Illia Zub

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ABOUT ME

Engineering Director at serpapi.com

At SerApi, I manage a part of engineering and customer success teams, hired and mentored some of them; led marketing some efforts that increased MRR through developer relations; improved application performance and CI/CD; participated in multiple infrastructure upgrades; led the successful SOC 2 Type 2 attestation and an external pentest process; was hosting a video podcast; created turbo_tests Ruby gem (2M downloads in total, originally code extracted from Discourse and RubyGems); shared knowledge through #SerpApiPodcast and technical articles.

Prior to SerpApi, I sped up the CI/CD by 3 hours; introduced Webpack, Babel, linters, unit, and visual regression testing, shared this experience at local meetups; mentored teammates to do TDD.

I'm programming for 15 years professionally, and manage 10 people as of now.

Russian, Ukrainian, English

Kyiv (+03:00)

Joined March 2019

EXPERTISE

JavaScript

8 years experience

Sped up releases by 3 hours and freed up 1 TB in production. Migrated legacy JS to webpack and Babel. Helped SmileBack to introduce webp...

Sped up releases by 3 hours and freed up 1 TB in production. Migrated legacy JS to webpack and Babel. Helped SmileBack to introduce webpack.

PHP Es7 Es6 Es5 Test driven development Jest Unit Testing PuppeteerNode.js cluster

Test driven development

9 years experience

Introduced unit and visual regression testing at Together Networks, LLC. Mentored teammates to do TDD.

JavaScript Ruby on Rails Ruby

JavaScript Ruby on Rails Ruby RSpec Puppeteer Jest

Web Scraping

3 years experience

Building and maintaining serpapi.com. Sharing my knowledge: #SerpApiPodcast.

Data Engineering Puppeteer JavaScript

Data Engineering Puppeteer JavaScript Golang Python Ruby

REVIEWS FROM CLIENTS

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SOCIAL PRESENCE

GitHub

nokogiri-rust

Ruby FFI wrapper around scraper crate to be used instead of Nokogiri. Status: proof of concept.

HTML

parse-psd

Node.js PSD parser

CoffeeScript

Stack Overflow

1266 Reputation

Community Posts

How SerpApi sped up data extraction from HTML from 3s to 800ms (or How to profile and optimize Ruby code and C extension)

Optimization of Ruby C extension with help of Linux perf, gdb, pprof, rbspy, and kind people.

EMPLOYMENTS

Senior Software Engineer

Freelance

2019-06-01-Present

Helped SmileBack to integrate webpack to the development process and the build pipeline. Paired with CTO. Currently working on browser ...

Helped SmileBack to integrate webpack to the development process and the build pipeline. Paired with CTO. Currently working on browser automation for dropshippers.

Django

JavaScript

Webpack

Django

JavaScript

Webpack

Puppeteer

Senior Software Engineer

Together Networks Ltd

2014-12-01-2019-06-01

* Bring gray-box testing to the frontend: Jest for unit tests with jest-puppeteer for a kind of integration tests. Added execution of fro...

* Bring gray-box testing to the frontend: Jest for unit tests with jest-puppeteer for a kind of integration tests. Added execution of frontend tests to the release pipeline. Helping developers to write tests. * Saved 1.09 TB on production servers. * Implemented a cluster of build processes to create sprite images and compile *.less files in parallel. Due to this, the release time approximately decreased from 2 hours to 1 hour, so we can ship features and bug fixes faster. * Approximately decreased memory usage of sprite and *.less files build processes from 1.5G to 600M. Used node-heapdump, valgrind and llnode to perform profiling and analysis. * Migrated front-end code to Webpack and made a presentation about that transition at the local meetup. * Reduced amount of bugs in the custom build system. * Optimized build system performance by decreasing I/O calls from 14M to 1,3M. * Implemented I/O-optimized solution to build sprite images and almost I/O-optimized solution to compile Less files. * Done three huge refactorings of the build system. * Improved Yii's AssetManager by forbidding assets "publishing" during the web requests. * Integrated Google Tag Manager to the top websites of our company. Of course, with custom tags, variables, triggers and dimensions. * Performed code reviews. * Was a mentor of release engineer. * Participated in Jenkins integration.

PHP

Node.js

Backbone.js

PHP

Node.js

Backbone.js

React

JavaScript

Jest

Webpack

GraphQL

Puppeteer