getacorn.com - app for parents to help them to search, book and pay children activities. Platform for activities providers to manage schedule, bookings, and payments.

• Developed backend with microservices architecture using gRPC framework for services communication.

• External services integration (Google APIs, Auth0, Stripe, etc).

• TDD: unit testing, integration tests, functional tests.

• Monitoring project health and availability.

• Architect and develop REST API for mobile apps and web; writing documentation (OpenAPI); support API versioning with backward compatibility.

• Implement full CI/CD cycle to Kubernetes clusters in GCP.

• Admin panel development: TypeScript, React, Redux; participate in public web sites development.

• Technical leadership: architecture decisions, managing and teaching a team, code review, hiring.

An online distribution platform for fitness and lifestyle content by creating, editing and sharing individual workouts.

• Designed and developed backend using Django framework.

• REST API for mobile apps with versioning, fully documented and tested.

• Integration with video uploading and streaming backend.

• Integration with Stripe payments and subscriptions.

• Admin panel development: JavaScript, React, Redux.

Educational training online portal.

• Design, development, and support of web portal and e-shop.

• Development of web online multiplayer games with custom control hardware (USB joystick).

• People management (employees, freelancers).

Full-cycle of industrial security, fire alarming and firefighting systems development and production.

• Hardware and firmware development of industrial security and fire alarm system and other radio electronic equipment.

• Schematic design and hardware prototypes.

• Firmware for microcontrollers including industrial low-level networking protocols.

• Development of USB drivers and software for the electronic devices.