Fullstack Developer

Job Title: Full-Stack MERN Developer (5–8 Years Experience)

Location: Borivali, Mumbai (Onsite)

Experience: 6–8 Years

Joining: Immediate Joiners

Employment Type: Full-time

Job Overview

We are looking for an experienced Full-Stack MERN Developer to join our engineering team in Borivali, Mumbai. The ideal candidate should have strong hands-on experience building scalable web applications using React, Node.js, Express, and MongoDB, with a solid understanding of REST APIs, microservices architecture, performance optimization, and cloud infrastructure.

You will work on consumer-facing applications, handle large datasets, and contribute to building reliable, high-performance systems.

Key Responsibilities

• Design, develop, and maintain full-stack web applications using MERN stack
• Build scalable and secure RESTful APIs and backend services using Node.js & Express
• Develop reusable and high-performance React components with proper state management
• Implement microservices-based architecture and inter-service communication
• Optimize application performance at both frontend and backend levels
• Work with MongoDB for data modeling, indexing, and performance tuning
• Handle large datasets efficiently and ensure system reliability
• Implement logging, tracing, and monitoring for production-ready applications
• Collaborate with product, frontend, backend, and DevOps teams
• Write clean, maintainable, and well-documented code

Technical Requirements

Backend

• Strong hands-on experience with Node.js & Express.js
• Expertise in building REST APIs and backend business logic
• Strong understanding of async programming (Callbacks, Promises, Async/Await)
• Experience with microservices architecture
• Hands-on experience with MongoDB (Expert level)
• Working knowledge of PostgreSQL / MySQL
• Experience with Kafka or other message queue systems
• Familiarity with Bull / job schedulers

Frontend

• Strong experience with React.js
• Hands-on experience with state management (Redux, Context API, or similar)
• Good understanding of HTML, CSS, AJAX
• Experience with performance optimization techniques in React

Infrastructure & Cloud

• Experience with Docker and Kubernetes (K8s)
• Hands-on exposure to AWS services such as EC2, S3, ELB, AutoScaling, CloudFront
• Understanding of CI/CD pipelines is a plus

Core Computer Science

• Good understanding of Data Structures & Algorithms
• Solid knowledge of Operating Systems fundamentals

Good to Have

• Experience with Redis for caching
• Exposure to Vue.js
• Experience working on consumer-facing web or app products
• Strong debugging and problem-solving skills
• Familiarity with application monitoring tools (logs, metrics, tracing)

What We’re Looking For

• Strong problem-solving mindset and ownership attitude
• Ability to learn new tools and technologies quickly
• Comfortable working in fast-paced, production-driven environments
• Immediate or short-notice joiners preferred

Key Responsibilities

Reporting & Analytics Development

• Design, develop, and maintain complex reporting solutions serving mission-critical emergency

response operations

• Build interactive dashboards and data visualizations that transform large datasets into

actionable insights

• Develop advanced analytics features including trend analysis, predictive metrics, and

operational intelligence

• Create self-service reporting capabilities enabling stakeholders to access critical data

independently

• Implement real-time and scheduled reporting systems with appropriate caching and

optimization strategies

SQL & Database Architecture

• Write and optimize complex SQL queries involving multiple joins, subqueries, CTEs, window

functions, and aggregations

• Review existing database architectures and identify performance bottlenecks and optimization

opportunities

• Design and implement database schema enhancements to support evolving reporting

requirements

• Develop and maintain stored procedures, functions, and views optimized for reporting

workloads

• Perform comprehensive query performance analysis and implement tuning strategies across

PostgreSQL and AWS Aurora environments

• Create efficient indexing strategies and data access patterns for large-scale datasets

• Establish data modeling best practices for dimensional and transactional reporting needs

Performance Optimization

• Conduct systematic performance analysis of reporting queries processing millions of records

• Implement query optimization techniques including execution plan analysis, index tuning, and

query refactoring

• Design and implement data aggregation strategies, materialized views, and summary tables for

improved performance

• Monitor and optimize database performance metrics including query response times, resource

utilization, and concurrency

• Develop ETL processes and data pipelines optimized for reporting and analytics workloads

• Implement caching strategies and data archival policies to maintain optimal system

performance

Technical Collaboration

• Partner with Product and stakeholder teams to translate business reporting requirements into

technical solutions

• Conduct code reviews focused on SQL quality, performance, and best practices

• Provide technical guidance to development teams on reporting architecture and database

optimization

• Document database schemas, reporting architectures, and optimization strategies

• Collaborate with DevOps on database infrastructure, monitoring, and scaling initiatives

Required Qualifications

Experience & Background

• 8+ years of software engineering experience with significant focus on reporting, analytics, or

business intelligence

• 5+ years of hands-on experience writing complex SQL in production environments

• 3+ years working with large-scale databases (millions+ records) and optimizing query

performance

• Proven track record developing enterprise reporting solutions and analytics platforms

• Experience conducting database architecture reviews and implementing performance

improvements

Technical Expertise - SQL & Databases

• Expert-level SQL proficiency including complex joins, subqueries, CTEs, window functions, and

advanced aggregations

• Deep PostgreSQL expertise with production experience in query optimization and performance

tuning

• Strong understanding of database internals including execution plans, indexing strategies, and

query optimization

• Experience with AWS Aurora or other cloud-based PostgreSQL solutions

• Proficiency in stored procedures, triggers, functions, and database programming

• Advanced knowledge of database design principles, normalization, and dimensional modeling

• Experience with database performance monitoring and profiling tools

• Strong programming skills in PHP (Yii framework or similar MVC frameworks preferred)

• Solid experience with Vue.js or similar modern JavaScript frameworks for building reporting

interfaces

What You'll Work With

• Databases: PostgreSQL, AWS Aurora, multi-tenant architectures

• Backend: PHP (Yii framework), RESTful APIs

• Frontend: Vue.js (Vue 2/3), modern JavaScript, data visualization libraries

• Infrastructure: AWS (RDS, Aurora, S3, Lambda), Postgres

• Tools: Git/GitHub, JIRA, Agile development workflows

Work Location

Hyderabad, India - On-site position with flexible working arrangements to accommodate both India

and onsite teams

Storytelling platforms have not evolved with smartphones, as we still consume stories being passive observers. At Raidenbit, we are building http://onelink.to/kahaniboxapp">KahaniBox - The Netflix for interactive fiction in Indian languages. We create stories with immersive roleplay experiences that allow the audience to control how the stories unfold and end. And while doing that, we are solving some fascinating problems around decoding human psychology and understanding our audience’s content tastes using engineering and data science.

We are looking for experienced Full Stack Developers - the ones who would help us in making KahaniBox the largest interactive fiction platform globally. You would be maintaining/fixing/improving our existing and new front-end and back-end solutions while working 100% remotely in flexible timings.

Required at least 2+ years of experience in -

• HTML/CSS
• JavaScript (ES6)
• Vue.js (or an equivalent frontend framework, e.g. React/Angular)
• Node.js
• Google Cloud Platform (or any other e.g. AWS/Azure, etc).

Ideal candidate will also be experienced in

• BAAS (Firebase or equivalent) and good understanding of serverless architectures.
• RESTFul API Consumption and Development.
• Testing (unit and integration).
• Comfortable with CI, continuous deployment, Git, and project management tools.
• Experience setting up and data mining Analytics databases.

Bonus points if you have experience with TypeScript.

Job Responsibilities:

The role is responsible for designing, coding, and modifying web apps, from layout to function and according to the specifications. Integrating data from various back-end services and databases.

Job Duties

• Candidate must have a strong understanding of UI, cross-browser compatibility, general web functions, and standards.

• The position requires constant communication with colleagues.
• Experience in working with distributed environments

• Deep expertise and hands-on experience with Web Applications and programming languages such as HTML, CSS, JavaScript, JQuery, and API.

Skills:

Proven working experience (2 years) in:

• Node.js

• Angular

• React

What are we?

Llama is a purpose driven startup.

We help people build the inner skills that are critical to have for wellbeing and high performance today!

A unique mindfulness-based behaviour change platform for mental health through workplace wellbeing.

We are building a hybrid learning platform to cater to a broad spectrum of well-being needs by introducing contemplative wisdom practices into the workplace.

All Llamas have some terrific abilities! You will have…

• 1 - 2+ years of experience in full stack development.
• Strong understanding of HTML, CSS, JavaScript.
• Comfortable in working with WordPress, React/Vue, Python, and PHP.
• Worked with multiple of the UI libraries.
• Understanding of version control systems.
• Comfortable in switching different technologies both in front end and back end.
• Good understanding with different types of databases.
• Knows the best practices of the technology, worked on.
• Experienced in using Figma, canva or similar designing tools

All Llamas also have some terrific response-abilities!

For starters you will…

• Develop the current wordpress website.
• Develop the current product ecosystem.
• Co develop AI tools and different integrations for multiple platforms.
• Explore possible technologies to integrate in Llama’s Tech ecosystem.
• Contributes to the open source projects that we use in any form.
• Document the project as you build.
• Utilize Project management tools
• Create training resources for future team members

Responsibility :