Oleksii Latyshev

Full-stack JavaScript & TypeScript Developer · Kharkiv, Ukraine · Remote

Experienced Full-stack Developer specializing in the TypeScript ecosystem (Next.js, React Native, Nest.js). Capable of driving projects through the entire software development lifecycle—from scalable frontend architecture to robust database optimization and AWS cloud deployment.

GitHubLinkedInTelegram

Experience

Commercial

Midstem — Full-stack developer

  • Drastically reduced React Native app loading times for key screens from 3-5 seconds to under a second, significantly improving overall user experience.
  • Boosted Next.js application performance, achieving an increase in PageSpeed score from 68 to 98 through comprehensive optimization strategies.
  • Built multiple scalable Next.js applications from the ground up, effectively leveraging CSR, SSR, SSG, and ISR rendering strategies.
  • Designed the complete UI/UX for an e-commerce platform using Figma, building scalable component libraries and maintaining a consistent design system.
  • Engineered and integrated the core business logic for in-app subscription purchases within a React Native application.
  • Architected and deployed a robust RESTful API backend, featuring advanced webhook integrations.
  • Optimized PostgreSQL and MySQL database performance by implementing strategic indexing, restructuring tables, and refining complex queries.
  • Streamlined development workflows and deployment by configuring CI/CD pipelines and highly available AWS infrastructure (S3, CloudFront, Route 53) across multiple projects.
  • Drove Agile processes by leading sprint demonstrations, structuring tasks, and proactively resolving technical blockers during sprint planning.
  • Mentored junior Frontend developers and conducted comprehensive code reviews to ensure code quality and foster team growth.
TypeScriptNext.jsReactReact NativeNest.jsPostgreSQLMySQLPrisma ORMAWS (S3, CloudFront, Route 53)DockerTailwind CSSZustandRedux Toolkit

Education

Academic

Kharkiv National University of Radio Electronics

Master's degree · Computer Science Specialization

Kharkiv National University of Radio Electronics

Bachelor's degree · Computer Science Specialization

Kharkiv Patent-Computer College

Junior Specialist · Software Engineering Specialization

Personal Projects

04 Applications

Alongside commercial engineering, I craft open-source tools and web applications exploring WebAssembly in the browser, real-time multiplayer networking, and developer ergonomics.

Interactive Applications Showcase

Independent Software & Labs

Explore all 4 applications
disapoly.pages.dev● Live
DISAPOLY4 Players
Real-time WebSockets
english-trainer.devSRS
English Trainer interface
disalytics.devWASM Engine
Disalytics CS2 Demo Analyzer interface
Rust & WASMWebSocketsCloudflare WorkersReact 19
Click to open gallery →