You will get a web application prototype
Project details
You will get a web application prototype based on React.js and Node.js frameworks, which makes it super flexible for further development. As an option, it can be based on Google Firebase, which will reduce a significant amount of time on backend development and will bring you a lot of cool Google features available out of the box. I have responsive included in all packages, as nowadays in 99% of cases you need your app to be supported on mobiles.
I have over 7 years of experience, which I bring here to make sure you get what you want and within a reasonable timeline and budget!
I have over 7 years of experience, which I bring here to make sure you get what you want and within a reasonable timeline and budget!
Programming Languages
JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTMLWhat's included
| Service Tiers |
Starter
$999
|
Standard
$1,890
|
Advanced
$3,600
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 20 days |
Number of Revisions | 1 | 1 | 1 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | ||
Content Upload | |||
Responsive Design | |||
Source Code |
Frequently asked questions
About Petro
Senior React TypeScript Engineer | Performance | Product Engineering
100%
Job Success
Lviv, Ukraine - 11:06 pm local time
My core specialty is React and TypeScript, backed by 12+ years of JavaScript experience. I take ownership of complex frontend and product-engineering problems: slow rendering, unstable state management, difficult-to-maintain codebases, real-time features, and ambitious product requirements that need a pragmatic technical path forward.
My strongest areas are:
* React and TypeScript development for established products and MVPs
* Frontend performance: diagnosing slow renders, unnecessary re-renders, state-management issues, and inefficient data flows
* Product-focused frontend engineering: complex workflows, business logic, API integrations, and data-heavy applications
* Real-time and browser-based features: WebSockets, WebRTC, and interactive tools
* Improving reliability in existing React or JavaScript codebases without unnecessary rewrites
* Breaking product requirements into clear technical steps and delivering independently
I am comfortable owning a feature or problem end to end: clarifying the goal, identifying technical constraints, proposing a pragmatic approach, and communicating trade-offs early. I focus on solutions that move the product forward, not on adding process for its own sake.
My primary stack includes React, TypeScript, JavaScript, Next.js, Node.js, AWS, Firebase, REST/GraphQL APIs, WebSockets, WebRTC, Cypress, Jest, and React Testing Library. I can also work with and extend existing PHP/Laravel codebases when a product requires frontend and backend coordination.
I use modern AI tools daily to work efficiently, while keeping engineering judgment and code quality at the center.
I am a good fit for founders, CTOs, and product teams that value senior ownership, clear communication, and steady progress over constant urgency or micromanagement.
If you have a web product that needs to become faster, more reliable, or easier to evolve, feel free to reach out with the context and desired outcome.
Steps for completing your project
After purchasing the project, send requirements so Petro can start the project.
Delivery time starts when Petro receives requirements from you.
Petro works on your project following the steps below.
Revisions may occur after the delivery date.
Gather requirements
We do an intro call and discuss the app requirements you have
App development
Based on the requirements and designs I start the app development and keep you updated on each step