Мирослав

Myroslav Zozulia
Polyglot software engineer specializing in modernizing legacy
systems and building scalable products.

Lviv, Ukraine, EET | github.com/diwms | [open contact info](look above in the "contact info" section)

Work Experience
Software Engineer October 2022 – January 2026
Order Management System
Spearheaded the modernization of a legacy PHP/Symfony order system, managing the full lifecycle of upgrades, security patches, and
dependency updates.
Contributed to architectural design and implementation a scalable microservice using Kotlin, Spring Boot, AWS, Kafka, and
PostgreSQL.
Co-designed API architecture and drove the core backend implementation to ensure high performance and maintainability.
Executed the migration from legacy to modern stack, significantly enhancing system scalability and reducing technical debt.
PHP Symfony Kotlin Spring Boot Kafka PostgreSQL AWS

Team Lead October 2021 – September 2022
Digital Ecosystem
Led the development of a comprehensive Digital Ecosystem for an international corporation.
Orchestrated project planning and prioritization, ensuring development tasks aligned perfectly with strategic business goals.
Designed and integrated multiple complex APIs to enable seamless interaction between system components and microservices.
Enforced code quality standards by establishing best practices and conducting rigorous code reviews for maintainability.
PHP Laravel Redis Azure APIM GitLab MySQL

Software Architect April 2021 – September 2021
License Activation Service
Designed a custom crypto-validation protocol derived from C libraries to ensure secure, offline license verification on mobile
devices.
Enforced strict TDD practices, achieving 100% test coverage to guarantee stability in critical activation logic.
Authored comprehensive design documentation to standardize architectural patterns and facilitate knowledge transfer.
Configured and optimized CI pipelines using Azure DevOps Services to automate testing and deployment workflows.
Laravel C Cryptography TDD SQLite VueJS Azure DevOps

Software Engineer September 2019 – March 2021
Online Learning Platform
Developed scalable back-end components using PHP and Symfony, strictly adhering to a distributed microservices architecture.
Ensured system reliability by implementing a comprehensive testing strategy including unit, integration, and system-level tests.
Facilitated Agile delivery by actively participating in SCRUM ceremonies, including sprint planning, estimation, and retrospectives.
Maintained code quality through rigorous peer code reviews and collaboration with an international 8-person team.
PHP Symfony MySQL ReactJS

Software Engineer April 2015 – September 2019
Event Management Platform (German B2B)
Engineered an asynchronous background processing system using AWS SQS to reliably handle high-volume tasks such as image
processing, zip generation, and bulk email dispatch.
Developed a dynamic payment calculation interface using Knockout.js, creating a seamless management tool for complex B2B event
pricing.
Maintained and extended legacy components using Zend Framework and AngularJS, contributing to a scalable event management
platform for ticket sales and custom event pages.
Zend Framework Knockout.js AngularJS AWS Amazon SQS

Information on earlier projects can be provided upon request.