Mobile development

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About this service

Summary

I help brands and startups bring their ideas to life through high performing mobile and web applications. With over 9 years of experience as a Full Stack Developer and a sharp eye for design, I bridge the gap between functionality and aesthetics by delivering smooth, scalable digital experiences that feel as good as they look.

What's included

  • High-Quality Codebase

    Clean, maintainable, and scalable code written in JavaScript/TypeScript for both frontend (React/React Native) and backend (Node.js, GraphQL, Firebase).

  • Fully Functional Mobile App

    A responsive and cross-platform app ready for launch, tested across multiple devices and operating systems.

  • UI Implementation or Redesign

    Pixel-perfect implementation of UI designs, animations, and micro-interactions that align with your brand’s identity.

  • CI/CD Setup

    Automated deployment pipelines using Bitrise, Fastlane, or GitHub Actions to streamline testing and publishing.

  • API Integrations

    Robust integrations with third-party APIs or custom-built GraphQL endpoints for seamless app functionality.

  • Bug-Free Experience

    Thorough QA testing and debugging to ensure smooth user experiences.

  • Launch Support & Handover

    Support during the app or site launch, plus comprehensive documentation and a walkthrough for future maintenance.

  • Ongoing Support

    Continued support post-launch for updates, feature additions, and optimizations.

Recommendations

(5.0)

Chip Talbert

Client • Nov 1, 2025

It was an absolute pleasure working with Valerija. 10/10 across the board including patience working with someone who doesn't know much of anything about coding an app (me).

Petar Avramoski • Suraces Studio

Client • Oct 14, 2025

I’ve had the pleasure of collaborating with Valerija on several projects, including Summit Navigator. With extensive experience she brings a strong mix of technical expertise and efficiency, always delivering stable, intuitive, and well-structured products. She’s an excellent collaborator open to suggestions, thoughtful in her feedback, and always focused on improving the overall product. I’d highly recommend her to any team looking for a reliable and talented engineer.

Beverly Pell • DuoFeed

Client • Sep 20, 2025

Valerija brought DuoFeed from prototype to TestFlight with skill and reliability. Great communicator, problem-solver, and collaborator. Highly recommend!


Skills and tools

iOS Developer

Mobile Engineer

Software Engineer

Git

Git

JavaScript

JavaScript

MongoDB

MongoDB

Node.js

Node.js

React Native

React Native

Industries

Healthcare
Travel & Tourism
FinTech & Payments