MERN Stack Developer

Job Title : Product Engineer – Fullstack Developer

Experience Required : 4 to 6 Years

Location : Indiranagar, Bengaluru (Hybrid – 2 to 3 days/week in office)

Open to Remote : Yes (based on fit and preference)

Job Summary :

We are looking for a Fullstack JavaScript Engineer with a backend-heavy profile to join our innovative product team.

You’ll be involved across the full product lifecycle — from design and development to deployment and operations — for modern travel systems.

Ideal candidates should be strong in JavaScript, Node.js, and React.js, with a solid understanding of TDD, OOP, and CI/CD practices.

Mandatory Skills :

JavaScript, Node.js, React.js, REST/GraphQL APIs, OOP, TDD, CI/CD, Unit Testing, HTML/CSS, and experience in fullstack/backend-heavy development.

Key Responsibilities :

• Build robust features for our next-gen Trip Planning Systems.
• Work across the full stack: backend (Node.js, Kotlin), frontend (Vue.js/React.js), and APIs (REST/GraphQL).
• Participate in the entire SDLC – from planning and architecture to deployment and monitoring.
• Follow modern software engineering best practices like TDD, code reviews, continuous integration.
• Collaborate closely with cross-functional teams and contribute to technical design discussions.

Must-Have Skills :

• 4 to 6 Years of professional experience in fullstack development.
• Strong proficiency in JavaScript & Node.js.
• Hands-on experience with React.js (preferred over Angular).
• Proficiency in building REST or GraphQL APIs.
• Strong understanding of OOP and Test-Driven Development (TDD).
• Familiarity with CI/CD tools (e.g., Jenkins, GitHub Actions).
• Comfort working with multiple languages or stacks (e.g., Kotlin, Vue.js).
• Experience with unit testing and automation frameworks.

Nice-to-Have :

• Exposure to cloud infrastructure (e.g., AWS, Docker, Kubernetes, Terraform).
• Experience in both product and service-based companies.
• Contributions to code quality and code reviews.

We are seeking a highly skilled Team Lead – MERN Stack Developer to lead the development and delivery of scalable, maintainable, and high-performance applications using MongoDB, Express.js, React.js, and Node.js. The ideal candidate will have strong technical expertise, leadership skills, and a passion for building innovative solutions. If you have experience in microservices, micro-frontends, message queues, Redis, CI/CD, and best practices for large-scale applications, we’d love to have you on our team.

Key Responsibilities

Technical Leadership & Team Management

• Lead and mentor a team of developers, ensuring smooth collaboration, technical growth, and high-quality deliverables.
• Assign tasks, set priorities, track progress, and ensure project deadlines are met.
• Conduct code reviews to maintain coding standards, ensure maintainability, and improve code quality.
• Promote a culture of innovation, continuous learning, and problem-solving.
• Architect and implement microservices, micro-frontends, and modular micro-apps for scalable and maintainable solutions.
• Collaborate with stakeholders to translate business requirements into technical designs and implementation plans.
• Optimize performance and scalability for large-scale applications with dynamic data flows.

Backend Development (Node.js & Express.js)

• Design and implement secure, scalable backend structures and APIs.
• Develop reusable tools and libraries to support a microservices architecture.
• Handle error management and debugging for seamless application functionality.
• Work with message queues like RabbitMQ, Kafka, or Redis for event-driven communication.
• Use tools like New Relic or Prometheus to monitor and debug production systems.
• Solve challenging technical problems with smart, scalable solutions.

Database Management (MongoDB)

• Design efficient and scalable database schemas for large-scale projects.
• Optimize database performance using indexing, aggregation, and advanced querying techniques.
• Leverage MongoDB features like sharding and replication to handle large datasets efficiently.

Frontend Development (React.js & JavaScript)

• Build and optimize reusable, high-performance React.js components and dynamic user interfaces.
• Develop robust solutions for complex UI interactions, including drag-and-drop functionality.
• Implement efficient state management using Redux, Context API, or React Query.
• Optimize web performance, including DOM manipulation, memory management, and responsiveness.
• Ensure applications adhere to WCAG accessibility standards and provide excellent user experiences.

Best Practices & Continuous Improvement

• Define and enforce coding standards, workflows, and best practices for high-quality development.
• Develop and maintain CI/CD pipelines for automated testing and deployment.
• Write secure and robust code to protect against vulnerabilities like XSS and CSRF.
• Regularly monitor and optimize application performance, security, and scalability.
• Stay updated on the latest trends in MERN stack technologies and software development practices.
• Collaborate with DevOps teams for containerized deployments using Docker and Kubernetes.

Front End developers

• Angular.JS experience
• MongoDB query and aggregation experience (not a database administrator)
• GraphQL experience
• Node.JS and Typescript experience
• CSS and SCSS experience
• CI/CD experience with GitHub actions

Backend Developers:

• Software development experience, one of Python (preferred) or Node.JS/Typescript)
• Experience with Messaging architectures - RabbitMQ (preference) or Kafka
• Experience with docker-containers 
• Experience with Apache NiFi (valued but not necessary)
• Experience with designing or implementing horizontally scalable solutions
• Experience working with RESTful APIs
• CI/CD experience with GitHub actions
• Experience with Azure cloud

• demonstrates a growth mindset, seeks feedback often and is effective in continuous personal and professional development
• provides expertise in all phases of the development lifecycle from concept and design to testing
• defines the architecture, best practices and coding standards for the product development team
• supports continuous technical improvement by investigating alternatives and technologies and presenting these for architectural review
• motivates team members and extends goodwill to other employees while having fun!

• 2+ years of software industry experience
• Strong Expertise in JS, PHP, React, Node, Angular2+, MySQL, PostgreSQL
• Solid understanding of software design, development, testing, and problem-solving
• Expertise in coding efficient, high quality and modularized software
• Experience in developing Web services - Rest/Soap APIs/HTTP API - Microservices
• Experience setting up and managing servers. Devops experience is a big plus
• Strong exposure on Database like RDBMS - Postgres DB / NoSQL DB like DynamoDB, Elasticsearch
• Experience in Cloud / Storage like Amazon (AWS) - EC2/EBS/S3
• Expertise in test automation
• Familiarity with Unix shell and source control systems and tools such as git
• Strong technical leadership skills
• Comfortable collaborating with designers, front-end developers and other team members
• Strong communication skills
• Technical Coaching and mentoring skills
• Understanding of machine learning, natural language processing is a plus

Job Description: -

Comm-IT is seeking an enthusiastic Web Developer to help our fast-growing development team in India. You will play an important role and be a part of creating a product used by millions of people.

Responsibilities: -

• Design and build advanced web applications / products for desktop browsers, mobile web & feature phone.
• You work in agile cross-functional team to create great customer experiences and implement high quality code into production.
• Work on bug fixing and improving application performance.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• You prioritize performance in all your development - both network and rendering

Requirements: -

• Minimum of 6 months - 1 year of experience in software development.
• This project requires full stack experience creating applications and products using .Net and C# development, HTML 5, jQuery library and CSS3.
• Strong Web backend knowledge in Asp.Net Web API, Razer pages, .Net Entity Framework and MS SQL scripting.
• Experience developing REST-based APIs.
• Knowledge in TypeScript / JavaScript front-end back-end development experience
• Knowledge in CSS & layout skills – modern Bootstrap, CSS layout techniques
• Good understanding of object-oriented programming and its implementation
• Interest working in Cloud-based technologies.
• Confidence to work as part of a Scrum Team.
• Desire to learn new

Nice to have (Add-On): -

• Knowledge of multiple back-end languages (e.g., C#, Java, Python) and JavaScript frameworks (e.g., Angular, React, Node.js, Blazor Framework)
• Familiarity with databases (e.g., MySQL, MongoDB), web servers (e.g., Apache) and UI/UX design
• Experience creating automated unit tests and functional test.

• 5+ years of experience participating in the delivery of technology services.
• A proven ability to learn new applications & innovate in technology
• Strong Experience in technologies like Node, Webservices and Microservices
• Experience with cloud components and services and containerization technologies is desirable
• Exposure to ReactJS mandatory
• Experience working with multiple types of datastores: Mongo DB, SQL
• Experience in integrating, designing and developing solutions is desirable
• Experience with CI/CD and TDD is desirable
• Frameworks - Express , Hapi , feathers
• Strong knowledge in Javascript

Ideal skills:

1) 2-5 years of professional JavaScript development experience

2) Understanding of asynchronous programming and its quirks and workarounds

3) Comfortable working through the entire stack from the user interface through systems levels

4) Understanding accessibility and security compliance

5) Strong Logical and Analytical Skills

6) Experience in consuming web services (REST) and processing data (JSON)

7) Experience with SQLite, NoSQL, Redis or other databases

8) Proven experience in building API services using NodeJS Express and related frameworks

9) Good understanding of NodeJS asynchronous runtime

10) Good understanding of JS concepts on callbacks and closures

11) Experience in debugging issues related to memory leaks

12) Experience in building highly scalable and high throughput services with sub-second response times

13) Experience with ElasticSearch/Solr

14) Experience working in a collaborative team environment

15) Ability to understand and analyse issues across multiple vendors and interfaces

16) Experience with NoSQL queries

17) Experience with AWS

18) Experience with Android Development

19) Experience in managing/mentoring small teams

In depth knowledge of all of the above is not mandatory but the nature of the work will involve learning and getting involved with all of the above. You would be working directly with key members of the management team to define and drive technical strategy.

Experience in the mobile space is mandatory. Please only apply if you have been part of building a mobile product. Since our product is mobile only, it is essential that you understand implications on the front end.