Nikita

Nikita Afanasiev Full‑Stack Software Engineer with hands‑on experience in building and
modernizing web applications across both frontend and backend.
Software Engineer
Proficient in React, TypeScript, Django, and Spring Boot, with strong
 Remote
skills in microservices architecture using Docker, Redis, and Celery.
 [відкрити контакти](див. вище в блоці «контактна інформація»)
Delivered event‑driven webhook integrations, scalable CI/CD pipelines,
 https://capybara.cx.ua
and AI‑powered conversational flows using LangGraph and
asynchronous task orchestration to enhance system performance and
user experience.
Skills

Front-End
React, TypeScript, Vite,
Profiles
Tailwind CSS, SCSS, Chakra UI,
Storybook, i18n LinkedIn Github

Back-End Experience
Django, Spring Boot, Hono
Meduzzen March 2024 - April 2024
Databases Frontend Developer Remote
PostgreSQL, MySQL, Redis  https://meduzzen.com/

Tools Developed key website components using React and TypeScript,
Docker, Github Actions, Husky, improving overall UI consistency.
Jira, Bitbucket Integrated Axios and Redux for efficient data management.

Testing Contributed to a project aimed at enhancing company management
JUnit, Jest, Playwright and quiz creation functionalities.

Languages WinWin.Travel May 2024 - Dec 2024
Frontend Developer Remote
Ukrainian
Fluent  https://www.winwin.travel/
Improved mobile user retention by 20% by optimizing website
Russian
responsiveness across multiple devices using React and TypeScript.
Fluent
Reduced filter selection time by 50% by developing a real-time chat
English
system using WebSockets, enabling seamless communication
B2
between users and AI.

Implemented an interactive onboarding tutorial, boosting new user
engagement by 30%.
Utilized React, TypeScript, and Vite to optimize performance and
accelerate development cycles.

Utilized Jira and Bitbucket for task management and version control
within a cross-functional team environment.

Freelance Dec 2024 - Feb 2025
Software Engineer

Refactored gateway microservice logic within Docker‑container
infrastructure to support event‑driven webhook architecture for
secure balance synchronization after blockchain transactions.

Integrated external API callbacks to deliver real‑time balance
updates, reducing client‑side desyncs by ~40%.
Enhanced inter‑service communication and scalability using Redis
and Celery for asynchronous task orchestration.

Implemented a LangGraph‑based conversational engine enabling a
celebrity‑persona Telegram bot that interacts like a friend.

Integrated Redis + Celery workers to manage asynchronous chat-
memory and selfie image generation via Midjourney API.
Automated persona‑specific selfie generation outputs to improve
engagement through API triggers.

Massive March 2025 - June 2025
Frontend Developer Remote

Spearheaded the complete modernization of a legacy project into a
high-performance web-application, increasing development
efficiency by an estimated 50%.

Architected and implemented a robust component library using
Storybook, which significantly improved UI consistency and
accelerated feature deployment.
Boosted application performance by 40% by implementing strategic
lazy loading for pages and assets.
Established a comprehensive, multi-layered testing pipeline with
Playwright and Jest, and optimized CI/CD workflows to reduce
execution times by 50%.

Engineered core user-facing features from the ground up, including
a secure authentication system with Firebase and a dynamic data
table interface with TanStack React Table.

Education

Kharkiv Radio Engineering Applied College Professional Junior Bachelor
Computer Science

National Technical University "Kharkiv Polytechnic Bachelor Degree
Institute"
Computer Science

Projects

Alexandria Nov 2023 - Feb 2024
 Github
Alexandria – A platform designed to streamline communication between
students and teachers by integrating assignment management, flexible
scheduling, teacher directories, and discussion boards into a single
interface.
Developed using Angular, Spring Boot, and PostgreSQL to ensure a
scalable and efficient solution.
Implemented Docker for smooth deployment and leveraged Trello
to coordinate with the team I led, resulting in a 60% faster project
turnaround than other teams.

Enhanced the user experience by designing an intuitive interface
that increased user engagement by 20%.

Volunteering

National Technical University "Kharkiv October 2024 - February 2025
Polytechnic Institute" Remote
Frontend Team Lead
Implemented responsive and visually appealing layouts for various
website components.

Lead a student team of designers and developers to ensure
consistent design and functionality.
Performed a code review of the other developers' pull request