Dan Thoreson

Senior Software Engineer

Senior Software Engineer at DoorDash, building internal products that support sales and growth teams. My work focuses on designing systems and interfaces that simplify complex workflows and improve day-to-day usability.

Led end-to-end development of tools such as Store Scout, a prospecting platform used by hundreds of sales reps, and a modular lead ingestion framework for processing high-volume inbound data. Partnered closely with product and stakeholders to shape requirements, while driving UX decisions around information hierarchy, interaction patterns, and performance.

Focused heavily on creating fast, intuitive user experiences — establishing consistent UI patterns, optimizing large data interactions, and ensuring systems scale reliably under real-world usage.

Senior Software Engineer

Software Engineer at Zillow, focused on building core systems for Zillow Home Loans during its initial production rollout. Led the design and development of several foundational features, including a dynamic rules engine used for routing, assignment, and business logic configuration across the platform.

Built highly flexible, configurable systems that allowed business users to modify logic directly in production — reducing engineering overhead and significantly increasing speed of iteration. Developed user-facing tools such as a prioritized workflow component that became a primary interface for loan officers managing daily outreach.

Worked across the full stack to design scalable architectures, optimize performance, and improve usability, while also establishing engineering standards that increased code quality and reduced production defects.

Technical Lead / Senior Software Engineer

Technical lead for a clinical research organization, responsible for designing and developing a forecasting application used to model long-term global clinical trials. Improved system scalability and performance by replacing slow batch-based processing with more efficient architectures, enabling faster and more responsive user workflows.

Built custom user interfaces for managing complex study timelines, and worked closely with business stakeholders to translate requirements into usable, high-performing solutions. Mentored junior developers, contributed to architectural decisions, and presented designs to governance teams.

Software Engineer

Lead developer and architect for vertical CRM product for health insurance. Our product significantly increased efficiency of customer service representatives in healthcare, integrating with telephone systems and providing intelligent, UI-driven flows based on member needs. History of these workflows was persisted and stored along with member information, allowing representatives to access a full log of member information in the application.

Consultant

Consultant and developer assisting clients in optimizing their usage of Salesforce.com. Built a partner portal for a cyber security company, where partners could register leads and track progress throughout the sales cycle, as well as open cases and view knowledge base articles. This required a custom UI built on HTML5 and bootstrap, as well as special programmatic sharing via Apex. Other responsibilities included: assisting in pre-sales and marketing; requirements gathering; and project management duties, including tracking timelines and budget.