Oleksandr

Contact Oleksandr Borys
[open contact info](look above in the "contact info" section) Senior Software Engineer (Node.js) | Microservices & System Design | AI
[open contact info](look above in the "contact info" section) Agents & Automation
oleksandr5borys (LinkedIn) Ukraine

Top Skills Summary
Node.js Senior Software Engineer with a wide range of interests. Creation of highly
Python scalable and maintainable systems and AI automation. Microservice architecture
Claude Code design and implementation using design patterns, best practices, and modern
technologies. Experience in networking, HTTP, WebSockets, UDP, message
Languages queues. Strong background in Node.js and Python. Expertise in architecture
Ukrainian (Native or Bilingual) decisions, code review, and Agile processes. Experience in integrating AI models
into products. Communication with customers. Ability to work successfully both
English (Professional Working)
independently and as part of a team.

Certifications Tech stack: Node.js, TypeScript, Python, NestJS, Express.js, Fastify.js, FastAPI,
Dive Into Refactoring React, Vue.js, D3.js, PostgreSQL, MongoDB, Redis, Elastic Stack, RabbitMQ,
WebSockets, Docker, AWS, CI/CD, Appium, OpenCV, YOLO, Claude Code

Experience
NDA
Senior Software Engineer
January 2023 - Present

Real-time data analytics platform · Tech Lead
Platform for working with large amounts of data, including charts, live maps, and a built-in chat,
with complex entity relationships and business logic.
Key contributions: led the team as Tech Lead, making architecture decisions and reviewing
code; built backend services and APIs with Node.js and TypeScript; developed frontend features
and data visualizations with Vue.js, D3.js, and Elastic Stack; set up live data streaming with
RabbitMQ and Redis; kept the platform fast with large amounts of data.
Technologies: Node.js, Express.js, TypeScript, ArkType, Vue.js, D3.js, Microservices,
RabbitMQ, Redis, WebSockets, UDP, Elastic Stack, PostgreSQL, Docker, AWS, CI/CD, Claude
Code

Social media automation platform
System for automating many Instagram and other social media accounts on Android devices.
Key contributions: set up and scaled Android emulators; built a service that runs and controls
many Android devices at the same time via ADB; automated in-app actions with Appium;
created a FastAPI backend and React dashboard for sending commands to devices and
tracking their status and logs in real time via WebSockets.
Technologies: Node.js, TypeScript, React, Python, FastAPI, WebSockets, Appium, ADB,
Android Studio, GeeLark, Docker, Claude Code

Computer vision module for a security system
Video analytics module for a video surveillance system.
Key contributions: set up automatic dataset creation with SAM 2; trained custom YOLO models
and improved their accuracy; exported the models to ONNX for production use; integrated the
models with OpenCV in Python; implemented object detection, classification, recognition, and
tracking across video frames; connected the module to the main system through APIs.
Technologies: Python, OpenCV, YOLO, ONNX, SAM 2, Docker, Claude Code

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Logika School
Python Programming Teacher
October 2021 - February 2022 (5 months)

Freelance
Full Stack Developer (Node.js)
March 2021 - February 2022 (1 year)

CRM system for an IT company
Internal CRM system for task management, time tracking, team chat, and automation of daily
work.
Key contributions: designed the system architecture and PostgreSQL database from scratch;
built the backend and APIs with Node.js, Fastify.js, and TypeScript; developed the frontend with
Vue.js; added real-time chat with WebSockets; set up deployment with Docker and maintained
the servers; worked directly with the client to turn business needs into features.
Technologies: Node.js, Fastify.js, TypeScript, Vue.js, PostgreSQL, WebSockets, Docker

Private messenger for an educational institution
Private mobile messenger for safe communication between staff and students.
Key contributions: built the backend and APIs for the Flutter mobile app with Node.js, NestJS,
and TypeScript; implemented real-time chat with WebSockets; added user roles and access
rights; designed the MongoDB data model for users and messages; deployed the backend with
Docker; tested and released new features.
Technologies: Node.js, NestJS, TypeScript, MongoDB, WebSockets, Docker

Q Art Rock
Full Stack Developer (Node.js)
October 2020 - February 2021 (5 months)

Financial management tool
Online accounting and business analytics platform, including finance tracking and business
performance analysis.
Key contributions: built backend services and APIs with Node.js, Express.js, and TypeScript in a
microservices architecture; developed frontend features with React; worked with PostgreSQL
and MongoDB databases; wrote unit and E2E tests with Jest.js; refactored and improved
existing code.
Technologies: Node.js, Express.js, TypeScript, React, Microservices, PostgreSQL, MongoDB,
Jest.js, Unit & E2E testing, Docker

Avivi.pro
Backend Developer (PHP)
June 2017 - February 2020 (2 years 9 months)

E-commerce projects
Development and support of online stores.
Key contributions: built backend logic and frontend features; integrated stores with CRMs,
payment systems, delivery services, and analytics tools; administered servers and automated
routine tasks.
Technologies: PHP, Laravel, MySQL, JavaScript, HTML/CSS, REST API

Education
Lutsk National Technical University
Master of Computer Science · (September 2012 - June 2015)

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