MERN Stack Developer

About the Role

We’re looking for a Full Stack Developer who deeply cares about how things look, feel, and flow. Someone who writes elegant code and designs beautiful, functional experiences that users love.

You’ll work at the intersection of design and engineering, turning ideas and prototypes into smooth, high-performing applications built on React and Node.js. This role suits developers who think in pixels, obsess over transitions, and genuinely want every click and animation to feel just right.

Responsibilities

• Develop modern, responsive interfaces using React.js, TypeScript, and UI frameworks (Tailwind, Material, or similar).
• Transform design mockups and Figma prototypes into production-quality web experiences.
• Build scalable APIs and backend systems using Node.js, Express.js, and REST/GraphQL.
• Design and manage databases (MySQL, MongoDB) with efficient and clean data flow.
• Optimize for speed, accessibility, and smooth user interactions across devices.
• Collaborate with designers and product teams to refine visual and interaction details.
• Deploy, monitor, and scale applications on AWS (EC2, S3, CloudFront, Lambda, RDS).
• Maintain high code quality through clean architecture, testing, and peer reviews.

You’ll Fit Right In If You

• Love crafting beautiful, consistent, and intuitive interfaces.
• Notice when a button is off by a few pixels and care enough to fix it.
• Balance creativity with engineering discipline.
• Enjoy solving real user problems with thoughtful design and seamless performance.
• Have opinions about UX — and back them with reasoning, not ego.

Tech Stack

• Frontend: React.js, TypeScript, Redux / Zustand, Tailwind CSS, Styled Components
• Backend: Node.js, Express.js / NestJS, RESTful APIs, GraphQL
• Databases: MySQL, MongoDB, PostgreSQL (optional), Redis (caching)
• Cloud & Tools: AWS (EC2, S3, CloudFront, RDS, Lambda), Docker, CI/CD, GitHub Actions
• Bonus: Next.js, Figma-to-code workflows, WebSockets, Serverless functions

Qualifications

• 3–7 years of full-stack experience with a strong frontend/UI focus.
• Proven experience creating visually stunning and user-centered web apps.
• Deep understanding of frontend architecture, design systems, and responsive layouts.
• Solid knowledge of databases, API design, and deployment best practices.
• Bachelor’s degree in Computer Science or equivalent practical experience.

Why Join Us

• Build products that users actually love to use.
• Collaborate with a design-first, detail-oriented team.
• Work with modern tech and creative freedom.
• Shape the product’s visual identity and user experience end-to-end.

Skill set Requirement
RoR
Any front end frameworks (good to have)
Docker, Aws and Kubernetes
Sidekiq

Note : This position is for Pune location.  Please only apply if you are in pune or willing to relocate to Pune.

We are a product company with headquarter in New York and development centre in Pune.

 Job Description 

We are looking for a full stack developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s 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’re also familiar with Agile methodologies, we’d like to meet you. 

REQUIRED SKILLS

• Strong Web API & Application development experience - React/Angular/Vue. (Php/Python background is good to have) 
• Hands-on with REST API standards & ORM modelling 
• Experience in API gateway & Serverless functions implementations. 
• Experience in PWA, offline & real-time data modelling 
• Solid work experience with UI application development using standard patterns (MVC/MVP/MVVM) 
• Experience developing desktop and mobile applications (Responsive designs) 
• Experience in AWS App Sync & Amplify frameworks 
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery) 
• Knowledge of multiple back-end languages (e.g. Node.js, .Net Core, Python) and JavaScript frameworks (e.g. React, Vue.js & Angular) 
• Familiarity with databases (e.g. MongoDB, MySQL, Cassandra, AWS Dynamo DB, Azure Cosmos Db), web servers (e.g. Nginx/Apache/AWS/Azure containers) and UI/UX design 
• Excellent communication and teamwork skills 
• Great attention to detail 
• Organizational skills 
• An analytical mind 
• Degree in Computer Science, Statistics or relevant field 

Desired Skills 

• GraphQL / Apollo server integration 
• Ability to understand Hybrid or cross-platform applications using IONIC, React Native, Flutter 
• Ability to develop any test tools in Mac/Desktop 
• Experience with communication and messaging applications 
• Experience with security software and solutions 
• Experience in Python / JavaScript is good to have Responsibilities 
• Develop modular, reusable components for projects with industry-grade coding skills. 
• Ensure Project/Solution is implemented with full OOAD & design patterns methodologies 
• Design and build applications primarily for Web platform. 
• Ensure the performance, quality, and responsiveness of applications 
• Collaborate with a team to define, design, and ship new features 
• Identify and correct bottlenecks and fix bugs, Help maintain code quality, organization, and automatization

Roles and Responsibilities:

• Developing new user-facing features using React.js
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Experience with RESTful APIs
• Troubleshooting interface software and debugging application codes.
• Create database schemas that represent and support business processes.
• Implement automated testing platforms and unit tests.
• Optimize application for performance and speed.
• Implementation of security and data protection.
• Provide technical support to users.

Skills:

• At least 5 years of experience as a Java Developer or similar role
• Strong expertise in Java programming language and working Knowledge on Back-end technologies such as Spring/Spring Boot.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Familiarity with database technology such as MySQL, MongoDB.
• Good knowledge of Unit Testing.
• Experience with at least one of the Cloud Services such as AWS, GCP, Azure are plus.
• Familiarity with SCRUM methodologies
• Strong organizational and project management skills.
• Excellent verbal communication skills.
• Analytical and logical skills
• Good problem-solving skills.

Qualification:

• 3-4 years of experience working as a ReactJS Developer or in a similar role.

What we offer:

• Flexible working hours
• Up to 12 Lakh insurance
• Work life balance

About the company:

CogniTensor is an analytical software company that brings data to the heart of decision-making. CogniTensor leverages its product, DeepOptics - an integrated platform  to implement 3A (Automation, Analytics and AI) at scale. 

Cognitensor has customers ranging in Finance, Energy, Commodity, Retail & Manufacturing. More details can be found on our website: https://www.cognitensor.com/">https://www.cognitensor.com/

Our strategic investors include Shell and CIIE.CO (IIM-A/Accenture).

Qualification & Experience:

• BE/B.Tech Degree in Computer Programming, Computer Science, or a related field.

• +2 years experience as a Software Developer.

• Hands on experience in developing finance applications is must

Roles & Responsibilities:

We are looking for a Full Stack Developer to produce scalable software solutions. You’ll be part of a cross-functional team that’s 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. Along with familiar with Agile methodologies and testing skills

• Work with development teams and product managers to ideate software solutions
• Design client-side and server-side architecture
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Write technical documentation
• Excellent communication and teamwork skills

Technical Skills:

Must Have

• React JS
• Git / Bitbucket, 
• Express JS, Python, HTML, CSS, Node JS
• CI/CD like CircleCI
• Postgres or any DB knowledge
• Familiarity with AWS  or Azure or both 

Good to Have

• Docker
• Redux
• Android development
• React Native
• Electron
• GraphQL
• Jira

What’s in for you:

• An opportunity to lead a business segment
• Extensive liaising with customers and partners
• A rewarding career progression

Preferred Location:

Delhi NCR

•  Developing both frontend and backend of application using technologies like Java,   Angular, JavaScript, HTML5.
•  Designing user interactions on web pages.
•  Designing and Developing back end API's and databases.
•  Meeting both technical and customer’s needs.
•  Seeing through a project from conception to finished product.
•  Take complete ownership of the project and deliver with good quality.
•  Staying abreast of developments in web applications and programming languages.

• Relevant experience of 8+ yrs
• Strong communication, organizational skills. Good in Agile, Scrum, Dev-Ops practices.
• Proficiency with fundamental front end languages such as HTML5, CSS and JavaScript.
• Familiarity with JavaScript frameworks such as Angular, React and Amber.
• Proficiency in Java, Springboot, Microservices
• Familiarity with database technology such as PostgreSQL, MySQL, Oracle and MongoDB.
• Good in writing quality code and Unit Tests. Good knowledge of DevOps practices.
• Excellent verbal communication skills.
• Good problem solving skills

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.‍

• Design and develop SaaS-based applications based on microservices architecture.
• Work on core backend and ensure it meets the performance benchmarks.
• Work on the front end with ReactJS.
• Designing and developing APIs for the front end to consume.
• Constantly improve the architecture of the application by clearing the technical backlog.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.

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 in combining server & front-end.
• Knowledge of cloud architecture.
• Should have sound working experience with relational and columnar DB.
• Should be innovative and communicative in approach.
• Will be responsible for functional/technical track of a project.

You will closely work with the engineering team and support the Product Team of Compass.‍

A wholesome opportunity in a fast-paced environment will enable you to juggle between concepts yet maintain the quality of content, interact, share your ideas, and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.

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. Xoxoday works with over 1000 global clients. We help our clients engage and motivate their employees, sales teams, channel partners, or consumers for better business results.‍

We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. However, we assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.