Nikita Oleynikov
Private message
Offer work
Valencia,
Spain
1 year back
available for hire
on the service 1 year
Rating
Successful projects
Average rating
CV
I can do frontend for you:
- HTML/CSS
- Tailwind CSS
- JavaScript/TypeScript
- React/Next
- Vue/Nuxt
- Svelte/SvelteKit
I can do backend for you:
- Python / Django / Flask / FastAPI
- Go
- JavaScript / Express.js
- Java / Spring Boot
I can do more than that for you:
- Telegram bots
- Web scrapping
Skills and abilities
Portfolio
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Automated web bot for flaying poker
The client provided me with an API service that, upon receiving information about the current state of the game table, returned the best recommended action. To develop the solution, I used Puppeteer.js as the main tool for browser automation. The bot was capable of automatically reading the state of tables across different online poker platforms in real time. It made decisions and placed bets automatically according to the recommendations from the API service. To evade anti-bot detection systems, the bot simulated realistic mouse movements and incorporated variable reaction times, introducing random delays into its actions to closely mimic human behavior. Additionally, I implemented an AI-based communication module that responded naturally to messages in the chat and strategically used emojis to influence the dynamics at the table. The bot was built with a modular architecture through the use of adapters: the core logic remained consistent, while specific adapters were developed for each poker website to handle interactions with their particular interfaces.
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Bot for automating web actions based on puppeteer
I developed a web bot using Puppeteer that monitors in real time user events in a web-based video game, such as the appearance of new messages in a chat, and automatically executes the necessary actions without human intervention. The bot connects to page events and dynamically responds to new data or activities from other users, eliminating the need to manually wait for updates.
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Mobile application for workday track
Javascript and Typescript
In this project, I handled the entire development cycle, from initial planning to final delivery:
● I designed and adapted the interface for mobile platforms.
● I designed and developed the backend using Express.js along with Sequelize ORM and PostgreSQL as the main database. The server architecture was designed to be scalable, secure, and high-performance.
… ● I implemented the frontend using Expo (a layer on top of React Native) to simplify publishing on mobile platforms.
● For building the user interface, I used Gluestack UI, a modern framework based on Tailwind CSS optimized for mobile devices.
● After completing development, I manually deployed the application on the client's AWS infrastructure: I configured the server on AWS EC2, the database on AWS RDS, and managed file storage via AWS S3. I also set up the environment, HTTPS certificates, and backup systems.
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Custom MITM proxy
Javascript and Typescript
I developed a custom proxy in Node.js, enhancing an existing library to intercept traffic and manage network access through built-in authentication. The proxy dynamically modified specific websites (over 60 pages) to optimize their usage. I used JavaScript and SQLite to manage user states, store sessions, and improve performance through caching.
Activity
| Latest proposals 7 | Budget | Added | Deadlines | Proposal | |
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Java developer (Spring Boot) needed
1800 USD
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Looking for a programmer for development on next.js
50 USD
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Website
274 USD
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Creating a website for carpenters with built-in functionality from CABINET VISION Design
5000 USD
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Refine the text generation script using GPT — add asynchronicity. NodeJS, LangChain
150 USD
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Setting up notifications for telegram
34 USD
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Trade bot. Twitter, Crypto exchanges
2324 USD
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