Anton Vasiliuk

CV RU
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Online resume and developer profile

Hello, I'm Anton Vasiliuk_

Backend-Focused Fullstack Developer

I work both on live Laravel products, where production must stay stable and legacy needs careful refactoring, and on new systems, where the backend architecture, APIs, integrations, and core product logic need to be built from scratch.

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Laravel PHP Filament TypeScript PostgreSQL Docker

> open profile --focus=backend

> Laravel, integrations, business logic, SQL

> Legacy support, gradual rebuilds, and product delivery

> 10+ years in commercial development: Laravel, APIs, integrations, new systems, and legacy modernization

> ready_

10+ years

Commercial software development

Backend + API

Laravel, integrations, business logic, SQL

Delivery focused

Legacy support, gradual rebuilds, and product delivery

About me

Backend / API / fullstack support

Mode: control room

I own the backend, from domain model to production

Backend-focused fullstack developer with 10+ years of commercial experience. I usually take ownership of backend architecture, APIs, integrations, adapter layers, database-heavy features, and gradual legacy rewrites. In some projects that means evolving a live product without breaking delivery; in others it means building the system from scratch around domain logic, admin flows, payments, and external services. In recent work I rebuilt core backend flows, connected 8+ external providers behind one adapter layer, and stepped into React and TypeScript when the product needed frontend support.

Primary Value

I rebuild critical backend flows without stopping production or turning delivery into chaos.

Working Style

I get into the domain quickly, shape a workable integration model, and carry the task through to production.

Skills

Core stack and adjacent tools

The stack I use most often in paid work, plus adjacent tools I can step into when the project needs them.

Backend

API design, integrations, business logic, databases, product backend workflows.

Adjacent

Frontend work, search, queues, infrastructure touchpoints, and debugging production systems.

Core Stack Matrix

PHP

PHP

Laravel

Laravel

Filament

Filament

TypeScript

TypeScript

JavaScript

JavaScript

React

React

MySQL

MySQL

PostgreSQL

PostgreSQL

RESTful APIs

RESTful APIs

Redis

Redis

Git

Git

Docker

Docker

Adjacent tools and technologies I can contribute with

Go
Go
Python
Python
Livewire
Livewire
Tailwind CSS
Tailwind CSS
GraphQL
GraphQL
Apache Kafka
Apache Kafka
Elasticsearch
Elasticsearch
Symfony
Symfony
HTML
HTML
CSS
CSS
jQuery
jQuery
Bootstrap
Bootstrap
Backbone.js
Backbone.js
WordPress
WordPress

GitHub activity

GitHub profile

anthonyVasiliuk

github.com/anthonyVasiliuk

Commit map and profile activity

The GitHub chart shows coding rhythm and gives a quick external signal of profile activity.

GitHub contribution chart for anthonyVasiliuk
Recent months. The full map is on the GitHub profile →

Own projects

Independent products where I own more than the backend

Independent products I build end to end: from the idea and data model to the interface, integrations, and launch. Each has its own domain and user journey.

AI-assisted astrology product

AstryHub

AstryHub is a product with payments, an AI chat, account flows, and bilingual content. I built the backend, screen structure, and delivery logic so a complex topic feels like a usable digital product.

AI chat Credits FAQ Glossary RU/EN

Why it matters

This one shows payments, a real content model, an AI layer, and bilingual structure. It behaves like a product, not a decorative landing page.

Open project

Instagram grid planner

Instiles.online

Instiles.online is a browser editor for connected Instagram layouts from 1x3 to 4x3. It separates the shared composition from per-tile content, previews the real profile with thumbnail crops and gaps, and exports posts in publishing order. I designed and built the editor, the export logic, and the bilingual site.

Canvas editor Profile preview Seam-aware export 1×3 – 4×3 RU/EN

Why it matters

The hard part is not cutting an image but modelling what Instagram actually shows: thumbnail crops, seams between tiles, and publishing order. It is product logic built around the surface users really see, not a simple splitter.

Open project

Dating through conversation

Talkfirst

Talkfirst is a dating service where the first step is answering a daily prompt. People read each other’s thoughts, unlock profiles after posting their own answer, and start a chat when interest is mutual. I built the product with a Laravel API, a Next.js interface, and a separate Go service for real-time messaging.

Laravel Next.js Go WebSocket PostgreSQL Redis RU/EN

Why it matters

Discovery rules and access to conversations follow the product logic. PostgreSQL stores messages, Redis connects real-time instances and presence, and WebSocket delivers events to the browser.

Open project

Product idea validation

s1doit.com

s1doit is a platform where small digital agencies share recurring manual tasks and independent developers validate solutions with future users. A problem catalog, solution attempts, and test results preserve a shared history. I built the Laravel backend, the public React and TypeScript interface, and the Filament operator panel. The project is live as a pilot.

Laravel React TypeScript Filament PostgreSQL RU/EN

Why it matters

A problem persists regardless of what happens to an individual solution. Each attempt has an author, a status, and updates; test results and findings remain for the next team. The model separates participation, attempts, and outcomes, while an operator reviews problems before publication.

Open project

Experience

Where I worked and what I was responsible for

> domains = proxies, gambling, travel, ecommerce, research, social

Current Product (NDA)

Senior Backend Developer

2025 - now product backend + platform rewrite

Product backend role focused on keeping a legacy commercial platform stable while migrating its core logic to a new engine without disrupting the live product.

Key outcomes

New Engine in ~3 Months

Rebuilt the core backend engine in about three months while the legacy branch stayed live, clearing the architectural limits that had been blocking new features.

External Providers and Billing

Integrated 8+ external providers and 3 billing systems behind a unified adapter layer with shared retries, stock sync, and provisioning, so adding a new provider became a routine, low-risk task.

Hot Paths and Stability

Profiled the heaviest API endpoints, database queries, and background jobs. After tuning the hot paths, the service stopped falling over under peak load and became much easier to operate.

Northitgroup

Middle+ Backend Developer

2022 - 2025 multi-project delivery

Outsource environment with multiple teams and stakeholders. Worked at Middle/Middle+ level on backend APIs, database design, tests, bug fixing, and package development.

Selected projects

Warehouseplus

Supported a legacy codebase, fixed production issues, extended backend and frontend functionality, then rebuilt a large backend API on a modern Laravel stack. Legacy stack: PHP 7, Symfony 3, MySQL 5, PHPUnit, Swagger, Elasticsearch. Modern stack: PHP 8.3, Laravel 10, MySQL 8, PHPStan, Pint, Pest, Swagger.

Yupinion

Built an online research platform for marketing and social surveys with participant rewards, a role-based admin panel, configurable survey flows, answer processing, email notifications, newsletters, and Excel import/export workflows. Stack: PHP 8.1, Laravel 10, Laravel Nova, Laravel Scout, PostgreSQL, Meilisearch, Swagger, PHP Unit.

Adandra

Developed a social network focused on matching people by interests, traits, and activities. The platform included chat, matching, favorites, blacklist functionality, caching, and content translation. Stack: PHP 8.2, Laravel 9, PostgreSQL, Elasticsearch, Redis, Swagger, PHP Unit.

Plus other commercial work across different teams and domains

Sportdata

Middle Fullstack Developer

2020 - 2022 betting + casino

Junior+/Middle role in a team of 5 backend and 5 frontend developers. Worked on backend APIs, database design, frontend features, and production fixes.

Gambling domain

Worked on gambling-related products including sports betting platforms and online casinos. Integrated gaming providers, payment providers, and contributed to frontend product features. Stack: PHP 7, custom platform, MySQL, React, Backbone.js, Smarty.

Web IT

Junior+ Fullstack Developer

2016 - 2020 travel platforms

Career starting point in a small team. Grew from junior contributor to mentoring two junior developers while working on backend APIs, database structure, frontend features, and bug fixing.

Travel domain

Contributed to a CMS and API platform for flight booking, hotel reservations, and car rentals. Worked with payment providers and travel aggregators in a functional-style legacy codebase. Stack: PHP 5-7, Smarty, MySQL, jQuery, Bootstrap.

Recommendations

What people said about working with me

Short references from people I worked with directly on commercial projects.

Reference Type

Direct people who worked with me on long-running commercial delivery.

Signal

Reliability, technical responsibility, backend depth, and steady long-term delivery.

His work consistently delivers efficient and effective solutions to complex problems.
Dimitry Kling

Dimitry Kling

COO of Northitgroup · 01 / 2025

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"I hereby recommend Anton as a skilled and reliable PHP backend developer. Over the past three years, Anton has been a key member of our team, contributing to various projects with dedication and expertise. He is proficient in PHP and has a solid understanding of databases, API integrations, and backend system design. His work consistently delivers efficient and effective solutions to complex problems. He is dependable, hardworking, and always ready to take on new challenges with enthusiasm. Beyond his technical proficiency, Anton is an excellent team player, with strong communication skills and the ability to adapt to project demands. In summary, he is a talented and responsible developer who would be an asset to any team."

He is proactive, dependable, takes ownership, and collaborates smoothly with colleagues and clients even under tight deadlines.
Stephan Hoffmann

Stephan Hoffmann

CEO of Northitgroup · 02 / 2025

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"I am pleased to recommend Anton as a talented and reliable PHP backend developer. During the years I worked with him, he consistently impressed me with his technical skills and commitment to strong results. Anton has an excellent grasp of PHP programming, database management, and API integration. He quickly understands project requirements and develops solutions that are efficient and effective. His problem-solving ability and attention to detail made him an essential contributor to our team's success. He is proactive, dependable, takes ownership, and collaborates smoothly with colleagues and clients even under tight deadlines."