MERN Stack Developer

Job Description: React + Node.js Full Stack Developer

Experience: 4+ Years

Location: HP, Bellandur Office, Bangalore

Joining: Immediate Joiners Only

Job Overview

We are looking for an experienced React + Node.js Full Stack Developer to build scalable, responsive, and high-performance web applications. The ideal candidate should have strong hands-on experience in React.js for frontend development and Node.js with Express.js for backend development.

Mandatory Skills

• React.js
• Node.js
• Express.js
• JavaScript (ES6+)
• REST API development and integration

Key Responsibilities

• Develop responsive and user-friendly web applications using React.js.
• Build scalable backend services and APIs using Node.js and Express.js.
• Design, develop, and integrate RESTful APIs.
• Integrate frontend and backend systems.
• Work with databases such as MongoDB, MySQL, or PostgreSQL.
• Write clean, reusable, and maintainable code.
• Troubleshoot, debug, and optimize application performance.
• Participate in code reviews and Agile development activities.
• Implement authentication and authorization mechanisms.

Preferred Skills

• Redux or Context API
• MongoDB, MySQL, or PostgreSQL
• Git version control
• JWT / OAuth authentication
• Basic knowledge of AWS, Azure, or GCP

Candidate Requirements

• Minimum 4 years of relevant development experience.
• Strong hands-on experience in both React.js and Node.js.
• Good understanding of full-stack application development.
• Immediate joiners only, due to urgent project requirements.
• Must be comfortable working from the HP Bellandur office in Bangalore.

What you’ll work on

• Build features from end to end. Translate product requirements into working interfaces, backend services and database changes, and follow them through testing and release.
• Create responsive web experiences. Develop reusable React and Next.js components, connect them to APIs, and handle forms, loading states, errors and accessibility across screen sizes.
• Develop dependable APIs. Build modular Node.js services with NestJS, Fastify and related frameworks, with clear contracts, input validation, authentication, authorization and consistent error handling.
• Design and improve data models. Work with PostgreSQL and MySQL for relational data, MongoDB for document models and Neo4j for connected data. Write efficient queries, use appropriate indexes and manage schema changes carefully.
• Integrate systems and workflows. Connect third-party services and internal APIs, manage asynchronous operations, and account for failures, retries and data consistency.
• Make quality part of delivery. Write meaningful unit and integration tests, review code, reproduce bugs and document API behavior and technical decisions.
• Improve performance and security. Investigate slow pages and queries, troubleshoot service errors, and apply secure coding practices to protect application data.
• Work closely with the team. Discuss trade-offs with designers and developers, break work into manageable tasks, and communicate progress and blockers clearly.

What you’ll bring

• A solid understanding of JavaScript or TypeScript, asynchronous programming and how web applications communicate over HTTP.
• Hands-on experience building React or Next.js interfaces and Node.js APIs, with familiarity with NestJS, Fastify or similar frameworks.
• An understanding of SQL, database relationships and querying, along with an interest in document and graph databases.
• Comfort with Git, code reviews, debugging and testing your work before handing it over.
• A practical approach to problem-solving, willingness to learn and ownership of the features you build.

Bonus skills

Helpful experience, rather than prerequisites for applying.

• CI/CD pipelines: Automating builds, checks, tests and deployments, working with environment-specific configuration, and understanding release and rollback workflows.
• Jenkins: Creating or maintaining Jenkinsfiles, organizing pipeline stages, handling credentials securely and diagnosing failed builds.
• AWS: Deploying or supporting applications using services such as EC2, S3 and RDS, with awareness of IAM permissions, networking and CloudWatch logs.
• Nginx: Configuring reverse proxies, routing requests to application services, setting up HTTPS, and troubleshooting timeouts, upload limits and access logs.

We are looking for an experienced Full Stack Developer to join our in-office engineering team in Hyderabad. You will build and maintain scalable, secure, multilingual web and mobile-facing products end to end — from intuitive front-end interfaces to robust back-end services and APIs.

Key Responsibilities

• Design, develop, and maintain front-end (React.js) and back-end (Node.js/Express.js) components.
• Build and integrate secure REST APIs and manage databases (MongoDB / SQL).
• Write clean, testable, well-documented code and participate in code reviews.
• Collaborate with product, design, and QA teams to ship features on schedule.
• Optimise applications for performance, scalability, and security.
• Troubleshoot, debug, and resolve production issues.

Requirements

• 3–10 years of hands-on full-stack development experience.
• Strong proficiency in React.js, Node.js, JavaScript/TypeScript, and REST APIs.
• Solid experience with databases (MongoDB and/or SQL) and version control (Git).
• Good understanding of responsive design, security best practices, and cloud deployment.
• Strong problem-solving skills and the ability to work on-site in a collaborative team.

What We Offer

• Competitive salary
• Opportunity to work on a fast-growing, cross-border product.
• A collaborative, in-office team environment in Hyderabad.

THIS ROLE IS MUMBAI-BASED MANDATORY

About Ungrammary

Ungrammary is an independent UX/UI design and digital product design studio partnering with ambitious businesses to build meaningful digital experiences. We work with teams across industries including fintech, SaaS, ecommerce and consumer brands, helping turn complex business problems into clear, useful and engaging products. Our work spans strategy, product thinking, UX, interface design and design systems. As a remote-first team collaborating with clients across geographies, we value thoughtful communication, ownership and a high standard of craft.

The role

We’re looking for a Full Stack Developer who can translate product and design requirements into reliable, production-ready web applications. You’ll work closely with our designers, project stakeholders and client teams to build features across the stack, make sound technical decisions, and take ownership from development through deployment. The role calls for someone who is comfortable working in a design-led, client-service environment where quality, timelines and clear communication matter.

Responsibilities

• Build, test and ship end-to-end web application features using MongoDB, Express.js, React and Node.js.

• Translate Figma designs and product requirements into responsive, accessible and maintainable front-end experiences.

• Develop and maintain RESTful APIs, including authentication, authorization, validation and error handling.

• Create reusable React components and manage application state using suitable patterns and libraries.

• Design MongoDB schemas; write efficient queries and aggregations; and consider indexing and performance.

• Integrate third-party services such as payment gateways, email/SMS providers, maps, cloud storage and OAuth.

• Collaborate with UX/UI designers, project managers, QA and other developers to clarify requirements and plan implementation.

• Estimate tasks, communicate progress and risks, and take responsibility for agreed deliverables.

• Write clean, testable code; participate in code reviews; and document important technical decisions.

• Troubleshoot production issues and improve application performance, security and reliability.

• Support deployment and maintenance, including environment configuration, hosting, monitoring and CI/CD workflows.

• Communicate clearly with internal stakeholders and, when required, international clients.

Required skills

• 2+ years of professional experience building and shipping full-stack MERN applications.

• Strong JavaScript (ES6+) fundamentals and working knowledge of TypeScript.

• React.js: hooks, component architecture, routing, forms, state management and performance fundamentals.

• Node.js and Express.js: API development, middleware, authentication, file handling and error management.

• MongoDB with Mongoose: schema design, aggregation pipelines, query optimization and indexing.

• Strong HTML5 and CSS3 skills, with experience using a framework such as Tailwind CSS, Material UI or Bootstrap.

• Ability to accurately translate responsive Figma designs into working interfaces.

• Git and GitHub workflows, including branching, pull requests and resolving merge conflicts.

• Experience using Postman or similar tools and working with API documentation.

• Familiarity with deployment fundamentals, Linux environments and production configuration.

• Good written and spoken English, with the ability to explain technical concepts clearly.

• A responsible, detail-oriented approach and the ability to manage work independently in a remote team.

Good to have

• Next.js, including server-side rendering and static generation.

• Experience with PostgreSQL or MySQL in addition to MongoDB.

• NestJS, Fastify, Prisma or other modern backend frameworks and tools.

• Cloud deployment experience on AWS, Azure, Google Cloud or comparable platforms.

• Docker and CI/CD tools such as GitHub Actions.

• Real-time application development using Socket.io or WebSockets.

• Unit and integration testing with Jest, React Testing Library or Supertest.

• Experience integrating platforms such as Stripe, Razorpay or Shopify.

• Performance optimization, accessibility and web security fundamentals.

• Productive use of AI-assisted development tools such as Claude, GitHub Copilot or Cursor.

What you can expect at Ungrammary

• Work on meaningful digital products and platforms across fintech, SaaS, ecommerce and consumer-facing businesses.

• Collaborate closely with experienced UX/UI designers and contribute to the quality of the final product—not just the code.

• Take ownership of features across the stack, from understanding requirements to implementation and release.

• Work in a remote-first environment that values autonomy, thoughtful collaboration and clear communication.

• Exposure to varied product challenges, technologies and client contexts.

• Opportunities to strengthen technical depth, product thinking and end-to-end delivery skills.

Responsibilities:

* Collaborate with cross-functional teams on project requirements and deliverables

* Develop user interfaces using React.JS and Express API's

* Implement database solutions with MongoDB and Node.JS

* Design, develop, and maintain responsive websites and web applications.

* Build reusable frontend components using React.js.

* Develop scalable backend APIs and services using Node.js.

* Integrate third-party services and payment gateways such as Stripe.

* Build RESTful APIs and integrate with modern databases.

* Optimize applications for maximum speed, scalability, and SEO.

* Collaborate with designers to translate Figma/UI designs into pixel-perfect interfaces.

* Implement authentication, authorization, and security best practices.

* Debug production issues and improve application performance.

* Participate in code reviews and mentor junior developers.

* Work within Agile/Scrum development processes.

Javascript, Callback, Async, Promise, Experience in writing restful APIs, Javascript, Nodejs, ReactJs, MySQL.

Immediate Joiner

Company Description

TopGrep Tech, an ISO 27001:2022 and DPIIT-certified IT pure tech product & services company. We work with global enterprises & startups, covering SaaS, MVPs, AI, RAG, MCP, reliability engineering, DevOps, and cloud innovation.

Role Description

This is a full-time on-site role located in the Greater Bengaluru Area for a Full Stack Engineer. The Full Stack Engineer will design, build, and maintain both front-end and back-end components of web applications. Candidates must demonstrate independent coding ability. Generative AI tools, AI coding assistants, and vibe-coding tools are not permitted during coding interview rounds. They will collaborate with cross-functional teams to deliver high-quality software solutions, ensure efficient system performance, and troubleshoot and resolve bugs and technical issues. This role also involves optimizing applications for maximum speed and scalability while following best practices and coding standards.

Qualifications

• Experience with Back-End Web Development, including server-side programming, APIs and database management
• Proficiency in Front-End Development, including JavaScript & Reactjs frameworks
• Strong foundation in Software Development and Full-Stack Development
• Ability to write, optimize, and debug code
• Excellent problem-solving and communication skills
• Familiarity with version control systems such as Git
• Experience with cloud platforms
• Bachelor's Engineering or Masters degree in Computer Science with equivalent practical experience

Requirements added by the job poster

• Bachelor's Degree

• Commute to this job’s location

• 1+ years of work experience with JavaScript Frameworks

• Working in an onsite setting

• 1+ years of Software Development experience

Required Skills/Experience

• 3-4 years of experience designing and/or developing web-based applications using JavaScript, Node, React, Angular, etc
• Strong understanding of JavaScript, browsers, mobile platforms, and real-time communication.
• Problem solving skills with data structures and algorithms.
• Hands-on experience developing responsive web applications and scalable backend systems.
• Strong experience in integrating third-party applications, APIs, and external systems.
• Ability to design, develop, and manage integrations between different platforms and systems.
• Hands-on experience using AI-powered development tools such as ChatGPT, Claude, GitHub Copilot, Cursor, or similar tools for coding, debugging, testing, and improving development productivity.
• Ability to learn and adapt to alternative technologies based on project requirements.
• Experience in the product development lifecycle, including prototyping, development, testing, hardening, and deployment.

Additional Skills/Experience  

• Experience with NoSQL databases such as MongoDB and Cassandra.
• Experience with UI component libraries and other popular JavaScript libraries and frameworks such as Vue.js.
• Eagerness to participate in product functionality and user experience design.
• Excellent group facilitation and communication skills, both verbal and written.
• Familiarity with i18n and the latest trends in UI/UX design.
• Experience implementing payment gateways applicable across different countries.
• Understanding of API integrations, authentication mechanisms, and data exchange between systems

Education Requirement

• B.Tech/M.Tech in CSE/IT/AI/ML only.

We are seeking a skilled React & Node.js Developer to join our development team. The ideal candidate will be responsible for building scalable web applications using modern frontend and backend technologies. You will work closely with cross-functional teams to design, develop, and maintain high-performance applications.

Key Responsibilities

• Develop responsive and user-friendly web applications using React.js
• Build scalable backend services and APIs using Node.js and Express.js
• Design and manage RESTful APIs
• Integrate frontend and backend systems
• Work with databases such as MongoDB / MySQL / PostgreSQL
• Write clean, maintainable, and efficient code
• Perform code reviews and participate in agile ceremonies
• Troubleshoot and debug applications
• Optimize applications for performance and scalability

Required Skills

• Strong experience in React.js (Hooks, Redux/Context API)
• Solid experience with Node.js and Express.js
• Good understanding of JavaScript (ES6+)
• Experience with REST APIs
• Knowledge of database systems (MongoDB, MySQL, or PostgreSQL)
• Familiarity with Git version control
• Understanding of authentication & authorization (JWT, OAuth)
• Basic knowledge of cloud platforms (AWS/Azure/GCP) is a plus

Generalist Full Stack Developer

Company: Taylor & Francis

Location: Bellandur, Bengaluru

Work Mode: Hybrid – 3 days Work From Office

Experience: 5.5–10 years

Employment Type: Contract-to-Hire (C2H)

About the Role

We are hiring experienced Full Stack Developers who are passionate about hands-on coding and building end-to-end applications. Candidates should have strong frontend and backend development experience, along with AWS and SQL knowledge.

Key Responsibilities

• Develop and maintain frontend interfaces and backend services.
• Build reusable UI components and manage application state.
• Develop APIs and integrate databases.
• Work with AWS cloud services and deployment infrastructure.
• Write clean, scalable and maintainable code.
• Contribute to technical decisions and application architecture.
• Take ownership of end-to-end development and troubleshooting.

Required Skills

• 5.5–10 years of relevant software development experience.
• Strong frontend experience with React.js or similar technologies.
• Backend development experience in Node.js (preferred), Java, Python or Golang.
• Hands-on experience with AWS and SQL.
• Good understanding of UI state management and performance optimization.
• Experience with Terraform or other Infrastructure as Code tools is an advantage.
• Strong coding and problem-solving skills.

Hiring Model

This is a Contract-to-Hire opportunity. Candidates will initially be employed on Geektrust Labs' payroll for 6–8 months, with a potential transition to Taylor & Francis' payroll based on performance and the conversion process.

Joining Requirement

Candidates must be available to join within 20 days, including those serving notice with a confirmed last working day within this period.

Interview Process

1. Technical interview with Geektrust.
2. Technical interview with Taylor & Francis.
3. Further technical round with Taylor & Francis.
4. HR discussion and offer process through Geektrust.

Interested candidates: Please apply with your updated resume.