Senior Frontend / Full-Stack Engineer

Hi, I'm Pierre Besson

10+ years building enterprise-scale web platforms at Microsoft, Walmart, and T-Mobile. Specializing in React, TypeScript, and AI-integrated workflows. I also help small businesses grow through modern web design and digital strategy.

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Career

Experience

Microsoft

Senior Front End Engineer

Purview — Data Governance & Compliance

Feb 2025 – Nov 2025
  • Led frontend development for enterprise-scale React + TypeScript applications within Microsoft Purview
  • Contributed to Copilot-enabled experiences, integrating AI-assisted workflows into production UI
  • Drove modernization from legacy systems to Redux Toolkit and internal platform frameworks
  • Built reusable component libraries and schema-driven config forms used across data policy pipelines
ReactTypeScriptRedux ToolkitCopilot AI

State of Utah — DHHS

React UI Developer

Department of Health & Human Services

Jun 2023 – Jan 2025
  • Led frontend development of a Next.js application serving a statewide audience in a regulated environment
  • Developed Python-based automations and conversational tools to streamline internal workflows
  • Engineered a custom integration layer to embed the React app within WordPress
ReactNext.jsPythonWordPress

Walmart

React UI Developer

Consumer-Facing Platform

Jan 2022 – May 2023
  • Built and enhanced high-performance React applications at massive scale
  • Worked with TypeScript, Redux Toolkit, and Material UI for complex UI workflows
  • Partnered with backend teams using Java, Azure, and MySQL to define API contracts
ReactTypeScriptRedux ToolkitMaterial UI

Microsoft

Software Design Engineer III

Azure Global

Mar 2021 – Jan 2022
  • Developed add-ins for Outlook, Teams, and browsers extending Azure Services into Office
  • Implemented multiple JavaScript auth strategies including 'On behalf of' flow with Microsoft Graph
JavaScriptAzureMicrosoft GraphOffice Add-ins

Streamline Digital

Lead Full Stack Developer

T-Mobile Projects

Nov 2018 – Feb 2021
  • Led frontend and full-stack development for multiple enterprise and consumer-facing apps
  • Built and maintained backend services and APIs using Node.js, Python, and Go
  • Leveraged AWS services including S3 and CloudFront for performance optimization
ReactNode.jsPythonGoAWS
Education: B.S. Electronic Engineering & Computer Science — Technical College Institute of NY

Work

Projects

Claudeen

AI-Powered SaaS Platform

Full-stack platform with a real-time data ingestion pipeline normalizing 6+ heterogeneous sources, an AI scoring engine processing items at <$0.01/unit, and a drag-and-drop CRM with optimistic updates and server persistence.

Next.js 16React 19PrismaNeon PostgresClaude AIshadcn/ui

BidCraft

Multi-Tenant Business SaaS

Production SaaS with Stripe-powered multi-tier subscriptions, role-based access control, real-time document generation, and a client management dashboard. Serving live users.

Next.jsClerkSupabaseStripeTailwind CSS

CareerLift

AI Content Analysis Tool

AI-driven analysis platform that processes unstructured profile data through Claude, generates structured improvement recommendations, and presents actionable insights via a responsive dashboard.

Next.jsTypeScriptAnthropic SDKTailwind CSS

Wall Printing Studios

Small Business Web Redesign

Redesigned and rebuilt a small business website to improve conversion, modernize the brand presence, and drive customer growth. Ongoing partnership helping the business scale through better digital strategy.

WordPressPHPCSSSEOWeb Design

DailyDrop Media

Automated Content Pipeline

End-to-end automated media pipeline with AI narration, programmatic video composition via FFmpeg, and social platform API integration for scheduled publishing.

PythonFFmpegOpenAISocial APIs

Toolkit

Skills

Frontend

ReactNext.jsTypeScriptJavaScriptRedux ToolkitReact QueryTailwind CSSMaterial UIshadcn/uiAccessibility / WCAG

Backend

Node.jsExpressPythonGoPHPREST APIsGraphQLPrisma

Infrastructure

AWS (S3, CloudFront)AzurePostgreSQLMongoDBMySQLDockerCI/CDGit

AI & ML

Anthropic Claude SDKAI-Assisted WorkflowsCopilot IntegrationsPrompt Engineering

Available for hire

Let's Build Something Together

I'm open to full-time roles, contract work, and freelance projects. If you need a senior engineer who ships fast and writes clean code, let's talk.

Get In Touch
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