Особисті дані приховані

Tymur Zhukotynskyi
Middle PHP/Laravel Developer

[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Bulgaria, Sofia

Summary Backend Developer with over 5 years of commercial experience specializing in PHP 7+, 8+ and
the Laravel ecosystem (versions 9–12). I possess deep expertise in designing scalable
architectures from scratch and executing successful refactors of complex legacy systems. My
background includes hands-on experience with high-load e-commerce and crypto projects,
where I ensure peak performance through advanced query optimization (SQL EXPLAIN) and
ElasticSearch integration.

I am an expert in building reactive interfaces using Livewire and Alpine.js, as well as designing
robust REST APIs. I prioritize code cleanliness and SOLID/KISS/DRY principles to ensure long-
term product maintainability. I maintain a proactive professional stance, identifying technical
bottlenecks and proposing strategic solutions to drive product growth.

Education Kharkiv National University of Radio Electronics Master's Degree
Computer science Kharkiv • 2022-2024

Experience Brights
Middle Laravel Developer Jun 2022 - Nov 2024
Junior Laravel Developer Jun 2021 - Jun 2022
https://brights.io

OX
Middle FullStack/Laravel Developer Apr 2025 - Jul 2025
https://oxcompany.io/

Linecore
Middle Laravel Developer Sep 2025 - Mar 2026
https://www.linecore.com

Skills  PHP
OOP, Design Patterns, PHP 7.x, PHP 8.x, SOLID

 Laravel
Livewire, Eloquent, Queues, Cache, DDD

 Database
SQL, MySQL, PostreSQL, EXPLAIN, Indexes, Query Optimisation, ElasticSearch, NoSQL, Redis

 Search & Performance
ElasticSearch, Redis, High-Load Optimisation, Caching

 Frontend For Backend
Alpine.js, Blade, Livewire ecosystem, WebSockets

 Architecture
Building architecture from scratch, SOLID, DRY, KISS, REST API, Legacy Refactoring, High-Load

Languages English
B2
#1 High-Load E-commerce Platforms (Clothing & Tourism Stores)​
​
September 2025 - March 2026

Tech Stack

●​ Laravel 12
●​ MySQL (Maria DB)
●​ Livewire + Alpine.js
●​ ElasticSearch
●​ Redis
●​ Laravel Horizon
●​ API (Esputnik)

​
Worked on two high-load e-commerce projects built on the same internal platform
foundation:

●​ an online clothing store with 100,000+ products
●​ an online tourism equipment store with 80,000+ products

In reality these projects share the same core architecture, but I describe them separately
because they were developed in parallel. On the first project I mainly analyzed the existing
implementation and improved it based on practical observations. On the second project,
using the same platform foundation, I focused on improving the architecture so it could be
reused and extended more easily in future projects built on this base.

Both projects are built with Laravel and Livewire, where Livewire essentially covers the
entire frontend interaction layer. The catalog is implemented using legacy Livewire code that
works in a specific way: instead of the standard Livewire navigation, it uses
history.pushState to support SEO-friendly behavior. Working on these projects involved
dealing with high load scenarios, analyzing database queries with EXPLAIN, and integrating
ElasticSearch, Livewire, Alpine.js, and legacy code.

Key tasks and improvements:

●​ Improved catalog performance and prepared it for production usage.
➢​ Optimized ElasticSearch data processing by removing unnecessary
aggregations whose data was only partially used, and consolidating them into
two main aggregations responsible for filters and products. Additionally
removed redundant filter queries and reused the data already returned by
ElasticSearch. This eliminated a large number of extra requests that
previously fetched data for each filter separately.
➢​ Optimized processing of ElasticSearch results by introducing multiple
product data selection strategies instead of using a single universal data
structure. The previous implementation was redundant and created additional
load both on PHP resources and on the rendering of the main Livewire
catalog component.
 ●​ Developed a new ElasticSearch service for the brand catalog, using a cleaner
and more predictable architecture.​
This resulted in more stable behavior of the module and allows it to be reused in
future projects built on the same platform without additional adjustments.
●​ Implemented several modules largely from scratch, including wishlist, brand
catalog, and user account area.​
These modules were implemented in a cleaner and more predictable way, allowing
the company to reuse them across projects and speed up development of new
stores.
●​ Migrated the frontend build process to Vite and reorganized the frontend structure
by introducing multiple Blade layouts.​
This makes the frontend architecture more structured and reduces the time required
to work with frontend components in the future.
●​ Refactored a large checkout component, making its behavior more explicit and
dependent on a single state condition that switches both the UI and the logic
according to checkout steps.

These two projects were developed partially in parallel: one was already near completion
while the other was just starting, so most of the time was spent on the second project while
applying the experience and insights gained from the first one.

#2 Cryptocurrency Payment Platform​
​
April 2025 - July 2025

Tech Stack

●​ Laravel 12
●​ PostgreSQL
●​ Inertia.js (Vue.js)
●​ Laravel Sail
●​ Redis
●​ Laravel Horizon
●​ REST API
●​ Crypto APIs (Bitcoin / Ethereum / Solana / TRX)

Developed a cryptocurrency payment platform from scratch, designed to work with two
types of users:

●​ Businesses
●​ Customers

The platform functions as a third-party crypto payment system for businesses that want to
accept cryptocurrency payments for different types of services or goods.

The model works as follows: a business registers on the platform, receives an account, and
is provided with a unique payment page link that can be used to accept payments.
Each financial transaction involves the creation of a separate wallet, and the payment is
processed specifically through that wallet. The system supports payments across four
blockchain networks:

●​ Bitcoin
●​ Ethereum
●​ Solana
●​ TRON​

Each step of the transaction process is tracked and reported through Telegram
notifications, allowing businesses to stay informed about the exact stage of every financial
operation.

Implemented

●​ Designed the database schema and application architecture from scratch,
following DDD and SOLID principles.
●​ Implemented the full order lifecycle, starting from the initial order initialization
request to final payment confirmation, including custom logic that automatically
verifies the existence of a payment after blockchain confirmation.
●​ Implemented a Telegram notification system that reports every stage of the
transaction process.
●​ Developed a user dashboard and an admin panel with role-based access
control.

#3 E-commerce Platform for B2B Services​
​
September 2022 - November 2024​
​
Technologies: Laravel, PHP, MySQL/PostgreSQL, Redis, REST API

Tech Stack

●​ Laravel 10/11
●​ MySQL
●​ Livewire
●​ Redis
●​ Laravel Horizon
●​ REST API
●​ API Integrations (Stripe payment sysem, Google Maps, Google Sheets, NDA)
●​ AWS S3

Role: Technical Lead / Backend Developer

Joined a B2B e-commerce project that had been started with non-professional codebase
and raw realization of the main features. After launching and adding new modules as the
client’s business requirements continued to grow, the existing architecture became
increasingly unstable and difficult to maintain.
After conducting a technical assessment, I helped drive and justify the strategic decision to
completely rebuild the system from scratch, presenting the long-term benefits of a clean
architecture over continuous patching of legacy code.

Key Contributions:

●​ Led the technical re-architecture of the platform, acting as the technical lead during
the redesign and implementation phases.
●​ Designed a new database schema and application architecture based on DDD
(Domain-Driven Design) principles to ensure long-term scalability and maintainability.
●​ Defined the core domain structure, services, and application boundaries, replacing
tightly coupled legacy logic with a modular and predictable architecture.
●​ Implemented parallel task processing and improved query execution, optimizing SQL
queries and significantly increasing order processing performance.
●​ Rebuilt critical business logic in a way that reduced technical debt and simplified
future development.

Result:

The client received a high-performance and maintainable system built on a clean
architecture.
The new platform significantly reduced the frequency of production issues and enabled
smooth upgrades of PHP and Laravel versions, minimizing long-term maintenance costs and
ensuring the product can scale with the client’s future business needs.