👨🏻‍💻 postech.work

React + React Native Developer

unknown-company • 🌐 Remote

Remote Posted 2 days, 7 hours ago

Job Description

React + React Native Full-Stack Frontend Developer

(Web \& Mobile \| Fintech / Payments / E-commerce)

Experience: 3–5 Years

Location: Hybrid

- Role Overview

We are looking for a highly skilled React + React Native Full-Stack Frontend Developer to build secure, scalable, and high-performance web and mobile applications in the fintech, payment, and e-commerce domain.

The ideal candidate must have strong experience in React (Web) and React Native (Mobile), with hands-on exposure to payment gateway integration, cloud services (S3/Blob), app store publishing, and compliance-driven development.

This role requires ownership mindset, performance focus, and deep understanding of frontend architecture for high-transaction systems.

- Key Responsibilities

Web \& Mobile Application Development

Design, develop, test, deploy, and maintain scalable applications using React (Web) and React Native (Android \& iOS).

Implement robust state management using Redux.

Translate wireframes and UI/UX designs into high-quality, maintainable, and production-ready code.

Ensure cross-browser compatibility (Web) and cross-platform compatibility (Mobile).

Payment \& Fintech Integration

Integrate secure payment gateways (e.g., Stripe, Razorpay, PayPal, etc.).

Implement secure payment workflows including tokenization and encrypted transactions.

Handle transaction success/failure flows and reconciliation UI.

Cloud \& API Integration

Integrate RESTful APIs with backend services.

Integrate cloud object storage services (AWS S3 / Azure Blob Storage).

Handle secure file uploads, document storage, and retrieval mechanisms.

Security \& Compliance

Ensure compliance with fintech security best practices.

Implement:

JWT / OAuth-based authentication

Secure token storage

Encryption in transit (HTTPS)

Follow secure coding standards for handling sensitive financial data.

Mobile Build \& Release Management

Create production builds for Android and iOS.

Manage certificates, provisioning profiles, app signing.

Publish and manage releases on:

Google Play Store

Apple App Store

Handle version upgrades and hotfix releases.

Performance \& Scalability

Optimize applications for:

High transaction volumes

Low latency

Fast load times

Implement:

Code splitting

Lazy loading

Memoization

Efficient state updates

Ensure scalability for growing user base.

Quality \& Best Practices

Write unit tests using Jest or similar frameworks.

Participate in code reviews and enforce coding standards.

Follow Git workflows (branching, pull requests, code reviews).

Contribute to CI/CD pipeline improvements.

Troubleshoot and debug complex frontend issues.

Collaboration

Work closely with product managers, UX/UI designers, and backend engineers.

Mentor junior developers.

Contribute to architecture discussions and technical decision-making.

Promote a culture of clean code and continuous improvement.

- Required Technical Skills

Core Frontend Skills

3–5 years of strong hands-on experience in:

React (Web)

React Native (Mobile)

Strong expertise in:

Hooks

Context API

Redux

React Router / Navigation libraries

Deep understanding of asynchronous programming (Promises, async/await)

API \& Backend Integration

Experience consuming RESTful APIs

Handling authentication \& authorization flows

Error handling \& retry mechanisms

Testing \& Build Tools

Experience with Jest (Web \& Mobile)

Proficiency with modern build tools (Webpack, Vite, Metro bundler)

Experience with Git and Git workflows

Exposure to CI/CD pipelines

Security \& Compliance

Experience implementing secure payment integrations

Understanding of:

OAuth / JWT authentication

Secure storage mechanisms

Financial data handling best practices

- Nice to Have

Experience in fintech, wallet, lending, or high-transaction e-commerce platforms

Knowledge of push notifications (Firebase/APNS)

Experience with performance monitoring tools

Exposure to analytics integration

- Soft Skills

Strong problem-solving and analytical skills

Ownership and accountability mindset

Ability to work in Agile/Scrum environments

Strong communication and collaboration skills

Ability to mentor and guide junior developers

- What We Value

Clean, maintainable, scalable code

Security-first thinking

Performance-focused engineering

Business understanding of payment and transaction flows

Continuous learning mindset

Job Type: Full-time

Pay: ₹313,907.81 - ₹1,402,650.03 per year

Benefits:

Paid sick time

Paid time off

Provident Fund

Work from home

Application Question(s):

What is your expected CTC?

Experience:

React: 1 year (Required)

React Native: 1 year (Preferred)

Work Location: Hybrid remote in Pune, Maharashtra (Pune)

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