Technologies used: Python, Django, Flask, FastAPI, AWS(Lambda, S3, EC2, RDS), PostgreSQL, Neo4j, Redis. As a backend developer at a fast-paced fintech startup I was responsible for designing and implementing APIs that facilitated seamless communication with financial services, developing a robust, real-time transaction processing system capable of handling high volumes of financial data, including payments and refunds, reports, ensuring both speed and reliability. - I worked closely with cross-functional teams—ranging from frontend developers to data scientists and product managers—to deliver high-performance solutions that met business needs. - My role also involved integrating and maintaining payment gateways like Mastercard and Checkout.com, HyperPay, ensuring secure and efficient payment processing. - In this high-stakes environment, I proactively identified and resolved system bugs, ensuring minimal downtime and uninterrupted financial services, contributing to the success and scalability of the financial services.

- Developed biotech software for IoT devices connected between each other to the laboratory system;- Work with Linux-based system, Linux based embedded hardware, Serial Communication Protocols, Hardware testing tools for IoT space testing;- Designed and implemented server-side solutions with Django framework using multiprocessing, asyncio, multithreading tools, WebSocket protocol, Redis, RabbitMQ, PostgreSQL;- Developed and maintained Web and Hardware APIs.

- BE development using TDD, functional programming in Python;- Analysis, refactoring and developing Neo4j graph database queries;- Improved microservice performance implementing asynchronous code technics.

Effectively contribute in performance improvement projects, develop analysis, engage client teams, and deliver high-quality work products. Monitor progress, shipment scheduling, manage risk and ensure clients are kept informed about progress and expected outcomes.Demonstrate ability to assimilate new knowledge.

Mobile games development for Android using C#, Unity, Google Ads and deployment to the Google Play StoreA small startup for mobile games development.

promoting and marketing the businessdealing with customer queries and complaintsproviding advice about visas or passportsrecruiting, training and supervising staffmanaging budgetsmaintaining statistical and financial recordsplanningmeeting profit or sales targets

- Department management;- Analytics and planning of the sales, productivity and budget data;- Employees's work scheduling, staff training;- Market analysis;- Products merchandising adjustment in order to increase sales;- Planning of goods turnover, orders, stock control;- Sales analysis at the end of each season while identifying shortcomings and the formation of new proposals for improving the product in subsequent seasons;- Interaction with product managers in Spain;- Coordination of the movement of goods between stores in Russia.