Senior Frontend Developer

Web React Native and React JS Developer

Key Responsibilities:

• Develop and maintain mobile applications using

  React Native

  and web applications using

  React JS

  .
• Work closely with backend engineers to integrate secure

  payment gateways

  ,

  backend service apis

  and ensure smooth user transactions.
• Implement and enforce

  API security protocols

  (e.g. JWT, encryption techniques) to protect user data and ensure secure communications.
• Collaborate with UX/UI designers to ensure the apps are user-friendly and responsive across mobile and web platforms.
• Implement secure authentication, authorization, and session management for payments-related features.
• Optimize applications for speed, scalability, and responsiveness while ensuring robust security practices.
• Conduct thorough code reviews to maintain high code quality and secure coding practices.
• Work within an Agile environment and collaborate with product managers to ensure timely delivery of features.
• Keep up to date with the latest web and mobile security threats and best practices, including Payment Card Industry Data Security Standard (PCI DSS) compliance.
• Troubleshoot, debug, and resolve issues related to payment transactions, API security, and app performance.

Required Qualifications:

• Experience with React JS and React Native

  : Proven experience in building and maintaining responsive web and mobile applications using React and React Native.

• Payments Integration Experience

  : Strong understanding of integrating payment systems. Experience with

  transaction security

  .

• API Security Expertise

  : In-depth knowledge of API security protocols, including but not limited to:
• Authentication mechanisms (e.g., JWT)
• Data encryption (e.g., HTTPS, TLS/SSL)
• Rate limiting and request validation
• Preventing

  Cross-Site Scripting (XSS)

  and

  SQL Injection

  attacks
• Understanding of PCI DSS compliance and secure handling of sensitive payment data

• Frontend Development

  : Strong skills in

  JavaScript

  (ES6+),

  TypeScript

  ,

  HTML5

  ,

  CSS3

  , and responsive design principles.

• State Management

  : Experience with state management libraries like

  Redux

  ,

  MobX

  , or

  Context API

  .

• Version Control

  : Proficiency in Bitbucket for version control.

• Testing & Quality Assurance

  : Experience with unit and integration testing frameworks like

  Jest

  ,

  Mocha

  ,

  Enzyme

  , or similar.

• Secure Coding Practices

  : Knowledge of secure coding techniques and best practices for web and mobile applications.

• Experience with Agile

  : Familiarity with Agile/Scrum methodologies and working in fast-paced, collaborative environments.

Preferred Skills:

• Cloud Platforms

  : Experience working with cloud services such as

  AWS

  for secure storage and processing of payment data.

• CI/CD

  : Familiarity with Continuous Integration/Continuous Deployment (CI/CD) pipelines and tools to automate secure deployments.

• Additional Programming Languages

  : Experience with backend technologies like

  Node.js

  ,

  Python

  ,

  Java

  , or

  Go

  is a plus.

• UX/UI Design

  : Understanding of UX/UI principles, particularly for designing secure payment interfaces.