OLEKSII PASKO

✔Developed and maintained the web application using Python / Django and JavaScript. ✔Designed the RESTful APIs using the Django REST Framework. ✔Designed and implemented a scalable microservices using Flask architecture that reduced response times by 30%. ✔Created GraphQL APIs using Django and Flask for data exchange between the server and React-based front-end. ✔Integrated databases such as PostgreSQL and MongoDB to store and retrieve data efficiently. ✔Designed and implemented microservices architecture. ✔Wrote comprehensive unit, integration, and end-to-end tests that caught over 80% of potential bugs before deployment. ✔Proactively monitored cloud performance, identifying, and resolving security and reliability issues. ✔Integrated Stripe APIs into the application, resulting in a 20% increase in online payments. ✔Deployed serverless applications using AWS Lambda and DynamoDB, reducing infrastructure costs by 20%. ✔Conducted thorough code reviews, mentored junior developers, and fostered a culture of continuous learning and improvement, resulting in a 10% increase in team productivity.

✔Integrated various APIs including REST, GRPC, GraphQL, and WebSocket into cloud solutions. Managed a cluster of PostgreSQL databases on AWS RDS and used Databricks for big data processing and analytics tasks. ✔Utilized Python for back-end development and data manipulation tasks. ✔Designed and developed microservices using Flask and FastAPI. ✔Worked in an agile team to deliver high-quality software on schedule. ✔Assisted in front-end development using JavaScript, HTML5, and CSS5. ✔Gained experience in using React.js for creating dynamic and responsive web applications. ✔Utilized Git for version control and collaborated with team members via GitHub.

✔Worked with front-end teams to create seamless user experiences. ✔Developed robust, scalable Python microservices and JavaScript single-page applications for a SaaS product with over 100,000 users. ✔Assisted in the development of web applications and platforms using JavaScript and early versions of Node.js. ✔Assisted with AWS management and application deployment. ✔Ensuring the application is maintainable, scalable, and testable. ✔Designed and implemented a serverless architecture using AWS Lambda, API Gateway, and DynamoDB, achieving high availability and scalability.

✔Developed server-side logic using Python and Django, handling high-volume requests efficiently. ✔Built RESTful APIs and integrated third-party APIs, enabling smooth data flow between frontend and backend. ✔Implemented SQLAlchemy for object-relational mapping (ORM) with Python & SQL / PostgreSQL ✔Wrote comprehensive unit tests using Jest and Enzyme, maintaining over 90% code coverage.