Igor Markov Email & Phone Number

Serbia

Batumi, Georgia

* Rewrote song data import service (VB.NET to C#), improving performance by ~10x (10K rows, 10s to 1s) via batch processing* Migrated admin website frontend (Razor Pages + JavaScript to Blazor), reducing UI development time for new features by 2x* Single-handedly supported legacy application ($1B+ in royalties over 10 years), reducing maintenance cost by 30% and the number of critical errors by 40% by refactoring multiple legacy modules * Reduced new clients onboarding time (e.g.… Show more * Rewrote song data import service (VB.NET to C#), improving performance by ~10x (10K rows, 10s to 1s) via batch processing* Migrated admin website frontend (Razor Pages + JavaScript to Blazor), reducing UI development time for new features by 2x* Single-handedly supported legacy application ($1B+ in royalties over 10 years), reducing maintenance cost by 30% and the number of critical errors by 40% by refactoring multiple legacy modules * Reduced new clients onboarding time (e.g., deploying new tenants, loading historical data, etc.) by ~2,5x (~2.5 to ~1mo)* Fixed 50+ legacy application business logic bugs, reducing often debugging SQL stored procedures 3K+ lines longStack: C#, VB.NET, JavaScript, MS SQL Server, Amazon S3, Docker Show less

Moscow, Russia

* Co-developed and launched candidate personal data processing service, saving hundreds of HR department human hours/month* Co-designed and co-developed interactive employee turnover dashboard, allowing managers to monitor headcount metrics and freeing staff from repetitive tasks of manually compiling employee turnover reports every month* Designed and developed 4K video streaming API for company's corporate portal (previously limited to 480p), allowing employees to watch videos (e.g.… Show more * Co-developed and launched candidate personal data processing service, saving hundreds of HR department human hours/month* Co-designed and co-developed interactive employee turnover dashboard, allowing managers to monitor headcount metrics and freeing staff from repetitive tasks of manually compiling employee turnover reports every month* Designed and developed 4K video streaming API for company's corporate portal (previously limited to 480p), allowing employees to watch videos (e.g., conferences, interviews, etc.) in news feed in high resolution with 30% less latency* Maintained company portal, used by 10K employees for things like creating electronic requests for vacations and business trips, receiving salary slips, viewing company news, etc.Stack: C#, JavaScript, React, MS SQL Server Show less

Voronezh, Russia

* Improved Salesforce and EnGlobe integrations by expanding data model and fixing errors, resulting in better data consistency across systems and reduced synchronization errors by ~80%* Developed reusable components shared library, reducing duplicate code across projects by ~5%* Optimized SQL queries, resulting in 30% reduction in database response times, improving overall system performance* Wrote unit tests, increased code coverage by ~15% (60% to 75%)Stack: C#… Show more * Improved Salesforce and EnGlobe integrations by expanding data model and fixing errors, resulting in better data consistency across systems and reduced synchronization errors by ~80%* Developed reusable components shared library, reducing duplicate code across projects by ~5%* Optimized SQL queries, resulting in 30% reduction in database response times, improving overall system performance* Wrote unit tests, increased code coverage by ~15% (60% to 75%)Stack: C#, JavaScript, MS SQL Server Show less

Master'S Degree, Mechanics And Mathematical Modeling

Bachelor'S Degree, State And Municipal Administration

Fellow

Outtalent is a fellowship program for outstanding software engineers. The program provides state-of-the-art instruction on distributed.