Максим

MAKSYM KOSIANCHUK
Junior Software / Full-Stack Developer

Ukraine | +380 (09) 906-23-59 | [open contact info](look above in the "contact info" section)

PROFILE
Junior Software Developer with hands-on experience building applications across frontend, backend, databases, and
deployment. Strong practical experience with JavaScript, React, Node.js and Express.js, including the development of a
full-stack web application from scratch. Also experienced with C#, Java, Python and Unity through personal and university
projects.

Familiar with software architecture, OOP, functional programming, REST APIs, authentication, Clean Architecture, CI/CD
and unit testing. Academic background in Artificial Intelligence and Information Systems, including fundamentals of LLMs
and AI system architecture. Comfortable learning new technologies and working across different areas of software
development.

TECHNICAL SKILLS
Programming Languages: JavaScript — strong | C# — strong | Java — strong | Python — strong | TypeScript — basic |
C++ — basic | PHP — basic
Frontend: React | JavaScript | SPA | React Router | HTML | CSS
Backend: Node.js | Express.js | REST API | Authentication & Authorization | bcrypt | Google OAuth
Databases & Storage: MongoDB | PostgreSQL | AWS S3
Game Development: Unity / C# | Unreal Engine — basic | Blender
Architecture & Software Engineering: OOP | Functional Programming | Clean Architecture | REST API Design | Unit
Testing | CI/CD
Tools & Technologies: Git | GitHub | Git Flow | Vercel | Docker — basic | Jenkins — basic | Apache — basic | WinForms
— basic
AI: LLM fundamentals | AI system architecture | Fundamentals of AI agents and LLM-based systems

PROJECTS
Scribo — Full-Stack News Web Application | Personal Project
Live Demo: https://scribo-blog.vercel.app | Portfolio: https://scribo-blog-org.github.io/Scribo-Portfolio
 Developed a full-stack news web application from scratch using React, Node.js, Express.js and MongoDB.
 Designed and developed the frontend as a React SPA with reusable components and React Router.
 Designed and implemented the backend using Node.js and Express.js.
 Developed a REST API for application functionality and news management.
 Implemented authentication and authorization, including Google OAuth and password-based authentication with
bcrypt.
 Designed the backend using Clean Architecture principles to separate business logic, application logic and
infrastructure.
 Used MongoDB as the primary database.
 Integrated AWS S3 for storing uploaded images and other media.
 Managed the project with Git and GitHub using a Git Flow workflow.
 Configured automatic Vercel deployments with separate development and production environments.
 Worked with environment variables and environment-specific configuration.
Online Shooter Game | Personal Unity Project
 Developed an independent online multiplayer shooter game using Unity and C#.
 Implemented gameplay logic and game mechanics using Unity scripting APIs.
 Worked with Unity GameObjects, components and C# scripting.
 Gained practical experience with game development workflows and real-time gameplay systems.
EDUCATION
National Aerospace University — “Kharkiv Aviation Institute”

Bachelor's Degree — Information Systems and Technologies
Educational Program: Artificial Intelligence and Information Systems

Additional university coursework included Unity, Blender, software development, programming paradigms, OOP, functional
programming, databases, software architecture, and fundamentals of LLM technologies.

LANGUAGES
Ukrainian — Native | Russian — Native | English — Intermediate (B1)