Kelvin Hong
About Kelvin

Frontend specialist with full-stack delivery experience.

I'm a Senior Frontend Engineer with 10+ years of experience building web, mobile, and cross-platform products. Frontend is my specialty, but I also deliver Node.js services, APIs, databases, cloud infrastructure, and production deployments.

Get in touch

Based in
Bali, Indonesia
Experience
10+ years
Focus
Frontend · Cross-platform · Full-stack delivery
Background

From interface design to product engineering.

I studied Visual Communication Design and began my career building responsive interfaces for large consumer products. That background shaped my attention to hierarchy, interaction details, and the clarity of information presented to users.

My responsibilities later expanded into design systems, cross-platform architecture, Node.js services, databases, real-time systems, transaction workflows, CI/CD, and early-stage product development. Today, I combine frontend depth with the ability to deliver and operate the systems behind the interface.

Working principles

How I deliver software

I aim to understand the problem, make trade-offs explicit, and remain accountable through production.

01

Understand the problem first

Clarify the user workflow, business objective, and technical constraints before selecting an implementation.

02

Make complexity understandable

Translate complex rules and system states into interfaces that help users make the correct decision.

03

Own delivery through production

Stay involved through implementation, deployment, feedback, troubleshooting, and iteration.

Capabilities

Frontend depth with full-stack delivery range

My core expertise is frontend engineering, supported by hands-on experience with backend services, APIs, databases, cloud infrastructure, CI/CD, and product discovery.

01

Frontend systems

React, Next.js, TypeScript, design systems, testing strategy, accessibility, and frontend performance.

02

Cross-platform products

Shared React Native foundations for Android, iOS, web, and browser-extension products.

03

Product ownership

Product discovery, prioritization, architecture, implementation, deployment, and production support.

04

Backend & cloud

Node.js services, GraphQL and REST APIs, PostgreSQL, Docker, Cloudflare, AWS, and CI/CD pipelines.

05

Complex transactions

Authentication, transaction signing, wallets, marketplace integrations, real-time workflows, and operational software.

Experience

10+ years of increasing technical ownership

Experience across consumer products, internal platforms, cross-platform applications, and early-stage product development.

01

Senior Frontend Developer

Meteor Wallet

Built transaction-heavy wallet products across Android, iOS, web, and browser extension from a shared React Native foundation.

  • Delivered Meteor Wallet v2 across four platforms from a shared React Native codebase.
  • Implemented passkey authentication, transaction signing, WalletConnect, Ledger, and third-party integrations.
02

Senior Frontend Developer

Shipper

Built operational workflows for an omnichannel commerce platform connecting major Indonesian marketplaces.

  • Delivered order, inventory, warehouse, and product-management workflows from requirements through production support.
  • Reduced CI/CD deployment time by more than 50%.
03

Full-stack Software Engineer

Lunch Actually Group

Built web, mobile, internal, and real-time systems supporting product expansion across multiple countries.

  • Designed and implemented a custom real-time chat system.
04

Frontend Developer

Ekrut

Contributed to decomposing a monolith into independently deployable products and shared frontend foundations.

  • Built and maintained a company-wide design system and component library.
  • Delivered a media-site redesign that increased organic search traffic by 3,500% within one year.
  • Received the Top Performer of the Year award twice.
05

Frontend Developer

Elevenia

Built responsive marketplace interfaces across desktop, mobile web, and email.

Independent product project

KelolaResto

A short product-validation cycle that tested both execution speed and market judgment.

01Build

Built the first working restaurant operations product in three days.

02Validate

Refined the product over three weeks while visiting restaurants and researching the market.

03Decide

Planned an early pivot after identifying high switching costs, incumbent lock-in, and limited runway.

Read the KelolaResto case study

Engineering workflow

AI-assisted delivery with accountable engineering ownership.

I use Codex, Claude Code, Gemini, MCP, and custom skills to accelerate research, implementation, and review. I remain responsible for architecture, product decisions, code quality, and production verification.

  1. 01DecideProduct context and architecture
  2. 02DeliverImplementation through production
  3. 03VerifyQuality, outcomes, and operation
Contact

Open to senior frontend, cross-platform, and fullstack engineering.

Frontend is my specialty, supported by full-stack delivery experience. Available remotely worldwide and open to relocation.

Email
kelvinok52@gmail.com