Open to new opportunities

Hi, I'm Deniz Software Engineer

Full-stack engineer with five years shipping production web apps — plus hands-on security, networking, and systems work, and freelance IT support for personal clients since 2018.

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about-me.ts
// deniz-memduev.ts export const deniz = {   title: "Full Stack Engineer",   focus: "Full-stack, security & systems",   experience: "5 years",   stack: [     "TypeScript", "React",     "Next.js", "NestJS",     "PostgreSQL", "Docker",     ".NET", "C#"   ] }

about

About me

Full-stack engineer with five years building and shipping production web applications end-to-end — owning features from the interface through the API to the data underneath. Most of that time has been at Ever Technologies, building a learner-enrollment platform for a UK training provider, a cross-tenant admin portal for a logistics platform, and a screenshot-annotation tool with a real-time canvas.

TypeScript is my core. I've also worked with C# and .NET on the backend, though not as deep as the TypeScript/Node side. Most of my production experience is with monolith architectures, and I'm also familiar with microservices. I work in Agile teams with direct client contact, taking features from requirements through to production.

Outside client work, I have a genuine, self-driven focus on security, networking, and systems — hands-on with reconnaissance, vulnerability assessment, and Linux, sharpened by building my own small security tools. I've also been a freelance IT technician since 2018, installing and maintaining CCTV/NVR systems, PC builds and repairs, home networks, and IoT devices for a base of personal clients.

Native in Bulgarian and Turkish, conversational English. Currently looking for a new role to grow in — in software engineering, systems administration, or cyber security — while keeping a healthy work–life balance.

5+
Years Experience
0
Products Shipped
3
Languages Spoken
OSS
Contributor

skills

Skills

Technologies I work with day to day.

Frontend

React Next.js Angular Redux TanStack Query MUI Tailwind CSS SCSS KonvaJS

Backend

Node.js NestJS Express.js .NET REST APIs JWT WebSocket / SignalR

Data

PostgreSQL TypeORM MySQL Redis

Platform & Tooling

Docker Docker Compose Linux macOS Windows Git / GitHub Electron Chrome Extensions

Languages

TypeScript JavaScript C# SQL Bash

AI & LLMs

Claude / Anthropic API Ollama (local LLMs) Tool-calling agents Prompt design AI-assisted dev

Security

Reconnaissance Vulnerability Assessment Port Scanning Service Fingerprinting nmap Metasploit (fund.) OSINT Reporting

Systems & Networking

Linux Kali Linux Active Directory VirtualBox TCP/IP Subnetting Router / Switch Config DNS / DHCP / TLS

CCTV, Networks & IoT

IP / Analog Cameras NVR / DVR Config Remote Access (P2P/DDNS) Routers / Switches Wi-Fi Setup Cabling PC Build & Repair IoT Device Integration

projects

Projects

Production software I've built — professionally and on my own.

Best LMS — Strive Training

Learning-management & learner-enrollment platform for a UK vocational training provider, built over ~3 years. Built features across the React front end and the NestJS API, with relational data modelled in TypeORM.

React TypeScript MUI NestJS TypeORM PostgreSQL Private
Rush Hour

Logistics & dispatch platform. I built the cross-tenant admin portal for managing tenants across the platform. The wider platform (.NET 8 / EF Core / MySQL backend, Angular ops portal, React Native driver app) was built by the rest of the team, not by me.

Next.js 16 React 19 TanStack Private
ScreenMood

Screenshot-annotation product pairing a Chrome browser extension with a companion web portal, sharing a TypeScript codebase across both — including a real-time canvas and whiteboard built over WebSockets.

TypeScript React Next.js NestJS Firebase Private
Ever Teams

Open-source work and project management platform. Contributed as a team member at Ever Technologies, building features across the full stack.

TypeScript Open Source
Subnet Visualizer

Personal project — an animated IPv4 subnet calculator. Visualizes network/host bit splits, address ranges, host maps, and subnet splits as an interactive network topology.

Next.js React TypeScript Tailwind CSS Open Source
LANsight

Personal project — a desktop network scanner for Linux, Windows, and macOS. Finds devices on your network, scans their ports, identifies what's running, and flags security problems, with no nmap or native modules required.

Electron TypeScript Node.js Open Source

experience

Experience

My professional journey so far.

2018 — Present Ongoing
Freelance IT Technician
Personal Clients
  • Independent IT support for a base of personal clients — homes and small businesses — alongside my software engineering work
  • CCTV/NVR installation and configuration — IP and analog cameras, remote access (P2P/DDNS), working across whatever hardware a client already has
  • Home and small-business networking — routers, switches, Wi-Fi coverage, cabling, basic subnetting
  • PC builds, repairs and OS installs, malware removal, backups and recovery
  • IoT device integration — smart-home cameras, sensors, hubs
2022 — 2026
Full-Stack Software Engineer
Ever Technologies LTD — Remote
  • Delivered production features across several client platforms — front-to-back ownership including REST APIs, JWT auth, and relational data modelling
  • Best LMS (Strive Training), ~3 years — React front end and NestJS API for a UK vocational training provider
  • Rush Hour — built the cross-tenant admin portal for a logistics & dispatch platform
  • ScreenMood, ~1 year — Chrome extension + web portal with a real-time canvas and whiteboard
  • Worked in Agile teams with direct client contact — requirements, demos, feedback
2021
Web Developer
Scava Soft LTD — Varna
  • First professional web-development role — built and maintained web frontends
  • Gained hands-on experience with React, Angular, Express.js, and Firebase

education

Education

September 2017 — June 2021
Bachelor's in Computer Science
University of Economics — Varna

Software development, algorithms, database management. Languages: C, C++, C#, Java, JavaScript. Coursework in cryptography, databases, and computer networks.

September 2013 — May 2017
High School Diploma
SOU Sv. Sv. Kiril i Metodiy — Samuil

contact

Get in touch

Feel free to reach out if you'd like to work together.

Email
denizmemduev.dev@gmail.com
Phone
+359 899 350 531
GitHub
dendycodes
LinkedIn
Deniz Memduev
Upwork
Hire me on Upwork
Location
Varna, Bulgaria — relocating to Sofia

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