Andrii

Andrew Ozarko
Senior Software Engineer

Executive Summary
-​ Senior Backend Engineer (7+ years) specializing in the PHP/Laravel ecosystem.
-​ Proven expertise in modernizing complex legacy systems and building new full-stack
applications, integrating React.js and Inertia.js for modern UIs.
-​ Highly skilled in database design (MySQL, Postgresql) and performance optimization
using Elasticsearch and Redis.
-​ Deep experience in Linux environments and containerization with Docker.

Technical Skills

Skill Category Skill List

Programming Languages PHP, Javascript, Golang, Python

Backend & Frameworks PHP: Laravel, Codeigniter, Yii2, Symfony;
JavaScript: NestJS, Express;
Golang: Gin;
Python: Flask;

Databases & Data Stores RDBMS: MySQL, Postgresql;
NoSQL: MongoDB;
Caching & Search: Redis, Elasticsearch;

DevOps, Cloud & Containerization: Docker, Docker Compose;
Infrastructure Cloud (AWS): EC2, S3, SES;
Web Server: NGINX, Apache, Gunicorn;
OS: Linux (Arch, Ubuntu, etc.), MacOS, Windows

AI / Machine Learning Llama.cpp, Transformers, LoRA, Gemma 3, Medgemma,
Gemini, Google Ai Studio

Tools & Other Technologies Version Control: Git;
Development Tools: VS Code, PHPStorm;
APIs: GraphQL, GRPC, Swagger;
Monitoring: Datadog, Papertrail;
Project Management: Jira, Worksection
Security: Metasploit, WPScan, Sops

Verticals Finance, B2B, CRM, Medical
Certifications

Certification Category Certification Grade/Remarks

PHP Beginner (2017) https://gb.ru/certificates/198119.en - geekbrains

PHP Intermediate (2021) https://gb.ru/certificates/1286215.en - geekbrains

Go Essential Training (2022) [відкрити контакти](див. вище в блоці «контактна інформація»)
4a6c9cf5df9ab10858b9b02fc5c061cca04ea355e998489c15
8c?trk=share_certificate - Linkedin

Foreign Language Skills

Language Written Spoken
English Upper-intermediate Upper-intermediate

Education
Institution Ivan Franko National University of Lviv
Date(s) Attended September 2016 – June 2019
Qualification(s) Junior Bachelor’s degree in Computer Science
Professional Experience

Company Solvit

Duration May 2025 - Nov 2025

Role ML Software Engineer

Projects ●​ AI-driven CRM for medical therapists, featuring Speech-to-Text
and LLM-based automation.

Achievements ●​ Engineered a Speech-to-Text (STT) service using Python, Flask,
and Whisper to allow voice-based patient data entry.

●​ Implemented LoRa fine-tuning to train models on specific medical
terminology in Norwegian and Swedish, significantly improving
recognition accuracy.

●​ Developed and deployed a concurrent LLM service using Llama.cpp
and Medgemma 3 to automate therapist tasks, including report
generation and anamnesis.

●​ Managed the full deployment lifecycle for the AI services and
provided full-stack support for the main CRM, including bug fixing
and feature development in PHP (Yii 2).

Technologies Python, Flask, LangChain, Celery, LLaMA.cpp, Gunicorn, CUDA,
Transformers, LoRa, Whisper, Medgemma 3, Docker, Redis, Postgresql,
PHP, Yii 2, Angular, Swagger
Company EPAM

Duration Sep 2024 - Dec 2024

Role Senior Software Engineer

Projects ●​ American Trade Exchange - Legacy Modernization

Achievements ●​ Engineered a new, modular application structure using native
Laravel to successfully refactor a complex legacy trading platform.

●​ Designed and implemented a State Machine pattern to manage
contract lifecycles and statuses, ensuring high data integrity while
working with non-normalized legacy data.

●​ Drove feature development, bug resolution, and established unit
testing and code review standards to improve code quality during
the transition.

Technologies PHP, Laravel, Docker, MariaDB, AWS, AWS SQS, Jira, Angular, Swagger

Company Swipex

Duration Feb 2023 - Jun 2024

Role Senior Software Engineer

Projects ●​ Modular e-commerce shop with custom plugins and
multi-language support.

●​ Health food shop with cryptocurrency payments and a
Backpack admin panel.

Achievements Led module and SQL database design for the new e-commerce platform;
responsible for feature planning and team support.

Implemented full-stack features across both projects, utilizing diverse stacks
including React/Inertia.js for one and Livewire/Backpack for the other.

Successfully integrated multiple payment and delivery APIs, including
Liqpay, Novapost, and cryptocurrency payment gateways.

Configured and managed auto-deployment pipelines for the e-commerce
platform.

Technologies PHP, Mysql, Laravel, Typescript, React, Next.js, Inertia JS, Livewire,
Backpack, Javascript, Jquery, Docker, Docker Compose, Elasticsearch
Company GlobalLogic

Duration Mar 2021 - Nov 2022

Role Software Engineer

Projects ●​ Contributed to the user and admin-facing services for a
large-scale AI/ML video streaming and storing platform.

Achievements
●​ Developed a high-performance CLI tool in Golang to automate
kubernetes configuration generation and migration processes,
significantly reducing deployment time and simplifying changes for
new tenants.

●​ Managed a portfolio of 7 polyglot microservices (PHP/Codeigniter,
NodeJS/NestJs) , leading a successful migration of key functionality
from PHP to a new NodeJS service.

●​ Executed a critical legacy system upgrade from Codeigniter 2 to 3,
enhancing application performance and security.

●​ Handled deployments of new microservice versions and tenants ,
implemented a standardized local development environment , and
managed version updates across services.

Technologies PHP, Composer, Golang, Javascript, TypeScript, NodeJS, Npm, Nvm,
MongoDB, AWS CLI, Sops, K8s, Rancher, Codeigniter, NestJS, Vue,
Angular, Websockets, Docker, Docker-compose, One signal, Google OAuth,
Datadog, Papertrail, Proto, RabbitMQ, Jira, MySQL, Minikube, Terraform,
GitHub Actions, Stripe, Cloudfront
Company OGD Solutions

Duration Oct 2021 - Feb 2022

Role Full Stack Engineer

Projects ●​ Real-time logistics platform for vessel tracking.

●​ Educational platform with third-party API integrations (Stripe,
Zoom).

●​ Large-scale legacy CRM built on native, procedural PHP.

●​ Full-stack CRM for warehouse management (Laravel & Vue.js).

Achievements
●​ Developed a real-time vessel tracking dashboard using Vue.js and
Leaflet, consuming data from a Hasura (GraphQL) backend via
WebSockets.

●​ Engineered a backend solution on Laravel for an educational
platform, successfully integrating multiple third-party APIs including
Google Calendar, Stripe, PayPal, and Zoom.

●​ Maintained and optimized a large-scale legacy CRM built on
procedural, native PHP, performing critical bug fixing and
performance enhancements.

●​ Built and supported a full-stack CRM application using Laravel and
Vue.js within a Dockerized development environment.

Technologies PHP, Laravel, JavaScript, Vue.js, React.js, Nuxt, GraphQL, WebSockets,
Leaflet, MySQL, AWS, Docker, Docker-Compose, Vagrant, HTML, CSS
Company Swipex

Duration Jun 2019 - Dec 2020

Role Backend Developer; Project Manager

Projects ●​ Core B2B sales and management platform.

Achievements
●​ Designed the database architecture (Postgresql) and modular
structure (Nwidart Modules) for the platform.

●​ Acted as Project Manager, coordinating development tasks,
managing team communication, and ensuring project deadlines.

●​ Optimized existing modules and experimented with Golang for
high-performance features.

Technologies PHP, Postgresql, Laravel, VueJS, Nwidart Modules, Andersao/l5-repository,
Supervisor, Cron, Laradock, Postman

Company Redentu

Duration Sep 2018 - May 2019

Role Junior Software Engineer

Projects ●​ Multi-calendar time scheduling application with payment
integration

Achievements
●​ Developed the backend API using Laravel (Apiato) for a
time-scheduling platform.

●​ Successfully integrated third-party APIs for Google Calendar,
Outlook Calendar, and Stripe payments.

●​ Responsible for core business logic, API documentation (ApiDoc),
and performance optimization.

Technologies PHP, Laravel, Apiato, MySQL, Docker, Docker Compose, ApiDoc, Postman.