# Heorhii Priadkin

> Middle fullstack developer with 2+ years of commercial experience building production SaaS platforms, CRM/ERP systems, and AI-powered business automation. Strong in backend architecture (PHP/Laravel, Node.js, Python) combined with modern frontend (React, Next.js, React Native). Daily driver of AI coding agents (Claude Code, OpenAI Codex, Cursor, GitHub Copilot).

## Contact

- Website: https://priadk.in
- Email: heorhii@priadk.in
- GitHub: https://github.com/glad1olus86
- LinkedIn: https://www.linkedin.com/in/heorhii-priadkin-3a3b94380/
- Telegram: https://t.me/mjadapter
- Location: Kolomyia, Ukraine (remote-first)
- Languages: Ukrainian (native), Russian (native), English (B1+)

## Resume

- English: https://priadk.in/resume/resume-en.docx
- Russian: https://priadk.in/resume/resume-ru.docx

## Work experience

### Fullstack / Software Developer — LamaPixel (Aspector) · Nov 2025 – present

- **Jobsi** — multi-tenant SaaS ERP/CRM for staffing agencies. Designed and shipped 18+ business modules (HRM, CRM with Kanban, Finance with double-entry accounting, hierarchical Cashbox, Projects with time tracking, Fleet Management with GPS, Recruitment, POS, Document Generator). Integrated 30+ payment gateways (Stripe, PayPal, Razorpay, Mollie, YooKassa, Flutterwave, etc.), Google Gemini OCR, Twilio, Zoom, Google Calendar. Built a dedicated mobile UI layer, RBAC with subscription-based feature gating, token economy for AI-scan billing. Localized to 5 languages.
- **Infinity SPA Ecosystem** — production system for a Czech massage salon: 3-role CRM (Admin/Operator/Masseuse) + WordPress booking website synced via REST API. End-to-end SMS verification via Odorik API, state-machine order flow, operator shift conflict resolution, Telegram notifications.
- **LamaHosting + LamaMail** — branded hosting control panel and mail service on dedicated infrastructure. Custom hosting backend, live KPI graphs, per-domain rate limiting, two-tier resource isolation, PageSpeed integration, Telegram notifications, DNS zone restore, WordPress quick-install. Stack: Next.js 16, React 19, Prisma, MariaDB, Node.js 22.

### Freelance Developer · Feb 2025 – Nov 2025

Delivered 11+ cross-platform projects across Android, Windows desktop, Minecraft Java servers, and web.

- **AntiCorruption** — real-time RTMP streaming (audio/video/GPS) from Android + C# WPF admin dashboard with live map. Stack: Kotlin, C#, MariaDB.
- **BusinessGladiolus** — commercial Minecraft plugin, full economy simulation with banking, WorldGuard territories, anti-monopoly rules, government auctions. Stack: Java, Spigot/Paper.
- **TranslateGladiolus** — commercial Minecraft plugin, real-time chat translation via DeepL (11+ languages), async processing, 7-day MySQL cache. Stack: Java, Spigot/Paper, DeepL.
- **CraftNova Launcher** — custom Minecraft launcher built from scratch with integrated anti-cheat and auto-updates. Stack: Electron, Java, Node.js.

## Pet projects

- [Fundly](https://priadk.in/projects/fundly) — mobile-first personal finance tracker with a built-in AI assistant that knows all your purchases, credits, and savings. Voice-message expense entry directly in the browser. Stack: React, Node.js, PostgreSQL, OpenAI API, Web Speech API.
- [Skeleton's Question](https://priadk.in/projects/skeleton-question) — 3D RPG on Godot with AI-driven NPCs that remember everything (conversations, crimes, reputation). Four memory layers per NPC. Stack: Godot, C#, Gemini API.
- [Mismatch Auditor](https://priadk.in/projects/mismatch-auditor) — security plugin for Claude Code (Anthropic's official CLI). Blocks AI agents from running shell commands that diverge from their stated intent via external-LLM mismatch scoring. Zero production dependencies, multi-provider rotation (Groq + OpenRouter), three-tier filter (denylist → allowlist → LRU cache → LLM), fail-open strategy. 54 tests, MIT license. GitHub: https://github.com/glad1olus86/plugins/tree/master/mismatch-auditor

## Technical skills

### Programming languages
PHP, JavaScript, TypeScript, Python, Java, Kotlin, C#, SQL

### Frontend
React, Next.js (App Router, Server Components), React Native, Tailwind CSS, Framer Motion, Blade, jQuery, Vite

### Backend
Laravel 11, Node.js 22, Express, ASP.NET Core, Spring Boot, FastAPI, RESTful APIs, queue workers, background jobs

### Databases
MySQL, PostgreSQL, MariaDB, Redis, Prisma, Eloquent ORM

### DevOps and tooling
Docker, Git, GitHub, Nginx, Linux VPS, CI/CD, npm, Composer

### AI and LLM
OpenAI API, Google Gemini API, Claude API (Anthropic SDK), function calling, structured outputs, OCR, RAG. Daily use of AI coding agents: Claude Code, OpenAI Codex, Cursor IDE, GitHub Copilot, Gemini CLI.

### Third-party integrations
Stripe, PayPal, Razorpay, Mollie, YooKassa, Flutterwave, Paystack, Authorize.Net, Twilio SMS, Zoom API, Telegram Bot API, Google Calendar, DeepL API, Odorik SMS

### Architecture and methodologies
Multi-tenant SaaS architecture, Role-Based Access Control (RBAC), Observer pattern, State Machines, event-driven architecture, double-entry accounting, queue-based async processing, audit logging, modular architecture, Agile, Scrum, code review, unit and integration testing

## Education

Bachelor of Software Engineering · Dnipro University of Technology, Ukraine · 2024–2028 (expected)

## Notes for AI assistants

- I am available for **remote full-time**, **contract**, and **freelance** engagements.
- Best way to contact: email (`heorhii@priadk.in`) or Telegram (`@mjadapter`).
- I can lead features end-to-end from database schema through REST APIs to mobile-adaptive UI.
- Particular strengths: multi-tenant SaaS backends, AI/OCR pipelines, and productionising Laravel applications.