# Spencer Yoder > Engineering at OnePay Location: Chicago, Illinois, United States Profile: https://flows.cv/spenceryoder Experienced mobile and web engineer driving cross-platform React Native and React Native Web development. I lead mobile platform architecture, CI/CD, and feature delivery while mentoring engineers and enabling front-end teams across the organization. Focused on security, scalability, and high-performance apps, I thrive at the intersection of technical leadership, hands-on engineering, and delivering exceptional, user experiences. ## Work Experience ### Software Engineering Manager @ OnePay Jan 2026 – Present ### Staff Software Engineer @ OnePay Jan 2024 – Jan 2026 As the lead engineer for the mobile platform at One, I drive the architecture, development, and delivery of our cross-platform React Native and React Native Web app. I manage a team of engineers and QA while providing technical leadership, mentorship, and guidance to all front-end developers across the organization. I combine hands-on engineering with architecture planning, CI/CD optimization, and performance tuning to ensure a scalable, maintainable, and high-quality user experience. Focused on cross-platform consistency, developer enablement, and innovation, I help teams deliver features rapidly while maintaining long-term platform reliability. ### Staff Software Engineer (Mobile) @ Sock Jan 2023 – Jan 2024 As the lead mobile app engineer for our React Native app, I was dedicated to crafting an outstanding user experience through thoughtful design and robust engineering. I led architectural decisions to ensure seamless functionality and intuitive user interactions, leveraging GraphQL for efficient data management and maintaining a CI/CD pipeline for rapid iteration. Beyond technical execution, I focused on optimizing app performance, scalability, and reliability to support long-term growth. With a keen eye for design and extensive experience in mobile development, I helped shape an app that was both visually engaging and a delight to use. ### Senior Mobile Architecture Engineer @ BILL Jan 2021 – Jan 2023 Joined through Bill.com’s acquisition of Divvy, where I continued leading mobile architecture efforts for the Divvy app before helping define and drive the vision for a new unified mobile platform serving both organizations. I played a key role in shaping the long-term technical strategy, establishing the architecture, and guiding cross-functional teams across React Native, Swift, and Kotlin to deliver a scalable, high-performance foundation for future growth. Partnering with engineering and product leadership, I helped align platform modernization with business goals, introduced mobile best practices, and mentored engineers to accelerate delivery and quality across the organization. ### Mobile Application Developer @ Discover Financial Services Jan 2019 – Jan 2021 | Chicago, IL Created elegant UI features using React Native for the award winning Discover iOS and Android Mobile App with over 15 million downloads on the app stores. This provided customers a great user experience when accessing their Discover accounts. I was able to use data analytics from users sessions and crash reporting data, to improve the overall experience in the app. Using a testing first mentality, all new code that I wrote was 100% tested using unit and e2e automation testing. I worked on and maintained, the CI/CD pipeline on GitHub Actions to create a highly automated developer workflow. This in turn helped provide the business the most value, and time to create new and advanced features. I have advanced my knowledge of agile and have lead many ceremonies, to keep projects and goals on schedule. ### Campus Innovator @ Discover Financial Services Jan 2018 – Jan 2018 | Riverwoods, IL Participated in an agile team to develop a cross platform internal research mobile app that used Bluetooth low energy beacon to track positions of many users. This data was streamed to a backend server, to connect users together. I ensured that it met security, scalability, availability, and maintainability needs. ### IT Support Specialist @ Central CUSD 301 Jan 2014 – Jan 2019 | Burlington, IL Assisted teachers, students, and district administrators, with technical support, and troubleshooting on a wide verity of Windows, iOS, and ChromeOS devices. Collaborated with other technology members to preform hardware and software infrastructure installation and upgrades to the network. Created and maintained internal scripts, interactive websites, and programs, that were used by teachers, technology members, and staff to reduce work load. ## Education ### Bachelor of Science - BS in Computer Science Northern Illinois University Jan 2014 – Jan 2018 ## Contact & Social - LinkedIn: https://linkedin.com/in/spencer-yoder - GitHub: https://github.com/Spencer-Yoder - Website: https://theYoder.net --- Source: https://flows.cv/spenceryoder JSON Resume: https://flows.cv/spenceryoder/resume.json Last updated: 2026-03-22