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Senior Software Engineer · Anduril

Arthur
Zhuk.

Complex systems.
Human experiences.

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01 / THE WORK

Built for the
real world.

Over a decade across defense, healthcare, SaaS, and DeFi. Different domains. The same care for how things work.

3×

Faster release cadence

Travel Syndicate Technology
55%

Fewer slow queries

Insight Rx · MongoDB modernization
10k+

Users of products I helped build

Procore · Quality & Safety
CASE STUDIESTHE PROBLEM. THE WORK. THE RESULT.
01Insight Rx

Upgrading MongoDB across four major versions

The problem
A healthcare precision-dosing platform was running on an aging MongoDB, a ten-year-old AngularJS frontend, and untyped JavaScript.
What I did
Executed the MongoDB upgrade across four major versions, then modernized the surrounding stack: JavaScript to TypeScript, and AngularJS to React.
  • 55%fewer slow queries
  • ~180fewer Sentry errors per month
  • 35%fewer P0/P1 incidents
  • 12 → 4days of cycle time
02Travel Syndicate Technology

One React architecture for Hotel, Itinerary, and Manual Booking

The problem
Legacy Ember and React code lived side by side across 6 repos and 10 engineers, with duplicated logic, weekly releases, and slow incident mitigation.
What I did
Migrated to a single React architecture, gated releases on E2E checks, improved alerting, and added PostHog analytics to see how the product was used.
  • 30%less duplicated logic across 80 modules
  • 35%fewer production regressions
  • 1× → 3×releases per week
  • 45 → 15minutes to mitigate incidents
03Procore

Letting teams ship in parallel on a Rails monolith

The problem
The Quality and Safety suite was built into a Rails monolith, with a slow Webpack pipeline and JavaScript that shipped runtime bugs.
What I did
Decoupled the monolith into micro-frontends for parallel development, tuned the Webpack pipeline, and shipped Action Plans as the first TypeScript product.
  • 20 → 5minutes of CI build time
  • 40%fewer runtime bugs in Action Plans
  • 25major features across six products
  • 500+companies using them
SELECTED EXPERIENCE2010 — PRESENT
01
AndurilCURRENTSenior Software Engineer
May 2026 - Present

Building mission-critical software as a Senior Software Engineer in a high-accountability defense technology environment.

  • Contributing to production software where reliability, system correctness, and operational clarity matter
  • Applying senior fullstack and backend engineering experience across API design, data flow, and maintainable system architecture
Backend SystemsSystem DesignTypeScriptReliability
02
Travel Syndicate TechnologySenior Software Engineer
Feb 2025 - Apr 2026

Own architecture for Hotel, Itinerary, and 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 the first 3 months
  • Migrated legacy Ember + React to a unified React architecture, cutting duplicated logic by 30% across 80 modules
  • Reduced production regressions by 35% by gating releases on E2E checks
  • Improved release velocity from once per week to three times per week in the first 90 days
  • Shortened mitigation time from 45 minutes to 15 minutes via improved alerting
ReactTypeScriptPostHogE2E Testing
03
Insight RxSenior Software Engineer
Dec 2023 - Feb 2025

Led fullstack modernization for a healthcare precision dosing platform, shipping enterprise features across the entire stack.

  • Designed the Product Features module unlocking seven enterprise workflows and five new drug modules
  • Modernized JavaScript to TypeScript, reducing Sentry errors by roughly 180 per month and cutting P0/P1 incidents by 35%
  • Executed a MongoDB upgrade across four major versions, reducing slow queries by 55%
  • Replaced a 10-year AngularJS frontend with React, cutting cycle time from 12 to 4 days
ReactTypeScriptMongoDBNode.jsExpress
02 / THE PERSON

There’s more
to the story.

Curiosity doesn’t switch off when the laptop closes. You’ll find me exploring on two wheels, on the ice, trying a new recipe, or building something just to see where it goes.

A LITTLE SOMETHING DIFFERENT

Arthur of Silver Lake Original AI soundtrack

01

The long way home.

Road biking & getting outside

02

One more experiment.

AI, blockchain & side projects

03

A competitive streak.

Hockey, basketball & gaming

03 / WHAT’S NEXT?

Good things start
with a conversation.

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