preview image of the Optum RHRP application. It shows the browser application on a monitor

How I approach enterprise software design

Design for batch workflows, not single tasks.

Enterprise users work in stacks. Technicians enter claims in a single session. Analysts process documents in batches. Security technicians triage multiple issues at once. The flow should be optimized for rapid sequential entry, not one-off submissions. At Subaru, that meant starting a new claim in two clicks. At Optum, that meant a history table that let analysts jump back into any prior process.

Show bad news first.

Problems should surface immediately, not at the end of the workflow. Inline validation prevents wasted work and builds trust. At Subaru, moving validation from the end of the claim to the point of entry reduced rework and sped up processing. At Optum, flagging failing documents at the top of the queue let analysts triage the most urgent issues first.

Build the system, not just the screens.

A single dashboard is not a design solution. It is a component of a larger system. Design tokens, reusable components, and consistent navigation patterns make the next feature faster to build and more consistent. At Optum, extending the Harmony design system with AI-specific components made every subsequent AI feature faster to ship. At Subaru, building a standardized Material Design system was necessary to ship the MVP on a short timeline.

Pressure-test your own designs.

Enterprise software fails in edge cases. Unusual values. Missing data. Unexpected user behavior. I used Microsoft Copilot to audit dashboard designs for edge cases I might have missed. The best way to catch blind spots is to actively look for them.

Validate with the people doing the work.

Stakeholder proxies are useful for alignment. They cannot replace watching real users work. At Subaru, I interviewed approximately a dozen current and former technicians. At SSA, I interviewed field office managers directly. At Optum, I partnered with the Senior Director of Architecture and the Senior Technical Project Manager to define what success looked like before designing anything.

This is the same problem I solve across federal, analytics, and enterprise software: complex, data-heavy workflows where a slow interface directly impacts operational cost and customer experience.