Summary
Overview
Work History
Education
Skills
Websites
Additional Highlights
Timeline
AssistantManager
Hans Chan

Hans Chan

Full-Stack Developer
Shenzhen

Summary

Seasoned Full-Stack Software Engineer with over 10 years of experience building, scaling, and leading development of more than 100 web and mobile applications across diverse industries - including mapping, logistics, social media, and smart home automation. Adept at collaborating with cross-functional teams, mentoring developers, and delivering clean, maintainable, and high-performance code. Skilled in both frontend and backend development, cloud services, and agile delivery.

Overview

15
15
years of professional experience

Work History

Lead Full-Stack Developer

KHDev
05.2022 - Current
  • Built tons of applications for small/mid-sized companies and individual customers.
  • Led a team of professional software developers.
  • Delivered qualified web, mobile, and AI products.

Full-Stack Software Developer

Freelance
05.2011 - Current
  • Delivered 100+ production-ready web, mobile, and backend applications for startups and established businesses.
  • Designed scalable system architectures, reusable components, and clean APIs across multiple industries.
  • Worked directly with founders, designers, and product teams to turn ideas into reliable, user-focused software.

Senior Mobile Developer

Sesh Women Fitness
06.2025 - 11.2025
  • Collaborated with a high-performing engineering team to deliver major updates across iOS and Android applications.
  • Led a full refresh of the app’s design system to improve usability, accessibility, and visual consistency.
  • Enhanced core workout features to improve performance, scalability, and long-term maintainability.
  • Integrated Superwall for paywall management, Stripe for subscription payments, and personalized workout algorithms based on user goals and fitness levels.
  • Managed features from design through deployment, ensuring a smooth user experience and high-quality code.
  • Worked closely with the design team to maintain consistent use of the design system across the application.

Lead Software Developer

KrackWins
12.2023 - 08.2025
  • Led end-to-end development of the KrackWins platform with a high-performing engineering team.
  • Built and shipped the full public website, admin panel, backend APIs, and iOS and Android applications.
  • Improved system performance and reliability, contributing to a stronger user experience and revenue growth.

Full-Stack Software Developer

TroutRoutes / OnX
04.2024 - 05.2025
  • Worked closely with TroutRoutes and OnX engineering teams to enhance web and Android mapping applications.
  • Upgraded MapView functionality, including map interactions, tagging, route drawing, and custom markers.
  • Introduced a new authentication system and integrated Stripe for payments.
  • Resolved critical bugs and optimized map-based features for performance and stability.

Lead Mobile Developer

CheckSammy
06.2024 - 01.2025
  • Built the entire CheckSammy mobile platform from scratch for iOS and Android.
  • Worked closely with PrimeAI, CheckSammy product teams, and backend engineers to deliver production-ready applications.
  • Architected scalable mobile codebases and shipped fully functional apps to production.

Software Developer

Rebound Dynamics
02.2023 - 05.2024
  • Built internal mobile applications used by local warehouse teams to support daily operations.
  • Implemented features for inventory tracking, workflow efficiency, and logistics support.
  • Collaborated with internal teams to align mobile tools with operational requirements.

Lead Software Developer

ELK Products
10.2021 - 01.2024
  • Built full-featured iOS and Android applications for home and business automation systems.
  • Developed software supporting security cameras, Z-Wave devices, alarms, lighting, garage doors, panels, and controllers.
  • Worked closely with an experienced internal team and was promoted to Lead Engineer based on technical leadership and delivery.

Lead Mobile Developer

Hive Social
10.2019 - 05.2021
  • Built the Hive Social mobile application from the ground up as the sole mobile developer.
  • Worked directly with CEO Kassandra Pop and the design team to shape the product vision and execution.
  • Scaled the app to 2M+ users, including a viral surge of 200K+ users in a single night.
  • Reached top App Store rankings, temporarily surpassing Facebook during peak growth.

Senior Software Developer

POD.io
06.2019 - 09.2019
  • Worked with a distributed European engineering team on a large-scale, LinkedIn-like social platform.
  • Contributed to iOS and Android mobile applications serving millions of users.
  • Improved app performance, reliability, and API communication under tight timelines.

Lead Software Developer

IntelliBrush
09.2018 - 01.2019
  • Built native iOS and Android applications for e-brush hardware using BLE communication.
  • Implemented real-time brush handling, device connectivity, and performance-optimized rendering.

Software Developer

EPLAN P8
11.2013 - 06.2016
  • Developed AutoCAD-integrated applications supporting electrical engineering workflows.
  • Enhanced drawing tools, automation features, and system integrations in a professional engineering environment.

Education

Bachelor of Science - Computer Engineering

Beijing University of Technology

Skills

  • Swift
  • Kotlin
  • JavaScript
  • TypeScript
  • Python
  • C#
  • Java
  • Objective-C
  • React
  • React Native
  • Angular
  • Nodejs
  • NET
  • Django
  • Express
  • SwiftUI
  • IOS
  • Android
  • Flutter
  • AWS
  • Firebase
  • Azure
  • Docker
  • CI/CD
  • GitHub Actions
  • PostgreSQL
  • MySQL
  • MongoDB
  • SQLite
  • Jira
  • Xcode
  • Visual Studio
  • Cursor
  • Android Studio
  • Visual Studio Code
  • Figma
  • Git
  • Bitbucket
  • REST APIs
  • GraphQL
  • WebSockets
  • Microservices Architecture
  • Agile
  • Scrum

Additional Highlights

  • Proven ability to deliver production-ready software under tight timelines.
  • Experienced working in remote, cross-functional teams.
  • Strong focus on code quality, testing, and performance optimization.
  • Passionate about building scalable, user-centric applications.

Timeline

Senior Mobile Developer

Sesh Women Fitness
06.2025 - 11.2025

Lead Mobile Developer

CheckSammy
06.2024 - 01.2025

Full-Stack Software Developer

TroutRoutes / OnX
04.2024 - 05.2025

Lead Software Developer

KrackWins
12.2023 - 08.2025

Software Developer

Rebound Dynamics
02.2023 - 05.2024

Lead Full-Stack Developer

KHDev
05.2022 - Current

Lead Software Developer

ELK Products
10.2021 - 01.2024

Lead Mobile Developer

Hive Social
10.2019 - 05.2021

Senior Software Developer

POD.io
06.2019 - 09.2019

Lead Software Developer

IntelliBrush
09.2018 - 01.2019

Software Developer

EPLAN P8
11.2013 - 06.2016

Full-Stack Software Developer

Freelance
05.2011 - Current

Bachelor of Science - Computer Engineering

Beijing University of Technology
Hans ChanFull-Stack Developer