Fullstack Developer at QToss Technology Solution Private Limited · Noida, Delhi, Gurugram, Noida · 3 - 5 years · ₹3L - ₹9L / yr (ESOP available) · Bootstrapped · Posted 25 Aug 2021
Duties and responsibilities:
- Design and defining architecture of complex web applications and microservices.
- Address and improve any technical issues
- Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant, and efficient systems
Requirements and Qualifications:
- Previous working experience as a MEAN Stack Developer for 3 years
- BSc/B.tech degree in Computer Science or similar relevant field
- In-depth knowledge of NodeJS, ExpressJS or Restify
- Experience implementing applications using Angular or React
- Experience creating front end applications using HTML5, Angular, LESS/SASS
- Hands-on experience with JavaScript Development on both client and server-side
- Experience with modern frameworks and design patterns, minimum one-year experience with MEAN stack paradigm
- Knowledge of the following will be considered as an advantage:
- Consumer Web Development Experience for High-Traffic, Public Facing web applications
- Experience with cloud technologies like AWS or google cloud is also a plus
- Creating secure RESTful-based web services in Node js and Express and MongoDB.
- Continuous integration (Jenkins/Hudson) and version control (SVN, Git)

About QToss Technology Solution Private Limited
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About the Job -
We have always been in the spotlight for being adeptin “the next big technologies”. What we can offer you is a space to explore varied technologies and quench your techie soul. We are looking for Developer skilled in technologieslike Node.js and AWS who also holds experience with user-interface design.
Responsibilities: ● The full stack developer will be responsible for design and development of scalable and flexible web applications and creating API to connect to databases and applications from back-end to client-side code, using optimal and efficient technologies, frameworks, and patterns.
● Take responsibility for design, implementation and maintain existing development ecosystem, including bugs – fixing, design and develop new custom components to meet project requirements.
● Working with other developers and software engineers to develop front-end and back-end architecture that's well-structured and flexible, along with the APIs to support it.
● Install and configure server environments for React deployments maintain and update project dependencies as well as fix any conflicts.
● Responsible for regular communication with developer team involved in the development process and testing of new features in the application
● Analyzing requirements and designing new functionality for new projects with cutting edge technology with research on optimization and new features for the existing product by ensuring a required level of performance.
● Candidate must be abreast with latest technologies and trends, relevant standards should be able to work effectively in a multidisciplinary, multinational team environment focused on innovation with comfortable working on a range of problems.
Desired Competencies(Technical/Behavioral Competency) – Must Have-
● Nodejs, MongoDB, Socket.IO and Redis.
● Proficient in Node.js and MongoDB and working knowledge of JavaScript, JQuery, HTML, CSS, frameworks (Angular.js, React.js)
● Experience with Unix/Linux or Windows and/or Mac environments, distributed systems
● Excellent practical knowledge of OOP concepts and SOLID principles ● Microservices and agile development
● Hands-on experience with cloud (AWS) development/hosting.
● Experience with Web services development (SOAP, REST)
● Strong in Object Oriented Programming, MVC, Design patterns and SOLID principles.
Skills Required:
- Node.js
- MongoDB
- Angular
- API optimization
- Micro Services
- Multi threading
- Socket.io
What we need:
• Experience in both Web + Mobile development
• Strong understanding of APIs & system design
• Ability to build end-to-end features
· Maintain version control and documentation using Git / GitHub.
Roles and Responsibilities
- Design and develop responsive web applications using React.js / Next.js.
- Build and maintain scalable RESTful APIs using Node.js and Express.js.
- Implement user authentication and authorization using JWT / OAuth2.
- Manage and optimize database structures using MongoDB or MySQL.
- Integrate front-end and back-end components seamlessly for smooth user experience.
- Collaborate with UI/UX designers and product teams to deliver high-quality features.
- Participate in Agile / Scrum sprints, daily stand-ups, and code reviews.
- Optimize applications for speed, performance, and security.
- Maintain version control and documentation using Git / GitHub.
Troubleshoot and debug production issues efficiently.
Job Location- Bangalore,
Candidates from Tamil Nadu willing to relocate to Bangalore can also apply.
About the Role
We are looking for a Full Stack Developer with hands-on experience in React and Node.js/NestJS to develop and maintain end-to-end web applications in a modern microservices environment.
Key Skills
- Strong knowledge of JavaScript & TypeScript
- Hands-on experience with React.js, Hooks & State Management
- Experience with Node.js, Express.js and/or NestJS
- Good understanding of REST APIs
- Working knowledge of PostgreSQL & MongoDB
- Experience with Git
- Basic understanding of AWS, Docker & Microservices will be an advantage
Responsibilities
- Develop responsive React-based front-end applications
- Build and integrate REST APIs using Node.js/NestJS
- Work with PostgreSQL and MongoDB databases
- Develop and maintain microservices
- Debug, test and optimize applications
- Participate in code reviews and team collaboration
- Support application deployment and monitoring on AWS
Preferred
AWS | Docker | CI/CD | Java/Spring Boot | Redis | Message Queues
Qualification: Bachelor's degree in CS/IT or equivalent practical experience.
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
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
Position: Full Stack Developer (React.js + Node.js)
Experience: 2–5 Years
Location: Mumbai – Chembur West (Onsite)
Job Summary
We are looking for a Full Stack Developer with strong hands-on experience in React.js and Node.js to build scalable, secure, and high-performance web applications. The ideal candidate should be comfortable owning features end-to-end, developing responsive UI, building REST APIs, integrating databases, and supporting production systems.
Key Responsibilities
- Build responsive UI using React.js, HTML5, CSS3, JavaScript (ES6+)
- Develop scalable backend services and RESTful APIs using Node.js (Express.js / NestJS)
- Work with MongoDB and MySQL (schema design, indexing, query optimization)
- Implement authentication & authorization using JWT , RBAC , Oauth
- Integrate third-party APIs, Webhooks
- Build real-time features using Socket.io / WebSockets
- Ensure performance, scalability, and security (validation, sanitization)
- Implement caching using Redis (if applicable) and optimize API response times
- Support API testing (Postman/Supertest)
- Maintain API documentation using Swagger / OpenAPI
- Debug and resolve defects, handle RCA, and support production troubleshooting with logs/monitoring
- Follow Git-based workflows, participate in code reviews, and collaborate with QA/product teams in Agile delivery
Mandatory Skills
- React.js, Node.js, JavaScript (ES6+)
- MongoDB (must), MySQL
- REST API development & integration
- Socket.io / WebSockets, Webhooks
- HTML5, CSS3
- Git
- Typescript, Express.js / NestJS
- jQuery / AJAX (basic / legacy support)
Good to Have
- Redis, Swagger/OpenAPI
- Docker, CI/CD (GitHub Actions/Jenkins)
- Cloud exposure (AWS/Azure/GCP)
Qualification
BE / BTech / MCA / MSc IT / BSc IT with 2–5 years relevant experience.
CTC: As per industry std.
Job Summary
We are looking for a skilled Backend Developer with strong Node.js experience to join our development team. The ideal candidate should have hands-on experience in building scalable, secure, and high-performance backend applications and APIs.
You will work closely with frontend developers, product managers, and other engineering teams to design, develop, test, and maintain backend services and applications.
Key Responsibilities
- Design, develop, and maintain scalable backend applications using Node.js.
- Build and maintain RESTful APIs and backend services.
- Write clean, reusable, maintainable, and efficient code.
- Work with databases such as MongoDB, PostgreSQL, MySQL, or similar.
- Integrate third-party APIs and external services.
- Implement authentication, authorization, and security best practices.
- Optimize application performance, scalability, and reliability.
- Identify and resolve bugs, performance issues, and production problems.
- Write unit and integration tests to ensure application quality.
- Collaborate with frontend developers to integrate APIs with web/mobile applications.
- Participate in code reviews and follow development best practices.
- Work with Git and standard CI/CD and deployment processes.
- Contribute to system design and technical discussions.
Required Skills
- 2–6 years of professional experience in backend development.
- Strong hands-on experience with Node.js.
- Good knowledge of JavaScript and/or TypeScript.
- Strong understanding of REST APIs, HTTP, JSON, and API design.
- Experience with Express.js, NestJS, or similar Node.js frameworks.
- Good understanding of relational or NoSQL databases such as PostgreSQL, MySQL, or MongoDB.
- Knowledge of SQL and database design.
- Experience with Git/GitHub/GitLab/Bitbucket.
- Understanding of authentication mechanisms such as JWT/OAuth.
- Strong problem-solving and debugging skills.
- Good understanding of data structures, algorithms, and backend architecture.
Good to Have
- Experience with TypeScript.
- Knowledge of AWS / Azure / GCP.
- Experience with Docker and Kubernetes.
- Knowledge of Redis, Kafka, RabbitMQ, or other caching/message queue technologies.
- Experience with microservices architecture.
- Familiarity with CI/CD pipelines.
Juntrax is a global integrated office management platform for SMEs.
**What we are looking for : **
* Someone who has led a team of developers in a product-centric company by providing technical direction for the design, development, testing, and release of a product.
* Designed scalable Applications
* Possesses hands-on experience building end to end systems
* Good architectural & product design skills
* Strong coding, data structures and algorithms background
* The ability to own end to end responsibility - right from requirement gathering to product release
* The ability to produce bug-free and production-grade code
* Engage with stakeholders and ensure the product is on target for timely development.
* Possess the following technical skills: Javascript,MeteorJs, NodeJS, MongoDB, ExpressJS, ReactJS, Elastic Search, AWS, ReactNative
* Must be highly motivated and be willing to take up the challenges with working in a start-up.
- Must have entrepreneurial skills.
**Main Responsibilities: **
Build & lead a team by example
* Develop a deep understanding office management product and startup ecosystem and execute to the release of the product
* Architect, design, and document processes and procedures for future releases.
* Should be able to help out in coding and performing code reviews with the team in MERN/Meteor Stack.**
**What we have to offer : **
* -Work with a performance-oriented team driven by product ownership
- Learn to design system for high accuracy, efficiency, and scalability
- Equity and Co-foundership will be offered
- Office Culture based on collaboration and desire to deliver the best product
AI Agent Frameworks, LangChain, LlamaIndex, OpenAI API,Zapier, HTML5, CSS3, JavaScript,bootstrap3.1,TypeScript, React.js, Next.js, Vue.js, Node.js, Python, PHP, WordPress, Headless CMS, DNS Management, SSL Configuration, Conversion Rate Optimization (CRO), A/B Testing, AWS, Google Cloud Platform (GCP), Cloudflare CDN, AWS S3, Core Web Vitals, Google Trends, Google Search Console, Ahrefs, SEMrush, Google Analytics 4 (GA4), Google Tag Manager (GTM), Meta WhatsApp Cloud API, Twilio, Webhooks, MSG91, REST APIs,claude,github,MYSQL
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Job Title : Node.js Developer
Experience : 5+ Years
Location : Gurgaon – Sector 43
Work Mode : 5 Days Work From Office (WFO)
Interview Mode : Direct Walk-in
Job Summary :
We are looking for an experienced Node.js Developer with 5+ years of hands-on experience in backend development and building scalable applications.
The ideal candidate should have strong problem-solving skills and experience working in a fast-paced product or service-based environment.
Key Responsibilities :
- Develop and maintain server-side applications using Node.js.
- Design and implement RESTful APIs and microservices.
- Work with databases like MongoDB / MySQL / PostgreSQL.
- Integrate third-party APIs and services.
- Ensure performance, security, and scalability of applications.
- Collaborate with frontend developers, QA, and DevOps teams.
- Write clean, reusable, and efficient code.
- Participate in code reviews and technical discussions.
Required Skills :
- Strong expertise in Node.js and JavaScript.
- Experience with Express.js or similar frameworks.
- Knowledge of Microservices architecture.
- Hands-on experience with MongoDB / SQL databases.
- Experience with Git and CI/CD processes.
- Good understanding of cloud platforms (AWS preferred).
- Strong debugging and optimization skills.
Preferred Skills :
- Experience with Docker / Kubernetes.
- Knowledge of Redis, Kafka, or message queues.
- Understanding of Agile methodologies.






