ABOUT COMPANY:Development of blockchain analysis tools and investigation of crypto incidentsKEY RESPONSIBILITIES:-Development and maintenance of connectors for algorithmic data analysis in various blockchains- Optimization of existing and creation of new algorithms to ensure high-speed service performance- Research and integration of new technologies into existing services- Development of microservice APIs using FastAPI, including working with HTTP requests and… Show more ABOUT COMPANY:Development of blockchain analysis tools and investigation of crypto incidentsKEY RESPONSIBILITIES:-Development and maintenance of connectors for algorithmic data analysis in various blockchains- Optimization of existing and creation of new algorithms to ensure high-speed service performance- Research and integration of new technologies into existing services- Development of microservice APIs using FastAPI, including working with HTTP requests and WebSocket connections- Automation of the log collection process from key company services to simplify monitoring and analysis- Refactoring of legacy code to improve system quality and reliability- Testing, debugging, and deploying services to productionMY ACHIEVEMENTS:- Responsible for integrating one of the key blockchains – Bitcoin. Developed and implemented microservices from scratch to load and process billions of transactions in real time into a graph database cluster- Created microservices for the statistics and analysis of CoinJoin and regular Bitcoin transactions, as well as counterparties. Implemented a WebSocket microservice to transform data into a graph- Developed microservices for converting raw data from SQL and Neo4j into graph structures for networks like EVM and TVM- Integrated ELK stack for centralized log processing and created an error monitoring service- Optimized algorithms for Bitcoin, TVM, and EVM, which significantly reduced the time needed for statistics calculations- Developed and improved several auxiliary services required for the operation of all key microservices Show less

ABOUT COMPANY:Hosting servers for the adult industry and provider of 18+ content.KEY RESPONSIBILITIES:- Asynchronous web scraping- Automating data exports to target services via API and integrating APIs into workflows- Scaling scraping, analysis, and data uploads- Automating the upload of large volumes of media data and creating multithreaded downloaders- Working with Linux servers, configuring Nginx and Apache- Aggregating and analyzing data in formats such… Show more ABOUT COMPANY:Hosting servers for the adult industry and provider of 18+ content.KEY RESPONSIBILITIES:- Asynchronous web scraping- Automating data exports to target services via API and integrating APIs into workflows- Scaling scraping, analysis, and data uploads- Automating the upload of large volumes of media data and creating multithreaded downloaders- Working with Linux servers, configuring Nginx and Apache- Aggregating and analyzing data in formats such as CSV, XLSX, Google Sheets, and various databasesMY ACHIEVEMENTS:- Developed a service from scratch for scraping and content upload from the Mega file hosting service via the built-in API, using Celery for asynchronous task execution. The service has been running stably for over two months without crashes or errors- Created microservices to automate operations, reducing manual work for employees and enabling efficient process management- Developed microservices to simplify the creation of scraping scripts, including CAPTCHA bypass and media data processing, accelerating the creation and maintenance of scraping scripts- Scraped and uploaded data from over 30 different websites Show less

ABOUT COMPANYA Russian startup with a small team. Engaged in the creation and testing of tools and strategies on the Moscow Exchange and cryptocurrency exchanges.KEY RESPONSIBILITIES:- Preparing historical data and backtesting models- Participating in the development of trading algorithms for various exchanges- Optimizing existing trading algorithms- Market and data analysis- Deploying and monitoring servicesMY ACHIEVEMENTS:- Prepared pricing dynamics… Show more ABOUT COMPANYA Russian startup with a small team. Engaged in the creation and testing of tools and strategies on the Moscow Exchange and cryptocurrency exchanges.KEY RESPONSIBILITIES:- Preparing historical data and backtesting models- Participating in the development of trading algorithms for various exchanges- Optimizing existing trading algorithms- Market and data analysis- Deploying and monitoring servicesMY ACHIEVEMENTS:- Prepared pricing dynamics data from Binance and Huobi exchanges for testing: outliers were corrected, and data was aggregated (Pandas, MySQL)- Developed the architecture of an arbitrage algorithm for Binance and Huobi using exchange APIs, Numpy, WebSocket, Aiohttp, and multiprocessing- Optimized an algorithm in R, increasing the speed of trading iterations by 40x or more- Created microservices for high-frequency trading on cryptocurrency exchanges and the Moscow Exchange Show less