Fedor A.

Backend development; Developed and optimized the database architecture to efficiently store and retrieve data about specialists and services; Built a backend application using the Gin framework to provide platform functionality; Designed and implemented a REST API, enabling interaction between specialists and clients; Designed and optimized microservices architecture; Implemented functionality to interact with PostgreSQL databases to store collected data, including database schema design, query optimization, and data reliability; Analyzed and predicted system load to optimize resources and ensure stable performance; Configured and managed containerization using Kubernetes, including setting up Helm Charts for deploying and scaling microservices; Implemented security mechanisms to protect backend services and data to ensure compliance with industry standards and regulations; Designed and implemented monitoring solutions using Grafana and Prometheus; Implemented search and filtering mechanisms using ElasticSearch; Developed an authentication and authorization system to ensure data security and access to platform functionality; Configured CI/CD pipelines to automate deployment processes, ensuring smooth and consistent releases using Gitlab CI/CD; Integrated Argo CD with Gitlab CI/CD to automate the deployment process and ensure consistency across different environments; Configured and managed Sentry to ensure timely alerts for critical issues in the data crawling process; Fine-tuned event-driven responses to ensure optimal performance and responsiveness; Set up Datadog for comprehensive monitoring of system performance, resource utilization, and application metrics; Implemented notification part using GCP Pub/Sub; Implemented serverless part using GCP Cloud Functions; Designed document workflow (storing, replacing, uploading) on GCP Cloud Storage; Conducted code reviews to maintain code quality and consistency within the development team; Participated in Agile development processes, including sprint planning, daily stand-ups, and retrospectives.

Developed and optimized the database architecture to efficiently store and retrieve data about specialists and services; Built a backend application using Gin; Designed and implemented REST API, enabling interaction between specialists and clients; Designed and implemented MySQL database schemas; Utilized GCP Pub/Sub for order and appointment processing, ensuring timely and reliable message delivery; Stored images via Google Cloud Storage; Implemented search and filtering mechanisms; Developed an authentication and authorization system to ensure data security and access to platform functionality; Configured CI/CD pipelines to automate deployment processes, ensuring smooth and consistent releases using Gitlab CI/CD; Set up and managed Artifact's registries within Google Cloud Platform for version control; Leveraged Cloud Artifact's registries for storing and retrieving dependencies and artifacts used in CI/CD pipelines; Fine-tuned event-driven responses to ensure optimal performance and responsiveness; Conducted code reviews to maintain code quality and consistency within the development team; Participated in Agile development processes, including sprint planning, daily stand-ups, and retrospectives.

Developed the backend for a platform dedicated to real estate transaction statistics collection, based on the Gin; Integrated with a geocoder API to enhance location data in transactions; Optimized backend performance and scalability; Efficiently integrated with a geocoder to improve geographical data accuracy; Automated the data import and analysis process for workflow optimization; Implemented data processing logic to handle structured, semi-structured, and unstructured data formats in PySpark; Designed and maintained REST APIs for client-side interaction with the accounting system; Implemented task dependencies and scheduling to ensure sequential execution of data pipeline steps in Airflow; Developed an authentication and authorization system to ensure data security and access to platform functionality; Configured CI/CD pipelines to automate deployment processes, ensuring smooth and consistent releases using Gitlab CI/CD; Set up and manage CI/CD pipelines using Gitlab CI/CD; Implemented processes for publishing artifacts generated during the CI/CD pipeline to the artifact registry; Identified and resolved bugs to ensure platform stability and data quality; Conducted code reviews to ensure code quality, readability, and adherence to coding standards; Engaged in sprint planning sessions, actively contributing to the assessment and prioritization of user stories within the Jira backlog; Refactored code to enhance readability, performance, and adherence to best development practices.

Backend development; Developed and optimized Go-based backend system; Implemented security best practices to safeguard sensitive customer information; Integrated with third-party payment system services to facilitate secure and convenient financial transactions; Developed and maintained REST API for seamless data exchange with the platform's client-side, ensuring efficient data transfer; Designed and developed structure and queries in MongoDB to support the e-commerce platform's functionality, including inventory management and order processing; Designed and optimized the database to store transactions, orders, and user information; Developed and maintained data models, ensuring data integrity and performance in PostgreSQL; Implemented user authentication and authorization, ensuring data security and confidentiality; Integrated with CRM and Enterprise Resource Planning (ERP) systems to automate business processes; Configured CI systems for automated application builds and testing; Wrote and maintained backend documentation on the Confluence; Configured CD systems for automated application deployment; Developed a microservices architecture for modularity and scalability of the backend application; Implemented and maintained robust security measures across the entire platform, ensuring protection against common vulnerabilities and attacks; Documented the API to provide clear and accessible documentation for developers; Developed and maintained Helm charts for application deployment on Kubernetes; Conducted code reviews and refactored code to enhance its quality and maintainability.