Frontend Engineering
High-performance interfaces built for data-heavy products.
Senior Full-Stack Developer · .NET & React
Building high-performance interfaces for complex digital products.
I own features end to end — from RESTful APIs and data models in ASP.NET Core through to polished, data-intensive admin panels in React, Next.js, and Vue.
Tehran, Iran · Available for select projects
dashboard / realtime
2.4M
Throughput
42ms
Latency
99.9%
Uptime
Live traffic+40%
Who I Am
I build products that feel senior.
A senior-level frontend foundation on top of production-grade backend capability. I design the API and data model, then build the interface that consumes it — so the seam between them is never where things break.
Backend & APIs
RESTful services in ASP.NET Core, layered with Onion Architecture and Entity Framework Core.
End-to-End Ownership
Features owned from the database and API layer through to a polished, fast UI.
Skills & Expertise
A full-stack toolkit, backend included
From ASP.NET Core services and SQL Server data models to React, Next.js, and real-time interfaces — both sides of the API, in production.
Backend & APIs
ASP.NET CoreC#Entity Framework CoreSQL ServerRESTful API DesignOnion ArchitecturePython
Frontend Frameworks
React.jsNext.jsReact NativeExpoVue (2 & 3)Nuxt.jsAngularElectronJavaScript (ES6+)TypeScriptHTML5CSS3
State & Real-Time
Zustand (Persist)TanStack QueryRedux ToolkitPiniaContext APIWebSocketsSocket.IOWeb Workers
UI, Tools & Testing
Tailwind CSSBootstrapShadcn/UIMUILeafletSigma.jsGraphologyD3.jsReact Hook FormFormikYupGit
Soft Skills
Sharp problem solvingTeam leadershipTechnical coordinationAdaptabilityMeticulous attention to detail
Languages
EnglishPersian
Featured Projects
01 / 04
SEO Lens
Experience
July 2024 — Present
Senior Frontend Developer
Parnian Andish Co
Owning frontend architecture for data-intensive management panels, and contributing to the ASP.NET Core services behind them.
- Optimized a management panel rendering 2,000,000+ continuous data points with Sigma.js and Graphology
- Offloaded heavy computation to Web Workers for a stutter-free 60fps experience during chunk-loading
- Built RESTful APIs, data models, and server-side logic in ASP.NET Core (C#) with Entity Framework Core and SQL Server
- Orchestrated the migration of core products from Vue 2 to Vue 3 using modular composables
- Integrated Pinia and batched redundant API requests — 20% fewer client-side bugs, 40% higher overall system performance
December 2021 — March 2023
Backend Developer (Remote)
Nafasland
Designed and delivered a custom inventory and warehouse management system for an e-commerce supplement store.
- Independently built the inventory system and integrated it with the storefront's management API
- Engineered the solution in ASP.NET Core (C#) following Onion Architecture for clear separation of concerns
- Enforced domain-driven layering for testability and long-term maintainability
- Delivered advanced product filtering and a best-selling-products reporting module
- Optimized the module at both query and code level
October 2021 — December 2022
Frontend Developer & Technical Support
Site Saz Portal
Shipped widgets and platform features across the site-builder, on both sides of the stack.
- Developed backend features and RESTful APIs with ASP.NET Core, Entity Framework Core, and SQL Server
- Built new widgets and platform capabilities end users could add and configure dynamically
- Revamped core modules and interactive widgets with Angular and custom responsive layouts — 30% better client performance
- Established real-time communication over WebSockets, and cut initial load times through Next.js code splitting, dynamic imports, and TanStack Query caching
- Resolved intricate domain-routing issues and standardized site-wide error handling and lazy-loading states
Recommendations
Trusted by product teams and founders
Real recommendations will land here as they come in. The section is built to receive them.
“Hassan turns ambiguous product goals into precise, reliable interfaces. He thinks about the whole system, not just the screen in front of him.”
“One of the few frontend engineers who genuinely understands the data layer. Our APIs and his UI always met cleanly in the middle.”
“He owned the frontend end to end and made calls a founder can trust. The product felt senior from day one.”
“Sharp, calm, and precise. Hassan raised the bar on architecture and performance for the whole team.”
Contact
Let's build something reliable.
Available for senior full-stack, backend, dashboard, and real-time engineering work.