Portfolio — Overview

A selection of projects Evans has built and shipped across industries—from AI-powered recruitment to global e-commerce infrastructure. Each represents real challenges solved with thoughtful architecture and product craft.

PurrPal cat sleep companion app
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PurrPal

Independent Product 2025

A thoughtfully designed iOS app that helps cat owners soothe their feline companions to sleep. Features a curated collection of calming purring sounds, interactive visuals, and a timer function. Built end-to-end from concept to App Store launch, demonstrating product thinking at the intersection of pet care and mobile experience.

Swift iOS Product Design Audio Engineering
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HelloBoss AI recruitment platform
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HelloBoss

AI Startup, Japan 2023-2025

Led technical architecture for an AI-powered recruitment platform combining mobile app and SaaS dashboard. Designed scalable systems handling high-volume ML inference for resume parsing and candidate matching with sub-100ms response times. Built and mentored a distributed engineering team of 8+ engineers across multiple time zones.

AI/ML Next.js Node.js PostgreSQL Kubernetes
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AfterShip Returns Center platform
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AfterShip Returns

AfterShip, Hong Kong 2020-2023

Architected the Returns Center product—a self-service return management platform for Shopify and WooCommerce merchants. Built microservices handling millions of daily transactions, enabling seamless multi-currency and multi-warehouse operations. Reduced system latency by 40% through strategic caching and asynchronous processing.

Microservices AWS Shopify API React Node.js
AfterShip Reviews product
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AfterShip Reviews

AfterShip, Hong Kong 2020-2023

Built the Reviews product enabling e-commerce merchants to collect, manage, and display customer reviews across their storefronts. Implemented automated review request workflows, sentiment analysis integration, and multi-platform syndication. Served 10,000+ merchants processing millions of review data points.

SaaS Data Pipeline React Node.js MongoDB
MMORPG game scene
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MMORPG Game Backend

Gaming & EdTech, China 2016-2019

Designed and built real-time multiplayer game backend infrastructure supporting 100K+ concurrent players. Implemented WebSocket services for real-time battle synchronization, player matchmaking, and in-game economy systems. Optimized for low-latency communication and horizontal scalability across distributed servers.

WebSocket Go Redis Microservices Real-time

What can he do for you?

  • Build complete web & App products from concept to launch, with scalable architecture and cloud deployment
  • Integrate AI into your workflows to automate repetitive tasks and boost team productivity
  • Modernize legacy systems with performance optimization, third-party integrations, and technical strategy
  • Train and mentor your team on modern development practices, elevating engineering culture