Senior MERN Stack Developer
Location: Mumbai (Hybrid)
Experience: 3-5 years
Hiring Urgency: Immediate
Job Title: MERN Stack Developer (3+ Years Experience)
Role Overview
We are looking for a hands-on MERN Stack Developer with around 3 years of experience to build scalable, secure, and high-performance web applications. You will work closely with product, AI, and data teams to develop real-time features, APIs, and data-driven workflows critical to financial due diligence. This role demands strong backend fundamentals, experience with WebSockets, and a solid understanding of both NoSQL and relational databases.
Key Responsibilities
Backend & API Development
Design and develop secure, scalable, and high-performance REST APIs
Implement authentication, authorization, and role-based access control (RBAC)
Build real-time features using WebSockets (live updates, notifications, collaboration)
Ensure APIs meet performance, reliability, and security best practices
Frontend Development
Develop responsive and intuitive user interfaces using React.js
Collaborate with UX/product teams to translate requirements into clean UI components
Optimize frontend performance for large datasets and real-time interactions
Database & Data Handling
Design and manage data models using:
NoSQL databases (MongoDB)
Relational databases (PostgreSQL / MySQL)
Write optimized queries and ensure data consistency, indexing, and scalability
Handle transactional and analytical data use cases effectively
System Design & Collaboration
Participate in system design discussions and technical decision-making
Write clean, modular, and testable code
Collaborate with cross-functional teams including AI, product, and DevOps
Debug production issues and improve system reliability
Required Skills & Experience
Core Technical Skills
3 years of experience in MERN Stack development
Strong proficiency in:
Node.js & Express.js
React.js
JavaScript / TypeScript
Hands-on experience with WebSockets (Socket.io or similar)
Experience building secure APIs (JWT, OAuth, encryption, rate limiting)
Strong understanding of:
MongoDB (schema design, indexing)
Relational DBs (PostgreSQL/MySQL, joins, transactions)
Familiarity with Git-based workflows and code reviews
Engineering Fundamentals
Good understanding of:
API performance optimization
Asynchronous programming
Error handling and logging
Security best practices (OWASP basics)
Good to Have (Nice-to-Have Skills)
Experience with AWS cloud services, especially:
EC2
ECS
EKS
Exposure to Docker & containerized deployments
Experience with CI/CD pipelines
Knowledge of system scalability, caching (Redis), and message queues
Prior experience in FinTech / SaaS / Data-heavy platforms
What We Look For
Product-first mindset with attention to performance and security
Ability to work in fast-moving startup environments
Strong problem-solving and debugging skills
Ownership mentality — you build it, you improve it, you scale it
What You'll Get
Opportunity to build a core AI-driven FinTech product
Real ownership over architecture and critical features
Exposure to scalable systems and real-time applications
Collaborative culture with high engineering standards
or continue with email
Location: Mumbai (Hybrid)
Experience: 3-5 years
Hiring Urgency: Immediate
Job Title: MERN Stack Developer (3+ Years Experience)
Role Overview
We are looking for a hands-on MERN Stack Developer with around 3 years of experience to build scalable, secure, and high-performance web applications. You will work closely with product, AI, and data teams to develop real-time features, APIs, and data-driven workflows critical to financial due diligence. This role demands strong backend fundamentals, experience with WebSockets, and a solid understanding of both NoSQL and relational databases.
Key Responsibilities
Backend & API Development
Design and develop secure, scalable, and high-performance REST APIs
Implement authentication, authorization, and role-based access control (RBAC)
Build real-time features using WebSockets (live updates, notifications, collaboration)
Ensure APIs meet performance, reliability, and security best practices
Frontend Development
Develop responsive and intuitive user interfaces using React.js
Collaborate with UX/product teams to translate requirements into clean UI components
Optimize frontend performance for large datasets and real-time interactions
Database & Data Handling
Design and manage data models using:
NoSQL databases (MongoDB)
Relational databases (PostgreSQL / MySQL)
Write optimized queries and ensure data consistency, indexing, and scalability
Handle transactional and analytical data use cases effectively
System Design & Collaboration
Participate in system design discussions and technical decision-making
Write clean, modular, and testable code
Collaborate with cross-functional teams including AI, product, and DevOps
Debug production issues and improve system reliability
Required Skills & Experience
Core Technical Skills
3 years of experience in MERN Stack development
Strong proficiency in:
Node.js & Express.js
React.js
JavaScript / TypeScript
Hands-on experience with WebSockets (Socket.io or similar)
Experience building secure APIs (JWT, OAuth, encryption, rate limiting)
Strong understanding of:
MongoDB (schema design, indexing)
Relational DBs (PostgreSQL/MySQL, joins, transactions)
Familiarity with Git-based workflows and code reviews
Engineering Fundamentals
Good understanding of:
API performance optimization
Asynchronous programming
Error handling and logging
Security best practices (OWASP basics)
Good to Have (Nice-to-Have Skills)
Experience with AWS cloud services, especially:
EC2
ECS
EKS
Exposure to Docker & containerized deployments
Experience with CI/CD pipelines
Knowledge of system scalability, caching (Redis), and message queues
Prior experience in FinTech / SaaS / Data-heavy platforms
What We Look For
Product-first mindset with attention to performance and security
Ability to work in fast-moving startup environments
Strong problem-solving and debugging skills
Ownership mentality — you build it, you improve it, you scale it
What You'll Get
Opportunity to build a core AI-driven FinTech product
Real ownership over architecture and critical features
Exposure to scalable systems and real-time applications
Collaborative culture with high engineering standards
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