Looking to join a team  ·  Seoul, South Korea

Yakhyokhon
Akhmadaliev.

Full-Stack Software Engineer shipping production-ready web and SaaS products — 10+ delivered across Korea and global markets, and currently building Visaro under Ildiz Solutions. Now looking to join a team to build complex products and grow together.

GitHub·LinkedIn·LeetCode·Email
Location  Seoul, South Korea
Visa  F-2-7
Status  Open to full-time
Scroll
01 / About

I’m Yakhyokhon — a full-stack software engineer based in Seoul, South Korea, building and shipping production-ready web and SaaS applications.

Under my own studio, Ildiz Solutions, I deliver client projects end-to-end — from architecture and development to deployment and maintenance — and I’m currently building Visaro. Previously an R&D engineer at Nuriflex, working on enterprise Energy Management Systems used in live production environments.

I care about systems that work reliably at scale, interfaces that feel effortless, and code that the next person can actually read. After building on my own, I’m now looking to join a team where I can take on complex projects and grow as an engineer.

Frontend

React.jsNext.jsTypeScriptJavaScriptTailwind CSS

Backend

Node.jsExpressNestJSREST APIDjangoFlaskJavaSpring

Cloud / DevOps

AWSDigitalOceanDockerCI/CDLinux

Data & Tools

PostgreSQLMongoDBGit / GitLabJiraPrismaClaude CodeMCP
02 / Experience
  • Ildiz Solutions
    Founder & Full-Stack Developer
    Dec 2025 — Present
    Seoul, South Korea · Remote
    • Visaro AI (flagship SaaS, live) — built an AI visa-document platform for foreigners in Korea solo, from architecture to production
    • Designed a Turborepo monorepo (web · admin · API) with 25+ NestJS domain modules — auth, LLM, RAG, documents, payments, subscriptions
    • Built a pgvector RAG pipeline grounding answers in official visa documents (OpenAI text-embedding-3-large); multi-LLM (OpenAI · Gemini) abstraction with SSE streaming
    • Toss Payments billing / subscriptions / credits, Bull + Redis async workers, Google OAuth + JWT rotation, PIPA-compliant PII masking, and 5-language i18n
    • Set up Jest · Vitest · Playwright unit + E2E tests with CI/CD
    • Delivered 5+ client web / SaaS platforms on React, Next.js, Node.js, and NestJS — deployed on AWS / DigitalOcean with Docker automation, owning scope and timeline
  • Nuriflex Co., Ltd.
    Software Engineer (R&D)
    Oct 2024 — Nov 2025
    Seoul, South Korea
    • Developed and operated the EMS web dashboard for real-time IoT data monitoring in production
    • Optimized React rendering and added server-side pagination for large time-series datasets
    • Built Java IoT data-collection backend modules, integrated with existing EMS systems
    • Implemented real-time communication via REST APIs and WebSocket
    • Collected industrial equipment data over the Modbus protocol, with RabbitMQ async messaging between systems
    • Diagnosed and resolved production API and data-loading issues, improving service stability
03 / Projects
  • AI platform helping foreigners in Korea navigate visa paperwork — document explanations, personalized checklist generation, conversational form-filling, and auto-filled PDF output, all with privacy-first workflows. Architected and built end-to-end as a Turborepo monorepo (user web, admin panel, NestJS API).
    • RAG pipeline over immigration documents — OpenAI GPT-4.1 grounded on pgvector embeddings for source-backed answers
    • Conversational form-filling that produces auto-filled, downloadable visa PDFs
    • Privacy-first: sensitive PII auto-masked after 24h, Redis session TTL, GDPR/PIPA compliant
    • Turborepo monorepo — web + admin (Next.js 15 / React 19) and NestJS API sharing a typed design system
    • Toss payments with a credit system; CI/CD via GitHub Actions to Vercel + Fly.io
    Architecture
    Next.js 15 (Vercel) → NestJS API (Fly.io) → PostgreSQL + pgvector (Neon) · Redis (Upstash) · OpenAI GPT-4.1 RAG · Cloudflare R2
    Role
    Founder & lead engineer — product, architecture, full-stack, AI, and DevOps
    Stack
    Next.js 15React 19NestJSTypeScriptPostgreSQLpgvectorRedisOpenAI / RAGVercelFly.io
    Live
  • Enterprise platform for real-time energy monitoring and reporting, running in live production. As an R&D engineer on the company team, I worked across the full stack — from React dashboards to Java data-ingestion backends handling real IoT and industrial-equipment data.
    • Developed and operated the EMS web dashboard for real-time IoT monitoring in production
    • Optimized React rendering with server-side pagination for large time-series datasets
    • Built Java IoT data-collection modules integrated with existing EMS systems
    • Real-time data pipeline over REST APIs and WebSocket, with RabbitMQ async messaging
    • Ingested industrial equipment data over the Modbus protocol
    • Diagnosed and hot-fixed production API and data-loading issues, improving reliability
    Architecture
    React dashboards → Java REST API + WebSocket → Modbus / IoT ingestion → RabbitMQ → MariaDB (Oracle Cloud)
    Role
    R&D engineer (company team) — frontend dashboards and backend data modules
    Stack
    React.jsJavaREST APIWebSocketRabbitMQModbusMariaDBOracle Cloud
  • Production e-commerce platform selling Korean skincare, cosmetics, and health products into the Uzbekistan market. Mobile-first, fully trilingual storefront (Uzbek / Russian / English) with Telegram-based auth and an admin back office covering catalog, orders, inventory, and import shipments. Built and deployed end-to-end as an npm-workspaces monorepo.
    • Telegram-first authentication and order notifications via a Telegraf bot — no password signup needed for customers
    • FIFO inventory batches with per-batch buying prices, so COGS and real profit margins are tracked per order
    • Import-shipment module — landed cost tracking (freight, customs, other expenses) allocated across shipment items
    • Trilingual storefront (uz/ru/en) with i18next, configurable branding, and Zod + React Hook Form checkout flows
    • Bull + Redis job queues for notifications and scheduled web-push campaigns; Sharp/Cloudinary image pipeline
    • Self-hosted deploy — GitHub Actions CI (lint, type-check, migration tests) building images to GHCR, shipped via Docker Compose behind nginx with Cloudflare TLS
    Architecture
    Next.js 14 storefront + admin (Docker/nginx) → NestJS API → PostgreSQL (Prisma) · Redis + Bull · Telegram Bot API · GHCR / GitHub Actions
    Role
    Solo — product, architecture, full-stack build, and self-hosted DevOps
    Stack
    Next.js 14NestJSTypeScriptPrismaPostgreSQLRedis / BullTelegrafTanStack QueryZustandDockernginxGitHub Actions
    Live
Open Source Activity
@yahyo7
1,028Contributions · 2022–2026
696Private Contributions
284Public Commits
19Longest Streak · days
blog-mern 47x-clone-mern 40djangobnb 25inventory-management 23
04 / Education & Credentials
M.S. — AI Business
Seoul National University of Science and Technology
2023 – 2024
GPA 3.82 / 4.5
B.A. — Business Administration
Chonnam National University
2017 – 2022
GPA 3.92 / 4.5
Verified Badges
TOPIK Level 5 — Korean Language2024
IELTS 7.0 — English2022
05 / Contact

Let’s build
something great.

[email protected]

I’m looking to join a team to build complex products and grow as an engineer — open to full-time roles. Based in Seoul, available globally. I read every message.

GitHub ↗LinkedIn ↗LeetCode ↗