Full Stack Developer (MERN)

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).

Job Description:

We are seeking a skilled MERN Stack Developer to join our team. The ideal candidate will have 3 to 7 years of experience in developing web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js). You will be responsible for designing and implementing innovative solutions to meet our company's needs. If you are passionate about technology and thrive in a fast-paced environment, we want to hear from you.

Responsibilities:

Develop and maintain web applications using the MERN stack.

Collaborate with cross-functional teams to define, design, and ship new features.

Write clean, efficient, and maintainable code.

Implement front-end interfaces using React.js.

Design and develop RESTful APIs using Node.js and Express.js.

Integrate third-party APIs as needed.

Optimize application performance for maximum speed and scalability.

Troubleshoot and debug issues that arise during development and in production.

Stay up-to-date with emerging technologies and best practices in web development.

Requirements:

Bachelor's degree in Computer Science, Engineering, or related field.

3 to 7 years of experience in web development.

Proficiency in the MERN stack (MongoDB, Express.js, React.js, Node.js).

Strong understanding of JavaScript, HTML, CSS, and related web technologies.

Experience with front-end frameworks such as Bootstrap or Material-UI.

Knowledge of state management libraries such as Redux or MobX.

Familiarity with version control systems (e.g., Git).

Excellent problem-solving and communication skills.

Ability to work independently and as part of a team.

Experience with Agile development methodologies is a plus.

Knowledge of GraphQL is a plus.

Felicity literally means 'happiness'. We were conceived with the mission to make the world a happier place. Our core team is a mix of young startup leaders and seasoned doctors. Our mission in life is to make top-class talk therapy affordable and available anytime, anywhere to all those who could benefit from it. We strongly believe that mental health goes beyond labeled psychiatric illnesses and encompasses stress, anxiety, and other uncomfortable feelings that we have daily. We seek to spread that awareness and increase the number of people seeking therapy at the right time to improve their well-being. If you relate to the mission and it excites you to be part of an early-stage startup journey, we invite you to help us make the world happier, one life at a time.

The opportunity we are looking for a MEAN Stack developer to manage the frontend, backend and server-side of our Product. We are looking for someone passionate about performance, reliability, and design with the experience and credentials to back up that passion. Someone who can take ownership of applications, work on responsive design and solve technical challenges and take pride in their solutions and code. The person should be able to translate the business requirements into world-class code.

• Work with development teams and product managers to ideate software solutions
• Build the front-end and back-end applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective REST 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
• Provide technical expertise and leadership for Web Technology
• Provide design feedback to our design team
• Be responsible for end-to-end development and support cycle
• Provide client-facing presentations and support as needed.

• Strong knowledge and working exposure on the MEAN stack.
• Good understanding of server-side templating languages
• Creating database schemas that represent and support business processes
• Proficient understanding of code versioning tools, such as Git
• Understanding of Time-Space Complexity / Optimization
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Ability to design and build extremely reliable, scalable, and high-performing enterprise systems
• Knowledge and experience with AWS cloud environment and services
• Deep understanding of Software Development methodologies, delivery frameworks
• Experience working with the latest design patterns
• Passion for clean design and library/modular grade coding
• Ability to work in agile methodologies in a distributed team environment.
• Experience working with Git and GitFlow model
  
  

Required Experience and Skills:

• Hands-on experience in ReactJS 6.x+, HTML5, CSS, Bootstrap, Node js
• 1+ years of experience in cross-browser compatible responsive web application development using React.
• Good knowledge about Reactive programming using RxJS and Redux.
• Knowledge and use of Restful web services, Gulp / Grunt.
• Experience working with debugging/testing tools like Firebug Lite, Chrome or Safari web inspectors.
• Version Control – GIT
• Servers / Application frameworks – Apache / Nginx / ExpressJS
• Selecting and deploying appropriate CI/CD tools
• Strive for continuous improvement and build continuous integration, continuous development, and constant deployment pipeline (CI/CD Pipeline)

Responsibilities:

• Ability to translate Wireframes and PSD to high quality designs and functional web apps using HTML5, ReactJS, Node.js, and Mongo
• Develop interactive, user-friendly applications using the ReactJS
• Binding of UI elements to JavaScript object models
• Creating RESTful services with Node.js
• Architect scalable web architectures
• Developing for Back-end Web Applications using NodeJS and Express
• Creating servers and databases for functionality
• API design, creation and integrations
• Staying abreast of developments in web applications, app development and programming languages
• Effective communication with different stakeholders.

• Experience of min 7-10 years in Technology

• Master’s Degree / relevant certification

• Enable the team to design solutions with a sustainable architecture in mind, collaborating in building a clear and shared understanding/vision of it within the team.
• Actively support team wellness through building an environment of trust, openness and safe experimentation.
• Train and Mentor the team in the correct understanding of technical practices, enabling the team to identify how to get most value out of them within the context of the project.
• Comply with development and corporate processes and standard practices.
• Status reporting.
• Responsible for defining and setting baselines.
• Plan, schedule, execute, report and control the strategy to move releases to staging and live environments, ensuring the integrity of the live environment is protected and that the correct components are released.
• Take care of team logistics in terms of anticipating development environment needs and engaging whoever needed to make them timely available for the team.

• Expert knowledge of key Web technologies as HTML5, CSS3, 
• Expect in JavaScript / AJAX, NodeJS, React.
• Expert knowledge of OO Analysis and Design, 
• Expert on Design Patterns and Frameworks as NodeJS, React.
• Knowledge of Agile methodologies (Scrum).

• Candidate must possess good communication skills.
• Creative bent of mind
• Self-motivation to work independently and strong work ethic.
• Ability to work in a team, and adapt to new and evolving processes.
• Flexibility with shifts & week offs is a must.
• Team management 
• Capacity to understand and develop a business Vision
• Flexibility and adaptable
• Goal-Oriented
• Experience leading and managing a team
• Mentoring a team
• Deep experience with Agile
• Passion around technology
• Creative
• Player- coach mentality
• Strong communication skills

Roles and responsibilities:-

Risurge is looking for an experienced and motivated Senior Full Stack professional to be an integral part of its Apps team. The Apps team is an essential part of the Technology team at Risurge and works on solving technical challenges related to processing, visualization and presentation of continually scaling data in an easily accessible manner on the Risurge platform. 

You will need to have hands-on experience in the latest technologies and skills like ReactJS, NodeJS, ExpressJS, PostgreSQL, Webpack, REST API etc. This role is ideal for you if you have a background in Full Stack development and are looking for the next level of career growth in a fast paced, learning based and merit driven work environment.

What we are looking for:

-Strong coding and design skills

• Good command over Data Structures & Algorithms
• The ability to produce bug-free and production grade code
• Skills we consider: React.JS, D3.Js, Node.js, Express.JS, webpack. Bootstrap, Material UI, PostgreSQL, Redis, ELK, Ansible, AWS, Docker

Key Deliverables:-

• Develop very high sense of ownership, the zeal to build scalable applications
• Develop a deep understanding of the start-up ecosystem
• Work with a performance oriented team driven by ownership and open to experiments
• Build customer facing technology product for global customers
• Design and develop end to end applications with very high quality

What we have to offer:-

• Work with a performance oriented team driven by ownership and open to experiments.
• Learn to design systems for high accuracy, efficiency and scalability.
• No strict deadlines, focus on delivering quality work.
• Meritocracy driven, candid culture. No politics.
• Very high visibility regarding which startups and markets are exciting globally.

Essential Duties and Responsibilities:

• Execute full lifecycle software development
• Develop, designed well efficient code
• Integrate software components into a fully functional software system
• Fully adaptive to the technology needed for the current project

Requirements:

• Minimum 8 year of strong demonstrated knowledge in PHP, Mysql, Mongodb, Jquery, SASS
• Algorithms, data structure.
• Object-oriented programming.
• AWS/Server experience to handle production machines is a plus.
• Team Management mandatory
• Experience on PHP, PHP Frameworks, Ajax, Knowledge on CMS platform like Opencart, payment gateway integration, experience working on portals.
• Familiarity with software development methodology and release processes.
• Strong problem-solving skills and excellent communication skills
• Product based company preferable
• Startup experience preferable