Maksym

MAKSYM PAVLIIENKO
PHP Backend Developer
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) Kyiv, Ukraine

SUMMARY
Senior Backend Developer with 20+ years of software development experience, including 12+ years of PHP development
using Laravel, Yii, and MySQL. Experienced in backend architecture, REST API development, database optimization,
legacy system modernization, and Docker-based environments. Proficient in SOLID principles, GoF design patterns,
Domain-Driven Design, clean architecture, and automated testing. Experienced in AI-assisted software development
using Claude, OpenAI Codex, Cursor, Claude Code, Specification-Driven Development (SDD), and OpenSpec. Previous
experience includes C/C++, Qt desktop applications, embedded software, and industrial control systems.
EXPERIENCE

PHP Developer - Newfold Digital Nov 2021 - Present
 Develop and maintain backend web applications using PHP 8, Laravel 9-12, and MySQL.
 Design and implement REST APIs and backend services.
 Optimize database queries and improve application performance.
 Modernize and migrate legacy code to current Laravel versions.
 Apply SOLID principles, GoF design patterns, clean-code practices, and automated testing.
 Work with Docker-based development environments and CI/CD pipelines.
 Use Claude, OpenAI Codex, Cursor, Claude Code, OpenSpec, and SDD for analysis, implementation, code review, and
refactoring.
 Participate in technical analysis, code reviews, and architectural decision-making.
PHP Developer - Turbobit.net Oct 2019 - 2021
 Maintained and developed a high-load service used by millions of users.
 Designed and implemented REST API endpoints and backend integrations.
 Integrated payment systems and external services.
 Optimized SQL queries and backend performance.
 Worked with PHP 7/8, Laravel 8, MySQL, Docker, and Git.
PHP Developer - TechFunder Sep 2015 - Oct 2019
 Developed and supported backend applications for startup products.
 Designed application architecture and implemented business logic.
 Built integrations with third-party services.
 Worked closely with product and marketing teams.
 Maintained and improved existing PHP applications.
PHP Developer - Freelance Apr 2012 - Aug 2015
 Developed web applications using PHP, Yii, Yii2, and MySQL.
 Designed and implemented REST API services.
 Developed backend functionality for e-commerce and analytics platforms.
 Maintained and modernized existing applications.
Software Engineer, Qt/C++ - ICC Impulse Oct 2010 - Apr 2014
 Developed desktop applications using C++, Qt, and SQL.
 Built cross-platform software for Windows and Linux.
 Implemented user interfaces, business logic, and hardware integrations.
Software Engineer - SNPO Impulse Aug 2004 - Apr 2010
 Developed control-system and inter-controller communication software.
 Created desktop applications using C and C++ for Windows and Linux.
 Developed embedded software using Assembler for microcontrollers.
 Participated in the design and implementation of industrial control systems.
TECHNICAL SKILLS
Backend Development: PHP 7/8, Laravel 8-12, Yii, Yii2, REST API, Composer
Databases and Search: MySQL, SQL, database design, query optimization, Elasticsearch
Architecture: Service-Oriented Architecture, DDD, MVC, Clean Architecture, Clean Code
Design Patterns: GoF patterns, SOLID, DI

Maksym Pavliienko | PHP Backend Developer
AI-Assisted Development: Claude, OpenAI Codex, Claude Code, Cursor, SDD, OpenSpec, prompt engineering, AI-assisted code
review and refactoring
DevOps and Tools: Docker, Git, Linux/Unix, Shell Scripts, CI/CD
Testing: Unit testing, integration testing, PHPUnit
Additional Technologies: C, C++, Qt, Assembler
EDUCATION
Specialist Degree in Computer Science - Severodonetsk Technological Institute, 2005
LANGUAGES
English: Intermediate - technical documentation, written communication, and basic conversation

Maksym Pavliienko | PHP Backend Developer