React js Developer

🚀Urgent Hiring : MERN Stack Developer

Location : Gurgaon

Work Mode : Work From Office (5 Days a Week)

Experience : 3 to 6 Years

Joining : Immediate Joiners Preferred

Job Description :

We are looking for a skilled and enthusiastic MERN Stack Developer to join our growing team in Gurgaon.

The ideal candidate will be responsible for developing robust web applications using MongoDB, Express.js, React.js, and Node.js.

You will work on both front-end and back-end components, ensuring high performance and responsiveness.

Key Responsibilities :

• Design, develop, and maintain scalable web applications using the MERN stack.
• Collaborate with UI/UX designers and backend developers to implement features.
• Write clean, modular, and reusable code.
• Integrate RESTful APIs and third-party services.
• Optimize applications for speed and scalability.
• Participate in code reviews, testing, and bug fixing.
• Manage version control using Git.

Required Skills :

• Strong proficiency in MongoDB, Express.js, React.js, and Node.js.
• Good understanding of JavaScript ES6+, HTML5, CSS3.
• Experience with Redux, React Hooks, and modern React ecosystem.
• Familiarity with RESTful APIs and JSON data exchange.
• Knowledge of Agile/Scrum methodologies.
• Experience with Git and version control tools.

Good to Have:

• Knowledge of TypeScript and Next.js.
• Experience with CI/CD pipelines and cloud services (AWS/Azure).
• Familiarity with unit testing frameworks like Jest or Mocha.

StarApps Studio is a product-driven SaaS company building Shopify apps that power thousands of online stores. We’ve developed 6 highly-rated Shopify apps (averaging 4.9★) used by 30,000+ Shopify merchants worldwide, including over 1,000 Shopify Plus stores. In just a few years, our bootstrapped team grew from $5.5M to $10M in Annual Recurring Revenue (ARR) by obsessing over quality and merchant success. We’re a tight-knit, 20-person team based in Baner, Pune, on a mission to help e-commerce brands create world-class shopping experiences.

Role Overview

We are looking for a Full Stack Developer who will own features end-to-end with an emphasis on backend excellence. In this role, you will design and optimize complex data models and API architectures in Ruby on Rails, implement robust background job queues (e.g. delayed_job) for heavy workloads, and perform rigorous performance tuning to ensure our systems scale. On the frontend, you'll build and integrate React components to deliver complete, user-friendly features. This is a role for someone who loves tackling deep technical challenges in the backend while also crafting intuitive user interfaces – an opportunity to leverage your backend expertise while driving full-stack product ownership.

Key Responsibilities

• Architect & Optimize Backend: Design scalable database schemas and efficient data models. Develop high-performance RESTful APIs and services in Ruby on Rails, ensuring clean, maintainable code and great performance.
• Backend API Development: Design, implement, and maintain robust backend services and RESTful APIs in Ruby on Rails to support new features and internal tools.
• End-to-End Performance Tuning: Optimize application performance across the stack – from minimizing frontend load times to improving backend query efficiency – for our high-traffic, data-intensive apps.
• Collaboration & Agile Delivery: Work closely with designers, product managers, and QA to translate requirements into technical solutions. Participate in sprint planning, code reviews, and daily deployments to ship features continuously and reliably.
• Quality & Maintenance: Write clean, maintainable code with appropriate test coverage (unit and integration tests) to ensure reliability. Monitor, debug, and resolve issues in production, and continually refactor and improve existing code for stability and performance

What We’re Looking For (Requirements)

• 4–8 Years Experience: Proven experience as a software developer in a product company (experience in e-commerce or SaaS is highly preferred). You have built real products used by actual customers at scale.
• Ruby on Rails Expertise: Strong command of Ruby on Rails. Experience designing RESTful APIs, working with MVC architecture, and using Rails best practices. You should understand how to structure large Rails applications for maintainability.
• Backend Proficiency: Comfortable building server-side applications and APIs with Ruby on Rails. You can implement business logic, integrate with databases, and create RESTful endpoints (bonus if you’ve worked with GraphQL or other backend frameworks).
• Database Skills: Proficiency with PostgreSQL (or similar RDBMS). Capable of writing complex SQL queries, optimizing queries/indexes, and designing efficient relational schemas. Familiarity with Redis or caching strategies is a plus.
• Front-End Proficiency: Comfortable building user interfaces with React and modern JavaScript/TypeScript. Able to implement frontend components that consume APIs and provide a smooth user experience.
• System Design & Quality: Solid understanding of web application architecture, performance tuning, and scalability concerns. Experience with profiling, benchmarking, and optimizing web applications. Commitment to writing clean, maintainable code with proper tests.
• Product Mindset: You care about the why behind the features. You are comfortable digging into requirements, questioning assumptions, and ensuring that we build solutions that truly solve merchant problems.
• Adaptability & Collaboration: Excellent problem-solving skills, communication, and ability to work in a fast-paced, collaborative environment. You are a self-starter who can take ownership of tasks and drive them to completion, but also know when to ask for help.

Tech Stack

• Frontend: React, TypeScript/JavaScript, HTML5, CSS3 (Tailwind/Bootstrap), modern build tools (Webpack, Babel).
• Backend: Ruby on Rails (REST APIs, background jobs), some services in Python.
• Database: PostgreSQL.
• Cloud & DevOps: Amazon Web Services (EC2, S3, RDS, CloudFront), Docker, CI/CD for daily deployments.
• Tools: Git (GitHub), Agile issue tracking (JIRA/Trello), and a keen use of automated testing.

(Don’t worry if you aren’t familiar with every item – we value willingness to learn. This is our current stack, and we continually adopt new technologies that improve our products.)

Why Join Us

• High Impact & Ownership: Your work will directly enhance the shopping experience of 50M+ shoppers daily. At StarApps, developers deploy code daily and see the immediate impact on thousands of merchants – you’ll own projects end-to-end and build features that matter.
• Fast-Growing, Profitable Startup: Join a bootstrapped, profitable company on an exciting growth trajectory (from $4M to $10M ARR). There’s no bureaucracy here – just a passionate team obsessed with product quality and merchant happiness. You’ll be part of our core team as we scale, with ample opportunities to grow into leadership roles.
• Cutting-Edge Tech & Challenges: Work with modern technologies (React, Rails, AWS) on performance-intensive applications. Tackle complex challenges in scaling, optimization, and UX for a global user base – continuously sharpen your skills in a supportive, learning-focused environment.
• Collaborative Culture: We are a small 25-person team that operates like a close-knit family. You’ll work side by side with experienced founders and a talented team that values innovation, humility, and continuous improvement. Our culture is open, empathetic, and growth-oriented – every voice is heard, and every team member plays a crucial role in our success.

Growth & Benefits: We invest in our team’s growth. Expect a competitive salary, performance bonuses, and whatever tools you need to do your best work. We sponsor professional development (courses, conferences, books) and encourage knowledge-sharing. You’ll enjoy a flexible leave policy, team off-sites, and the excitement of building a global product from our new office in Baner, Pune.

Job Summary

Hitasoft, a web and mobile application development company is looking for a Full Stack Developer(MERN) 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.

The job location is Madurai.

Responsibilities

Binding of UI elements to JavaScript object models

Creating RESTful services with Node.js

MERN stack developer must have proven experience in front & back-end development.

Work in a cross-functional team to deliver a complete user experience.

Developer must expertise into MongoDB, Express, Node.js, & React.

Create Unit and Integration tests to ensure the quality of code.

MERN full stack developer must have the ability to wear many hats and learn new technologies quickly.

Understanding & proficiency in REST APIs.

MERN stack developer should know Git Repository and Jira.

Integration of data storage solutions [RDBMS, NoSQL DB].

Work with development teams and product managers to ideate software solutions.

Develop and manage well-functioning databases and applications.

Test software to ensure responsiveness and efficiency.

Create security and data protection settings.

Requirements

MERN Full stack eCommerce developer is responsible for writing reusable, testable, and efficient code.

Design and implementation of low-latency, high-availability, and performant applications.

Implementation of security and data protection.

Understanding of performance testing and optimization techniques.

MERN software developers must have good communication & interpersonal skills.

Ability to work independently with minimum supervision.

1. 3-5 years of experience in UI development on Angular.
2. Hands-on experience of HTML 5, CSS, JavaScript, and Typescript.
3. Hands-on experience in Angular 10 or above version.
4. Strong knowledge of REST API.
5. Solid understanding of Object-Oriented programming and a Java background.
6. Ability to work independently and should have an excellent interpersonal and communication skills.
7. Should have strong Angular JS knowledge.
8. Experience in backend testing framework.
9. Good communication skill & ability to work with multiple stakeholders.
10. Node and MongoDB Experience will be an add on

Soft Skills:
1. Excellent organizational and troubleshooting skills with attention to detail to consistency minimize errors.
2. Professional, reliable, and possessing a strong work ethics.
3. Excellent communication skills.

JOB DESCRIPTION

Overview - We always put our users first. We start by looking at things from the user’s perspective and end by evaluating how the solution has impacted the user.  We are looking for People who are continuously adapting to new technologies and excited to work on products that influence millions of people every day. The Android and iOS mobile applications are used by millions of people around the world and are some of India’s best known and most loved applications and we’re looking for someone to lead the engineering teams that build these apps.

Role - We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full Stack Developer will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail. You will strike a balance between the consumers’ intent and the business’s needs.

What you will do in this role

• Developing front end website architecture.
• Translate requirements and mock-ups into fully functional features by working closely with business and product owners, creative designers and back-end developers.
• Creating servers and databases for functionality.
• Review requirements, design specifications, propose solutions and implementation.
• Work with team leads on the requirements and create estimates against those requirements.
• Deliver projects on time in an agile and continuous development environment.
• Writing tests in a client-side test framework such as Jest, Jasmine, etc.
• Designing and developing APIs.
• Monitor systems to ensure they meet both user needs and business goal.

What you should have

• 2-5 years of hands-on experience in software development and system administration.
•  Experience in Micro services, Serverless applications, Container-based applications.
•  Strong Experience on AWS cloud (Lambda, S3, Kinesis, SQS, SNS, ECS, Dynamo DB).
•  Good understanding of Devops, Apache Kafka.
•  Familiarity with JavaScript frameworks such as ReactJS.
•  Proficiency with server side languages such as NodeJS, Python and PHP.
•  Familiarity with database technology such as MySQL, Mongo DB and Dynamo DB.
•  Familiarity with Logging & Monitoring tools like Kibana, NewRelic, DataDog
• Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
• Experience with unit testing & Test Driven Development (TDD) and CI/CD.

• BE (Comp/IT), ME (Comp/IT), MCA, M.Tech, B.Tech.

Synapsica is a growth stage HealthTech startup founded by alumni from IIT Kharagpur, AIIMS New Delhi, and IIM Ahmedabad. We believe healthcare needs to be transparent and objective, while being affordable. Every patient has the right to know exactly what is happening in their bodies and they don’t have to rely on cryptic 2 liners given to them as diagnosis.

Towards this aim, we are building an artificial intelligence enabled cloud based platform to analyze medical images and create 2.0 of advanced radiologist reporting.

We are backed by Y Combinator and other investors from India, US and Japan. We are proud to have GE, AIIMS, the Spinal Kinetics as our partners.

Join us, if you find this as exciting as we do!

Description:

We are looking for a skilled computer programmer who is comfortable with both front and back end programming. Hands-on with UI and server-side is highly desirable.

You will get hands-on experience in the latest technologies and skills including product design and architecture. This role is ideal for you if you have a background in Full Stack development and are looking for the next level of career growth in a fast paced, learning based and merit driven work environment.

Responsibilities:
- Work alongwith teams and product managers to ideate software solutions. 
- Design, build and develop front end application features.
- Design, build and develop microservices and backend server applications.
- Designing and scaling databases and servers.
- Ensuring analysis, efficiency, responsiveness and cross-platform compatibility of applications through captured  metrics, testing frameworks, and debugging methodologies.
- Owning and delivering end-to-end products, features, enhancements.
- Hands-on coding and development.
- Technical documentation through all stages of development

Requirements:
- Degree in Computer Science or related discipline with 6-10 years of experience.
- Hands on with Reactjs or similar framework/library.
- Proficiency with server side languages such as Nodejs, Python.
- Proficiency with at least one no-sql database such as MongoDB.
- Good understanding of CI/CD processes.
- Excellent verbal communication skills.
- Good problem solving skills.
- Attention to detail.
- Very high sense of ownership.
- Deep interest and passion for technology

• Have the ability to translate UI/UX design wireframes to scalable code.
• Experience in developing pixel perfect frontend software, with deep experience in React.js
• Design, develop and maintain our user-facing products.
• Creating Restful APIs with Node.js
• Creating Decoupling architecture and microservices.
• Creating database schemas for products.
• Understanding of session management in a distributed server environment.
• Optimization of the application for maximum speed and scalability.
• Write well architectured code while adhering to best practices.
• Thoroughly understand the requirements and deliver features on time.

• 1-5 years of experience with React (redux, hooks).
• 1-5 years experience with JavaScript (ES6+, modern browser APIs, async/await) or Typescript.
• 1-5 years experience with HTML/CSS & responsive websites.
• 1-5 years experience with NodeJS & MongoDB (NoSQL).

• Join an early team of founders - be a part of the founding team.
• Get first-hand startup experience and grab the opportunity to grow with us as we grow.
• Full remote work.
• Attractive base salary.

Your Key Responsibilities

You will build robust, secure and scalable micro-services

• You will be responsible to implement RESTful service
• You will take ownership to build scalable, reliable and performant code that complies with our internal code guidelines
• Take part in code reviews and architecture development
• You will influence how we build individual features and products, and bring in best practices and patterns that can be used for engineering lifecycle
• You will be driving architecture and design discussions and will be responsible to run and maintain good infrastructure

What to Bring

B.Tech/ B.E. in Computer Science from a reputed college or related technical discipline with 5-8 years of experience in software development

• Knowledge for data structure and an eye for architecture
• Familiar with Git Architecture
• Experience with reactive programming
• Experience in building RESTful APIs with monitoring, fault tolerance and metrics
• Exposure to relational and NoSQL databases (MongoDB, Redis)
• Exposure to server-side services using ElasticSearch and ESB - Camel, ActiveMQ
• Experience in MEAN stack development
• Strong experience with AWS Stack