11+ GCMS Jobs in Mumbai | GCMS Job openings in Mumbai

• Write, test, debug and ship code and gather feedback on the scale, performance, security to incorporate back into the platform. 

• Work with the founders to identify complex technical problems and solve them. 
• Work with the product design and client experience development team to support 

them with scalable services 

• Feed into the overall mission and vision of the eParchi’s platform over the period of the coming months and years. 

• An ability to perform well in a fast-paced environment 
• Excellent analytical and multitasking skills. 

Wissen Technology is Hiring for React Developer

About Wissen Technology:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Job Summary:

We are seeking highly motivated React Developer

Experience: 8+ Years

Location: Pune/ Mumbai

Mode of Work: Full Time

Key Responsibilities:

• Should have 8+ years hands on experience in web technologies like JavaScript, HTML5 & CSS.

• Expert level knowledge of JavaScript including latest edition(s) of JavaScript (ES2023). Knowledge of typescript is a plus.

• Hands on experience with JavaScript frameworks like React 17 and above versions

• Good understanding of asynchronous request handling, partial page updates like Promises, RxJS

• Proficient in advanced CSS3, HTML5 and Bootstrap. Exposure to css-in-js libraries like styledjs or others is beneficial.

• Able to translate mockups in figma or illustrator to actual working components.

• Working experience on testing tool like karma/jasmine/enzyme.

• Basic understanding of nodejs is beneficial.

• Proficient understanding of code versioning tools, such as Git

• Excellent analytical/reasoning skills

• Good team player

• Excellent written and verbal communication skill

Location: Mumbai

Experience Required: 2+ Years

Job Type: Full-Time

Notice Period: Immediate Joiners

About the Role

We are seeking a skilled and experienced Front-End Developer to join our product engineering team. The ideal candidate must have experience working in a product-based software development company and should have hands-on involvement in e-commerce platform projects.

Mandatory Criteria

• Candidate must be currently working or have prior experience in a product-based software development company
• Candidate must have worked on at least one e-commerce platform project (end-to-end involvement)

Key Responsibilities

• Develop and maintain responsive, high-performance web interfaces using React.js
• Translate UI/UX designs into pixel-perfect, reusable front-end components
• Optimize components for maximum performance and cross-browser compatibility
• Integrate front-end components with backend RESTful APIs
• Collaborate with design, backend, and QA teams to deliver seamless user experiences
• Participate in code reviews, testing, and agile development ceremonies

Required Skills

• Strong proficiency in JavaScript (ES6+), React.js, HTML5, and CSS3
• Experience with state management libraries such as Redux or Zustand
• Solid understanding of responsive design and cross-browser compatibility
• Familiarity with RESTful APIs and API integration
• Knowledge of version control systems like Git
• Understanding of performance optimization, debugging, and front-end testing practices

·      7+ years of professional experience in front-end development.

·      7+ years of hands-on experience with React.js and its ecosystem (Redux, Context API, Hooks, etc.).

·      Strong understanding of JavaScript (ES6+), HTML5, and CSS3.

·      Experience with RESTful APIs, GraphQL, and WebSocket integration.

·      Proficiency in modern build tools (Webpack, Vite, Babel, etc.).

·      Expertise in state management libraries (Redux, MobX) and React Query.

·      Solid understanding of UI/UX principles and responsive design.

·      Experience with testing frameworks (Jest, React Testing Library, Cypress, etc.).

·      Familiarity with modern CI/CD pipelines and version control tools (Git).

Job Description

It is a platform for parents to find and book kids' activity classes in their neighbourhood.

We are currently hiring a Frontend developer for a startup in the B2C marketplace space based out of Mumbai.  This startup is an Online Marketplace, that serves as a Discovery and Booking Platform for Kids’ Activity Classes. Operations were launched in  November 2019, and have over 20KParents and 500+ educators listed on our Platform across the major Tier-I and Tier-II cities in India.

Platform details are listed below :

1. A SaaS platform for educators to simplify the management of their classes and workshops.
2. Educators get access to a dashboard and use our Class Management tool to create listings, view registrations, manage bookings and payments.
3. The dashboard also provides analytics for teachers to track visitor traffic, see drop offs and understand which social media channel generates maximum ROI for them.
4. Discovery & Booking Platform for parents so that they can search, view and book classes and workshops for their children.

Top 2 role must have’s

1. You should have REACT JS experience of building a product
2. You should be willing to work in a very early stage startup

Tech skills required for this role:

• Front end design in REACT JS at least 1.5 years
• AWS server
• Mongo Database
• API's written in Nodejs

Required Skills:

• Proven development experience on smartphone platforms.
• Hands-on experience on React Native Framework, including React JS, React Native, and JavaScript.
• Extensive programming experience with at least one programming language such as Swift, Java, JavaScript.
• Deep familiarity with iOS or Android development.
• Familiarity with RESTful APIs
• Familiarity with code versioning and CI/CD tools like Git, SVM, Jenkins.
• Must have worked on at least one app that is published in AppStores.

• Work with the client and internal web development team to design new products or enhancements.
• Take part in system development including analysis, coding, and testing in an agile product development team.
• To develop business requirements into cost-effective and elegant technical solutions.
• Perform peer design and code reviews with other software engineers.
• Help to evaluate requirements and solutions from a technical perspective and implement custom built solutions. 
• Perform estimates of user stories that are to be implemented to help with product engineering planning.
• Work with backend development members to co-create APIs for frontend consumption
• Mentor less experienced team members on proper standards/techniques to improve their development practices and efficiency.
• Write scripts to perform unit testing, functional testing and assist with user acceptance testing support.
• Optimize UI for efficiency and maintainability
• Perform non-production and production deployment processes as scheduled.
• Provide on-going support to the application.

•  6+ years of web UI development experience including 4+ years of deep, hands on experience in building robust, highly reusable and responsive web applications using HTML, CSS3, SVG, React, Redux, Thunk ecosystem
• Great problem-solving skills with solid data structures and algorithms knowledge
• Strong ability to translate the design/wireframes into reusable micro components
• Experience of leading, coaching and mentoring junior developers with good delegation and time-management skills
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles and has extensively worked with Redux, Thunk, Axios etc
• Knowledge of modern authorization mechanisms, such as JSON Web Token, Oauth2 etc
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• A knack for perfection, benchmarking and optimization
• Writing and maintaining batch jobs to streamline processes (Shell, Perl etc).
• Strong understanding of Agile and Lean software development processes and practices
• Worked with WebSocket, Push notifications etc
• Experience working with local-storage, cookies etc
• Proficient understanding of CORS issues and ways to work with such issues.
• Proficient understanding of social network APIs.
• Experience with data structure libraries (e.g., Immutable.js)
• Inclined to take ownership of tasks and to ship highly polished products with excellent attention to detail.
• Strong verbal and written communication skills in English.
• BE/BTech in Computer Science or a related field or equivalent practical experience