DAVID SILVERLIGHT

Professional Summary

Senior Cross-Platform Application Developer with 12+ years of experience and 30+ shipped apps for clients including Microsoft, UPS, T-Mobile, and Midmark. Deep, hands-on expertise across both .NET MAUI and client-side frameworks like React and Angular, building and modernizing large-scale enterprise applications spanning architecture, performance, UI, and complex backend integration. An early adopter of .NET MAUI with an equally strong command of the modern client-side stack (TypeScript, NgRx, Redux, GraphQL, REST), backed by a long track record as an enterprise application developer delivering in distributed teams, and mentoring developers along the way.

AI-Augmented Engineering

Integrate AI tooling, primarily Claude Code, into a continuously refined development workflow that increases both velocity and code quality. A decade of hands-on .NET MAUI and React Native experience is what makes this effective: it allows me to evaluate AI-generated code critically, accepting sound solutions while identifying suggestions that work but introduce security vulnerabilities, subtle logic errors, or maintainability risks that would otherwise go unnoticed.

Professional Highlights

Enterprise Cross-Platform Delivery. Owns architecture, UI and performance on mission-critical applications across .NET MAUI, React and Angular, including, on the most recent engagement, a vNext rebuild that cut clicks ~30% and eliminated 20-second data-loading stalls.

Remote Delivery at Scale. A decade embedded in distributed enterprise teams through Teams, Slack, Azure DevOps and Git, from a 300-screen fintech platform to a badged on-campus Microsoft engagement.

Mentoring and Community Leadership. Coaches developers on MVVM, SOLID and presentation patterns; led the South Florida .NET MAUI group for five years and presented at CodeCamp 2024 and DevCon 2022.

Technical Skills

Professional Experience

RamTech, Remote  |  2025 – Present

Senior .NET MAUI Engineer

Delivered UX improvements, performance optimizations, and .NET MAUI-specific heavy-lifting work on gMobile, an Esri/ArcGIS-based field app supporting data collection and asset inspection: damage assessment, tracking and traceability, leak survey, and gas-insight inspections. Re-architected the app's workflows to design and build the vNext release, replacing multi-screen navigation with a single centralized mapping surface and unified toolbox.

• Impact: ~30% fewer clicks per feature surfaced on the map, and eliminated data-loading initializations that averaged ~20 seconds each, turning a previously sluggish workflow into a crisp, responsive experience for the high-frequency task of adding assets to the map
• Technologies: .NET MAUI, Prism, Esri ArcGIS Maps SDK, Telerik UI for .NET MAUI, MAUI Calendar, Newtonsoft.Json, SQLite

ATrack Solutions, Remote  |  2026

.NET MAUI | Next.js Engineer (Contract) | ABA Therapy Clinical Platform

Worked on ATrack's web-based ABA clinical workflow application alongside their .NET MAUI mobile platform. Provided development support on ATrack Mobile, a .NET MAUI application (built on Prism) delivering an all-in-one data-collection and clinical-practice platform for Applied Behavior Analysis (ABA) therapy and autism service providers. Cleared a substantial defect backlog, delivered requested features, and resolved issues stemming from an improper Xamarin.Forms-to-.NET MAUI migration. Developed a system for supporting their applications and triaging the exceptions users encounter, incorporating a combination of Sentry and UXCam, forming an open-ended, configurable layer that can be extended with new tools or selectively disabled as needs evolve.

• Impact: resolved all known .NET MAUI defects; the product owner credited the work with finally giving him confidence in the app's stability
• Technologies: .NET MAUI, Next.js, GraphQL, REST, Jest, Prism.Maui, CommunityToolkit.Maui, DevExpress, Sentry.Maui, Sharpnado, Newtonsoft.Json, SQLite, UXCamDotNet

Sherlock Talent, Remote  |  2024 – 2025

React Native Developer | Time & Expenses Mobile App

Built and maintained a cross-platform React Native application (iOS/Android) in TypeScript from a single codebase, enabling employees to log time and expenses, punch in and out, submit time entries and timesheets, view work and client details, and manage scheduling from mobile.

• Integrated GraphQL APIs for efficient, precise data fetching, and collaborated with .NET (ASP.NET Core / Web API) backend developers to deliver secure, scalable services
• Managed application state with Redux/Context API and consumed both GraphQL and REST endpoints following a maintainable, componentized mobile architecture
• Optimized performance and responsiveness via lazy loading
• Wrote unit and integration tests with Jest to ensure reliability and reduce regressions
• Technologies: React Native, TypeScript, GraphQL, REST, .NET / ASP.NET Core, Redux/Context API, Jest

UPS, Remote  |  2023 – 2024

.NET MAUI Engineer (Contract) | Mobile Delivery Feasibility Spike

Conducted the .NET MAUI feasibility spike for UPS Mobile Delivery, the application used by UPS drivers on the DIAD 6 handheld device to scan delivered packages. Validated that the migration was viable end to end before UPS committed to the broader effort.

• Migrated and verified critical third-party dependencies, Trimble Maps and barcode scanning, running correctly under .NET MAUI
• Rebuilt UPS's in-house Xamarin.Forms component library in .NET MAUI, confirming identical UX and functionality to the original
• Re-architected to remove Prism from the stack in response to Prism licensing changes, replacing it with a lighter MVVM approach
• Impact: established spike success by demonstrating driver login and the itinerary dashboard running in the MAUI build, with Prism removed and all migrated components functioning
• Technologies: .NET MAUI, Trimble Maps, MAUI Essentials, MVVM Helper, CommunityToolkit.Mvvm, SQLite, Xamarin.Forms

Caffeinated Shark Labs, Miami, FL  |  Nov 2014 – Dec 2025

Principal .NET MAUI Engineer & Founder

Independent consultancy delivering .NET MAUI and Xamarin.Forms engagements for clients from startups to enterprises. 30+ shipped apps showcased at DavidSilverlight.com. Selected engagements:

.NET MAUI engagements (2022 – Present)

• DSD Route Manager (2025): Mobile route accounting for the direct-store-delivery industry
• Moultrie Mobile (2022 – 2023): Trail-camera and property-monitoring app, migrated from Xamarin.Forms
• Midmark DECO IoT (2022): Setup toolset for medical smart devices over a custom REST API
• SearchMed: Medical-professional search; improved performance ~30% and cut load times ~50%
• Safe4Dogs, MovieBuff, Numbers, POS Prototype: additional .NET MAUI applications

Xamarin.Forms engagements

• MVP Healthcare (MyMVP) (2021 – 2022): Member app for plan and benefits information
• Real Green Systems (2021): Field-service app with GPS tracking and scheduling
• BCBS My BluePrint (2019 – 2020): Blue Cross Blue Shield member plan and coverage app
• Nalco Lock App: Field tool for tank locks, delivered on a condensed timeline to support 28,000 installations on schedule
• Salon Scheduler, Pet Pixie, UAS Trakker, StagePro, MyLines, Kinship Navigator: additional Xamarin.Forms applications

Liquidware Labs, Remote  |  2020 – 2022

Lead Angular Developer | Stratusphere API Builder

Developed the API Builder, a graphical query builder for Stratusphere's REST API that replaced hand-written calls and database-schema knowledge, plus an "Inspector" tool for scoping queries by data type (users, machines, applications, network) with refined column and filter controls.

Architecture Highlights

• Designed and implemented a modular Angular 9 SPA with lazy components, and scroll-position restoration
• Built a centralized NgRx store with separate builder, users, and spotChecks slices; authored 20+ reducer handlers and async effects for session verification, inspector metadata, and basis-name fetching
• Architected a three-layer HTTP stack: DataService (raw HTTP with retry logic and localStorage caching), ApiService (business logic, RxJS Subject-based pub/sub), and BuilderService (CRUD endpoints), reducing component coupling and enabling offline-first caching of inspector metadata
• Established dynamic UI theming (dark/light mode, multiple color schemes) via DOM stylesheet replacement and PrimeNG ::ng-deep overrides
• Built an i18n pipeline via TranslationService with JSON locale files and a dedicated Languages module supporting runtime locale switching
• Delivered CSV/JSON export, clipboard copy, query history (localStorage), and saveable/shareable favorite queries via URL-encoded query parameters

Tech Stack: Angular 9, NgRx 9, RxJS 6, PrimeNG, TypeScript 3.8, Chart.js, AmCharts 4, XLSX, Jasmine/Karma, HTML5 localStorage/Cookies

Microsoft, Redmond, WA  |  2019

Xamarin Developer (Contract) | Marcel AI Platform

Badged Microsoft contractor, based on the Microsoft campus, serving as a Xamarin developer on the team that built the initial release of Marcel, an AI-powered platform connecting 100,000 employees and reinventing the way they work by helping people find collaborators, discover inspiring work, schedule meetings, improve work quality, and follow up on committed deliverables.

• Key features: collaborator discovery, work and inspiration feed, meeting scheduling, quality and deliverable tracking
• Technologies: Xamarin.Forms, Microsoft AI, Prism, RESTful services; built on Microsoft AI and delivered in partnership with Publicis.Sapient

Yocum Technology Group, Remote  |  Sep 2017 – Oct 2019

Xamarin.Forms Developer | T-Mobile Money

Contributed to T-Mobile Money, a customer-facing Banking-as-a-Service platform for a major national carrier, spanning 300+ screens and delivering a comprehensive suite of online financial services on a robust Xamarin architecture.

• Developed key features including account transfers, perks, CUI notifications, and ATM/cash-deposit locators
• Integrated card activation, fund management, and account customization functionality
• Used Xamarin.Forms, MVVMCross, Google Maps SDK, REST APIs, and Xamarin.Essentials to optimize architecture and performance
• Ensured best practices in UI/UX and development patterns across the project

Jadin Tech, Remote  |  Mar 2013 – Dec 2014

Xamarin Developer

• Developed B4UFly and JBSA Work Order Tracker, Xamarin.Forms apps for drone situational awareness and military-base work-order tracking
• Led a major iOS update to B4UFly, optimizing airport-location features and reducing development time by 30% to meet tight deadlines
• Built the JBSA Work Order Tracker for efficiency and scalability toward future white-label applications

Developer Community

Speaking & Leadership

• Led the South Florida .NET MAUI / Mobile Developers Group (formerly the Xamarin group) for 5 years, hosting monthly meetings at the Microsoft office in Ft. Lauderdale
• Presented on Xamarin.Forms and .NET MAUI at CodeCamp 2024 and South Florida DevCon 2022

Mentoring

• Safe4Dogs (.NET MAUI): an open-source app that determines whether foods are safe for dogs, built to double as a teaching codebase for mentoring developers in core .NET MAUI development. Demonstrates MVVM, XAML, data binding, effects, behaviors, dependency injection, SQLite, handlers, Shell navigation, value converters, and localization
• Impact: helped numerous developers get up to speed on the core concepts underlying .NET MAUI application development

Community Projects

• Eventarin: a tool for CodeCamp attendees to find speakers and schedule events, built to teach cross-platform development to the user group
• NonProfitWays: connects software developers with nonprofits to build free websites, giving developers real-world experience and a portfolio
• Community Credit: a rewards site where developers earn points for community contributions such as forum participation and conference speaking

Education

Florida International University, Miami, FL  |  B.S., Computer Science

Broward Community College, Miami, FL  |  Associate of Arts