Дмитро

Chub Dmytro Senior PHP (Symfony)
Developer

CONTACT Phone: [відкрити контакти](див. вище в блоці «контактна інформація») LinkedIn Profile
Email: [відкрити контакти](див. вище в блоці «контактна інформація») Location: Ukraine

SUMMARY Backend developer with 6+ years of experience in PHP/Symfony. Proven track record
of designing REST/RPC APIs, integrating third-party services, and processing high-
volume datasets (10M+ records). Led a full platform migration from Magento to
Symfony. Applies SOLID, DDD, Event-Driven Architecture, and classic design patterns.
Work across the full feature lifecycle: technical investigation, consulting developers
and QA, reviewing test cases, and delivering business requirements end-to-end.

Tech stack:
TECHNICAL
SKILLS PHP, Symfony, MySQL, PostgreSQL, Redis, RabbitMQ, Elasticsearch, OpenSearch,
Docker, AWS, OpenAPI, SOAP, Doctrine ORM, PHPUnit, Postman, Imagick, avifenc,
WordPress, Magento, JavaScript

Principles & Patterns:
SOLID, DRY, KISS, DI, DDD, Event-Driven Architecture, Service Layer, Repository, DTO,
Factory, View Model

PROFESSIONAL Senior Backend Developer | March 2021 — Present
EXPERIENCE RONIS

Development and maintenance of a scalable e-commerce platform built on Symfony,
including full platform migration from Magento.

Led full rewrite from Magento to Symfony — product sync speed improved 5x after
migration
Designed and implemented a custom API (OpenAPI alternative) with auto-
generated documentation (Swagger alternative)
Designed and implemented a custom RCP API (OpenAPI alternative) with auto-
generated documentation (Swagger alternative)
Integrated external services via SOAP API & OpenAPI
Boosted conversion rate through integrations with Klaviyo, Recommend, Google /
Facebook / Pinterest product feeds
Integrated marketing automation services Klaviyo and Recommend with
synchronization of 10M+ records
Implemented delivery tracking integrations: StarLink, DHL and others
Server-side conversion tracking via Snapchat Conversions API and Meta
Conversions API
Integrated ZigZag API for product returns processing
Custom UGC content aggregation pipeline from Facebook and Instagram
 Performance tuning: e.g. resolved memory leak in translation processing for 3M+
records, eliminated excess Doctrine ORM queries caused by OneToOne
associations
Zero-downtime deployments: persistent background workers and RabbitMQ
queue consumers surviving deploy cycles
Applied Event-Driven Architecture and design patterns: Service Layer, Repository,
DTO, Factory, View Model
Wrote unit tests (PHPUnit); API testing with Postman

Junior PHP Developer | July 2020 — March 2021
Ukrlogika

Maintained and administered the Ukrlogika website on WordPress CMS
Frontend page layout development (HTML/CSS/JS)
Full-stack development on Bitrix CMS (frontend and backend)
Built custom parallax animations in vanilla JavaScript without third-party plugins
Website performance optimization (load speed improvements)

EDUCATION Kharkiv Polytechnic Institute
Bachelor’s Degree in Information Systems and Technologies

Kharkiv Computer Technology College of NTU "KhPI"
Associate Degree (Junior Specialist) in Software Engineering

LANGUAGES Ukrainian — Native
English — Intermediate (B1)