APIs & microservices
REST APIs and service boundaries designed so teams can work in parallel and deploy independently. Clean Architecture and CQRS where they earn their keep — not as decoration.
Hire a senior .NET developer who has shipped systems banks rely on.
I'm Hassan Houry. For over a decade I've built production .NET systems — real-time stock trading, wealth management, ERP accounting and high-throughput ETL pipelines — in C#, .NET Core, microservices and CQRS. Not tutorials. Systems people move money through.
01 What I build
Backends that stay up when the load arrives.
The .NET work businesses actually need — not framework tourism. Each of these is something I have shipped and then maintained in production.
Real-time & financial systems
Live market data, trading flows and portfolio calculations where correctness is not negotiable and latency is visible to the user. Built and run for fintech clients.
ETL & background processing
Data pipelines, queue-driven workers and scheduled jobs that move large volumes reliably, retry sensibly, and tell you when something breaks instead of failing silently.
ERP & business platforms
Accounting, inventory, insurance and admin systems — the unglamorous software a company runs on daily, where an edge case is somebody's payroll.
Legacy rescue & migration
Inherited an ASP.NET or WPF system nobody wants to touch? I take those over, make them safe to change, and modernise incrementally instead of betting the business on a rewrite.
Data layer & performance
Schema design, query tuning and the N+1 hunts that turn an eight-second report into a fast one. PostgreSQL and SQL Server, with the profiling to prove the difference.
A backend is only half a product. I can build the other half too.
React, Angular and TypeScript on the frontend, Flutter and React Native for mobile, plus hosting and CI/CD. Hire one senior engineer instead of assembling a team around a backend contractor.
API
Web app
Mobile
Deploy
Monitor
02 Proof
.NET systems I built and still stand behind.
Every one of these went to production and carried real business traffic.
01
Fintech · IDS FintechStocks Trading System
02
Fintech · IDS FintechWealth & Investment Platform
03
Data Engineering · AIAECETL & Data Workflow Engine
04
ERP · IDSERP Accounting Solution
05
Retail / E-commerce · Branding Tech KSARetail Commerce & Admin Suite
03 Working together
Three ways to engage me.
I'll tell you which one fits your project — including when the answer is that you don't need me yet.
Option A — Project
Fixed scope, fixed price
A defined deliverable: an API, a migration, a module, an integration. You know the cost before we start. Best when the requirements are already clear.
Option B — Retainer
Ongoing product work
Monthly capacity for continuing development, features and maintenance. Best when the product is alive and the roadmap keeps moving.
Option C — Advisory
Architecture & review
A senior second opinion: architecture review, code audit, hiring support or a plan for a system that has become hard to change. Short, focused engagements.
04 Questions
What clients ask before hiring.
Anything not covered here — just ask. I reply personally, usually within a day.
Over 10 years, continuously since 2015 — from ASP.NET and WPF desktop accounting software through to modern .NET Core microservices. I currently lead backend and ETL development, set architecture standards and mentor other developers.
Yes. A large part of my work is joining systems already in production — reading the code, finding what actually hurts, and improving it incrementally without a risky rewrite. I have taken over legacy ASP.NET and WPF systems as well as modern .NET Core services.
Yes. I am full-stack: React, Angular and TypeScript on the frontend, PostgreSQL and SQL Server for data, plus deployment and hosting. You do not need to hire separately for the layers around the .NET backend.
Both. Ongoing retainer or monthly contract for continuing product work; fixed-price for well-defined scopes such as an API, a migration or a specific module. I will tell you which fits your project rather than pushing whichever pays more.
I'm based in Lebanon (GMT+2/+3), which overlaps the full European working day and most of the Gulf and UK. I have worked with teams in Saudi Arabia and remotely worldwide — time zone has never been a blocker.
05 Let's build it
Need a .NET engineer
Need a .NET engineer
who sticks around?
Tell me what you're building or what's currently breaking. The first conversation is free — and you'll leave it with a clearer plan either way.