Oleksandr

OLEKSANDR PROFILE
CHERKEZ Detail-oriented professional with over 5 years of
experience in iGaming, specializing in antifraud analysis,
Junior Go Backend technical support, and team leadership. Successfully
Developer | Clean transitioned to backend development, completing
Architecture Enthusiast intensive Go courses and building practical projects.
Eager to apply a strong analytical mindset, problem-
solving skills, and a passion for clean, efficient code in a
CONTACT junior Go backend developer role. Combines commercial
business acumen with fresh, dedicated technical
📍 Balti, Moldova expertise.

📧 PROJECT EXPERIENCE
[відкрити контакти](див. вище в блоці «контактна інформація»)

📞 [відкрити контакти](див. вище в блоці «контактна інформація») Product Catalog

🌐 t.me/cherkez_s github.com/HELL4GAET/product_catalog

A backend service for managing a product catalog
💼 linkedin - built with Go, featuring a modular layered
https://surl.li/hrlfav architecture (domain → service →
repository/adapters → transport).
💻 github.com/HELL4GAET Implemented CRUD operations for products and
users, input validation, and comprehensive error
handling.
TECH SKILLS Integrated JWT authentication, file uploads via
MinIO (presigned URLs), structured logging (zap),
and containerization with Docker Compose.
Languages & Tech: Utilized PostgreSQL for data persistence and
Golang provided OpenAPI documentation.

Tech Stack: Go · PostgreSQL · MinIO · JWT · Docker ·
Databases: OpenAPI
PostgreSQL, MongoDB,
MySQL URL Shortener

github.com/HELL4GAET/url-shortener
Storage: MinIO
A microservice for shortening URLs with a REST
API, generating short aliases, and providing
Auth & API: JWT,
statistics for each link.
OpenAPI (Swagger)
Tech Stack: Go · PostgreSQL · Docker · OpenAPI
Tools & DevOps:
Docker, Docker
Compose, Git, GitHub,
PROFESSIONAL EXPERIENCE
Postman, Jira,
Confluence Antifraud Payment Analyst
LANGUAGES PRO gaming software

Sep 2024 - Nov 2024 | Remote
Ukrainian (Native)
English (Intermediate) Analyzed withdrawal requests to detect fraudulent
Russian (fluent) activities (fraud, bonus abuse, multi-accounting).
Investigated logs of deposits, gaming sessions,
and transactions to identify suspicious user
EDUCATION behavior patterns.
Identified correlations between user accounts (IP,
devices, payment data) to uncover multi-account
Zaporizhzhia National
networks.
Technical University
Optimized the verification process by integrating
Bachelor's in Human Health
self-developed software, reducing average
2014 - 2018
analysis time without compromising accuracy.

DEVELOPMENT Team Lead L1/VIP Line

EDUCATION PIN-UP GLOBAL

Oct 2021 - Sep 2024 | Remote
HTML&CSS Javascript
course Built and managed a customer support team from
2022 the ground up: conducted interviews, onboarding,
training, mentoring, and performance reviews
Python software (one-to-one meetings).
Engineer course Organized workflow for operators, controlled task
2024 execution, and provided constructive feedback
based on quality assurance reports.
Go Software Engineer Collaborated with Payment and Support
Course departments for swift decision-making on payouts
Oct 2024 - May 2025 and blocks.
Maintained and created internal documentation
Advanced Go Course
and regulations in Confluence; worked with Jira
May 2025 - Present
ticketing system.
Self-Education &
Senior Moderator / Technical Support Manager
Mentoring
Oct 2024 - Present PIN-UP GLOBAL

Nov 2020 - Oct 2021 | Remote

Provided high-level technical support and product
consultation to clients.
Monitored communication channels for technical
issues, coordinated with relevant departments for
resolution, and moderated corporate social media.
Acted as a key point of contact for complex
queries and shift reporting.