Amirhossein Sarfaraz — Back-End .NET Developer. Building data-heavy systems: ERP, payments & AI-powered apps.
Back-End .NET Developer
Back-End .NET Developer
Back-End .NET Developer
Software Developer — IAU CO
Co-Founder — Grand Role Play
Open to
back-end & full-stack
.NET roles
Data-heavy systems
Data-heavy systems
Data-heavy systems
Tehran, Iran
Hybrid & remote
--:--:-- IRST
Summary
I'm Amirhossein Sarfaraz, a Back-End .NET Developer based in Tehran. I build data-heavy systems — the kind where the database design has to be right before anything else. At Islamic Azad University's Central Organization I develop Sajed, the integrated ERP behind the university's administration: loans and facilities, employment status conversion, missions, severance payments and HR services, along with parts of payroll and education. I built Sajed App, a self-service app for staff and faculty, on both the API and the React front end, and SajedDoc, an AI service in production that recognizes uploaded HR documents with computer vision and Persian OCR — 97.7% validation accuracy at about 13 ms per image. Outside my full-time role I work with product teams as a freelance developer. As technical lead of WinUp360, I designed and built the back end and admin panel of a live sports-education platform with three payment gateways and payouts to coaches and clubs. I led back-end development of Hoshyar, an AI-powered workspace for organizations, and built the rewards and engagement API behind Bonyad Salavat's Noor app. I'm also a co-founder of Grand Role Play, where I run the business side, the web-shop back end and the servers. I started out in radio network support, and the habit stuck: find the weak link, measure it, then fix it properly. I work with C#, ASP.NET Core, SQL Server, PostgreSQL, React, TypeScript, Docker and Python — and I'm open to back-end and full-stack .NET roles.
About
Based in Tehran, Iran
Working hybrid & remote
Currently building ERP modules at IAU CO,
co-founding Grand Role Play
and freelancing.
(About)
I build data-heavy systems — the kind where the database design has to be right before anything else.
Since 2023 I've shipped university ERP modules, a live sports platform with online payments, and an AI service now running in production.
I started out in radio network support, and the habit stuck: find the weak link, measure it, then fix it properly.
Back-End .NET Developer
(C# · ASP.NET Core · SQL Server · React)
Experience
2023 — Today
01
Software Developer
Islamic Azad University — Central Organization
Develop Sajed, the integrated ERP that runs the university's administration, with C#, ASP.NET MVC / Web API and SQL Server.
- Loans and facilities, employment status conversion, missions, severance and HR services, plus parts of payroll and education
- Sajed App — self-service app for staff and faculty: token-based API with 56 endpoints and a React front end
- SajedDoc — AI service in production that recognizes HR documents: 97.7% validation accuracy at ~13 ms per image
Dec 2023 — Present
Tehran · Hybrid
02
Freelance Back-End Developer
Self-employed
Back-end and full-stack projects for product teams, alongside my full-time role.
- WinUp360 — technical lead; ASP.NET Core 8, PostgreSQL, 70+ REST endpoints, three payment gateways and payouts
- Hoshyar — led back-end development of an AI-powered workspace on .NET 9 with Clean Architecture
- Noor — rewards and engagement API for Bonyad Salavat's app, with CI/CD on GitHub Actions
May 2025 — Present
Remote
03
Co-Founder & Back-End Developer
Grand Role Play
A GTA V role-play community with its own game server, web shop and in-game economy.
- Run the business side: product direction, monetization and the GoldCoin economy
- Web-shop back end on ASP.NET Core 9, connected to the game economy through Dapper and MySQL
- Manage the production game and web servers
Feb 2026 — Present
Remote
04
Radio Frequency Engineer
Zitel
Radio network support: monitored radio links, troubleshot RF issues and resolved support cases.
Jan 2023 — Oct 2023
Tehran · Hybrid
Selected projects
(7)
Staff and faculty view payslips, employment orders and certificates, manage their profile and message colleagues. I built both sides: a token-based API (OTP login, encrypted identifiers, PDF/QR documents) and the React front end.
56 endpoints
API + front end
ASP.NET Web APISQL ServerJWTReact
Suggests the type of every uploaded HR document using OpenCV rules, a fine-tuned MobileNetV3 model and Persian OCR, and cross-checks national ID numbers. Runs in production on CPU.
97.7% validation accuracy~13 ms per image
AI service
PythonPyTorchOCRONNX RuntimeFastAPI
A live platform where clubs and coaches run classes and players enroll and pay online. Designed and built the back end (three payment gateways, billing cycles, payouts) and the admin panel, and guided the front-end team.
70+ endpoints30+ admin pages
Technical lead · back end + admin
ASP.NET Core 8PostgreSQLReactTypeScriptTailwind
winup360.com ↗An AI-powered workspace for organizations: AI chat and agents, calendars, task boards, forms and document search with OCR.
Back-end lead
.NET 9Clean ArchitectureSQL ServerRabbitMQMeiliSearch
The rewards and engagement API behind Bonyad Salavat's app: token wallets, campaigns, missions, daily rewards and referrals, with SMS-based login and automated deployment.
Back end
ASP.NET CoreRESTGitHub Actions
Web shop for a GTA V role-play server where players buy in-game items with GoldCoin. The back end delivers purchases straight into the game economy, with OTP login against the game database.
Back end + servers
ASP.NET Core 9MySQLDapper
A chat platform on top of large language models with streaming replies, Google and GitHub sign-in, a credit system and an admin panel.
Full stack
ASP.NET CoreSignalRReact
(Contact)
Let's build something data-heavy.
Open to back-end and full-stack .NET roles — feel free to message me.