Олександр

Oleksandr Vasyliev Profile
Senior Software Engineer | Tech
Lead Accomplished Technical Leader and Senior Software Engineer with 15+ years of
extensive experience driving engineering excellence and delivering high-
performance, scalable applications across gaming and enterprise sectors.
Proficient in C# (.NET) and TypeScript, with a solid reputation for bridging the gap
between business vision and complex technical execution.

Key areas of expertise include:
Technical Leadership & Stakeholder Management: Proven track record of
managing and mentoring engineering teams, accelerating professional
growth, and improving overall delivery speed. Expert in acting as the primary
technical point of contact for clients, effectively gathering requirements, and
managing expectations.
Personal details Architecture & Engineering: Strong background in designing robust system
blueprints, implementing core game logic architectures, and building custom
modular frameworks from scratch—including highly stable client-side payment
Oleksandr Vasyliev
frameworks and automated functional testing tools.
Process Optimization & Quality Standards: Passionate about engineering
[відкрити контакти](див. вище в блоці «контактна інформація»)
excellence, executing large-scale legacy code refactoring to improve
[відкрити контакти](див. вище в блоці «контактна інформація») maintainability, and resolving complex performance bottlenecks. Experienced
in streamlining onboarding and team alignment through standardizing
Vinnytsia, Ukraine comprehensive technical documentation.

September 13, 1986
Education
Ukrainian
Informational Technologies and Computer 2003 - 2008
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Engineering
vasyliev-001757101
National Technical University, Vinnytsia, Ukraine

Skills Employment
TypeScript
Tech Lead Jun 2021 - Jun 2026
JavaScript Playtika, Vinnytsia, Ukraine
Managing 3 developers in technical aspects (C#/TypeScript), accelerating
React their professional growth and improving overall team delivery speed.
Optimized the client-side payment framework, which significantly enhanced
C# (.NET) transaction stability and reduced processing latency (x5).
Renovated and standardized technical documentation for 10+ core features
System Architecture
and projects, reducing onboarding time for new team members.
OOP & Modular Architecture Designed technical solutions and system blueprints for upcoming features,
ensuring scalability and robust performance.
Separation of Concerns (SoC) Acted as the primary technical point of contact for clients, effectively gathering
requirements and aligning business needs with engineering solutions.
Mocha & Chai Developed and maintained an internal functional testing framework to
streamline integration testing and ensure high product stability before
TeamCity (Release Automation &
releases.
Test Execution)
Senior .NET Developer Apr 2015 - Jun 2021
ESLint & Prettier
Playtika, Vinnytsia, Ukraine
Code Review Standards Designed and implemented core architecture for slot machine games using
C#, ensuring performance and reliable game logic.
WebStorm & IntelliJ IDEA Established and monitored quality standards for visual resources and assets,
ensuring seamless integration with the game engine and optimal rendering.
Visual Studio & VS Code
Executed refactoring of legacy codebases, significantly improving code
 maintainability, scalability, and test coverage.
Cursor & Claude Code Identified and resolved complex bugs and performance bottlenecks.

Agile (Scrum / Kanban) .NET Developer May 2015 - Aug 2015
Twistrix
Developer Mentorship
Developed and maintained web application using ASP.NET framework,
Team Onboarding enhancing user experience and functionality.

Requirement Gathering Software Engineer Sep 2013 - Mar 2015
frog design, Vinnytsia, Ukraine
Stakeholder Management Developed modular and reusable UI components using WPF and the MVVM
architectural pattern, ensuring clean separation of concerns.
Client Communication Integrated third-party and external modules.
Identified and resolved UI/UX bugs and performance issues.
Technical Documentation
Software Engineer, Vinnytsia, Ukraine Aug 2009 - Aug 2013
System Documentation
Aricent
Designed and implemented modular test applications to validate and
Languages demonstrate core SDK capabilities.
Optimized text recognition algorithms, significantly improving text conversion
Ukrainian - Native accuracy and data processing quality.
Built and integrated custom internal tools to accelerate feature development
English - Upper Intermidiate and streamline workflows.
Refactored internal tooling and designed a modern CI/CD build system from
scratch utilizing NAnt scripts.
Hobbies Provided high-tier technical support, diagnosing complex issues and
translating client feedback into product features.
Football
Junior Software Engineer Aug 2006 - Aug 2009
Chess Flextronix, Vinnytsa, Ukraine
Designing parts of modules in C++.
Music Implementing pre-testing of new functionality.
Solving end-user problems.
Reading
Implementing support of specific APIs.
implementing UI components.