Kathan N. Patel
AI & .NET Developer | Blazor · WPF · ASP.NET Core
I build production-grade applications with AI built in — Blazor, WPF and ASP.NET Core for teams in legal tech, healthcare, and enterprise | available to start immediately.
Building reliable software for real businesses
I'm a freelance .NET Technical Lead with 8+ years of experience building production-grade web and desktop applications across fintech, legal tech, healthcare, and e-commerce. I specialise in Blazor, ASP.NET Core, and WPF — turning complex business requirements into clean, scalable software, and running an AI-assisted build process that compresses delivery without putting unreviewed code into production. Remote-friendly, deadline-driven, and available for contract work right now.
Tech Stack
Technical Leadership
Lead sprints, align client goals, and drive cross-functional teams to deliver on time.
Architecture & Design
Translate complex business requirements into scalable, maintainable system architectures.
Full Stack Expertise
End-to-end proficiency from WPF desktop apps to Blazor web platforms and RESTful APIs.
Mentorship
Guide junior developers in best practices, code quality, and technical problem-solving.
Ask my AI. It knows my work.
This isn't a scripted chatbot — it's a real AI assistant wired to a live model, primed with my actual experience, skills, and projects. Ask about what I've built, my stack, or availability and get a straight answer. It's also a working sample of the kind of AI feature I can drop into your Blazor or ASP.NET Core app.
Kathan's AI Assistant
Online · knows my full portfolio
Ask me anything about Kathan
His work, stack, availability — or how he'd add AI to your app.
Live AI · rate-limited · your messages aren't stored
Technical Arsenal
8+ years shipping production software — desktop, web, and AI-enabled systems, across .NET and the modern JavaScript stack.
C#
.NET 9
Blazor
React
Next.js
TypeScript
Gemini
Anthropic
PostgreSQL
Docker
Azure
Git
Programming Languages
C#
JavaScript
jQueryTypeScriptFrameworks
ASP.NET CoreBlazor Server
WPF.NET Core 6/9Databases
MS-SQL
MySQLFrontend
HTML/CSSXAMLReact.jsRazor PagesTools & Libraries
GitHubSourceTreeLINQTelerikSciChartSyncfusionLEAD ToolsDevExpressHangfireABP.ioArchitecture & system design
Turning ambiguous requirements into a structure that still makes sense in year three.
AI integration
Gemini, Azure OpenAI and Semantic Kernel wired into production apps — rate limits, fallbacks and cost control included.
Legacy modernisation
Incremental migration off ageing stacks, one slice at a time, without a big-bang rewrite.
Platform integration
OAuth 2.0, scheduled sync and idempotent writes between systems that were never designed to talk.
Technical leadership
Leading sprints, reviewing code, and mentoring whoever inherits the codebase.
Not sure which of these your project needs? Describe it and I'll tell you.
AI accelerates the build. It never skips the review.
Claude Code runs alongside my .NET and full-stack work every day — scaffolding modules, refactoring legacy WPF and ASP.NET Core code, and generating unit tests against existing business logic. The speed is the easy part. This is the process that keeps it safe to ship.
Plan before prompting
Planning-only sessions settle scope, architecture, folder structure, and independently testable milestones before a line of code is written — so every implementation prompt reads as a specification, not an open request.
You approve the plan before the build starts.
Context that outlives the session
In-repo context files pin stack versions, naming conventions, build commands, and explicit constraints, keeping output consistent across sessions and modules.
The codebase stays coherent instead of drifting module to module.
Applied to real codebases
Claude Code in CLI and IDE, used across production .NET and full-stack work — scaffolding modules, refactoring legacy WPF and ASP.NET Core code, and writing tests against business logic I did not originally author.
Proven on inherited, messy, real-world code — not greenfield demos.
Review-first discipline
Every suggestion is treated as a first draft. It is read, tested, and validated against the project's coding standards and security requirements before it merges.
Nothing ships because a model sounded confident.
Written for the people paying
Client discussions become structured requirement documents, technical specifications, and progress updates written for non-technical stakeholders.
You always know what is being built, and what is already done.
Proof
Measured on Craftura, a full e-commerce platform
against a 21–26 day conventional estimate
storefront, admin dashboard, and CMS
across 9 data models
The same review pass caught Edge Runtime, caching, and data-accuracy defects that unreviewed generated code would have shipped. That is the half of the workflow that actually earns the speed.
Career Journey
Technical Lead
Digip Technologies
- Lead client discussions to gather requirements and align project goals before each sprint.
- Plan and prioritize tasks with clients, ensuring high-priority deliverables are met within timelines.
- Coordinate cross-functional efforts to achieve targets efficiently and maintain clear communication throughout the process.
Senior Engineer (SE-1)
Parkar Digital
- Designed and built secure, high-performance applications using .NET technologies to meet client needs.
- Worked closely with stakeholders in daily stand-ups to refine requirements and deliver tailored solutions.
- Developed user-friendly interfaces and integrated APIs for seamless data access.
- Ensured timely delivery of features and bug fixes while upholding coding standards.
- Guided junior developers to enhance team problem-solving and technical expertise.
Senior Software Developer
Digip Technologies
- Conducted code reviews to ensure adherence to best practices and coding standards.
- Debugged and resolved software defects efficiently to maintain product quality.
- Designed reusable LINQ expression libraries for optimized data filtering in grid views.
- Developed a script-based trading system enabling users to customize trading scripts.
- Built responsive user interfaces using XAML in WPF and implemented business logic in C# for WPF and ASP.NET Core projects.
- Collaborated with frontend and backend teams to integrate UI with underlying systems.
- Created RESTful APIs using ASP.NET Core to enable efficient data exchange between applications.
Key Work
Production applications across legal tech, fintech, healthcare, and e-commerce — with measurable outcomes for each client, and an honest note on where AI helped and where it deliberately did not.
North City Law
Legal Practice Automation Platform
Automated background jobs using Hangfire on Blazor Server + .NET 9 to securely transfer contacts, call recordings, transcripts, and related data between the Clio, Lawmatics, Box, and Zoom platforms.
- Single-click OAuth 2.0 token generation and management for Clio and Zoom
- Scheduled periodic workflows for hands-free data synchronization
- Real-time consistency across legal practice management tools
How AI was used hereshow
Used Claude to compress research across the Clio, Lawmatics, and Zoom API surfaces — comparing authentication models, rate limits, and payload structures before committing to an integration design — and to draft job scaffolding and retry logic. Token handling and cross-platform data-mapping rules were reviewed and hardened manually before release.
Guard Resource One
Multi-Tenant Security Management SaaS
Developing a tenant-based web application using Blazor Server, ABP.io framework, and Syncfusion libraries for security guard management.
- Multi-tenant organization and company management
- Company-specific guard creation with detailed profiles
- Subscription-based access control for scalable SaaS model
How AI was used hereshow
Used Claude to work through ABP.io framework conventions and multi-tenancy patterns at speed, generating consistent module, entity, and permission scaffolding across the codebase. Tenant-isolation and subscription-gating logic was verified manually rather than trusted to generated output.
King & Shaxson
High-Performance Desktop Trading Platform
Designed a desktop trading application using WPF and DevExpress libraries, optimized for high-performance UI with large datasets.
- Real-time trading on instruments at current market prices
- Live match, auction, and matrix trading sessions
- Custom kernel integration for reliable trade execution
How AI was used hereshow
Used Claude to prototype DevExpress grid and charting configurations and to evaluate UI virtualisation and threading approaches for large real-time datasets. Trade-execution and market-data logic was written and validated manually, given the correctness requirements of live trading.
Brook Furniture Rental
E-Commerce Rental Platform
Built a full-featured e-commerce platform for furniture rental using .NET Framework 4.6, React.js, C#, and MS-SQL.
- Lease creation and management workflows
- Secure online payment processing integration
- Product browsing, cart, and purchasing capabilities
Finsys
Stock Market Analytics Platform
Finance-domain project for stock market trend analysis and predictive insights, with both desktop (WPF) and web (Blazor) interfaces.
- Real-time data visualization using SciChart
- Predictive analytics and trend forecasting
- Cross-platform desktop and web compatibility
Triage
Healthcare Records Management
Healthcare product managing patient health records and medication data using WPF, C#, and specialized medical imaging libraries.
- Secure storage and retrieval of patient records
- Medication tracking and management system
- Medical imaging with LEAD Tools integration
What I ship on my own
These aren't client deliverables — they're products I scoped, designed, and shipped solo, moving fast with an AI-accelerated workflow. A few (like this site's live AI assistant) put AI directly in the product. It's the clearest look at how I work when I own every decision — from architecture to the last commit.
Craftura Fine Furniture
AI-Assisted Full-Stack E-Commerce Platform
A complete furniture manufacturing and ordering platform on Next.js 14, Prisma and TypeScript — 17+ pages, 20+ API routes and 9 data models — spanning a customer storefront, an admin dashboard with custom SVG analytics, and a CMS for site content. Built on SQLite against a PostgreSQL-ready schema.
- Storefront with product search and filtering, an inquiry cart handling both standard and bulk B2B orders, order tracking with self-cancellation, and WhatsApp handoff on key customer actions
- Admin dashboard with revenue-trend, B2B/B2C split and manufacturing-cost reports, CSV and Excel export, full CRUD, and a content CMS
- JWT authentication with Edge-compatible middleware, email notifications, and SEO through dynamic sitemap, JSON-LD structured data, and per-page metadata
NOCpilot
Multi-Tenant Fire-Safety Compliance SaaS
An India-first compliance platform that stores fire-safety documents, derives each premise's legal obligations from state rules, and reminds owners before every renewal deadline — architected end-to-end as a multi-tenant .NET backend.
- JWT identity with rotating refresh tokens, automatic per-tenant row isolation, and per-tenant envelope encryption
- A “rules as data” obligation engine plus an encrypted document vault with inspection-ready exports
- Reminder scheduler with WhatsApp → SMS → email fallback, Razorpay billing, and a partner + super-admin console
This Portfolio + AI Assistant
Next.js Site with a Live AI Demo
The site you're on: a Next.js 15 app with a live AI assistant and an AI project-cost estimator — a working example of AI features running in production, not a mockup.
- Streaming AI chat and an AI cost estimator wired to real API routes with rate limiting
- Server-rendered and SEO-tuned, with dark/light theming and a fully responsive layout
- Live GitHub showcase and a Supabase-backed blog, all in one codebase
Cohort Analysis Chart
Interactive Trading-Style Matrix Grid
A high-interactivity cohort/retention matrix built in WPF (.NET 8) — a customizable grid with full keyboard navigation and a detailed popup view, styled for trading and analytics dashboards.
- 13×14 interactive matrix with arrow-key navigation and row/column highlighting
- Double-click / Enter popup with a buy-sell order simulation view
- Clean MVVM architecture with live-updating cells
Live Internet Meter
Real-Time Speed & Ping Monitor
A single self-contained HTML file that measures ping, download, and upload speed live in the browser — with gauges, sparklines, a rolling history chart, and automatic nearest-server selection. No installs, no backend.
- Live gauges and a rolling history chart, fully client-side
- Automatic nearest-server selection
- One file, zero build step
Excel Dynamic Viewer
Schema-Agnostic Excel & CSV Viewer
A WPF (.NET 9) desktop app that dynamically reads and displays .xls, .xlsx, and .csv files of any column structure — using free, open-source libraries with no licensing fees.
- Auto-detects columns and data types from any spreadsheet
- Reads .xls, .xlsx, and .csv via ExcelDataReader
- Modern MVVM UI with a clean data grid
Academic Background
Bachelor Degree of Computer Science
Silver Oak College of Engineering & Technology
Need an AI Expert Developer?
Available for freelance and contract work — AI integration, web and desktop applications, and legacy modernisation. Bring me the problem, not the tech stack.