Senior Back-end Engineer - Korean Online Gaming & Betting Platform
backend leadership architecture
Backend Systems / Financial Platforms / Elasticsearch / UML Architecture
Aug 2025 - Present. Design and maintain backend services for deposits, withdrawals, wallet operations, betting workflows, and customer account management. Contribute to modernization from legacy systems into service-oriented architectures, Elasticsearch-powered operational search, production troubleshooting, code reviews, mentoring, and systems supporting more than $1M USD in monthly business activity.
Mid III Back-end developer - Real Estate Technology Company
backend leadership
CRM / Lead Acquisition / Automation / Technical Leadership
Dec 2021 - Apr 2025. Designed a centralized CRM platform for sales, marketing, and lead management. Built a lead acquisition ecosystem connecting landing pages, marketing campaigns, CRM workflows, and third-party providers, with automation for campaigns, customer management, reporting, recruitment interviews, mentoring, architecture decisions, and production support.
Contract Project - UK Enterprise Technology Platform
architecture leadership
Legacy Modernization / Architecture / UML Architecture
Jan 2023 - Aug 2023. Project-based contract delivered alongside the full-time Real Estate Technology Company role with employer consent. Led modernization of a legacy monolithic platform into software architecture, defining service boundaries and communication patterns while reducing technical debt and improving maintainability, scalability, and long-term engineering productivity.
Contract Project - Italian Technology Platform
backend
Python / FastAPI / DynamoDB / Cloud Native
Mar 2024 - Sep 2024. Project-based contract delivered alongside the full-time Real Estate Technology Company role with employer consent. Developed backend services using Python, FastAPI, and DynamoDB. Built scalable content distribution solutions used by European clients within cloud-native and API-driven architectures.
Back-end Developer - Port & Logistics Technology Project
backend
Laravel / Enterprise Systems / Logistics
Jun 2021 - Dec 2021. Developed and maintained subscriber management platforms and customer-facing business applications. Built Laravel-based enterprise solutions supporting operational workflows and business users.
Web Developer - Digital Solutions & Web Development
web backend
PHP / SQL / CMS / JavaScript
Jun 2019 - May 2021. Developed CMS solutions, websites, landing pages, and database-driven applications. Built full-stack web solutions using PHP, SQL, HTML, CSS, and JavaScript while working directly with business stakeholders.
French E-commerce Platform
web backend
PHP / Laravel / Payment APIs
Delivered a complete e-commerce platform in 3 months, including secure payment processing, inventory management, and production-ready business workflows.
Multi-vendor E-commerce (Dubai)
web backend
PHP / MVC / REST APIs / Payment Gateways
Built a comprehensive multi-vendor e-commerce platform with integrated payment gateways and REST APIs for a Dubai media and marketing business.
Web & Mobile E-commerce - Lebskom
web backend leadership
PHP / LAMP Stack / SOLID / Mobile Integration
Led ground-up development of Lebskom web and mobile e-commerce platform, using SOLID principles and maintainable backend architecture.