Oleg Khimich

Odessa, Odessa Oblast, Ukraine

Member since December 31, 2014

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

Oleg is now available for hire

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Portfolio

RingCentral
Qt, C++, QML, PHP, Yii, MySQL, RabbitMQ, PostgreSQL, MySQL Galera
Zeniz
PHP daemon, MySQL, FreeBSD, iOS, Android
MFA Monsters
FreeBSD, PHP, Apache, MySQL, SEO, Data mining, JpGraph

Experience

Apache, 17 years
PHP, 17 years
MySQL, 17 years
Technical Project Management, 10 years
Product Management, 10 years
Data Science, 5 years
Agile Software Development, 4 years
Big Data, 3 years

Availability

Part-time

Preferred Environment

MacOS, PhpStorm, Git, Linux

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.

Employment

Technical Director
RingCentral
2012 - PRESENT
- 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: Qt, C++, QML, PHP, Yii, MySQL, RabbitMQ, PostgreSQL, MySQL Galera
Product Director/Engineering Manager
Zeniz
2011 - 2012
- 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: PHP daemon, MySQL, FreeBSD, iOS, Android
Senior Systems Architect
MFA Monsters
2010 - 2011
- 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: FreeBSD, PHP, Apache, MySQL, SEO, Data mining, JpGraph

Experience

Distributed Web Scraper (Development)
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 (Other amazing things)
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%.

Skills

Languages
PHP, HTML, JavaScript, Python, C
Frameworks
Laravel, PHPUnit, Yii, Codeception, Smarty, Yii 2, AngularJS
Libraries/APIs
Amazon API, REST API, Salesforce API, RADIUS, Facebook API, LinkedIn API
Tools
Amazon CloudFront CDN, Composer, phpMyAdmin, Apache, Nginx, php-fpm, cURL Command Line Tool, VMware, RabbitMQ, OpenVPN, Sumo Logic, Tableau, GCC
Paradigms
Kanban, Database Design, Agile Software Development, Waterfall Development, Data Science, Change Management
Platforms
AWS EC2, FreeBSD, Mac OS, CentOS, Ubuntu
Storage
SQLite, MySQL, AWS S3, Database Performance, Database Modeling, Memcached, Database Replication, MongoDB
Other
Content Management Systems (CMS), Performance Optimization, Front-end, Back-end Development, Web Development, Product Development, Product Management, Project Management, Technical Project Management, Data Mining, Data Analysis, Lean Startups, BIND9, Lean Development, Big Data, Business Intelligence (BI), PHPDoc, VMware ESXi

Education

Master's degree in Business Administration
IBR-Institute (Steinbeis-Hochschule-Berlin) - Germany
2007 - 2009
Master's degree in Computer Science
Odessa National Academy of Telecommunications - Ukraine
1998 - 2002
Bachelor's degree in Computer Hardware Engineering
Odessa Technical College - Ukraine
1994 - 1998

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