Mobile Engineering & iOS
React Native, Expo, Swift, iOS development, TypeScript, JavaScript, Xcode, App Store Connect, TestFlight, push notifications, offline-first applications, OTA updates, and cross-platform mobile architecture.
Christopher Vaught
Senior Full-Stack Product Engineer & Technical Lead
Web, mobile, cloud-native, and AI-powered product engineering
I design, architect, and deliver modern software platforms across healthcare, transportation, government, and consumer-facing industries, with 15+ years of experience turning complex requirements into secure, scalable, user-centered products.
My core stack spans React, TypeScript, Node.js, Python, and C#/.NET, backed by front-end architecture, UI/UX, accessibility, mobile application development, distributed APIs, and cloud-native delivery.
Recent work includes enterprise AI platforms using Retrieval-Augmented Generation, semantic search, vector databases, ingestion pipelines, LLM integrations, observability, governance, and auditability controls.
RedefineIt is where that professional work intersects with interactive design, generative art, sound, and software experiments that keep the craft visible.
Core Expertise
Mobile CI/CD & Release
GitHub Actions, mobile CI/CD, Xcode build automation, App Store deployment, TestFlight distribution, code signing, certificate management, provisioning profiles, release validation, and deployment automation.
AWS Cloud Architecture
AWS Lambda, API Gateway, EC2, S3, IAM, CloudFormation, CloudWatch, serverless applications, event-driven architecture, REST APIs, microservices, and cloud-native development.
Mobile Testing & Quality
Jest, React Native Testing Library, automated mobile testing, QA collaboration, acceptance criteria, release validation, quality gates, deployment readiness, and production support.
AI Engineering
Retrieval-Augmented Generation, OpenAI APIs, Claude, semantic search, vector databases, PGVector, LLM integration, AI-assisted development, prompt engineering, enterprise knowledge platforms, and AI governance.
Product Leadership
Technical leadership, product engineering, stakeholder management, Agile delivery, team mentoring, architecture reviews, engineering standards, technical roadmaps, UX collaboration, and distributed team leadership.
Microsoft Development Stack
C#, ASP.NET Core, ASP.NET MVC, ASP.NET Web Forms, .NET Framework 3.5-8, Blazor, Razor Pages, Entity Framework, Dapper, LINQ, SignalR, Web APIs, Windows Services, dependency injection, MVC, MVVM, VB.NET, and VBScript.
Database & Data Engineering
SQL Server, T-SQL, stored procedures, views, query optimization, ADO.NET, Entity Framework, Dapper ORM, SSIS, ETL development, database design, PostgreSQL, MySQL, data integration, and reporting solutions.
Enterprise Front-End Engineering
JavaScript, jQuery, TypeScript, HTML5, CSS3, Bootstrap, React, React Native, Angular, responsive design, WCAG accessibility, Material UI, and component-based architecture.
Enterprise Integration & Platforms
REST APIs, SOAP services, Azure API Management, Azure Functions, Logic Apps, SharePoint, Umbraco CMS, Sitecore CMS, SAP Gigya, Epic/FHIR, HL7, JSON, XML, and enterprise service integration.
Azure & Enterprise DevOps
Microsoft Azure, Azure App Services, Azure Storage, Azure DevOps, Docker, CI/CD automation, Team Foundation Server, TeamCity, Octopus Deploy, MSBuild, AWS, Google Cloud Platform, and release automation.
