Uber

- Working on Michelangelo UX — Uber’s E2E Machine Learning platform
- Delivered a backend-driven Uber Incentives Manager web app to allow ops to manage drivers' incentives

Senior Software Engineer

- Launched Uber Incentives web app that helps drivers to track their incentives

Software Engineer

EPAM Systems

Project: ConstructConnect (iOS app)
Role: React Native Developer
Technologies: React Native, Jest
Responsibilities: In this project I've switched to new (to me) technology and I was responsible for iOS app development based on React Native. I mostly worked on search UI functionality.

Project: Privalia (Spanish online fashion outlet)
Role: Team Lead
Technologies: PHP, MySQL, Silex, Vagrant, PHPUnit, Kafka
Responsibilities: I was leading Checkout and Basket related micro-service teams. I was responsible for delivery of Checkout and Basket related API endpoints including payment integrations with Adyen and PayPal. One of the main challenges there was integration with others micro-services as Search, SSO, Auth, Message Bus and so on. These difficulties has been overcame by actively using Test Driven Development, Domain-driven code separation and SOLID principles.

Lead Software Engineer

Project: Thomson Reuters Developers Portal 
Role: Key PHP/Drupal developer
Technologies: Drupal 7, Vagrant, Behat/Mink/Selenium
Responsibilities: I implemented multi-level, group-subgroups-based, content-type-sensitive, field-type-sensitive user access control to web-site content. My solution with OrganicGroups set of modules (OG, OG Subgroups, OG Field Access) gave my customer the possibility to integrate and use very granular and complex content-access logic.

Project: New York Fashion Week (NYFW)
Role: Key PHP/Drupal developer
Technologies: Drupal 7, Varnish, Vagrant
Responsibilities: I've developed RESTful endpoints for Drupal content types to be consumed by iOS and Android mobile applications. Those endpoints had Varnish caching layer and token based authentication.

JYSK

Role: Drupal Developer
Technologies: Drupal 7, MySQL, Varnish
Responsibilities: My colleague and I we have launched e-commerce platform for JYSK (Danish retail chain) based on Drupal 7. Now this web-site is selling goods online in more than 18 countries. I was responsible for front-end (templating) and back-end Drupal development (Click&Collect functionality, periodic catalog imports etc).

Drupal Developer

Siteprom

Role: Project Manager, Full-stack Web-Developer
Technologies: PHP, MySQL, JavaScript, jQuery, HTML, CSS
Responsibilities: I've managed the projects from start to "Go Live" and also was responsible for back-end and front-end development as well as for projects promotion (SEO, SMO). As a result we with my companion have launched 30+ web-sites for our clients.

Owner

Web-studio "Tochka"

Role: Full-stack web-developer
Technologies: PHP, MySQL, JavaScript, jQuery, HTML, CSS
Responsibilities: I was responsible for client-side (HTML, JavaScript, jQuery, CSS) and server-side (PHP, MySQL) programming of the Studio's web-sites. I've created custom-made CMS system that we were using in many Studio's projects afterwards. That speed up our development process during that times.

Web Developer

Kharkiv National University of Radioelectronics

I've volunteered to manage faculty web-site (it was mostly about front-end development connected to HTML and CSS).

Assistant

• Senior software engineer (currently @ UBER)
• 15+ years of full-stack software engineering experience, including lead/senior software engineering roles
• 22+ open-sourced repositories on GitHub (author of 180K+ ★ repo, with a total of 240K+ ★ across all my repositories)
• 8+ times on the HackerNews homepage with links to my projects and publications
• 30+ projects and 2 startups delivered 0→1 from system design (ERDs/RFCs) to production
• Most recent specialization: Fullstack, JavaScript / TypeScript (React), Node.js, Python (for ML), micro-services
• Living in Amsterdam. From Ukraine 🇺🇦

My okso.app is built using tldraw as a core. The tldraw library and the web app itself https://www.tldraw.com arguably is the best in class infinite and collaborative whiteboard out there, with sooo much attention do the details and user experience. The pen (the digital ink) implementation is a separate topic and it’s just a joy to my eyes. Thanks Steve Ruiz and the team for building this, it’s awesome!

Oleksii Trekhleb

Senior Software Engineer @ Uber. Author of 180k ★️ javascript-algorithms repository on GitHub.

We just landed this month’s 4.2.0 release of the tldraw SDK. This release brings: custom transports for our multiplayer library, the ability to register additional tools at runtime, a secret new fill style, and more.

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