Senior Technology Lead (Full Stack - React-Native, MERN) at Quizkart Technology Private Limited · Delhi, Gurugram, Noida, Ghaziabad, Faridabad · 6 - 8 years · ₹12L - ₹20L / yr (ESOP available) · Raised funding · Posted 27 Jun 2022

Senior Technology Lead (Full Stack - React-Native, MERN)
- Expert in React Native is MUST
- Expertise in design and development of Full Stack applications using one or more JS frameworks like Angular, and Node JS, and developing apps using React Native
- Expert in Angular, React Native, NodeJS, Mongo, Postgres
- Ensuring responsiveness of applications.
- Designing and developing APIs, integrating with 3rd Party API for smooth Transaction and working.
- Experience on AWS Code Commit and Pipeline
- Hands on experience in Integration Node.jst with AWS (S3, CloudFront, ELB, EC2 etc)
- Extensive experience in architecting tech platforms.
- Integrating user-facing elements developed by front-end developers with server side logic.
- Writing reusable, testable, and efficient code.
- Design and implementation of low-latency, high-availability, and performing applications.
- Implementing security and data protection.
- Integrating data storage solutions.
- Proficiency in JavaScript with object oriented and functional concepts.
- Good knowledge of Node.js with the expertise in working with Express framework.
- Hands-on experience in integrating Node.js with MongoDB, PostgreSQL, and creating the REST APIs using Node.js.
- Good understanding the nature of asynchronous programming and its quirks and workarounds.
- User authentication and authorization between multiple systems, servers, and environments.
- Understanding fundamental design principles behind a scalable application.
- Understanding differences between multiple delivery platforms, like mobile vs. desktop, and optimising output to match the specific platform.
- Creating database schemas that represent and support business processes.
- Implementing automated testing platforms and unit tests.
- Proficient understanding of code versioning tools, such as Git, SVN etc
- Experience within the eCommerce / fantasy quiz platform would be an advantage.
- Design, Develop, Test, Deploy, Maintain, and Improve software and new user-facing features.
- Nodejs
- React Native
- MongoDB (DynamoDB)
- SQL databases ( PostgreSQL, MySql Server)
- MERN/MEAN Stack
We are India's first Fantasy Ecommerce platform that enables a new method of shopping and saving by playing fun based quizzes for everyone.

About Quizkart Technology Private Limited
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Technology Stack: Next.js, Express.js, PostgresSQL, GCP
Location: Ahmedabad
About Medflix - empowering healthcare professionals for better care
Medflix (www.medflix.app/app) is a platform where healthcare professionals (doctors, medical students and more) stay updated through live talks, Q&As, support material and more. Through the platform we believe that these professionals can be empowered to deliver better care to patients (like our families) throughout the globe.
In its current (and evolving) form, it is a live learning and engagement platform seeing tremendous week-on-week growth through stellar speakers and a very active early community. The product is in the growth stages and you will be playing a key role in steering the tech to create a scalable and lovable product experience.
We are backed by startup, VC and PE veterans including Kunal Shah (CEO, Cred), Raghunandan G (Zolve, ex-TFS), Avnish Mehra (Everstone) and more.
Medflix is a platform by PlexusMD (www.plexusmd.com/app), a network trusted and loved (4.4 stars on Playstore and 4.4 on Appstore) by more than 3 lakh doctors in India and working closely with leading healthcare providers and companies like AIIMS, Jaslok, Hinduja, Apollo, HCG, Elsevier, Association of Physicians of India, Indian Association of Cardio-thoracic surgeons, Society of Nuclear Medicine, Govt of Gujarat (HFW Dept), Govt of Haryana (SIFHW), McKinsey and company, Takeda, Mankind and others.
About the Role
Tech stack (expertise in all is not required, experience in some will be sufficient):
- React / Next.js (required, at least 1 year of experience)
- Express.js (required, at least 1 year of experience)
- Familiarity with cloud services (gcp / azure / aws)
- PostgreSQL (or expertise in any relational database)
- Redis
- Docker/Kubernetes deployment (good to have)
For this role we are looking for engineers with an entrepreneurial mindset, an understanding of how startups operate and who like to get their hands dirty when unknown things come their way. You will work closely with the product team to prioritise and ship features with a predictable cadence.
As this role is full-stack, you need to have a good understanding of frontend design and be obsessed with responsiveness and pixel-perfect behaviour. On the backend side, an OCD for efficiency and optimisation is a required personality trait.
Demonstrated history of solving hard problems (frontend/backend or both) is a great-to- have.
Benefits and growth
While we ensure competitive compensation (plus ESOP options for deserving candidates), at Medflix, you will also have a strong say in how final solutions look. You will get the opportunity to learn to steer an accelerating rocket ship.
College credentials, background or years of experience are no bar for growth inside the company for enthusiasts who believe in our mission and demonstrate that passion to create a product that healthcare workers love.
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
Experience and Required Skill Sets:
1 Solid experience in software design and development using Microsoft ASP.NET framework, C#, Visual Studio, and in writing clean, readable, and easily maintainable code
2 5+ years of experience in WCF, WPF, VB.NET, SQL Server, JQuery, Angular 10 and above.
3 5+ years of experience in developing highly scalable REST/Web APIs
4 5+ years of experience in developing highly efficient SQL/NoSQL Queries
5 5+ years of experience in Relational and Document databases
6 Strong understanding of object-oriented programming and possess strong fundamental design principles for building a scalable application.
7 Experience in using the MVC framework, working knowledge in APIs, and Service Oriented Architecture
8 Strong understanding of object-oriented programming and possess strong fundamental design principles for building a scalable application.
9 Experience in Angular version 10 and above is required
10 Expert in SQL programming & Database Design (Stored procedure, Function, Trigger, Constraints, Replication)
11 Strong ability in HTML and JavaScript (AJAX, DOM)
12 Development experience with data integration technologies including REST, SOAP, JSON, XML
13 Expertise in programming and usage of any unit testing framework. Expertise in integration testing and continuous integration.
14 Experience working in a DevOps environment will be an added advantage.
Responsibilities:
• Ability to create complex, enterprise-transforming applications that meet and exceed client expectations.
• Responsible for the bottom line. Strong project management abilities. Ability to encourage the team to stick to timelines.
• Follow best-in-class coding practices and review the solutions vis-à-vis the requirements and technical specifications.
• Should demonstrate strong client interfacing capabilities like emails and calls with clients in the US/UK
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.
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.
* 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.
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.
We are looking for a Senior Full-Stack Developer with strong experience in modern web and mobile application development.
Requirements:
* 4+ years of full-stack development experience
* Strong Node.js, TypeScript and React.js
* Hands-on React Native experience
* Strong PostgreSQL, Redis and REST API knowledge
* Experience with WebSockets and real-time systems
* Good knowledge of AWS, Docker and CI/CD
* Experience with third-party API integrations
* Strong understanding of scalable architecture and application security
* Experience with GPS/geolocation or real-time applications is a plus
* Strong problem-solving and debugging skills
* Ability to work independently and deliver within tight timelines
* Experience taking applications from development to production
Preferred: Experience in taxi, logistics, delivery, marketplace or booking platforms.
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.














