
MERN Stack Developer
Location: Surat, Gujarat (No WFH )
Job Summary:
We are looking for a Full Stack Developer (MERN) with hands-on experience in building highly scalable, performance-driven applications. The ideal candidate should have a deep understanding of both front-end and back-end development, microservices, and database optimization for large-scale systems. You will be responsible for designing, developing, and maintaining applications that can handle high concurrency (1,000+ active users) while ensuring performance, reliability, and scalability.
This role involves working closely with cross-functional teams — including product managers, designers, and DevOps engineers — to deliver cutting-edge, enterprise-grade solutions.
Roles & Responsibilities:
- Design and develop scalable and distributed web applications using the MERN stack (MongoDB, Express.js, React/Next.js, Node.js).
- Build and optimize RESTful APIs for high-performance, concurrent environments.
- Architect and manage MongoDB databases, ensuring high availability, efficient query performance, and scalability.
- Implement queueing systems (e.g., BullMQ, RabbitMQ, Kafka, or Redis Queues) for background jobs and asynchronous processing.
- Optimize server and client performance to support real-time data updates and high concurrent user loads.
- Collaborate with DevOps to improve deployment pipelines, containerization (Docker), and cloud scalability.
- Conduct thorough testing, profiling, and debugging to identify performance bottlenecks and optimize both code and infrastructure.
- Participate in code reviews, architecture discussions, and sprint planning to ensure technical excellence and scalability across all layers.
Qualification / Requirements:
- Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
- 1 + years of hands-on experience in full-stack development using the MERN stack.
- Proven experience working on applications supporting 1,000+ concurrent users or large-scale distributed systems.
- Strong expertise in:
- Node.js (asynchronous programming, clustering, performance optimization)
- Next.js & React.js (SSR, CSR, and dynamic rendering)
- MongoDB (aggregation pipelines, indexing, schema design for scalability)
- Practical experience with message queues (BullMQ, RabbitMQ, Kafka, or Redis Streams).
- Familiarity with caching mechanisms (Redis, Memcached) to optimize performance.
- Experience with Docker and microservices-based architectures is a plus.
- Good understanding of API design, authentication mechanisms (JWT, OAuth), and security best practices.
- Experience working in Agile environments and using Git-based version control.
Nice to Have:
- Exposure to serverless computing (AWS Lambda).
- Experience with monitoring tools (New Relic, Datadog, ELK Stack).
- Knowledge of CI/CD pipelines and automated deployment workflows.
- Experience in real-time communication (WebSockets, Socket.io).

About Knovator Technologies
About
Knovator create IT solutions that our clients love. From handling simple to complex business challenges, we provide custom and
in-depth technical advice and solutions.
We help businesses and startups to achieve growth, efficiency and cost reduction with custom-made technology solutions. We develop
custom web and mobile solutions using a technologies on which Facebook and Google relies on. One of our speciality is best post-
sales support. Get in touch with us if you are looking for any web or mobile solution with best post-sales support.
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Full Stack MERN/ MEAN Tech Lead
Location
Bangalore
About the company
With over a decade of experience, we specialize in crafting bespoke integration solutions and empowering businesses across the globe with a combined approach to emerging technology. We use cutting edge enterprise platforms - Microsoft, Salesforce, SAP and more Since our establishment in 2004, with our headquarters located in Tampa, USA, eCosmos has been extending global reach and domestic support to a diverse range of organizations, from start-ups to Fortune 500 companies
. Job Summary:
The Lead Developer provides technical expertise which requires a working knowledge of the technical infrastructure underpinning the applications. Plans, consults, and coordinates complex project assignments in the design, development and implementation of applications software. Works as part of a service or project team to implement complex technical solutions that meet business requirements. Responsible for contributing to the planning of the work programs and the review, development, and modification of best practices and technical solutions. Provides supervision to a team of Developers
. What success looks like in this role:
• You will lead a team of 5-10 developers building web apps with React, Node.js, Express and MongoDB, and mobile apps with React Native.
• Architect scalable and high-performance web and mobile apps using proven JavaScript stacks like MERN and MEAN
• Establish best practices for web and mobile development, code quality, testing, and CI/CD
• Proficiency in TypeScript is required to develop and maintain the front-end and back-end of our web applications.
• Plan sprints, assign tasks, and oversee code reviews, testing, and releases
• Troubleshoot and debug applications across the stack
• Manage technical debt and spearhead migrations to new libraries/frameworks when needed
• Hire and mentor developers and promote an engineering culture of learning and excellence.
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• Excellent communication skills, both written and oral.
• Quick problem-solving skills with exceptional aptitude and reasoning. • Good orator, presenter with influencing skills to manage and negotiate complex conflicting resolutions.
• Ability to frame ideas in words to provide a perspective and outcome from analyzing them.
• Experience in leading, managing, mentoring a team of junior developers.
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: • Bachelor's in engineering (B.E or BTech.), MCA.
• 5+ years' experience leading web and/or mobile engineering teams
• Deep expertise with JavaScript, Node.js, React, React Native, and MongoDB • Experience building web apps with MERN or similar stacks • Experience building mobile apps with React Native or similar frameworks
• Excellent verbal and written communication skills
• Comfortable with Agile methodologies like Scrum and Kanban
• Strong leadership skills and commitment to building a world-class engineering team
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For the right candidate, e-Cosmos is ready to provide an extremely competitive salary and added incentive bonus potential
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✓ Accidental Death & Dismemberment Insurance
✓ Training and certification assistance
✓ Employee referral bonus program
✓ Vertical and Lateral increments
ETHICS COMPLIANCE:
: e-Cosmos is firmly committed to conducting business in compliance with the letter and spirit of the law and other accepted standards of business conduct as reflected in the company's policies.
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• Work with development teams and product managers to ideate software solutions
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Hands on experience in Spring Boot and good knowledge of MySQL, MongoDB
• Hands on experience in building RESTful based APIs
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
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• 7+ Yrs experience as a Full Stack Developer.
• Proven experience as a Full Stack Developer or similar role
• Experience developing Rich Internet based applications
• Experience with Spring boot and Angular 6 or above.
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages ( Java, NodeJS) and JavaScript frameworks (e.g. Angular, React)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind
Required qualification:
*) Any degree from a reputed university
*) Proven software development experience and Java/J2EE skills development.
- Ability to work in an existing codebase and collaborate with a diverse team
- Experience in building enterprise-scale backend REST APIs with frameworks such as Nest.js & Express.js using an API-first paradigm
- Intimate knowledge of crafting highly performant database queries
- Hands-on experience implementing relational database structures, including tables, indexes, views, etc.
- A mindset towards building systems for the cloud and DevOps fundamentals
- Working knowledge of cloud infrastructure services is good to have. If not then willingness to learn should be there.
- Focus towards building security, performance, and scalability into services from the beginning
- Experience with debugging code and troubleshooting technical issues in order to craft appropriate solutions
- Strong proficiency with JavaScript
- Experience in creating and deploying cloud-based web applications.
- Good at Jade, EJS,
- Good at CSS preprocessors (such as Stylus, Less, etc depending on your technology stack)
- Front-end technologies, such as HTML5, and CSS3
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system
- Understanding differences between multiple delivery platforms, such as mobile vs. desktop
- Creating database schemas that represent and support business processes
- Implementing automated testing platforms and unit tests
- Proficient understanding of code versioning tools, such as Git
- Experience with Node.js using web server-based frameworks such as Express.
- PLUS - experience with React.JS, React Native, vue.js javascript framework * Experience with Amazon Web Services
- PLUS - experience with Jenkins or other Continuous Integration tools
The Future of Customization is Here. Come build with us.
Scope of Work: Your work will encompass the below functions and domains expanding your exposure to lots of opportunities to grow as a software developer
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- 3D Designer Applications
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- Troubleshooting application and code issues
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- Updating application features for performance improvements
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- Experience in PHP Frameworks. Knowing CodeIgniter is beneficial
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- Previous experience inPHP. CodeIgniter
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- JS or any JS frameworks.
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- Good with JS to learn and make 3D applications.
- Code Versioning tools like GIT
- APIs
- Amazon AWS
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- Three.JS or similar to work on 3D customization applications.
- E-commerce websites, ERP, Scheduling or Management Applications
- WordPress
About Hyve:
Hyve is India’s first online customization portal for active wear. Hyve was started by a group of sports enthusiasts from IIM Ahmedabad and NIFT with the idea of making quality custom activewear easily accessible and affordable. Hyve brings to you at your fingertips, the best of customized sportswear to experience and enjoy every sport!
Hyve has grown from a single-room outlet to a leading custom wear manufacturer with fully-owned manufacturing units in Kerala and Tirupur. Through the online channel, Hyve has achieved a pan-India presence and caters to thousands of clients yearly.
Senior Full Stack Engineer
What is the role?
You will be responsible for architecting and developing features on the application end to end. You will be working closely with the Product Managers and the Technical architect to come up with high-quality, resilient, and highly performant applications.
Key Responsibilities
- Design and develop SaaS-based applications based on microservices architecture.
- Work on the core backend and ensure it meets the performance benchmarks.
- Work on the front end with ReactJS.
- Design and develop APIs for the frontend to consume.
- Constantly improve the application architecture by clearing the technical backlog.
- Meet both technical and consumer needs.
- Stay abreast of developments in web applications and programming languages.
What are we looking for?
An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.
- Education - BE/MCA or equivalent.
- Overall 4+ years of experience.
- Agnostic/Polyglot with multiple tech stacks.
- Worked on open source technologies – NodeJS, ReactJS, MySQL, NoSQL, MongoDB, DynamoDB.
- Good experience with Front-end technologies like JavaScript frameworks, ReactJS, AngularJS.
- Backend exposure – good knowledge of building API.
- Worked on serverless technologies.
- Efficient in building microservices to combine server and frontend.
- Knowledge of cloud architecture.
- Should have working experience with relational and columnar DB.
- Should be innovative and communicative in your approach.
- Were responsible for the functional/technical track of a project.
Who will you work with?
You will closely work with the Engineering team and support the Product Team of Empuls.
What can you look for?
A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality of content, interact and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the comprehensive benefits that offers.
We are
A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls and Compass. works with over 1000 global clients. We help our clients in engaging and motivating their employees, sales teams, channel partners and consumers for better business results.

- Design the architecture and their solutions
- Define user stories and implement them using agile methodology
- Engage and manage a team of software engineers; including task planning and code reviews
- Have technical ownership of the product
Must have:
- Fullstack experience (React, Node JS, VU, Python)
- Expert in web technology (SaaS)
- Know-how of cloud technology
- Broad experience with multi-platform development tools and toolkits
- Experience in release engineering and configuration management
- Comfort with both client-side and server-side development
- Passion for agile
- Knowledge of CICD pipeline
Bonus if you:
- Have experience working in the healthcare industry
- Are enthusiastic about all things brain science and/or mental well-being
- We are a company that highly values the ability to communicate well. We all take turns at the blog roster, so writing experience and/or enthusiasm is appreciated
- Our core values encourage empathy and innovation, you are gold if you share these
- You will ne Responsible for revamping of existing LMS Platform along with designing and developing new projects.
- Researching, designing, implementing and managing software programs
- Testing and evaluating new programs
- Identifying areas for modification in existing programs and subsequently developing these modifications
- Writing and implementing efficient code
- Determining operational practicality
- Developing quality assurance procedures
- Deploying software tools, processes and metrics
- Maintaining and upgrading existing systems
- Training users for new modules
- Hands on experience in LMS or CRM will be preferred
- Good knowledge on MySQL, ES6, Node.js, SaaS, AWS, Bootstrap and Css3














