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Abrashyn O. PHP, MySQL and FinTech Platforms

My name is Abrashyn O. and I have over 10 years of experience in the tech industry. I specialize in the following technologies: PostgreSQL, MongoDB, OpenCart, MySQL, PHP, etc.. I hold a degree in , . Some of the notable projects I’ve worked on include: πŸ”„ Microtransaction Platform for E-Wallets, πŸ’΅ Multi-Currency Payment Processor, πŸ’Ό Digital Wallet with Real-Time KYC, πŸ“Š Subscription Management System for Fintech, πŸ”’πŸ’³ Secure Payment Gateway Integration Platform. I am based in Warsaw, Poland. I've successfully completed 5 projects while developing at Softaims.

My expertise lies in deeply understanding and optimizing solution performance. I have a proven ability to profile systems, analyze data access methods, and implement caching strategies that dramatically reduce latency and improve responsiveness under load. I turn slow systems into high-speed performers.

I focus on writing highly efficient, clean, and well-documented code that minimizes resource consumption without sacrificing functionality. This dedication to efficiency is how I contribute measurable value to Softaims’ clients by reducing infrastructure costs and improving user satisfaction.

I approach every project with a critical eye for potential bottlenecks, proactively designing systems that are efficient from the ground up. I am committed to delivering software that sets the standard for speed and reliability.

Main technologies

  • PHP, MySQL and FinTech Platforms

    10 years

  • PostgreSQL

    8 Years

  • MongoDB

    2 Years

  • OpenCart

    8 Years

Additional skills

  • PostgreSQL
  • MongoDB
  • OpenCart
  • MySQL
  • PHP
  • Laravel
  • Payment Gateway Integration
  • PSD to CMS
  • Symfony
  • SOAP
  • Cryptocurrency
  • RESTful API
  • FinTech
  • Stripe API
  • PayPal Integration
  • PSD to HTML
  • Yii2

Direct hire

Potentially possible

Previous Company

ING Bank ŚlΔ…ski

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Experience Highlights

πŸ”„ Microtransaction Platform for E-Wallets

Developed a scalable platform for secure wallet operations, enabling high-frequency microtransactions. The platform includes AML compliance checks, real-time notifications, and API integrations for seamless third-party merchant transactions. The project is under NDA, so code and links cannot be shared.

πŸ’΅ Multi-Currency Payment Processor

A high-performance payment processor capable of handling over 10,000 transactions per second. Designed for scalability and seamless integration with leading payment systems.

πŸ’Ό Digital Wallet with Real-Time KYC

A secure digital wallet platform offering real-time balance updates, transaction history, and KYC integration. This project ensured compliance with AML standards while providing seamless user experiences. πŸ›‘οΈ

πŸ“Š Subscription Management System for Fintech

A subscription billing platform enabling automated invoicing, dunning management, and seamless payment provider integrations. Optimized for recurring payments, this project streamlined billing processes, enhancing efficiency and user satisfaction. πŸš€

πŸ”’πŸ’³ Secure Payment Gateway Integration Platform

Developed a robust payment gateway integration platform enabling fintech companies to process transactions securely and comply with Visa/MasterCard standards. The platform supports multiple payment methods, including Crypto, APM, and traditional card payments. Features include multi-currency support, fraud detection, and real-time transaction tracking. The project is under NDA, so I cannot share the code or links.

Education

  • Kharkiv Radio-Engineering College

    in web-development

    2010-01-01-2014-12-01

  • Kharkiv National University of Radioelectronics

    in web-development

    2014-01-01-2017-12-01

Languages

  • English
  • Russian
  • Ukrainian

Personal Accounts