MEAN / MERN Stack Developer

Job Title - MERN Stack Developer

Experience Range – 3 to 6 Years

Location- Mumbai (Andheri East)

Mode- 5 Days working from office

Some specific Requirements:

• You have prior experience developing and working on consumer-facing web/app products
• Hands-on experience in JavaScript. Exceptions can be made if you’re really good at any other language with experience in building web/app-based tech products
• Expertise in Node.JS and Experience in at least one of the following frameworks - Express.js, Koa.js, Socket.io .
• Good knowledge of async programming using Callbacks, Promises, and Async/Await
• Hands-on experience with Frontend codebases using HTML, CSS, and AJAX
• Working knowledge of MongoDB, Redis, MySQL
• Good understanding of Data Structures, Algorithms, and Operating Systems
• You've worked with AWS services in the past and have experience with EC2, ELB, AutoScaling, CloudFront, S3
• Experience with Frontend Stack would be added advantage (HTML, CSS)
• You might not have experience with all the tools that we use but you can learn those given the guidance and resources
• Experience in Vue.js would be plus

Note: We are looking for real, hands-on experience—not certifications or copy-paste portfolios. Selected candidates will be given a short real-world task to evaluate skills before interview.

Key Responsibilities

• Design, build, and maintain scalable full-stack applications using MongoDB, Postgresql, Express.js, React.js, and Node.js
• Develop RESTful APIs and integrate them with frontend systems
• Collaborate with designers and project managers for timely project delivery
• Optimize code for performance and scalability
• Troubleshoot, debug, and upgrade applications as needed
• Follow Git-based workflows for version control

Must-Have Skills

• Strong hands-on experience in:
• React.js with hooks, context API, component architecture
• Node.js with Express.js
• MongoDB (CRUD operations, schema design) & Postgresql
• API development and integration
• Strong JavaScript fundamentals (ES6+)
• Basic understanding of deployment (e.g., cPanel, Vercel, Heroku, or VPS)
• Git and GitHub for code versioning

Good-to-Have Skills

• Knowledge of Redux or any other state management tools
• Experience with Next.js or TypeScript
• Familiarity with Tailwind CSS or Material UI
• Experience integrating third-party APIs (e.g., payment gateways, social logins)

Who Should Apply

• You’ve worked on real client projects or have built and shipped working applications.
• You are disciplined and take ownership without constant follow-up.
• You are not here to "fake it till you make it"—you’re here to grow with a real team.

Dear Applicants

We are looking for a person to join our team and take an active role in building up Software products for our customers. The Candidate must have at least 3 years of experience in product development. Our ideal candidate should have experience in standalone long-term product development with MERN stack, team-leading skills, and the ability to scale the product functionalities to achieve the organization's goals.

Job Description

As a Senior Product Developer at Certcube, you will play a crucial role in developing and enhancing our in-house products. Your experience in Express JS, React JS, TypeScript, Visualization libraries, REST/ GraphQL API, and Generate AI will be invaluable in shaping the future of our product offerings. 

Responsibilities

• Collaborate with product managers, designers, and front-end developers to understand product requirements and translate them into technical specifications.
• Develop and maintain products using Express, React, Node.js, and REST / GraphQL, ensuring high performance, scalability, and security.
• Implement Data visualizations and data analytics capabilities for better visibility of data with MERN technologies.
• Design and implement APIs for seamless communication between frontend and backend components.
• Implement Authentication and seamless authorization capabilities using the MERN stack. 
• Manage and maintain backend databases like Mongo DB, and PostgreSQL.
• Integrate AI and machine learning capabilities into our cybersecurity products using predictive algorithms. 
• Ensure the security of our products by implementing best practices and staying up-to-date with the latest cybersecurity trends.
• Perform code reviews, identify and fix bugs, and optimize application performance.
• Participate in the development of product roadmaps, making technical recommendations, and contributing to feature planning.
• Mentor and guide junior developers, fostering a collaborative and innovative development environment.

Qualifications and Skillset

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
• 3 years of professional experience in backend development, with a strong focus on React JS, TypeScript, Node, and Express framework.
• Proven expertise in GraphQL and experience with Generate AI or other AI/ML frameworks.
• Prior experience as a product developer in the cybersecurity domain is highly desirable.
• Strong knowledge of cybersecurity concepts and best practices.
• Proficiency in database design and management Excellent problem-solving skills and the ability to work independently and in a team.
• Strong communication skills, both written and verbal.
• Certifications in relevant technologies or cybersecurity are advantageous.

Benefits

• The chance to make a meaningful impact by contributing to the development of cybersecurity products that protect data and systems.
• Potential for career advancement within the company, including promotions to higher-level development or leadership roles.
• An inclusive and positive company culture that fosters collaboration and innovation.

Job Type: Full-time (In office)

Start Date: Immediate

Documents Requirement- Last job relieving letter, ID Proof, Last job offer letter, Updated CV, Last qualification certificate

We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full stack developers are responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Full stack developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.

Full Stack web developer responsibilities:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back-end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Staying abreast of developments in web applications and programming languages.

Job Types: Full-time, Fresher

Salary: ₹25,000.00 - ₹55,000.00 per month

Skills we are looking for :

- Experience in developing full-stack applications at scale in ReactJs/AngularJs & NodeJs.

- Strong knowledge and experience in HTML(5), CSS, SCSS, and Advanced JavaScript

- Good knowledge of coding RESTful APIs.

- Strong knowledge of Web Storage (Cookie, Local Storage, and Session Storage)

- Knowledge of modern authorization mechanisms, such as JWT

- Familiarity with modern front-end build pipelines and tools

- Ability to work in a lean-agile development environment.

Good to know :

- Using GIT

- Knowledge of AWS

- Familiarity with GraphQL will be a brownie point

We are looking for a Full Stack Developer to produce scalable software solutions. You will be part of a cross-functional team that is responsible for the full software development life cycle, from conception to deployment.

As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

If you have enough confidence and ready to adopt new technologies, you might be a great fit for the requirement.

Responsibilities

• Work with development teams and higher management to ideate software solutions as per requirement

• Design client-side and server-side architecture

• Build the front-end of applications through appealing visual design

• 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/tab responsive design

• Write technical documentation

• Work with data scientists and analysts to improve software

Required Skills

• Proven experience as a Full Stack Developer or similar role

• Experience developing desktop and web applications

• Familiarity with common stacks

• Knowledge of multiple opensource front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)

• Knowledge of multiple opensource back-end languages (e.g. Python) and JavaScript frameworks (e.g. React, Node.js)

• Familiarity with databases (e.g. PostgreSQL, MongoDB), web servers, and UI/UX design

• Well knowledge about Docker and other DevOps technologies

• Ready to adopt new technologies as per requirements.

• Great attention to detail * Organizational skills

• An analytical mind

Overview

Xcelpros is a Global company, headquartered in Chicago (US) with multiple locations in US and Bengaluru, India. Our focus is Tech Innovation, Product Development and Technology Consulting.

We are hiring for our Product Development team and have an immediate need for a Backend Developer / Fullstack MERN Developer. The position calls for someone with a mindset who can build great products, manage multiple projects and related tasks on deadline. We are looking for high-quality and passionate developers that want to be a part of a great product team.

You need to have at least 2 years of demonstrated experience  as a Backend Developer using MERN (NodeJS, MongoDB, PostgreSQL & Express) & GraphQL technologies. The candidate will work closely with our internal teams in the design, development, launch and enhancement of various products.

About XcelPros

XcelPros is a Global company, headquartered in Chicago (US) with multiple locations in US and Bengaluru, India. XcelPros is focused on Tech Innovation, Product Development and Technology Consulting.

XcelPros specializes in technology solutions for Business-to-Business (B2B) and Business-to-Consumer (B2C) areas. We believe technology is the enabler of exponential growth for us and our customers. We are strategists delivering innovative business and technology solutions.  We have been well funded and operational since 2011.

XcelPros and affiliated group of companies are proud to foster a high-performance culture, one that's defined by having the best people, with the skills and determination to deliver above and beyond. We look for insightful and astute professionals who are also forward-thinking, confident, self-motivated and globally minded. Our core team consists of professionals with a wide range of skills and backgrounds.  XcelPros is continuously looking for talented, highly motivated individuals who believe in excellence and are committed to providing superior service to our customers and stakeholders. 

Experience

• Minimum of 2 years of experience in the design and development of  Web and Mobile applications using NodeJS, MongoDB, PostgreSQL, Apollo - GraphQL and React
• You are required to have experience with development in Microservices Architecture 
• Experience with NestJS framework is a major plus
• Hands on experience with GoLang is not mandatory but a major plus

Start Date - Immediate

Positions - 2 (Immediate Need)

Responsibilities

• Minimum of 2 years of hands-on experience building applications in NodeJS, MongoDB, PostgreSQL, Apollo - GraphQL and React
• Strong and mandatory experience of 2 years of experience in building applications using the Microservices architecture in NodeJS
• Strong and mandatory skills in Automating Components, Perceptibility, Configuration Management, Debugging & Consistency while writing Microservices.
• Experience building applications using NestJS or similar frameworks is a major plus 
• Experience building applications and service integrations using Apollo /  GraphQL
• Adhere to best practices of engineering by writing high-quality code.
• Hands on experience in Elastic Search and related technologies
• Hands on experience with one or more testing frameworks such as  Jest
• You are required to write / conduct unit & integration testing to ensure code meets high-quality standards
• Collaborate with multiple stakeholders, including Production Support, BAs, Architect, Project Managers, and Product Owners to deliver high quality solutions.
• Develop, build, configure and unit test solutions from low level designs
• Ensure that solutions meet requirements outlined in the design documentation
• Perform all work to agreed time, cost and quality constraints
• Ensure that developed solutions are peer reviewed and formally documented
• Design, develop, test and document detailed technical specifications for application components built using MERN (MongoDB, ExpressJS, ReactJS, NodeJS) stack and integrations
• Develop and maintain high traffic / high performance React and Node based e-commerce web applications and web services, including support for mobile
• Participate in support activities to help UI developers integrate with APIs / services
• Create and maintain scalable infrastructure leveraging modern AWS cloud platforms
• Knowledge of all development aspects within an Agile SDLC framework, including; estimation, design, development, unit test, code reviews, and documentation
• Develop solutions that satisfy business requirements as outlined in user stories, and within agreed upon timelines
• Ensure solutions are of high-quality with regards to following standards and best practices, as well as satisfying security and performance requirements
• Collaborate effectively with other Agile team members
• Work with the Production Support team in the research and resolution of production issues.
• Prior hands-on experience with architecture for Web and Mobile technologies, E-commerce, Payment Gateways, Data security and encryption is a major plus
• Experience with CICD, containers and container management platforms(Dockers, Docker Swarm/Kubernetes, etc.)
• Knowledge of GOLANG is a major plus
• Good understanding of the Twelve-factor App methodology is a major plus
• Experience defining new architectures and ability to drive project from an architecture standpoint is a major plus
• Experience with Security configuration is a major plus
• Experience in understanding platforms & key AWS services like Elastic Beanstalk, AWS Lambda, ECS, AWS Fargate, EKS, EC2, S3 etc. is a major plus
• Troubleshoot and resolve complex technical issues in cloud integrations
• Highest levels of code quality
• Needs to conduct weekly code reviews
• Ensure timely and quality release of the product in collaboration with other team members
• Must be a self-starter and able to build up presence in the team.
• Perform other related duties as assigned

Technical Expertise / Hands-On Skills:

• MERN (MongoDB, ExpressJS & Node JS)
• PostGreSQL
• Apollo GraphQL
• JEST
• RESTAPIs

Key Deliverables

• Develop very high sense of ownership, the zeal to build scalable applications
• Develop a deep understanding of product development and start-up ecosystem
• Work with a performance oriented team driven by ownership and open to experiments
• Build customer facing technology product for global customers
• Collaborate with development teams to help identify and develop reusable platforms/libraries.

Key Requirements

• Can do attitude
• Highly motivated to bring fresh thoughts to the table
• Highly creative and most importantly willing to exercise it
• Self-starter and self-learner focused on research and learning
• Ability to play a variety of roles and most importantly take accountability
• Ability to communicate openly and embrace various perspectives without judgment
• Believe in a ”No politics” attitude. Politics can be detrimental to yourself and the organization.

Rawster is the digital interface for real life sports.
An early-stage startup that's set on blurring the line between Sports and E-sports.

Position

Full Stack Engineer (MERN stack)

Eligibility Criteria

• Minimum one year of working experience
• Must have skills : Experience in working with Full Stack Applications
• Exceptions can be made if proof of skill exists.

We are looking for a Full Stack JavaScript and NoSQL Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include implementing visual elements and their behaviors with user interactions. You will work in both front-end and back-end web development to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions. Build reusable code and libraries for future use

Development stack

Reactjs

React Native (Typescript)

Node.js

Koa.js/Express.js

MongoDB with Mongoose

PostGreSQL with knex

Remuneration : Based on skill and expertise,

ranging from* 5 to 11 Lakhs Per Annum*

You can expect..

• to play a role in the revolutionisation of Sports.
• a passionate and fast moving work culture; We are a tight-knit team.
• to experience the Victories and Struggles of an early-stage startup.
• to learn and grow with the team.
• competitive salaries and benefits.

Responsibilities and Duties

• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Manage server side javascript code.
• Ensure performance, security, and availability of database
• Handle common database procedures such as upgrade, backup, recovery, migration, etc.
• Profile server resource usage, and optimize and tweak as necessary
• Collaborate with other team members and stakeholders
• Adaptability, ability to learn faster, Independant, Responsible and diligent
• Good team spirit and interpersonal skills, excellent written, verbal, communication skills, analytical skills and business thinking.

Qualifications and Skills

• Strong understanding of JavaScript, its quirks, and workarounds
• Basic understanding of web markup, including HTML5 and CSS3
• Experience with advanced CSS programming using LESS or SASS.
• Strong understanding and experience in libraries React.js and React Native
• Strong understanding and experience in Node.js and other server side technologies.
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Familiarity with front-end build tools, such as Grunt and Gulp.js
• Strong proficiency with NoSQL e.g MongoDB. Knowledge of SQL DBMS is a bonus.
• Ability to plan resource requirements from high level specifications
• Capable of troubleshooting common database issues
• Familiar with tools that can aid with profiling server resource usage and optimizing it
• Proficient understanding of code versioning tools, such as Git

Job Type: Full-time

Salary: ₹500,000.00 to ₹1,100,000.00 /year