Kail F. Keusch

One Click Contractor

Carmel, IN | March 2017 - Present

Vertical SaaS for Home Improvement Contractors

Senior Full Stack Software Engineer

• Optimized PostgreSQL with Rails eager loading to eliminate N+1 queries, improving query speed and reliability with a 75% performance gain on key endpoints
• Improved SDLC by creating a DevOps workflow to report AWS deployments through GitHub Actions into Jira, establishing a baseline for delivery metrics
• Designed a reusable React component library documented with Storybook and Chromatic, standardizing UI patterns and reducing duplication
• Built a Redux-integrated HTML form system that simplified onboarding, reduced maintenance, and ensured consistent user experience
• Led the integration of React Router with event-driven data loaders, streamlining data fetching and improving navigation consistency
• Built a Salesforce integration in Rails/ActiveJob with Wisper event-driven flows, adding New Relic monitoring for reliable, org-specific data sync
• Mentored 3 junior developers, improving code review quality and accelerating feature delivery

Full Stack Software Engineer

• Established initial Rails/Postgres architecture and workflows that scaled with the company's growth
• Integrated Sign Now e-signatures via the Rails SDK and built a custom UI for contractor contracts
• Architected Price List management models and database relationships, incorporating versioning to streamline job quoting
• Partnered directly with founders and early customers to translate contractor workflows into the first production-ready SaaS features

Automotive & Systems Engineering

January 2005 - February 2017

Allison Transmission - Cummins Inc.

Spent a decade in automotive systems engineering (Cummins, Allison), developing embedded controls and diagnostic software. Built expertise in large-scale systems, statistical analysis, and simulation that now informs scalable SaaS design.