Senior Fullstack Developer (Fintech)

RoboticsExpertsIndia; Mumbai; On-site; INR 1,800,000 - 2,600,000; Full time

Job summary

RoboticsExpertsIndia is seeking a Senior Full-Stack Engineer with 5+ years of experience to design, develop, and maintain scalable systems. You will build Node.js backends, React frontends, and work with PostgreSQL/MySQL databases.

You will deploy to cloud platforms (AWS or GCP), containerize with Docker, and mentor junior developers while collaborating with cross-functional teams.

Qualifications

• 5+ years of professional full-stack development experience.
• Strong backend development with Node.js.
• Strong frontend development with React.
• Experience with PostgreSQL or MySQL.
• Production-grade systems experience.
• Solid understanding of OOP or FP and SOLID principles.
• Docker experience and containerized environments.
• Cloud services experience (AWS or GCP).
• Excellent written and verbal communication skills.

Responsibilities

• Design, develop, and maintain scalable full-stack applications.
• Build robust backend services and APIs using Node.js.
• Develop responsive UIs with React.
• Design and optimize relational database schemas.
• Contribute to architecture decisions and system design.
• Uphold clean coding practices and SOLID principles.
• Deploy, monitor, and maintain production systems.
• Collaborate with DevOps to containerize applications with Docker.
• Work on cloud deployment on AWS or GCP.
• Participate in code reviews and mentor junior developers.
• Integrate AI APIs and related tools and write technical docs.

Skills

Node.js

React

PostgreSQL

MySQL

Docker

AWS

GCP

OOP/FP

Tools

Node.js

React

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.