Alexey Sergeevich

As a portfolio, I provide projects that I worked on and successfully completed, taking into account NDA restrictions and work on prototypes.

I have hands-on experience developing mobile applications using React Native.

I work with React Native via both CLI and Expo.

I use TypeScript and JavaScript in production projects.

I also develop mobile applications using Flutter.

I design and implement the server-side architecture of applications.

I use NestJS, Fastify, and Express for backend development.

I have experience developing services in Go.

I work with ORM tools and relational databases, including PostgreSQL.

I design APIs and documentation using Swagger and similar tools.

I have practical experience with DevOps approaches.

I have worked with Kubernetes and clustered infrastructures.

I configure environments, CI/CD pipelines, and service network interactions.

I perform optimization, debugging, and stabilization of projects.

I bring solutions to a level that meets corporate requirements.

I work without unnecessary promises or abstractions: I take on a task, propose a technically sound solution, and bring the project to a stable and maintainable state.