Billy H.

About Billy H.

I strive to build software that improves everyday lives and love fast feedback loops. The languages/technologies that I use most often include: Ruby on Rails, JavaScript, HTML, CSS, and REST. For the past twenty years I\'ve focused on full-stack and single page web applications, cloud solutions, and restful APIs.Summary of my Impact on Kajabi’s Public APICustomer‑centric mindset • Placed customer experience and satisfaction at the heart of every solution, working directly with external developers, internal support teams, and product managers to translate real‑world use cases into robust API features. End‑to‑end delivery • Single‑handedly took the Public API from concept through production, overseeing architecture, implementation, testing, documentation, and launch.Documentation champion • Designed and automated the generation of comprehensive Swagger/OpenAPI specs, changelogs, release notes, and demo videos, ensuring developers could onboard quickly and confidently. See https://developers.kajabi.comCross‑functional collaboration • Partnered with engineering, CX, QA, and project management to align roadmaps, prioritize work, and resolve blockers—acting as the de‑facto technical product owner for the API.Operational excellence • Implemented monitoring (Datadog dashboards, SLOs), on‑call incident response, and post‑release health checks, guaranteeing high availability and rapid issue resolution.Community building • Founded and led the internal API Guild, organized regular meetings, curated agendas, and facilitated knowledge sharing across teams, fostering a culture of API‑first thinking.Strategic evangelism • Articulated a “race‑track” vision for the API—from initial customer contact through purchase and analytics—demonstrating how richer data and automation drive higher revenue for Kajabi heroes.Innovation & integration • Migrated legacy internal endpoints to the public API, expanded integrations, and introduced new data exposure points.Quotes • “The public API wouldn’t be available without your drive & dedication, Billy. You fulfilled several roles—from ideation and design to vision and documentation.” - Manager • \"Great job! It\'s been a pleasure to be on the Beta Team!\"- Customer

Experience

1. Senior Product Engineer

   SumIt Software

   Dec 2025 — Present · NY, US

   Building fintech software to help Family Offices wrangle the complexity of accounting for multi-entity general ledgers.