Vladimir HlobchastyiVladimir HlobchastyiSenior Software Engineer

Senior Software Engineer · Web and Mobile

I help teams build and improve complex web and mobile products.

I'm Vladimir, a Senior Software Engineer with 5+ years of commercial experience. My core expertise is frontend engineering with React, Next.js, TypeScript, and React Native.

I can take a feature from an unclear requirement to a production release: define the flow, build the interface, connect APIs and integrations, and handle the states that appear in real use.

What I can own

The product flow, the interface, and the systems behind it.

Frontend is my main area, but I do not stop at the component boundary. I follow the feature through API integration, error states, and release.

Complex frontend systems

React and Next.js applications with business rules, data-heavy screens, reusable UI, and long-term maintenance.

  • Dashboards, subscriptions, onboarding, forms, maps, and realtime interfaces.
  • Clear state ownership and feature boundaries that keep new work predictable.
ReactNext.jsArchitecture

Web and mobile delivery

Web and mobile versions of the same product, with consistent flows and platform-specific behavior where needed.

  • React Native delivery with attention to platform behavior and performance.
  • API states, device behavior, and release readiness handled as part of the feature.
ReactReact NativeTypeScript

Integrations and codebase recovery

I connect product features to the services behind them and make unstable code safer to change.

  • Auth, payments, realtime, maps, monitoring, REST, and GraphQL integrations.
  • Targeted refactoring of unstable or AI-generated code without a blind rewrite.
IntegrationsRefactoringAI-assisted

How I work

I keep the work clear from requirement to release.

Before I code, I clarify the flow and edge cases. During implementation, I stay close to product, design, and backend so problems are solved once, not passed between people.

Agree on the behavior before coding

I clarify the flow, the data, and what the team will consider complete.

  • Fewer assumptions hidden inside the interface.
  • An architecture based on actual use, not imagined scale.

Build the states users actually meet

Loading, empty, error, permission, and mobile states are part of the feature from the start.

  • No demo-only behavior that breaks in normal use.
  • Performance and accessibility included in implementation.

Stay close to the team during delivery

I keep product, design, and backend decisions connected while implementation moves.

  • Clear contracts, edge cases, and trade-offs.
  • Less rework during integration and release.

Tools and platforms

Frontend is my core. I work across the stack when the product needs it.

I use these technologies in commercial projects. Backend, data, mobile, and integration experience lets me finish features without unnecessary handoffs.

Frontend and web

Where I do most of my architecture and product interface work.

  • React
  • Next.js
  • TypeScript
  • JavaScript
  • TanStack Query
  • Node.js
  • Express.js

Backend and data

For API contracts, data flow, and integration boundaries.

  • GraphQL
  • REST APIs
  • Supabase
  • PostgreSQL
  • MongoDB
  • Prisma

Mobile and integrations

For cross-platform delivery and the services around it.

  • React Native
  • Ionic
  • Expo
  • Capacitor
  • Stripe
  • Mapbox
  • WebRTC
  • Sentry