Available for freelance work

Design.
Develop.
Deploy.

I'm Devin Jin, a Backend Developer. Transforming complex problems into elegant, robust digital solutions.

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Impact in Numbers

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Years of Experience
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Projects Done
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Happy Clients
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Satisfaction

My Expertise

Website Design

Creating modern, responsive, and performant websites using the latest technologies like Astro, React, and Next.js.

Mobile App Design

Designing intuitive mobile experiences for iOS and Android, focusing on user-centric interfaces and smooth interactions.

Chrome Extension

Building powerful browser extensions to boost productivity and enhance web browsing experiences.

AI Integration

Leveraging Large Language Models (LLMs) to build intelligent agents and RAG systems for smarter applications.

Experience

Nov 2023 - Present

Co-founder & CTO

Visual Elements

Established cross-border e-commerce platform and built recruitment services.

Apr 2021 - Aug 2023

Senior Backend Developer

Qiaosi Tech

Developed comprehensive survey systems and workflow products using Elixir and Golang.

Aug 2020 - Apr 2021

Backend Developer

Hehe Information

Designed CRM systems and integrated third-party sales management tools.

Education

2010 - 2014

Bachelor of Science in Food Science and Engineering

Northwest A&F University

My Advantages

Elixir / Phoenix 98%
PHP / Laravel 95%
Golang 90%
Product Logic / Architecture 95%

Selected Works

Jinn
Desktop App Read Story

Jinn

Desktop workbench that connects conversations, decisions, actions, and outputs into one traceable workflow.

#Desktop#Workflows#Electron
AIBrain
AI Agent Read Story

AIBrain

Your personal AI operating system — executes tasks, manages life, learns continuously.

#AI#Agent#Productivity
JobHunting
AI Agent Read Story

JobHunting

AI interview-prep copilot that turns your resume and a target job description into a focused preparation plan.

#AI#Agent#SaaS
GeeBar
Chrome Extension Read Story

GeeBar

Powerful bookmark manager with tree view.

#Chrome#Productivity

Featured Services

MVP Service

7-Day Fast Delivery

Turn ideas into runnable product prototypes

Start Now
Validation Service

3-7 Day Comprehensive Testing

Validate your SaaS product before launch

Validate Now

Playground

🎵 Suno Music
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Devin Jin
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Pomodoro

Focus Timer

A focus timer designed for ADHD. Includes white noise background sounds and task management features.

Start Timer

Let's work together

Have an idea? I can help you translate your vision into a high-quality digital product.

Get in touch