David Pilat

Redmond, WA · Hybrid

Stabilizing and modernizing revenue-critical SaaS while consolidating legacy applications into a single maintainable platform.

• Maintain legacy applications protecting a $40M revenue stream while cutting production incidents.
• Architected, built, and deployed back-end components for the consolidated site to support scalable APIs, improve performance, and replace legacy applications.
• Migrated a legacy website into one consolidated site to make maintenance and deployments consistent.
• Built GitHub Actions pipelines that run unit tests, build, and publish artifacts on PRs — improving CI reliability and reducing manual release steps and errors.
• Implemented structured logging with Serilog to speed debugging and incident resolution.
• Documented legacy behavior and authored runbooks to shorten troubleshooting and lower MTTR.
• Wrote versioned SQL migration and rollback scripts with verified backups to protect production data during deploys.
• Maintained ETL pipelines and tuned SQL jobs to stabilize nightly data loads for analytics.
• Refactored legacy C# modules into smaller libraries to simplify testing and reduce merge conflicts.
• Authored onboarding docs and Docker Compose setups to cut new-hire environment issues and ramp time.

Bellevue, WA · Hybrid

Built customer-facing features and platform capabilities for maid-service SaaS across the Seattle area.

• Delivered new features with C#, ASP.NET, and Entity Framework, including drip email and blogging.
• Implemented advanced drip email with Hangfire, increasing user retention by 10%.
• Designed a robust blogging platform with an admin interface and WYSIWYG editor.
• Built recurring orders with Hangfire, enhancing customer scheduling flexibility.
• Integrated Google Calendar, Geocoding, and Stripe APIs for improved functionality and transparency.
• Created an embeddable, cross-domain booking form in JavaScript for versatile site integration.
• Executed SQL database design and optimization strategies for improved efficiency.

Bellevue, WA · Hybrid

Built user-friendly web applications to enhance customer experience for Bizvalet's maid services.

• Developed responsive web features using HTML, CSS, and JavaScript.
• Collaborated on features to empower maid services around the Seattle area.