Андрій

Andrii Sahatyi
Senior Software Engineer

Executive Summary
With more than 10 years of experience in web development, I consider myself a Full-Stack
Software Engineer with strong expertise in backend development, cloud technologies, and
distributed systems.
My primary technology stack is centered around PHP and JavaScript/Nodejs, with extensive
experience building scalable applications using modern frameworks and relational databases.
I also work with document-oriented databases and design efficient data models for both SQL
and NoSQL environments.
Throughout my career, I have designed and developed enterprise-grade applications across
multiple industries, including e-commerce platforms, CRM systems, online streaming
services, recruitment platforms, and other high-traffic, real-time applications. I have hands-on
experience building high-performance systems, designing scalable client-server architectures,
and implementing microservice-based solutions.
Cloud technologies are a significant part of my daily work. I have practical experience
designing and implementing cloud-native architectures on AWS and hold active AWS
Solutions Architect certifications. My experience includes designing scalable infrastructure,
improving application reliability, and optimizing cloud resources for performance and cost
efficiency.
In addition to software development, I have experience with DevOps practices, development
automation, CI/CD pipelines, containerization, infrastructure provisioning, and configuring
development environments to support efficient software delivery.
More recently, I have been working extensively with Artificial Intelligence solutions. I have built
AI-powered document processing pipelines, integrated Large Language Models (LLMs) into
production systems, implemented Retrieval-Augmented Generation (RAG) architectures,
worked with vector databases, prompt engineering, semantic search, document analysis, and
intelligent information retrieval systems.
My technical expertise includes:
• Full-Stack Web Development
• PHP, Laravel, Symfony, WordPress
• JavaScript, TypeScript, React
• REST APIs, WebSockets
• Microservices Architecture
• Distributed Systems Design
• AWS Cloud Architecture(associate level)
• Docker, CI/CD, DevOps Automation
• Relational Databases (MySQL, PostgreSQL)
• NoSQL Databases (MongoDB)
• Redis, Message Queues, Background Processing
• Real-Time Applications
• Software Architecture & System Design
• AI Integration
• Prompt Engineering
• Retrieval-Augmented Generation (RAG)
• Vector Databases
• AI Document Processing
• OCR Pipelines
• Client-Server Architecture Design
• Agile Software Development
Also have experience with software architecture, end-to-end encrypted systems, WebSocket-
based real-time applications, AWS, AI/LLM integrations, DevOps, and high-load systems.
In addition to software engineering, I actively participate in the technical hiring process by
conducting candidate interviews and evaluating both technical expertise and problem-solving
abilities. I enjoy mentoring engineers and assessing not only their technical knowledge but
also their communication, collaboration, and critical thinking skills. I really believe that
successful teams are built on a combination of strong technical competence, trust,
professionalism, and well-developed soft skills.

Technical Skills

Skill Skill Sub Category
PHP PHP, CodeIgniter, Laravel
JavaScript jQuery Mobile, AJAX, ExpressJS, Ext JS,
JavaScriptMVC, NodeJS, ReactJS, Socket.IO, Google
API, JSON, Mustache, PDF.js, Gulp, TypeScript
HTML/CSS HTML5, DHTMLX, Bootstrap, LESS, SOAP, XHTML,
XML Schema, SASS, XSLT, Semantic UI
Databases BigTable, MySQL, NoSQL, SQL Server, Memcached,
MongoDB, SQL Triggers, SQL Table Functions,
PowerShell, Redis, Elastic Search
Containerization Docker, Kubernetes, Istio
Microservices Docker Compose, Docker Swarm
NoSQL DB Redis, MongoDB
ReactJS redux
NodeJS NodeJS
Python Python
Drupal Drupal
Network TCP/IP, Traffic load balancing, Security
Testing Unit Testing
Repository Management NPM
Generative AI - LLMs RAG (Retrieval-Augmented Generation)
AI AI
Generative AI Vector Databases
Cloud Platform Amazon Web Service (AWS)
Processes Agile
Technical Writing API documentation (OpenAPI / Swagger)
Technology and Tool Skills Technical Documentation

Foreign Language Skills

Language Written Spoken
 English Intermediate Intermediate

Education

Institution: LPU (Lviv Polytechnic University), Ukraine
Date(s) Attended: October 2012 - September 2014
Qualification(s): System analysis and engineering
Major Subject(s): Computer science, microcontroller programming, software
engineering, electronics

Institution: LDI (Institute of Ecology, Environment Protection Activity and
Tourism named after V. Chornovil), Ukraine
Date(s) Attended: May 2008 - September 2012
Qualification(s): Computer Science
Major Subject(s): Information technologies, system analysis, mathematical analysis,
programming

Professional Experience

Company: Global Logic, Lviv, Ukraine
Duration: Jun 2025 - Aug 2026 (about 1 year)
Role: Collegiate Sports Recruiting & AI Analytics Platform
Project Description: Collegiate Sports Recruiting & AI Analytics Platform

Platform is a cloud-based sports recruiting platform focused on
collegiate athletics across the United States. The platform
connects student-athletes, coaches, recruiters, and educational
institutions by providing an end-to-end recruitment ecosystem
powered by data analytics and Artificial Intelligence.

The system enables athletes to build professional profiles, manage
their recruiting journey, communicate with coaches, and track
recruitment opportunities. Coaches and recruiters can efficiently
search millions of data points using advanced filtering, analytics,
and AI-powered recommendations to identify the most suitable
candidates.

A significant part of the platform is dedicated to intelligent
document processing and financial analytics. The system
automatically extracts, classifies, and analyzes large volumes of
contracts and financial documents using OCR, Large Language
Models (LLMs), Retrieval-Augmented Generation (RAG), and
vector search technologies. Users can interact with an AI assistant
through a real-time chat interface to receive contextual answers,
financial insights, and document summaries generated from
hundreds of pages of source material.

The platform is built using a scalable microservice-oriented
architecture hosted on AWS and supports high availability,
automated deployments, and cloud-native infrastructure. It
combines traditional web technologies with modern AI capabilities
to deliver highly responsive, data-driven experiences for both
recruiters and athletes.
Responsibilities: Key Responsibilities

- Designed and developed scalable full-stack applications using
Laravel, Vue.js, and Laravel Nova.
- Built AI-powered document processing and financial analytics
solutions using OpenAI, RAG, and vector databases.
- Developed intelligent search, OCR, and real-time AI assistant
features.
- Designed REST APIs, asynchronous processing, and high-
performance backend services.
- Optimized SQL queries, database design, and application
performance.
- Implemented CI/CD pipelines and collaborated with DevOps on
infrastructure automation.
- Conducted architecture reviews, code reviews, and technical
planning

Also within my area of responsibility, I led the development team
using Agile/Scrum methodologies, coordinating sprint planning and
task estimation, and ensuring on-time feature delivery. Conducted
architecture reviews, code reviews, technical planning, mentoring,
and collaborated closely with PM, QA

Technologies

Backend: PHP, Laravel, Laravel Nova, REST APIs
Frontend: Vue.js 2, JavaScript, Tailwind CSS
AI: OpenAI, Prompt Engineering, RAG, Vector Databases, OCR,
AI Chatbots
Databases: MySQL, PostgreSQL, Redis
Cloud & DevOps: GCP, Docker, Jenkins, CI/CD
Architecture: Microservices, Distributed Systems, Event-Driven
Architecture, Client-Server Architecture
Technologies: PHP,(Laravel, Nova CMS) Mysql, Redis, AI integration

Company: Global Logic, Lviv
Duration: Dec 2024 - Present (over 1 year)
Role: Full Stack developer
Project Description: A multi-cloud online streaming platform designed for content
distribution and synchronization across various content
management systems (CMS), including thePlatform. The system
integrates AWS (Lambda, S3), Azure, and internal services,
leveraging Docker-based deployment and DevOps automation. It
supports both SQL (relational) and NoSQL (MongoDB) databases
to manage and synchronize content efficiently. The architecture is
deployed across AWS and Azure, utilizing automated deployment
pipelines. Additionally, a multi-management system ensures
seamless content synchronization and distribution across various
streaming services.
Responsibilities: - Development of a Data Hub for validating and transforming data
from multiple content management platforms. Used Node.js and
TypeScript to design and implement data validation schemas and
transformation logic, ensuring format consistency across systems.
- Enhancing WordPress Functionality, including the development
of custom plugins, services, and modules to optimize the content
editing experience.
- REST API Development for WordPress, designing and
implementing a scalable RESTful API architecture to improve data
accessibility and integration.
- Content Integration for Online Streaming Platforms, building and
maintaining a data hub to synchronize content between streaming
services. Developed a real-time service for WordPress using PHP,
SQL, WP-CLI commands, and Cron Jobs to automate content
retrieval and updates.
Technologies: PHP, SQL, NoSQL (MongoDB), AWS (Lambda, S3), Azure
(DevOps Pipeline Process), CMS (WordPress), Node.js, Docker,
REST API, WebSockets, Git, CI/CD, OAuth, JWT.

Company: GlobalLogic, Lviv
Duration: Aug 2020 - Dec 2024 (over 4 years)
Role: Full stackDeveloper
Project Description: US Media streaming company
This is a large online streaming platform for broadcasting movies,
and series, which consists of many networks in different parts of
the world. A powerful streaming platform that also has a television
direction, Internet resources, and works with various providers and
autonomous devices such as Roku
Responsibilities: - Support of the existing ecosystem of internal projects of projects
built on PHP - my task was to update the code base using new
versions of PHP and work on adding new modules to the CRM
system for data processing. Also, i made a custom solution in SQL
for data aggregation and manipulation.
- Development of components using ReactJS and multi-frontend
using Web Application Manifest. I was creating separate modules
for an online streaming platform.
- Writing manual tests using the Jest JavaScript Testing
Framework. I created tests that were an important part of the CI/
CD process. I use Mock and Stub to work with the expected result
in manual testing mode
- Update of API interface and service gateway. Update of API
requests, validation of parameters, and proxy for working with API.
Development of search system - Work with Redis and
ElasticSearch to speed up search results.
Technologies: PHP,ReactJS, NodeJS, MySql, Redis, CDN, Python

Company: SCALR
Duration: Jun 2018 - Feb 2019 (9 months)
Role: Backend Developer/Full Stack developer
Project Description: The hybrid cloud management platform. The goal of the project is
to enable customers to take advantage of cloud resources in a
convenient way. The main components of the project were: cost
optimization, security & compliance, customize self-services,
cloud policy engine.
Responsibilities: Worl in core and UI teams. Creating business logic and
development of separate modules of a managed cloud platform.
Work and investigate a lot of popular cloud services: Azure,
Amazon, GC, Rackspace, AWS, VMWARE and so on. Writing
UNIT tests for a new feature and logics. Writing documentation for
the backend part. Creating UI for interactions with backend
services.
Technologies: PHP 7+, MYSQL, JavaScript, 0MQ, RABBIT MQ, REDIS, ExtJs,
jQuery, CSS3, HTML, XML

Company: Cyberchisel Company, Lviv, Ukraine
Duration: Oct 2017 - May 2018 (8 months)
Role: Mysql | PHP Develope
Project Description: Projekts is a real-time data analysis system. Real-time updates,
and collection of information by regions of the world. The project
was used for the purpose of providing real-time data collection
services about events and news that occurred around the world.
We used powerful data streams and constant data updates
through pure caching using Kafka and ElasticSearch.
Responsibilities: - Finalization of individual modules for the customer management
system(PHP, Laravel, Mysql)
- Development of a system of controlled user access to
content(PHP, Mysql, JS)
- Writing controllers and relational models for processing and
manipulating database data (PHP, Mysql,)
Technologies: PHP, JS, MySQL, Laravel4/5,

Company: SSD(smart system development)
Duration: Dec 2016 - Oct 2017 (11 months)
Role: Backend Developer/Full Stack developer
Project Description: Private Customer-relationship management system(Private inner
project for a company).
User management platform for small and medium business. The
purpose of the project is to quickly process a user request for web
resources and applications as well as a full cycle of management
of potential clients.
Responsibilities: Management of the work plan. Creating layouts of the site and
development UI part. Programming backend and front part in
general. Working with the product owner on all stages of the
project.
Technologies: PHP7+, Laravel 5, MYSQL, JavaScript, jQuery, CSS3, HTML