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Doing mobile apps
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ksetrin/README.md

Hi there! I'm Peter Evsikov πŸ‘‹

Senior Software Engineer | React Native Specialist

With 7+ years (and 14+ years in IT) of dedicated React Native development experience, I specialize in building high-quality mobile applications for startups and enterprise solutions.

πŸš€ What I Do & Deliver

  • Mobile Architecture Design - Architected apps serving 58K+ active users, handling complex state management and offline-first scenarios
  • Large-Scale Migrations - Led React Native upgrades across codebases with 100K+ lines, zero downtime deployments
  • Production Problem Solving - Debug and resolve critical issues in live applications, including memory leaks and performance bottlenecks
  • Team Technical Leadership - Mentor junior developers, establish coding standards, conduct architecture reviews
  • Full-Stack Development - Build supporting backend services, set up CI/CD pipelines, automate deployment processes with Python scripts

πŸ’Ό Professional Experience

React Native Developer at Mebix (2021 - 2025)
πŸ₯ Digital therapy companion for diabetes and cardiovascular diseases
πŸ“ Germany

Senior Software Engineer at Bamboo Agile (2019 - 2021)
πŸš— Emirates HR, TapCar, Zna.by education platform
πŸ“ Belarus/Remote

React Native Developer at The Red One (2017 - 2019)
πŸ“± Founded mobile development direction, various RN projects
πŸ“ Russia

+ Other positions in software development (2011 - 2017)

πŸ› οΈ Tech Stack

Mobile & Frontend:

  • React Native, React
  • TypeScript, JavaScript
  • Redux, MobX, Context API

Backend & Cloud:

  • Firebase, AWS
  • GraphQL, REST APIs
  • Node.js, Python

Databases:

  • MySQL, PostgreSQL, Redis

Development Tools:

  • Git, CI/CD
  • Testing frameworks
  • AI-powered development tools

🌟 Approach & Philosophy

React Native Focus with System Thinking: Since 2017, I've concentrated exclusively on React Native while maintaining deep JavaScript/TypeScript ecosystem expertise. As a software engineer first, I approach mobile development with full-stack perspective - understanding how apps fit into larger systems, from backend APIs to deployment pipelines.

Technical Leadership: I believe in teaching through code - mentoring developers, establishing patterns, and making architectural decisions that teams can build upon. Having worked across healthcare, automotive, education, and government sectors, I understand that technology choices must serve business objectives, not just developer preferences.

Production-First Mindset: Real applications have real users with real problems. I focus on maintainable solutions that work under pressure - handling edge cases, planning for scale, and designing for the teams who will inherit the code.

πŸ“« Let's Connect

Portfolio LinkedIn Telegram


πŸ’‘ Available for new projects - Let's build something amazing together!

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  1. experiments experiments Public

    TypeScript

  2. interview interview Public

  3. presentations presentations Public

  4. ksetrin.github.io ksetrin.github.io Public

    Notes about React Native

    JavaScript