Aug 2017 – Dec 2017 · 4 mos

• ➤ Coordinated work across a team of 3 developers;
• ➤ Performed deep analysis of the project and situation;
• ➤ Determined all causes of a poor system performance;
• ➤ Developed a consequential project enhancement plan;
• ➤ Created a working POC as a proof of all my concepts;
• ➤ Completely reworked data structured and data flow;
• ➤ Algorithmically reduced system response time 50-fold;
• ➤ Algorithmically reduced resource consumption 5-fold;

Sep 2015 – Aug 2016 · 11 mos

• ➤ Handled all communications with the customer;
• ➤ Lead and managed a team of 10 developers;
• ➤ Developed most critical architectural decisions;
• ➤ Significantly improved application performance;
• ➤ Delivered 10 features over 13 releases on time;
• ➤ Improved team workflow and implemented CI;

Aug 2015 – Oct 2015 · 2 mos

• ➤ Took charge for a project with a breaking deadlines;
• ➤ Performed a thorough project and situation analysis;
• ➤ Coordinated work across the team of 12 developers;
• ➤ Established a healthy relationships with the customer;
• ➤ Agreed a one-month delay for the final delivery;
• ➤ Restructured and reused existing work to the full;
• ➤ Delivered final release on time, saved whole account;

Jul 2015 – Sep 2015 · 2 mos

• ➤ Designed and implemented a core architectural solution for authorizing a high traffic;
• ➤ Designed and developed ACL (access control list) administrator panel;

Dec 2013 – Jun 2014 · 6 mos · San Francisco Bay Area

• ➤ Optimized Skype’s JavaScript-based ads-rotation app;
• ➤ Eliminated multiple memory leaks for old versions of IE;
• ➤ Fixed excessive memory and CPU consumption;
• ➤ Created complete test coverage (unit & functional tests);
• ➤ Designed and developed a caching error analytics panel;
• ➤ Worked on multiple Skype’s high-traffic chat bots;

Aug 2012 – Nov 2012 · 3 mos

• ➤ Built a coordination system for medical transportations;
• ➤ Used SPA approach, which increased application performance;
• ➤ Performed network load optimizations for shorter load times;
• ➤ Optimized client/server communication protocols for speed;
• ➤ Did not use dependencies to precisely control performance;
• ➤ Provided all accompanying project documentation on launch;

Apr 2012 – Jul 2012 · 3 mos

• ➤ Developed an automated system for the GMAT test preparation;
• ➤ Implemented test application and subscription management panel;
• ➤ Test application UI/UX completely replicated original GMAT test;
• ➤ Integrated PayPal API for fully automatic payment processing;
• ➤ Optimized client-side application for low resource consumption;
• ➤ This application is still used at GMAT Club;

Oct 2011 – Mar 2012 · 5 mos

• ➤ Completely redesigned existing PBX modules UI, improved UX;
• ➤ Performed a complete security audit of the system;
• ➤ Discovered and eliminated critical security vulnerabilities;
• ➤ Provided full accompanying documentation before leave;

Jun 2004 – Dec 2005 · 1 yr 6 mos

• ➤ Developed a corporate-scale print-server with barcode printing;
• ➤ Implemented IPP protocol from the ground up, based on RFC2565;
• ➤ Implemented multiple RFC specifications for barcode printing;
• ➤ Performed various system cross-platform optimizations (Windows);
• ➤ Created a convenient web-based print-server management interface;
• ➤ Created an installer project for creating setup wizard packages;

Aug 2003 – Jun 2004 · 10 mos

• ➤ Developed a system for running automated SMS games and services;
• ➤ Implemented generic interface for fast service development;
• ➤ Implemented HTTP (RFC 2616) and SMTP protocols (RFC 821 & 822);
• ➤ Integrated SMS gateway APIs of all major mobile providers;
• ➤ Provided extensive project documentation before leave;

Aug 2001 – Aug 2003 · 2 yrs

• ➤ Programmed web application backend using Active Server Pages;
• ➤ Created XML/XSL transformations behind the system web interface;