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Malt Strategy
Ably ChoiAC

Ably Choi

AI & Backend Engineer | Automations, SaaS Platform

€431/day
Gera, DE
15+ years
Fullstack
automation
Blockchain
Python
Node.js

Average response time: 1 hour

About Ably

I’m a senior AI & Backend Engineer who helps startups and enterprises build fast, automated, and scalable products — from MVP to full SaaS platforms.

With 15+ years of hands-on experience in backend architecture, automation, and AI integration, I specialize in turning complex ideas into reliable systems that simply work.
I’ve led projects ranging from Layer-1 blockchain prototypes (Lumen & Luna) to AI-powered analytics dashboards for financial and healthcare clients.

My core tech stack includes FastAPI, Python, Node.js, PostgreSQL, and n8n, combined with cloud-native infrastructure and automation pipelines.
I’m also experienced in data crawling, reporting systems, chatbots, and real-time dashboards — helping clients connect data, automate workflows, and accelerate growth.

I bring both technical leadership and startup agility — understanding not just how to code, but why it matters for your business.
My goal is to create products that are technically solid, user-friendly, and built for long-term scalability.

Let’s collaborate if you’re looking for a partner who can move fast, deliver quality, and bring clarity to complex technical challenges.

  • English

    Native or bilingual

  • Korean

    Native or bilingual

Can work on-site
Gera (up to 50km)

Experience

  • okstudio & rmsystem
    Independent Developer / Founder
    DIGITAL AND IT
    January 2023 - Today (3 years and 5 months)
    Bangkok, Thailand
    Description:
    • Led the full-stack development of multiple web platforms and mobile apps for clients in Korea.
    • Designed scalable back-end architectures using FastAPI and MySQL, integrating payment gateways and real-time APIs.
    • Built automated deployment pipelines (CI/CD) with Nginx, Docker, and Cloudflare for reliable uptime.
    • Collaborated closely with designers and marketers to deliver fast, lightweight, SEO-optimized websites.
    • Delivered over 20 production-grade projects, from MVPs to enterprise-level platforms.
    Developed and maintained enterprise resource management systems and automation tools for manufacturing clients.
    • Integrated legacy systems with modern APIs and improved database performance through query optimization and caching.
    • Implemented internal dashboards, reporting systems, and data pipelines for business intelligence.
    • Collaborated with cross-functional teams to migrate on-premise infrastructure to cloud-based environments.
    • Improved system stability and reduced downtime by 40% through proactive monitoring and log automation.

    Keywords: Java · Spring · PostgreSQL · API Integration · Automation · Cloud Migration · Monitoring · BI


    Keywords: FastAPI · Vue.js · MySQL · Nginx · Docker · CI/CD · Automation · SaaS
    Fullstack automation Blockchain Python IT Architecture
  • TradingNetworks
    Blockchain & Backend Engineer
    January 2018 - January 2022 (4 years)
    Seoul, South Korea
    • Led integrati• Led integration of AI-driven reporting tools for smart-contract analytics and marketing dashboards.
    • Designed and implemented a custom Layer-1 blockchain prototype inspired by Lumen and Luna architectures, focusing on consensus optimization and token issuance.
    • Built core modules for on-chain transaction validation, staking logic, and block synchronization using Go and Rust.
    • Deployed private testnets and API endpoints for developer tools and smart-contract testing.
    • Collaborated with cryptography researchers to improve scalability and interoperability with existing EVM chains.

    ⸻on of AI-driven reporting tools for smart contract analytics and marketing dashboards.
  • Okstudio
    Senior Android & Web Developer
    January 2005 - January 2018 (13 years)
    Seoul, South Korea

    • Led end-to-end development of Android apps and responsive web platforms for diverse industries.
    • Took full ownership of product lifecycle — from UI/UX design, backend architecture, and cloud deployment to growth analytics.
    • Developed and maintained large-scale systems using Java, Kotlin, PHP, and MySQL with strong focus on stability and performance.
    • Implemented automation scripts, CI/CD pipelines, and SEO-optimized frontends to improve release efficiency and visibility.
    • Collaborated with startups and enterprises to transform product concepts into high-performing, user-centered digital solutions.

    Keywords: Android · Kotlin · Java · PHP · MySQL · REST API · CI/CD · Cloud Deployment · SEO Optimization

    ⸻

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Education

  • Bachelor's Degree
    Bachelor's Degree
  • TensorFlow Developer Certificate
    Google
    2021
    TensorFlow Developer Certificate
Check out Ably's education

Skill set

Backend Service Development
Mobile App Deployment
Database Management (e.g., SQL, NoSQL)
IT Architecture

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