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pya-h/README.md

โšก Paya (@pya-h)

Full-spectrum software engineer focused on building robust systems from low-level logic to user-facing products.
I work across backend, blockchain, infrastructure, and application development with an ownership mindset.

๐Ÿš€ Capability Snapshot

  • I can design and implement complete products end-to-end, not just isolated features.
  • I move comfortably from low-level programming and raw SQL to high-level APIs and production systems.
  • I build centralized and decentralized architectures depending on product constraints.
  • I prioritize reliability, control, and maintainability over hype-driven complexity.
  • I adapt quickly to new stacks and paradigms when the project demands it.

๐Ÿ“Š End-to-End Delivery Chart

flowchart LR
    A["Problem Framing"] --> B["Architecture Design"]
    B --> C["Protocol / Smart Contract Layer"]
    B --> D["Backend Services & APIs"]
    D --> E["Data Layer (SQL / NoSQL / ORM / Raw Query)"]
    D --> F["Client Layer (Web / Desktop / Mobile / Console)"]
    C --> G["Chain Integration (RPC / Indexers / Bots)"]
    E --> H["Deployment & Runtime Ops"]
    F --> H
    G --> H
    H --> I["Monitoring, Debugging, Iteration"]
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๐Ÿงฉ Skill Matrix

Domain Core Tools Strength Delivery Style
Systems & Performance Assembly, C/C++, Rust, Go High Low-level control, performance-sensitive implementation
Backend Engineering NestJS, FastAPI, Flask, Django, Axum, Echo, chi, ASP.NET High API-first design, service architecture, reliability-first backend work
Blockchain Engineering Solidity, Ethereum RPC, Solana Anchor, Gnosis, UMA, Hardhat, Foundry High On-chain + off-chain integration, protocol-aware backend systems
Data & Storage PostgreSQL, MySQL, SQLite, MongoDB, Prisma, TypeORM High Schema design, direct SQL control, practical persistence strategy
Frontend & Product Layer React, Angular, Vue, NextJS, yew Strong Functional UI layers tightly connected to backend logic
DevOps & Observability Docker, nginx, Prometheus, Grafana, Loki, pm2 Strong Containerized services, monitoring, production diagnostics
Platform Breadth Desktop, Console, Mobile, Telegram Bots Strong Cross-platform implementation with pragmatic architecture choices
Embedded & Hardware Arduino, ARM STM32F4 Active Firmware-level experimentation and microcontroller integration

๐Ÿ‘จโ€๐Ÿ’ป Paya | @pya-h

Full-stack developer with a sharp focus on backend systems, decentralization, and developer autonomy. I build reliable software from scratch โ€” from SQL to smart contracts โ€” with a strong bias toward low-level control and simplicity. Experienced also in Desktop App, Console App, Mobile App development and Also in some other platform/frameworks.

๐Ÿ› ๏ธ Tech Focus

  • Languages: Assembly (8086), C/C++, Rust, Go, C#, Java, PHP, Python, SQL, TypeScript, Visual Basic [.NET], Fortran
  • Frameworks: Qt, Axum, Echo, chi, NodeJS, NestJS, NextJS, Hono, Django, FastAPI, Flask, Laravel, ASP.NET
  • Blockchain: Solidity, Ethereum JSON-RPC, Solana (Anchor), Gnosis, UMA, Foundry, Hardhat, Ganache
  • Databases: PostgreSQL, MySQL, SQLite, MongoDB, GraphQL, TypeORM, Prisma
  • Other Tools: Android Studio, Mono4Android, Basic4Andoird, Telegram Bot, MinIO, Docker
  • Frontend Frameworks: React.JS, Angular.JS, Vue.JS, yew
  • DevOps: Docker, Prometheus, Grafana, loki, nginx, pm2
  • Embedded Systems: Arduino, ARM STM32F4 (Microcontrollers)

๐Ÿง  Projects

โ›“๏ธ Onchain Producs & Online Games

  • ๐Ÿง  AskAroundPredictionMarket: Modular NestJS + PostgreSQL backend for prediction markets, integrating Gnosis contracts with event-driven on-chain sync, Swagger-documented APIs, dispute/resolution flows, payout logic, and wallet-linked user/account management for secure custodial-style operations.
  • ๐ŸŽฏ WinmoreBackend: Game-focused Web3 backend in NestJS for Plinko and Dream Mine with referral/wallet systems; Plinko outcomes are probability-driven and backend-resolved (not client random), then synchronized with WinMore-Frontend for smooth ball motion and consistent landing logic, while chain/token indexer support is configurable for multi-chain expansion.
  • ๐Ÿ”„ tayadex-backend: DEX backend line integrated with Hono for swap flows plus referral and point mechanics, designed for Web3 product growth features.
  • ๐ŸŽฒ t3dServer + t3d: Online 3D Tic-Tac-Toe stack with realtime gameplay, AI and online rivals, league/ranking systems, social features (chat + notifications), and multiplayer progression mechanics across multiple game modes.

๐Ÿค– Telegram Bot Platforms & Cores

  • ๐Ÿช™ online_pricer_bot: Production-grade Telegram pricing platform with alerts, VIP plans, channel/group automation, multilingual UX, token conversions, portfolio tracking, and admin broadcast/statistics controls; implemented in pure Python with direct MySQL control (no ORM).
  • ๐Ÿ“š booklets_telegram_bot: Telegram workflow for categorized booklet delivery with teacher/TA/admin roles, support pipelines, and usage statistics.
  • โœ… ToGo4BotPlus: Golang long-poll bot for task scheduling/management with optimized command parsing and multi-branch architecture.
  • ๐Ÿงฉ Bot Core Line: MyPhpTelegramBotCore, Payagram (Python), and Payagraphy.ts (TypeScript) for reusable Telegram bot core/framework development.

๐Ÿ›๏ธ Commerce & Business Products

  • ๐Ÿ›’ Pheelstyle: Full-stack online shop implementation and baseline commerce architecture.
  • ๐Ÿงบ KodeShop: Evolved e-commerce variant derived from Pheelstyle with customized deployment/demo flow.
  • ๐Ÿ—๏ธ businessco: Business site stack (Django + React) shipped for a real construction group presence.
  • ๐Ÿ“Š minimal-board: PHP-based online-shop dashboard sample focused on practical operations and panel workflow.

๐Ÿงฎ Computational & Tooling Projects

  • ๐Ÿ›ก๏ธ hide-n-seed: Rust tool for encrypted file encapsulation/extraction with password-protected hidden payload workflows.
  • ๐Ÿ”ข byteculator: Big-number expression calculator in Rust using string-based arithmetic to bypass native numeric overflow limits.
  • ๐Ÿ“ˆ lnctrl: Interactive web app for learning and practicing linear control concepts with simulation-oriented UI.
  • ๐Ÿงฌ RemoteVector: Vector/matrix expression engine with server-client roots, variable definitions, and symbolic-style vector operations.

๐ŸŒŸ Flagship Builds

  • ๐Ÿงฑ TheWall: No-framework Java server/client system for notice management with account flows, search/filter support, favorites, and fully custom file-based persistence.
  • ๐Ÿ’ฌ TinTinChat: Self-hostable minimal realtime chat platform in pure PHP/JS with encrypted messaging (RSA + AES), group/direct chat, media workflows, PWA support, and automated tests; It's so minimal - But with all required properties & features in a decent chat room - that you can simply run this on any php cpanel-based hosts.
  • ๐Ÿ’น CrypTracker: [Vibe-Coded Mostly] Dependency-free self-hosted crypto portfolio tracker (pure PHP/JS) with FIFO/AVG P&L engine, multi-provider API failover, security hardening, and export tools.
  • ๐ŸŒ FiVi: [Vibe-Coded Mostly] Go CLI for resilient proxy connectivity that discovers and tests nodes concurrently, validates blocked-target reachability, ranks by latency/success, and auto-failovers when links degrade.

๐Ÿ› ๏ธ Scripting & Automation Utilities

  • ๐Ÿ“œ Useful-Scripts: Bash/Batch toolkit for bulk repo cloning, system cleanup, deployment automation, and queued file downloading.
  • ๐Ÿ”Ž anyshape: High-throughput Go search utility for recursive codebase scanning with combinational keyword matching and worker-based concurrency.
  • ๐Ÿงฐ batchrename: Batch rename utility with both Python CLI and C++/Qt GUI implementations for filesystem automation tasks.
  • ๐ŸŒ PortScanner: Concurrent Go-based host scanner with tunable worker model for fast port-range checks.
  • ๐ŸŽฎ OmenBot: Script-like NodeJS bot-manager automation for multi-bot game participation and operational state handling.
  • ๐Ÿงช stress-test-on-prediction-market: TypeScript stress-testing workspace for validating prediction-market backend behavior under load.

๐Ÿงฑ C/C++ Systems & Game Projects

  • โ™Ÿ๏ธ Shatnard: Complex C console strategy game with two algorithmic implementations, save/load support, and customizable map-driven gameplay.
  • ๐Ÿ“Œ BulletinBoards.C: Old-school C project implemented in multiple distinct coding styles/architectures to demonstrate flexible design thinking.
  • ๐Ÿ’ฃ MineSweeperGame: C++ console game with dynamic dimensions, OOP structuring, and custom scoring/gameplay logic.
  • ๐Ÿ“– StoryGenreDetector: C++ text-analysis utility that predicts story genre using configurable keyword corpora.
  • ๐Ÿ–ผ๏ธ PhotoConsole: Visual C++ console image processor supporting color transforms, mirroring, enhancement, and transparency operations.
  • ๐Ÿ Snake: Console C++ snake implementation with auto-routing AI heuristics and path-randomization behavior.

๐Ÿ“ฑ Desktop & Mobile Client Apps

  • ๐Ÿฆ  CovidYab: Android app with two diagnostic quiz models and result strategies for symptom-based risk estimation.
  • ๐ŸŽฒ T3D-apk: Android companion demo for the online T3D game concept, including Firebase-enabled online flows.
  • ๐Ÿšฆ PassengerTraffix: C# desktop monitoring app for organization traffic logging, filtering, and report exports.
  • ๐Ÿ’ฌ Talk2: Python GUI chat application with group chat and file-transfer support.

๐ŸŽฒ Experimental & Fun Labs

  • ๐Ÿง  CuriousBob: Grid-based computational simulation where an agent must route/fill targets under movement constraints and hole hazards.
  • ๐Ÿ“ˆ WiseBidders: Python auction simulation with custom bidding rules and strategy-testing behavior.
  • ๐Ÿต MyMonkeyShooter: Early GameMaker action project with handcrafted gameplay loop and mechanics iteration.
  • ๐Ÿ•ธ๏ธ Open-Queue-Network-Simulation: C++ queueing-network simulation project for computing system-level performance parameters.

P.S. Also worth checking: ScratchBinaryMarket for from-scratch decentralized market implementation experience.

๐ŸŽฏ Interests

๐Ÿ—ณ๏ธ Prediction Markets

  • Market design, resolution mechanics, and exchange logic across centralized and decentralized architectures.
  • Secure wallet/account operations, on-chain/off-chain data sync, and protocol-aware backend engineering.

๐ŸŽฎ Game Dev & Reverse Engineering

  • Performance-oriented gameplay systems in C/C++, Go, and Rust.
  • Competitive game logic, simulation-heavy mechanics, and realtime interaction design.

โš™๏ธ Systems, Math & Engineering Depth

  • Complex algorithmic and probabilistic thinking for hard backend/game logic.
  • Low-level and system-near programming, from raw data structures to protocol/RPC-level integrations.

๐Ÿง  Currently Working On

  • Solana & EVM Blockchain
  • Interpretter/Compiler Design & Implemnetation
  • Exploitation Tools & Methods
  • Learning Zig, OCaml & Elixir (Maybe D)
  • Learning Ton Network & FunC & Tact

๐Ÿ“š Philosophy

Iโ€™m drawn to existential themes, complexity without chaos, and structured minimalism โ€” in both software and life. My favorite authors include Camus, Orwell, and Bulgakov. I build things that matter, learn what I must, and discard what I don't need. I prefer expressive, low-abstraction code and work best when I'm close to the metal โ€” from raw SQL queries to direct RPC calls. I read Camus, write Rust, and often build tools before using them.

๐Ÿ”— Also Find Me On

๐Ÿ”— And Also

  • ๐Ÿ” GitHub: pa-ya

๐Ÿค Engineering Identity

  • I am most effective on projects that require deep ownership across multiple layers of the stack.
  • I bring a builder mindset: understand the core problem, choose the minimal effective architecture, and ship.
  • I am comfortable in domains where precision matters: systems, blockchain integrations, and performance-aware services.
  • I can operate as an independent engineer or as the technical backbone of a small, fast-moving team.

Pinned Loading

  1. Shatnard Shatnard Public

    Shatnard console game; a simplae combination of two famous board games: Chess & backgammon.

    C 2

  2. t3dServer t3dServer Public

    T3D webserver

    JavaScript 2

  3. AskAroundPredictionMarket AskAroundPredictionMarket Public

    EVM-Based Decentralized Prediction Market backend, based on Gnosis contracts, which extra features such as leaderboard, statistics, socials, etc. A Minimal Angular frontend is also provided as sampโ€ฆ

    TypeScript 1

  4. hide-n-seed hide-n-seed Public

    Rust app for hiding files inside images (or whatever) and extracting them.

    Rust

  5. online_pricer_bot online_pricer_bot Public

    a Telegram bot for getting crypto coins prices updates.

    Python 4

  6. WinmoreBackend WinmoreBackend Public

    Winmore Backend in NestJS

    TypeScript