MERN Stack Developer

MERN Stack Developer - Product Engineering

Location: India (Hybrid)

Role Overview

At Cubic, we build mission-critical, large-scale transportation and mobility platforms used by cities and transit agencies across the world. As a MERN Stack Developer - Product Engineering, you will design and build full-stack web applications that power customer-facing products, internal platforms, and data-driven systems used in real-world transit environments.

This role is ideal for engineers who enjoy product ownership, system thinking, and building software that operates at scale, reliability, and real-world impact.

Key Responsibilities

Product & Application Development

• Design, develop, and maintain full-stack applications using MongoDB, Express. js, React, and Node. js
• Build responsive, accessible, and high-performance frontend applications using React
• Develop secure, scalable backend services and REST APIs
• Translate product requirements into technical designs and working features
• Work on applications that support fare systems, operations dashboards, reporting tools, and internal platforms

Engineering Excellence

• Write clean, maintainable, and testable code following Cubic s engineering standards
• Participate in design discussions, code reviews, and architecture decisions
• Optimize application performance, reliability, and scalability
• Contribute to CI/CD pipelines and deployment readiness
• Debug production issues and support releases in collaboration with cross-functional teams

Collaboration

• Work closely with Product Managers, System Engineers, QA, DevOps, and UX teams
• Collaborate across global engineering teams (India, US, UK, APAC)
• Understand system-level constraints typical of transportation, payments, and regulated environments

Required Skills & Experience

• 3-6 years of hands-on experience in MERN stack development
• Strong proficiency in JavaScript (ES6+)
• Solid experience with React (hooks, component architecture, state management)
• Strong backend development experience using Node. js and Express. js
• Hands-on experience with MongoDB, including schema design and performance considerations
• Experience building and consuming RESTful APIs
• Familiarity with authentication, authorization, and role-based access control
• Experience using Git, code reviews, and Agile development practices