I helped grow a mental health assistant startup by developing and publishing React Native apps to almost hundreds of thousands of users. Responsibilities:- Development and support of iOS, Android and Web applications. - Smooth and responsive interface with nice animations. - Integration of metrics from different analytics tools to track performance and errors. - Reaserch and integrated with a backed team cost-effective and performant real-time API solution. From websockets to third-party providers. - Performed endless fast iterations on design concepts, onboarding experience, overall app features and strategy searching.- Continuous delivery to App Store and Google Play.- The app has offline functionality with cooperation between state management and reactive DB.- The code base is well-structured with TypeScript and tests.- Collaboration with a team of founders, designers, backend team on product vision, features and product backlog.

I work on different projects as a self-employed person. My technological stack mostly consists of React, React Native, various state libraries, PostgreSQL, Node.js, AWS, Azure, Google Cloud and Firebase, GraphQL (Prisma, Hasura), TypeScript.The types of projects I have worked on include:- A React Native mobile app for men’s health- A website constructor for apartment renovation and wallpaper selection- An admin dashboard to manage addresses- A complete rewrite of the Services Booking system to a new stack and design (Next.js)

In communication with the founders and Product Owner, I was responsible for leading the development of a startup MVP. This included developing a React Native mobile app, a React admin dashboard, and an app backend. I cannot provide any business description due to NDA.My main responsibilities were:- Architecting the user mobile application and business-side dashboard.- Developing the React Native app.- Prioritising the product backlog and working side by side with the development team, product owner, and stakeholders.- Conducting code reviews, implementing CI/CD, and setting up basic cloud infrastructure.

I led a team of developers, designers with product owners in creating a multi-tier real-time Services Booking system from the ground up. The system includes: - A user-friendly website where customers can bookand pay for services- A CRM SaaS app for businesses to manage clients, services, prices, employees, and real-time calendars of events and time slots. The system is integrated with a payment provider and offers additional features for streamlining business operations.- Admin Dashboard for managing companies registrations. Monitor status of registered businesses. Option to block or hide businesses from listings. Ensure completion of required information and handle negative responses.As a co-founder, I oversaw all aspects of product strategy, design, development, payment integrations, and cloud infrastructure.

Main roles: I worked as a full stack developer and solution architect on both internal and outsourced projects. I collaborated closely with top management on planning and vision.This projects was built from scratch:- A company-wide system based on rank to propose and discuss ideas and projects.- Сompany brand new website.- Mobile application for indoor navigation.Other for example:- Proposals writing- Web crawler and database data migration

I have successfully taught JavaScript and frontend courses with a high rate of attendees’ employment or promotion.

Worked mainly on developing the backend with some frontend involvement on enterprise projects that required coordination across a widespread team.

Had the opportunity to be on-site and learn from mobile teams on major projects for MTV Networks and other companies.Specifically, gained experience with both iOS and Android platforms.