# Yanchung Cheng > Building SafePlay Academy | Safe Multiplayer Educational Entertainment for Kids 5-14 | Dad Protecting the Next Gen Online Location: Provo, Utah, United States Profile: https://flows.cv/yanchung I am a product-focused founder and full-stack engineer building ventures on a foundation of rigorous customer discovery. My current focus is SafePlay Academy, a direct response to the growing need for safe, engaging online spaces for kids. We are creating a moderated platform where children can play educational games socially, inspired by the spirit of classics like The Oregon Trail—in small, verified groups. My approach is rooted in continuous, direct feedback from parents to ensure we are solving a real, painful problem. This methodology was honed during my time as a full-stack engineer at Bill.com, where I gained the experience to build complex, reliable systems. While I have the skills to build the product right, my primary focus is on first discovering the right product to build. I believe the best products are born from a deep, evidence-based understanding of the customer's world, and I am applying that principle to create a better digital environment for the next generation. ## Work Experience ### Senior Software Engineer @ BILL Jan 2022 – Jan 2025 | Utah, United States Owned and scaled mission-critical backend services for BILL's flagship AP/AR automation platform, directly supporting a primary revenue stream in a high-growth, post-IPO environment. Led the technical execution for a strategic integration with Bill.com, owning the entire lifecycle from architectural design to a successful production launch that unlocked a new customer channel. Developed the core Java services for the integration, creating a streamlined workflow that solved a key pain point for our target accountant market and validated a critical business hypothesis. Owned platform stability for a key customer segment, shipping reliability improvements that protected the user experience and built essential trust with early adopters. ### Founder @ Intervallum Studio Jan 2021 – Jan 2022 Conceptualized, built, and launched a SaaS platform from the ground up. Owned the entire product lifecycle from customer research to backend development (Ruby on Rails) and deployment. Executed a lean, customer-development-focused process, conducting 200+ discovery interviews to validate core problem hypotheses and de-risk the product roadmap. Translated raw user feedback into a ruthlessly prioritized feature set for a Minimum Viable Product (MVP), protecting limited capital by avoiding unnecessary development. Built and iterated on an interactive prototype, learning firsthand the critical importance of rapid feedback loops in aligning technical execution with market reality. ### Founding Engineer @ WORKPLACE21 Jan 2019 – Jan 2021 Architected and built a dynamic Rails and React dashboard that translated raw employee communication data into actionable business insights for leadership. Engineered a scalable backend with RESTful APIs and Sidekiq to enable real-time data aggregation, improving the speed and accuracy of reporting. Led a five-member development team, successfully delivering the project on schedule while enforcing high standards for code quality and testing. ### Shopify Developer @ Borboleta Beauty Jan 2019 – Jan 2020 Led full-site redesign, improving UX and visual appeal across desktop and mobile. Consolidated 150+ products into 15 optimized offerings with multiple variants, streamlining discovery and improving customer experience. ### Ruby on Rails Developer @ T2 Modus Jan 2017 – Jan 2018 Developed a Rails analytics platform integrating LexisNexis and dealership APIs with PostgreSQL backend and jQuery frontend. Optimized database queries, improving data processing speed by 40% and enabling actionable insights. Reprocessed complex FSTP datasets into a modern database schema, improving reliability and operational efficiency. ## Education ### Bottega University ### Startup Ignition Jan 2025 ## Contact & Social - LinkedIn: https://linkedin.com/in/ycbc - Website: https://mencarii.com/ --- Source: https://flows.cv/yanchung JSON Resume: https://flows.cv/yanchung/resume.json Last updated: 2026-03-22