Bill V.

I'm a senior full-stack engineer who helps businesses get AI into production without the breakage. I’ve built and shipped production mobile and web applications across iOS, Android, and modern web platforms, with multiple App Store and Google Play releases, and applications ranging from early MVPs to complex production software used by real businesses. My focus is reliable, scalable systems: architecture decisions, API design, authentication, data modeling, and long-term maintainability, not just prototypes. I'm a hands-on developer with experience delivering generative AI applications, healthcare workflow platforms, industrial field-service systems, and published mobile and web apps. My work also includes NASA's WeatherSats AR application, for which I received a Robert H. Goddard Award. I work with business owners, product leaders, and engineering teams who need someone to understand the problem, make sound technical decisions, and carry implementation through deployment. WHAT I CAN HELP YOU BUILD AI integration: AI assistants, conversational interfaces, and generative AI features connected to your application, authentication, and backend services. Workflow automation: Scheduling, notifications, reporting, background processing, and data synchronization that reduce repetitive work and keep teams informed. Software and API integration: Connect existing applications, third-party services, databases, and cloud systems with clear data flows and dependable error handling. Custom business applications: Web and mobile tools for operations, field teams, customer workflows, and internal administration. Production readiness: Review and strengthen prototypes or existing applications, addressing architecture, authentication, database design, testing, and deployment. RELEVANT PROJECTS Generative AI application Built a cross-platform chatbot using React Native and the Pryon SDK, with Auth0 authentication, progressively rendered AI responses, interactive citations, and integrated video content. Industrial field-service platform Architected and built a mobile application and backend APIs for technicians, including a hierarchical facility data model, offline synchronization, secure authentication, and cloud integration. Healthcare operations platform Re-architected a surgical workflow application and implemented scheduling integrations, real-time updates, database improvements, and targeted notifications based on workflow status and facility rules. NASA WeatherSats AR Contributed Unity/C# engineering and augmented reality features to an application published on iOS and Android and used at NASA's Goddard Space Flight Center. HOW I WORK I start with the workflow, the systems involved, and the result you need. From there, I define a practical scope, identify dependencies, and build in reviewable increments. You work directly with me on architecture and implementation. I focus on clear communication, maintainable code, and a system your team can operate and extend. CORE TECHNOLOGIES TypeScript, JavaScript, React, Next.js, Node.js, React Native, Swift/SwiftUI, Kotlin, C#, PostgreSQL, SQL Server, Firebase, Azure, AWS, REST APIs, and third-party AI SDKs. Send me a brief description of your current systems, the workflow you want to improve, and where you need help. U.S.-based | Rutgers CS graduate (4.0 GPA) | Available for hourly or fixed-scope work