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Hi, I'm Junmin Lee, a mobile product engineer with 5 years of development experience, including around 4 years in mobile app development. I own full product lifecycles from planning to deployment and have shipped real-world apps in startup environments. I excel at cross-functional communication and translating product scenarios into concrete technical solutions. I am seeking remote freelance, contract, or remote-first opportunities where I can contribute strong product ownership and engineering culture, deliver MVPs quickly, and iterate with data-driven decisions.…Hi, I'm Junmin Lee, a mobile product engineer with 5 years of development experience, including around 4 years in mobile app development. I own full product lifecycles from planning to deployment and have shipped real-world apps in startup environments. I excel at cross-functional communication and translating product scenarios into concrete technical solutions. I am seeking remote freelance, contract, or remote-first opportunities where I can contribute strong product ownership and engineering culture, deliver MVPs quickly, and iterate with data-driven decisions.

Junmin Lee

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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Hi, I'm Junmin Lee, a mobile product engineer with 5 years of development experience, including around 4 years in mobile app development. I own full product lifecycles from planning to deployment and have shipped real-world apps in startup environments. I excel at cross-functional communication and translating product scenarios into concrete technical solutions. I am seeking remote freelance, contract, or remote-first opportunities where I can contribute strong product ownership and engineering culture, deliver MVPs quickly, and iterate with data-driven decisions.…Hi, I'm Junmin Lee, a mobile product engineer with 5 years of development experience, including around 4 years in mobile app development. I own full product lifecycles from planning to deployment and have shipped real-world apps in startup environments. I excel at cross-functional communication and translating product scenarios into concrete technical solutions. I am seeking remote freelance, contract, or remote-first opportunities where I can contribute strong product ownership and engineering culture, deliver MVPs quickly, and iterate with data-driven decisions.

Available to hire

Hi, I’m Junmin Lee, a mobile product engineer with 5 years of development experience, including around 4 years in mobile app development. I own full product lifecycles from planning to deployment and have shipped real-world apps in startup environments. I excel at cross-functional communication and translating product scenarios into concrete technical solutions.

I am seeking remote freelance, contract, or remote-first opportunities where I can contribute strong product ownership and engineering culture, deliver MVPs quickly, and iterate with data-driven decisions.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Flutter Developer at Fida

December 1, 2024 - December 1, 2025

Took full ownership of app development — handled all aspects of the Flutter codebase including architecture, UI implementation, and store release. Implemented AdPop mediation integration for in-app ad monetisation. Participated in product planning including app scenarios and use case definition. Maintained the live app through ongoing updates, crash resolution, and post-release improvements.

Flutter & Node.js Developer at LinkConnection

August 1, 2022 - November 1, 2023

Full product ownership of a healthcare app (hospital booking & physical therapy) — delivered Flutter frontend, Node.js REST API (MVP phase), and JavaScript admin dashboard from zero to launch. Designed the Node.js backend structure and MySQL schema for the initial MVP phase. Led developer communication with external vendors and freelancers; coordinated sprint scope and delivery. Contributed to product planning: wireframes, screen specifications, and app policy documentation.

Flutter Developer at Gramium

January 1, 2021 - January 1, 2022

Developed features for a dating and social meetup application using Flutter and Firebase. Implemented real-time data sync with Firestore for chat and social features.

Java Backend Developer at RFX Soft

October 1, 2019 - September 1, 2020

Built backend APIs and data-grid interfaces for a smart factory MES (Manufacturing Execution System) service. Contributed to web frontend development using vanilla JavaScript.