Oleg Khimich, Developer in Blois, France
Oleg is available for hire
Hire Oleg

Oleg Khimich

Verified Expert  in Engineering

Web Development Developer

Location
Blois, France
Toptal Member Since
February 17, 2015

Oleg has more than 15 years of experience in the IT industry. Before joining RingCentral, he was involved with a mobile game startup in partnership with the USPC, a branch of Jarden Corp. Prior to that, he went through a chain of his own startups, focused on a fusion of tech innovation, online marketing, and product sales. Oleg is passionate about technology, has an energetic mindset, and is always open to new technologies and knowledge.

Portfolio

RingCentral
PostgreSQL, RabbitMQ, MySQL, PHP, Amazon Web Services (AWS), Laravel...
Zeniz
Android, iOS, MySQL, PHP
MFA Monsters
Data Mining, Search Engine Optimization (SEO), MySQL, PHP

Experience

Availability

Part-time

Preferred Environment

Linux, Git, PhpStorm, MacOS

The most amazing...

...marketing research I've done is an analysis of the content from all international domains using a custom-built big data processing framework.

Work Experience

Technical Director

2012 - PRESENT
RingCentral
  • Led R&D as well as product architecture design and review along with performance optimizations.
  • Achieved a strategic goal of corporate standardization and innovation in the area of the software development process.
  • Developed an enterprise crash-reporter analytic system for receiving data, conducting analysis, and creating reports for corporate application software.
  • Optimized an existing web tracking system to achieve the goal for a request being served in <20ms.
  • Integrated a corporate-level content management system with Adobe Experience Manager.
Technologies: PostgreSQL, RabbitMQ, MySQL, PHP, Amazon Web Services (AWS), Laravel, Team Leadership, IT Audits, Moodle

Product Director/Engineering Manager

2011 - 2012
Zeniz
  • Led the iOS and Android development teams to develop a mass multiplayer mobile game.
  • Led the back-end developer group, who developed asynchronous back-end architecture with the help of the PHP Daemon framework. This allowed us to serve thousands of online players per computer node.
  • Integrated the workflow between the creative department and mobile UI development. Using QML, we've been able to overcome the issue with the plenty of different Android screen resolutions.
  • Coordinated marketing activities and put them on the analytic reports to estimate the performance of various market channels.
Technologies: Android, iOS, MySQL, PHP

Senior Systems Architect

2010 - 2011
MFA Monsters
  • Developed a custom content management system for serving content at hundreds of domains distributed on various dedicated hosting boxes.
  • Responsible for the core back-end and analytic tools with different sources of statistical data.
  • Built a graphic-intensive reports system that uses a data mining process.
  • Developed caching and failover techniques to maintain high availability and zero downtime for critical parts of the system.
Technologies: Data Mining, Search Engine Optimization (SEO), MySQL, PHP

Distributed Web Scraper

Using Amazon EC2, the framework allows to scrape. parse, and process the data to monitor competitors. This allows a company to incorporate dynamic pricing models into its business.

Increased Conversion Rate for Web Site

I designed and developed a multi-variant testing framework for a product sales website. According to external benchmarking, this allowed the site to outperform its competitors for 50% in sales. Overall, this increased the company's revenue up to 200%.

Languages

PHP, JavaScript, CSS, Python, C

Frameworks

Laravel, PHPUnit, Vuetify

Libraries/APIs

REST APIs, Vue 2, Vue, LinkedIn API, Facebook API, Salesforce API

Tools

NGINX, RabbitMQ, VMware, Moodle, Git

Paradigms

Kanban, Agile Software Development, Database Design, Business Intelligence (BI), Data Science, Change Management, Search Engine Optimization (SEO)

Industry Expertise

Project Management

Storage

Database Modeling, Database Performance, MySQL, MariaDB, Database Replication, Memcached, Redis, PostgreSQL, MongoDB

Other

Performance Optimization, Front-end, Content Management Systems (CMS), Data Analysis, Data Mining, Technical Project Management, Product Management, Product Development, Web Development, Back-end Development, Team Leadership, IT Audits, Due Diligence, Big Data, Lean Development, Lean Startups

Platforms

MacOS, Ubuntu, Amazon Web Services (AWS), iOS, Android, Linux

2007 - 2009

Master's Degree in Business Administration

IBR-Institute (Steinbeis-Hochschule-Berlin) - Germany

1998 - 2002

Master's Degree in Computer Science

Odessa National Academy of Telecommunications - Ukraine

1994 - 1998

Bachelor's Degree in Computer Hardware Engineering

Odessa Technical College - Ukraine

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.

1

Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.
2

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.
3

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring