Arthur Zhuk

Senior Fullstack Engineer

Building high-performance interfaces and scalable backend architectures for complex, data-heavy products.

About

I'm a Senior Fullstack Engineer with over a decade of experience building web applications across enterprise, healthcare, DeFi, and accessibility tech. I specialize in creating responsive, high-performance user interfaces while also designing scalable APIs and cloud-native backend systems that teams can maintain and extend.

Currently, I serve as UI Tech Lead at Travel Syndicate Technology, where I own the UI architecture for Hotel, Itinerary, and Manual Booking surfaces—setting standards for performance, state management, and release quality across multiple engineering teams.

Previously, I've modernized legacy codebases and executed major backend upgrades—including a MongoDB migration across 4 major versions at Insight Rx. I've also shipped mobile apps at Rainmaker, built DeFi protocol features at Saddle Finance, and started my career in DevOps at Microsoft and Boeing.

I leverage AI-accelerated development daily—using tools like Cursor, Claude Code, and Wispr Flow to prototype features, refactor code, and improve test coverage faster.

Experience

Feb 2025 — Present

Senior Software Engineer (UI Tech Lead) · Travel Syndicate Technology

Remote

Own UI architecture for Hotel/Itinerary/Manual Booking surfaces; set standards for performance budgets, state management, and release quality across 10 engineers and 6 repos.

  • Implemented PostHog analytics resulting in 1M+ tracked events in first 3 months
  • Migrated legacy Ember + React to unified React architecture, cutting duplicated logic by 30% across 80 modules
  • Reduced production UI regressions by 35% by gating releases on E2E checks
  • Improved release velocity from 1/week to 3/week in first 90 days
  • Shortened mitigation time from 45 minutes to 15 minutes via improved alerting
  • React
  • TypeScript
  • PostHog
  • E2E Testing
Dec 2023 — Feb 2025

Senior Software Engineer · Insight Rx

San Francisco, CA (Remote)

Led frontend modernization for a healthcare precision dosing platform, shipping enterprise features and reducing technical debt.

  • Designed 'Product Features' module unlocking 7 enterprise workflows and 5 new drug modules
  • Modernized JS to TypeScript, reducing Sentry errors by ~180/month and cutting P0/P1 incidents 35%
  • Executed MongoDB upgrade across 4 major versions, reducing slow queries by 55%
  • Replaced 10-year AngularJS frontend with React, cutting cycle time from 12 to 4 days
  • React
  • TypeScript
  • MongoDB
  • Node.js
Aug 2023 — Oct 2023

Senior Software Engineer · Rainmaker (YC2022)

Brooklyn, NY (Remote & Contract)

Built React Native mobile wallet features enabling seamless dApp interoperability.

  • Engineered React Native WalletConnect integration supporting ERC4337 wallets
  • Re-architected navigation with Expo Router, improving deep-link success from 75% to 98%
  • React Native
  • Expo
  • WalletConnect
Nov 2021 — Dec 2022

Senior Software Engineer · Saddle Finance

San Francisco, CA (Remote)

Built DeFi-specific features for a decentralized exchange protocol, enabling permissionless and multi-chain compatibility.

  • Implemented Permissionless Pools, Cross Chain Gauges, and Token Vesting
  • Boosted release confidence with Cypress E2E + Hardhat coverage
  • Cut production hotfixes by ~50% with comprehensive test coverage
  • React
  • Ethers.js
  • Cypress
  • Hardhat
  • DeFi
Aug 2018 — Nov 2021

Software Engineer · Procore

Carpinteria, CA

Led development of React products in the Quality & Safety suite, shipping major features used by 500+ companies.

  • Developed 6 React products with 25 major features for 10k+ users
  • Shipped 'Action Plans' as first TypeScript product, cutting runtime bugs by 40%
  • Decoupled Rails monolith into micro-frontends for parallel development
  • Optimized Webpack pipeline, cutting CI build times from 20 to 5 minutes
  • React
  • TypeScript
  • Redux
  • Webpack
  • Micro-frontends
May 2017 — Jun 2018

Software Engineer · Aira

San Diego, CA

Developed features for an ElectronJS dashboard serving visually-impaired users.

  • Built real-time metrics, live camera feeds, and system alerts dashboard
  • Integrated Google Maps + Uber/Lyft workflows, improving user satisfaction by ~30%
  • Vue
  • Electron
  • Node.js
  • Google Maps API
Feb 2010 — Nov 2015

DevOps Engineer · Microsoft & Boeing

Redmond, WA

Automated infrastructure deployments for enterprise systems.

  • Reduced change failure rate by 25%
  • Decreased mean time to recovery (MTTR) by 40%
  • DevOps
  • Infrastructure
  • Automation

Skills

Languages

TypeScriptJavaScriptPython

Frontend & Mobile

ReactNext.jsExpo React NativeTanStack QueryReact Router 7ReduxTailwindCSSShadcn UIElectronEthers.jswagmi

Backend & Cloud

Node.jsExpress.jsPostgreSQLMongoDBMySQLGraphQL

DevOps & Infrastructure

GCPAWSCI/CDCloud Deployments

AI-Accelerated Development

CursorClaude CodeWispr Flow

Education

42 Silicon Valley

Fremont, CA

C Systems, Algorithms, and Data Structures

2016 — 2017

Highline Community College

Des Moines, WA

A.S. Computer Science

2010

Frontend Masters

Advanced JavaScript Courses

Ongoing

Contact

I'm always interested in hearing about new opportunities, challenging projects, or just connecting with fellow engineers. Feel free to reach out!

arthurzhuk@gmail.comLinkedInGitHub
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