Andrey Stoev

ABOUT ME

Passionate about designing, implementing, and automating systems. Committed to excellence, growth, and delivering high-impact results. Recognized for professionalism, adaptability, and a solution-oriented mindset. Driven by a relentless ambition to outperform expectations and continuously raise the bar. I aim high, move fast, and never settle for average.

EXPERIENCE

Flutter International

Apr 2023 – Present

Java-Quant Developer

Develop the Java server
Find and resolve game logic issues
Provide solutions to problems of new game creation and development
Refines games by test playing and making changes based on gameplay
Supports the game development in all phases
Works on the platform integrations when needed
Create analytical and simulated game math models to determine game return to player (RTP) and capture vital statistics about the game's volatility profile
Collaborate with other teams through the creation of the game, to ensure that all elements of the design are in harmony
Develop and release the game math to development and staging servers, respectively
Provide detailed game statistics documents for development and release
Develop and maintain communication layers to platform and client
Tune the game values together with the Game Designer
Validate and simulate models to ensure they work as planned
Maintain a forced sequence module and provide guidelines for creating game predefined outcomes
CI/CD

Evolution Engineering

Mar 2022 – Feb 2023

Game-Math Designer

Balance the game probabilities and mechanics to create engaging and satisfying gameplay
Ensure the expected quality of the games
Research practical solutions to problems encountered in the creation of new games
Scripting and automating tools and providing solutions to complex problems
Analyse statistical data and provide it theoretically and empirically
Providing ways to implement complex game flow
Collaborate with the team lead and other software developers to plan, design, develop, test, and maintain solutions based on customizable Slot Framework and its infrastructure
Observe and foster code quality standards and agile software development methodologies

UNIVERSITY COURSES

Programming:

Modern Java Technologies
Operating Systems
Data Structures and Algorithms
Design and Analysis of Algorithms
Object Oriented Programming
Intelligent Systems (Data Mining)
Databases
Web Technologies
Web Application Development with Java
Programming with Swift
Languages and learning environments

Math:

Differential and Integral Calculus
Statistics and Empirical Methods
Differential Equations and their Applications
Complex Analysis
Operations Research
Linear Algebra

Software Engineering:

Distributed Software Systems
XML Technologies for Semantic Web
Analysis of Software Requirements
Computer Networks
Quality Assurance
Design and Integration of Software Systems
Human Machine Interface Design

Computer Science:

Discrete structures
Complexity and Computability

Advanced:

Finite Automata Applications
Fast Algorithms in Data Structures
Advanced Combinatorics and Graph Theory
Advanced Number Theory

... and more

OTHER COURSES

Java Fundamentals
Spring Fundamentals
Spring Advanced
Aspect Oriented Programming
Getting Started with Dropwizard
Liquibase Fundamentals
The Complete Python Pro Bootcamp (Udemy)

TECHNOLOGIES AND SKILLS

Java:

Java SE 11+
Spring Framework (Boot, Core, Data, MVC, Security)
Hibernate ORM, JPA
Thymeleaf
DB migrations (Flyway, Liquibase)
Dropwizard Framework

Python:

Flask, FlaskWTForms, jinja
SQLite, SQLAlchemy ORM
pandas, NumPy, scikit-learn
matplotlib, plotly, seaborn
tkinter

Databases:

MySQL, PostgreSQL, MSSQL Server
Redis (as cache)
Apache Kafka

Web Technologies:

HTML, CSS, JavaScript, jQuery
Bootstrap
PHP
XML, LaTeX

Other:

C, C++, Bash scripting
Unix/Linux systems
R, Matlab
Git, BitBucket, CI/CD
Agile methodologies (Scrum, Kanban)
Jira, ClickUp

QA AND TESTING

Unit, Integration and End-to-End tests
JLInit 5, Mockito
Selenium

SOME UNIVERSITY PROJECTS

SOME OTHER PROJECTS

PROJECTS FOR COMPANIES

Configurable Reel Set Generator

Tile proportion preserving reel sets generator for slot machines. Suitable for all payout strategies. Full configuration over tile shuffling, stack sizes, minimal distance for two tiles of same type in different stacks and weighted chance for stack choice. Additional shifting parameters and restrictions to serve the goals of each slot machine payout strategy.

Bonus Buy

Functionality that allows the purchase of a bonus. The functionality guarantees stochasticity with each spin that rewards the purchased bonus. It allows filtering of the spins that carry a purchased bonus, based on lower, upper and interval payouts, which allows configuration of the mean value of the purchase. The implementation is based on a highly configured manifest file that allows even the purchase of bonuses that are awarded based on some progress incremented from events in previous spins.