Senior Fullstack Developer (Fintech)

Mobibiz; Mumbai; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Mobibiz in Mumbai, India is seeking a Senior Full-Stack Engineer with 5+ years of professional experience to design, develop, and maintain production-grade systems. The ideal candidate will own both frontend and backend components and collaborate with cross-functional teams to deliver scalable software.

You will work with Node.js on the backend and React on the frontend, deploy via Docker, and use cloud platforms like AWS or GCP.

Qualifications

• 5+ years of professional full-stack development experience.
• Strong backend development experience with JavaScript (Node.js).
• Strong frontend development experience with React.
• Experience working with relational databases such as PostgreSQL or MySQL.
• Experience building and maintaining production-grade systems.
• Strong understanding of Object-Oriented Programming (OOP) or Functional Programming (FP).
• Solid knowledge of clean coding practices and SOLID principles.
• Experience with Docker and containerized environments.
• Experience working with cloud services (AWS or GCP preferred).
• Excellent written and verbal communication skills.

Responsibilities

• Design, develop, and maintain scalable full-stack applications.
• Build robust backend services and APIs using JavaScript (Node.js preferred).
• Develop responsive, high-performance user interfaces using React.
• Work with relational databases such as PostgreSQL or MySQL to design and optimize schemas and queries.
• Contribute to architecture decisions and system design discussions.
• Ensure code quality by following clean coding practices, SOLID principles, and best practices in OOP/FP.
• Deploy, monitor, and maintain production systems.
• Collaborate with DevOps teams to containerize applications using Docker.
• Work with cloud platforms (preferably AWS or GCP) to deploy and scale applications.
• Participate in code reviews and mentor junior developers.
• Integrate third-party services, including AI APIs and related tools.
• Write clear technical documentation and communicate effectively with stakeholders.

Skills

Full-stack

Backend JavaScript

Frontend React

PostgreSQL/MySQL

Docker

AWS/GCP

OOP/FP

Code reviews

Mentoring

Documentation

Tools

Node.js

React.js

PostgreSQL

MySQL

Docker

AWS

GCP

Job description

We are seeking a highly skilled and experienced Senior Full-Stack Engineer with a minimum of 5 years of professional experience in both frontend and backend development. The ideal candidate is passionate about building scalable, high-performance applications and has strong expertise in JavaScript-based backend systems and modern frontend frameworks. You will play a key role in designing, developing, and maintaining production-grade systems while collaborating closely with cross-functional teams.

Key Responsibilities

• Design, develop, and maintain scalable full-stack applications.
• Build robust backend services and APIs using JavaScript (Node.js preferred).
• Develop responsive, high-performance user interfaces using React.
• Work with relational databases such as PostgreSQL or MySQL to design and optimize schemas and queries.
• Contribute to architecture decisions and system design discussions.
• Ensure code quality by following clean coding practices, SOLID principles, and best practices in OOP/FP.
• Deploy, monitor, and maintain production systems.
• Collaborate with DevOps teams to containerize applications using Docker.
• Work with cloud platforms (preferably AWS or GCP) to deploy and scale applications.
• Participate in code reviews and mentor junior developers.
• Integrate third-party services, including AI APIs and related tools.
• Write clear technical documentation and communicate effectively with stakeholders.

Required Qualifications

• Minimum 5+ years of professional full-stack development experience.
• Strong backend development experience with JavaScript (Node.js).
• Strong frontend development experience with React.
• Experience working with relational databases such as PostgreSQL or MySQL.
• Experience building and maintaining production-grade systems.
• Strong understanding of Object-Oriented Programming (OOP) or Functional Programming (FP).
• Solid knowledge of clean coding practices and SOLID principles.
• Experience with Docker and containerized environments.
• Experience working with cloud services (AWS or GCP preferred).
• Excellent written and verbal communication skills.