Available for Contract Engagements

Paresh Hirapara

Lead Full-Stack Developer · Enterprise Application Engineer · AI Engineer

Hands-on engineer with 30 years of enterprise software delivery. Expert in .NET, Blazor, MAUI, and Azure, building secure, scalable applications across web, mobile, cloud, and device platforms — with recent focus on production LLM integrations, including a governed conversational analytics assistant that turns natural-language questions into safe, explainable data queries. Based in West Palm Beach, FL, working remotely nationwide.

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30+
Years Experience
6+
Major Enterprise Clients
.NET
Core Expertise
AI/LLM
Applied Engineering

About Me

I bring deep technical execution alongside strong leadership. I lead architecture, mentor teams, and stay hands-on with code.

What I Do

I design and build enterprise-grade full-stack applications, from greenfield product development to modernizing legacy systems.

How I Work

Contract-based engagements, fully remote. I integrate with teams as a senior technical partner with clear communication and delivery focus.

Core Technical Skills

Depth across the full stack, from device firmware to cloud architecture.

Artificial Intelligence & LLM Engineering

Claude (API & Claude Code), ChatGPT/Codex, GitHub Copilot, Cursor, M365 Copilot. Production LLM integration: natural-language-to-query semantic layer, governed read-only query generation, explainability & lineage, data-quality validation, AI-assisted development workflows

Web Development

C#, ASP.NET Core, Blazor, MVC/Razor, Angular, React, TypeScript, Tailwind, Bootstrap, Telerik/Kendo UI

Mobile Development

.NET MAUI, Xamarin, iOS, Android, offline sync, barcode scanning, rugged devices, mobile CI/CD

Desktop and Device

WPF, Avalonia, Uno Platform, UWP, Windows IoT Core, Linux, MVVM, SQLite

Back-End and Integrations

ASP.NET Core Web API, REST, SOAP, RabbitMQ, Kafka, Azure IoT Hub, Azure Service Bus, Twilio, Firebase, AWS SQS

Databases

SQL Server, PostgreSQL, Oracle, Snowflake, DB2, MySQL, Redis

Cloud and DevOps

Azure App Services, Azure Functions, API Gateway, Key Vault, WAF, AWS, GCP, Azure DevOps, GitHub Actions

Professional Experience

30+ years of continuous enterprise delivery across industries.

Confidential - Provided Upon Request

Full-Stack Lead Developer & AI Engineer (Contract), Jul 2020 - Present

  • Built a governed, LLM-powered conversational analytics assistant: natural-language questions resolve through a curated semantic layer into safe, read-only queries against Snowflake, returning explainable, lineage-backed answers with confidence scoring and role-aware responses.
  • Built and enhanced customer-facing apps using Blazor and React, modernizing legacy Angular systems.
  • Migrated mobile apps from Xamarin to .NET MAUI with custom charts, Telerik, and Blazor modules.
  • Developed ASP.NET Core APIs integrating Oracle, PostgreSQL, Snowflake, and legacy SOAP services.
  • Designed Azure architectures and CI/CD pipelines for multi-environment deployments.

TherapeuticsMD

Full-Stack Lead Developer (Contract), Mar 2018 - Jun 2020

  • Led development of a secure patient self-service portal.
  • Built Angular + ASP.NET Core apps with Telerik Kendo UI and custom workflows.
  • Integrated First Data, Paymentus, and Stripe payment systems.

Johnson Controls

Full-Stack Lead Developer (Contract), Jul 2016 - Mar 2018

  • Built next-gen smart thermostat platform using C# UWP on Windows IoT Core.
  • Architected shared components across UWP, Xamarin mobile, and ASP.NET MVC web applications.
  • Developed Azure backend with IoT Hub, Web API, and SignalR.

UPS Ground Freight

Full-Stack Lead Developer (Contract), Mar 2012 - Jul 2015

  • Built operational efficiency suite across mobile, desktop, and web.
  • Developed rugged mobile apps for forklift workers with barcode scanning, offline mode, and push notifications.

CSX Transportation and Early Career

Full-Stack Developer, 1996 - 2012

  • Built transportation, logistics, billing, dispatch, reservation, and B2B integration systems.
  • Integrated Java, J2EE, WebLogic, JMS, SOAP, XML, Oracle, DB2, WebSphere, and CICS platforms.

Industries Served

Domain knowledge that makes the difference between a developer and a partner.

Healthcare / Pharma

Patient portals, pharmacy-as-a-service, secure billing

Industrial IoT

Smart devices, IoT Hub, real-time control systems

Logistics and Transportation

Freight ops, dispatch, rugged mobile, mainframe migration

Financial Services

B2B integrations, billing systems, payment processing

Enterprise SaaS

Multi-tenant platforms, ERP integrations, Azure architecture

AI / LLM-Augmented Analytics

Governed conversational analytics, semantic-layer NL-to-SQL, AI-assisted development workflows

Get in Touch

Available for contract engagements. Let's talk about your project.

I take on select engagements where I can make a meaningful impact: modernizations, greenfield builds, or stepping in as a technical lead on a complex initiative.

Location: West Palm Beach, FL - Remote

Email: hello@paresh.me

Phone: 561-332-5950

LinkedIn: linkedin.com/in/paresh-hirapara

Resume: PDF | Word