MERN Developer at Conquestico Digital Private Limited · Bengaluru (Bangalore) · 0 - 1 years · ₹2L - ₹3L / yr · Bootstrapped · Posted 16 Oct 2025

We are looking for a highly skilled MERN Stack Developer who is passionate about building seamless user interfaces and robust backend systems. The ideal candidate will have strong expertise in ReactJS for UI development and hands-on experience in Node.js API development. You will play a crucial role in developing and maintaining scalable web applications using the MERN (MongoDB, Express.js, React.js, Node.js) stack.
Responsibilities:
- Frontend Development:
- Build responsive and dynamic user interfaces using ReactJS.
- Develop reusable components, UI libraries, and ensure excellent user experience.
- Optimize applications for maximum speed and scalability.
- Work with tools like Redux, React Hooks, and other state management libraries.
- Backend Development:
- Design and develop RESTful APIs using Node.js and Express.js.
- Build secure, scalable, and efficient server-side applications.
- Integrate third-party APIs and services when required.
- Database Management:
- Work with MongoDB to design and manage collections, queries, and indexes.
- Ensure smooth integration of database operations with the backend.
- Collaboration:
- Work closely with designers, project managers, and other developers to define project requirements and deliverables.
- Conduct code reviews and ensure clean, maintainable, and testable code.
- Testing and Deployment:
- Write unit tests and integration tests for both frontend and backend components.
- Deploy applications to cloud environments (AWS, GCP, or similar platforms).
Skills and Qualifications:
- Strong proficiency in ReactJS:
- Experience in creating dynamic and responsive UI components.
- Knowledge of modern React features such as Hooks, Context API, and functional components.
- Hands-on Node.js API Development:
- Strong experience in Express.js to build RESTful APIs.
- Understanding of asynchronous programming and event-driven architecture.
- Good knowledge of MongoDB:
- Hands-on experience with designing collections, writing queries, and data modeling.
- Proficient in JavaScript and ES6+:
- Strong understanding of modern JavaScript, including DOM manipulation.
- Familiarity with:
- State Management Libraries (e.g., Redux, MobX).
- Version Control (Git and GitHub).
- Frontend Tools like Webpack, Babel, and NPM/Yarn.
- API Integrations and tools like Postman or Swagger for testing APIs.
- Strong understanding of UI/UX design principles:
- Ability to work with design tools (e.g., Figma, Sketch, or Adobe XD) to bring designs to life.
- Problem-solving mindset and ability to write clean, efficient, and maintainable code.
Nice-to-Have Skills:
- Experience with TypeScript.
- Knowledge of GraphQL.
- Experience with containerization tools like Docker.
- Familiarity with deployment tools (CI/CD pipelines).
Experience:
- 0-2 years of experience as a MERN Stack Developer or relevant roles.
Benefits:
- Competitive salary based on experience.
- Opportunity to work on exciting and impactful projects.
- Collaborative and dynamic work environment.
- Career growth and learning opportunities.

About Conquestico Digital Private Limited
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What we need:
• Experience in both Web + Mobile development
• Strong understanding of APIs & system design
• Ability to build end-to-end features
· Maintain version control and documentation using Git / GitHub.
Roles and Responsibilities
- Design and develop responsive web applications using React.js / Next.js.
- Build and maintain scalable RESTful APIs using Node.js and Express.js.
- Implement user authentication and authorization using JWT / OAuth2.
- Manage and optimize database structures using MongoDB or MySQL.
- Integrate front-end and back-end components seamlessly for smooth user experience.
- Collaborate with UI/UX designers and product teams to deliver high-quality features.
- Participate in Agile / Scrum sprints, daily stand-ups, and code reviews.
- Optimize applications for speed, performance, and security.
- Maintain version control and documentation using Git / GitHub.
Troubleshoot and debug production issues efficiently.
Job Location- Bangalore,
Candidates from Tamil Nadu willing to relocate to Bangalore can also apply.
Responsibilities:
* Collaborate with cross-functional teams on project requirements and deliverables
* Develop user interfaces using React.JS and Express API's
* Implement database solutions with MongoDB and Node.JS
Role Overview
We are looking for a MERN / MEAN Full Stack Developer to develop and maintain modern web applications.
The candidate should be comfortable working on both frontend and backend components and collaborating closely with cross-functional teams.
Key Responsibilities
Design, develop, and maintain full-stack web applications using MERN or MEAN stack
Build responsive and user-friendly frontend interfaces
Develop secure, scalable backend APIs and services
Work with databases to design efficient schemas and queries
Integrate third-party services and internal systems
Write clean, reusable, and well-tested code
Participate in code reviews and team discussions
Debug and resolve application issues across the stack
Required Skills & Experience
2+ years of hands-on experience in MERN or MEAN stack development
Strong experience with JavaScript / TypeScript
Proficiency in React.js or Angular
Experience with Node.js and Express.js
Hands-on experience with MongoDB (and/or other databases)
Strong understanding of REST APIs
Experience using Git for version control Good to Have (Preferred Skills)
Exposure to Next.js or modern frontend frameworks
Knowledge of authentication, authorization, and security best practices
Experience with cloud platforms (Azure / AWS)
Familiarity with CI/CD pipelines
Exposure in Rust Framework and development using Tauri.app.
Position: Full Stack Developer (React.js + Node.js)
Experience: 2–5 Years
Location: Mumbai – Chembur West (Onsite)
Job Summary
We are looking for a Full Stack Developer with strong hands-on experience in React.js and Node.js to build scalable, secure, and high-performance web applications. The ideal candidate should be comfortable owning features end-to-end, developing responsive UI, building REST APIs, integrating databases, and supporting production systems.
Key Responsibilities
- Build responsive UI using React.js, HTML5, CSS3, JavaScript (ES6+)
- Develop scalable backend services and RESTful APIs using Node.js (Express.js / NestJS)
- Work with MongoDB and MySQL (schema design, indexing, query optimization)
- Implement authentication & authorization using JWT , RBAC , Oauth
- Integrate third-party APIs, Webhooks
- Build real-time features using Socket.io / WebSockets
- Ensure performance, scalability, and security (validation, sanitization)
- Implement caching using Redis (if applicable) and optimize API response times
- Support API testing (Postman/Supertest)
- Maintain API documentation using Swagger / OpenAPI
- Debug and resolve defects, handle RCA, and support production troubleshooting with logs/monitoring
- Follow Git-based workflows, participate in code reviews, and collaborate with QA/product teams in Agile delivery
Mandatory Skills
- React.js, Node.js, JavaScript (ES6+)
- MongoDB (must), MySQL
- REST API development & integration
- Socket.io / WebSockets, Webhooks
- HTML5, CSS3
- Git
- Typescript, Express.js / NestJS
- jQuery / AJAX (basic / legacy support)
Good to Have
- Redis, Swagger/OpenAPI
- Docker, CI/CD (GitHub Actions/Jenkins)
- Cloud exposure (AWS/Azure/GCP)
Qualification
BE / BTech / MCA / MSc IT / BSc IT with 2–5 years relevant experience.
CTC: As per industry std.
About the Role
Octalbees is looking for a MERN Stack Developer Intern to join our development team and work on practical, industry-oriented web development projects.
What You'll Work On
- Build and improve web applications using MongoDB, Express.js, React.js, and Node.js
- Develop responsive and user-friendly frontend interfaces
- Build and integrate REST APIs
- Work with databases, authentication, and backend services
- Debug, test, and optimize applications
- Collaborate with the team and follow professional development workflows
- Contribute to real-world projects and features
What We're Looking For
- Basic to good understanding of the MERN stack
- Knowledge of JavaScript, React.js, Node.js, Express.js and MongoDB
- Understanding of REST APIs and Git/GitHub
- Good problem-solving and communication skills
- Willingness to learn, take feedback, and work on practical projects
What You'll Get
- Hands-on experience with industry-oriented projects
- Mentorship and guidance
- Exposure to professional development workflows
- Internship certificate and project experience
- Performance-based stipend from the second month for eligible interns
- PPO opportunity for candidates who demonstrate strong performance and contribution
Internship Details
- Mode: Remote
- Type: Internship
- Commitment: Part-time / flexible
- Candidates who perform well may have opportunities for continued engagement with Octalbees.
Important: Stipend and PPO are performance-based and are not guaranteed for every intern.
To Apply: Submit your application through Wellfound with your updated resume/GitHub/portfolio.
About Us
Corporate Web Solutions delivers web development and digital transformation solutions with a focus on scalable technologies and practical innovation. Our internship environment provides students with opportunities to work on real-world development projects.
Role Overview
As a MERN Stack Developer Intern, you'll gain hands-on experience developing web applications using MongoDB, Express.js, React, and Node.js, along with AI-assisted development tools.
Key Responsibilities
- Assist in developing MERN stack applications.
- Build responsive React interfaces.
- Develop and integrate REST APIs.
- Work with MongoDB and backend services.
- Debug and test application features.
- Explore AI tools for software development.
Requirements
- Basic JavaScript knowledge.
- Familiarity with React or Node.js.
- Basic understanding of databases.
- Knowledge of MongoDB is a plus.
- Strong willingness to learn.
Perks
- Certificate of Internship
- Flexible work hours
- Mentorship and real project exposure
- Potential for PPO
- Letter of Recommendation
- Performance-Based Stipend available up to ₹18,000/month
Aarohan Agri Products Pvt. Ltd.
We are looking for a passionate Entry-Level Full Stack Developer (MERN Stack) to join our team. Freshers and candidates with up to 1 year of experience are welcome to apply.
About Vijay Sales
Vijay Sales is a consumer electronics and appliances retailer, selling through its stores across India, its website and its app.
Our technology team builds the software the business runs on: order management, customer support automation over WhatsApp, reviews and ratings, and the dashboards our operations teams use every day.
The role
We are hiring full stack engineers who can take a feature from spec to production across React, Node.js and MongoDB.
You will work on customer-facing and internal products, often both in the same week. One sprint may be a review submission page used by customers on their phones. The next may be an API that pulls order status from our order management system for the support bot.
We are looking for engineers with 3 to 6 years of experience who are comfortable owning both the front end and the back end of what they ship.
What you'll do
- Build responsive, mobile-first interfaces in React using our in-house UI component libraries.
- Design and build REST APIs and background services in Node.js.
- Model data in MongoDB and keep queries fast as collections grow.
- Integrate with the systems the business runs on: order management, ERP, point of sale and ticketing.
- Build messaging flows over WhatsApp, email and SMS, including delivery tracking, retries and fallbacks.
- Work with the conversational AI team to expose order, invoice and support actions to the customer support bot.
- Write tests, review code and own your features in production, including monitoring and fixing what breaks.
- Work directly with product and operations teams to turn a business problem into a working release.
Our stack
React, Node.js and MongoDB are the core. Everything else in the table is what you will connect to or build alongside.
- Front end: React, with Vijay Sales' in-house UI component libraries
- Back end: Node.js services and REST APIs
- Database: MongoDB
- Messaging: WhatsApp Business, Amazon SES for email, RCS and SMS as fallback
- Conversational AI: LangChain and Rasa, behind the customer support bot
- Business systems: Order management (OMS), ERP, POS, Ticketing Systems
What we're looking for
- 3 to 6 years of professional experience building and shipping web applications.
- Strong JavaScript and TypeScript fundamentals: async patterns, the event loop, modules, error handling.
- Solid React skills: hooks, state management, component design, performance on low-end mobile devices.
- Hands-on Node.js experience: building REST APIs, authentication with JWT, role-based access, input validation.
- Working knowledge of MongoDB: schema design, indexing, aggregation pipelines.
- Experience integrating third-party APIs and webhooks, and handling their failures gracefully.
- Comfort with Git, code review, automated tests and CI/CD.
- Clear written and spoken communication. You will talk to operations and business teams, not only engineers.
Nice to have
- Experience with the WhatsApp Business API, Gupshup or similar messaging platforms.
- Exposure to LLM application development: LangChain, retrieval, tool calling, or bot frameworks such as Rasa.
- Background in retail, e-commerce or order management systems.
- Experience integrating with ERP or POS systems.
- Familiarity with AWS, Redis and message queues.
- React Native or other mobile app experience.
Why join and how to apply
- Your work reaches real customers and store teams quickly. There is very little distance between a release and the people who use it.
- You own features end to end, from the first conversation with the business team to production.
- You get hands-on exposure to conversational AI and LLM-based products alongside core full stack work.
AI Agent Frameworks, LangChain, LlamaIndex, OpenAI API,Zapier, HTML5, CSS3, JavaScript,bootstrap3.1,TypeScript, React.js, Next.js, Vue.js, Node.js, Python, PHP, WordPress, Headless CMS, DNS Management, SSL Configuration, Conversion Rate Optimization (CRO), A/B Testing, AWS, Google Cloud Platform (GCP), Cloudflare CDN, AWS S3, Core Web Vitals, Google Trends, Google Search Console, Ahrefs, SEMrush, Google Analytics 4 (GA4), Google Tag Manager (GTM), Meta WhatsApp Cloud API, Twilio, Webhooks, MSG91, REST APIs,claude,github,MYSQL

* Design, develop, and maintain responsive websites and web applications.
* Build reusable frontend components using React.js.
* Develop scalable backend APIs and services using Node.js.
* Integrate third-party services and payment gateways such as Stripe.
* Build RESTful APIs and integrate with modern databases.
* Optimize applications for maximum speed, scalability, and SEO.
* Collaborate with designers to translate Figma/UI designs into pixel-perfect interfaces.
* Implement authentication, authorization, and security best practices.
* Debug production issues and improve application performance.
* Participate in code reviews and mentor junior developers.
* Work within Agile/Scrum development processes.





