Security Researcher / Full-Stack Developer / .NET & Next.js
I break smart contracts on Immunefi, Cantina and HackerOne, and I build the production systems too, with .NET, C# and Next.js. Auditing taught me how systems fail; shipping seven live sites taught me what it costs to keep them running.
I audit live smart contracts on Immunefi, Cantina and HackerOne. I work against deployed mainnet bytecode rather than repo snapshots, and I only report what reproduces in a green proof of concept.
Fork-based proofs of concept against live mainnet state.
Module-level harnesses for Cosmos SDK chains.
Solana programs exercised against deployed bytecode.
What published security signals actually certify, and what they quietly exclude. 10+ manuscripts submitted to peer-reviewed venues, several under review at Q1 journals. Every study ships an open replication package.
343 Go repositories · 4,125 advisories
Systematic review of CVSS · EPSS · SSVC · KEV
38-image corpus · 4 detectors
575 attested npm releases
I'm a backend-focused developer with deep expertise in the .NET ecosystem. My work revolves around creating scalable APIs, implementing clean architectures, and building systems that solve real business problems efficiently.
I specialize in ASP.NET Core, Entity Framework Core, and RESTful API design. From authentication systems to e-commerce backends and content management APIs — security, validation, and performance are always my priorities.
Beyond backend, I work with Next.js and React, giving me a full-stack perspective on how frontend apps consume APIs and what they need from backend services.
public class Developer { public string Name => "Emil Hüseynov"; public string Role => "Security Researcher"; public string Breaks => "DeFi smart contracts"; public string Builds => ".NET · C# · Next.js"; public string Focus => "Breaking and building"; }
A carefully selected toolkit for building robust, scalable systems — backend to browser.
Seven real production sites, each with the full backend behind it.
Full-stack web app with complete backend architecture — user management, a content management system, and a responsive frontend interface.
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Educational platform with backend API services — course management, user authentication, and dynamic content delivery to a React frontend.
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Travel booking platform with comprehensive backend services — flight/hotel search, booking management, payment integration, and user accounts.
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An online clothing and footwear shop stocking brands like Wrangler, Lee and Dr. Martens. Browse by brand or category, manage a cart and account, free delivery over 100 ₼.
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A car-import platform: buyers browse vehicles, run an import-cost calculator, and request a car from auctions abroad — then track the order live, in AZ / RU / EN.
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A kindergarten management system. Staff check children in and out with FaceID, keep each child's profile updated, and track fees, debts and income — all behind a staff login.
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A personal-brand site for a nutrition coach: visitors read his method and myth-busting articles, then book a consultation that routes straight to WhatsApp or a call.
Visit websiteReal systems built to solve actual problems — not tutorial projects. See the code on GitHub ↗
QR-based attendance for graduation ceremonies. Students check in by scanning a unique code, with real-time validation and event management.
Interactive 3D library on Matterport — every book in a virtual library space, with a separate web app for managing the catalogue.
Real-time video communication with AI integration. The backend handles WebRTC signaling, session management, and AI-powered features.
Natural-language backend for text analysis, sentiment detection, and language understanding — designed for content analysis pipelines.
Comprehensive JWT-based authentication with roles, permissions, refresh tokens, and granular per-endpoint authorization.
Lightweight custom ORM for .NET. Implements query building, entity mapping, and database operations with minimal overhead.
Real-time streaming over WebSockets — viewer management and live chat, with an architecture built for many concurrent users.
Image-analysis service on Azure Cognitive Services — object detection, image tagging, and content moderation via the Computer Vision API.
Practical experience building systems and sharing knowledge.
Teaching backend development — API design, the Repository and Unit of Work patterns, DTOs, validation strategies, and Clean Architecture principles. Building demo projects and breaking down complex concepts into clear explanations.
Building production-oriented backend systems with a focus on scalability, security, and maintainability. Designing RESTful APIs, working with databases, implementing auth, and following clean-code principles throughout the lifecycle.