Tech Lead - (Ruby on Rails)

Job Title: Full-Stack MERN Developer (5–8 Years Experience)

Location: Borivali, Mumbai (Onsite)

Experience: 6–8 Years

Joining: Immediate Joiners

Employment Type: Full-time

Job Overview

We are looking for an experienced Full-Stack MERN Developer to join our engineering team in Borivali, Mumbai. The ideal candidate should have strong hands-on experience building scalable web applications using React, Node.js, Express, and MongoDB, with a solid understanding of REST APIs, microservices architecture, performance optimization, and cloud infrastructure.

You will work on consumer-facing applications, handle large datasets, and contribute to building reliable, high-performance systems.

Key Responsibilities

• Design, develop, and maintain full-stack web applications using MERN stack
• Build scalable and secure RESTful APIs and backend services using Node.js & Express
• Develop reusable and high-performance React components with proper state management
• Implement microservices-based architecture and inter-service communication
• Optimize application performance at both frontend and backend levels
• Work with MongoDB for data modeling, indexing, and performance tuning
• Handle large datasets efficiently and ensure system reliability
• Implement logging, tracing, and monitoring for production-ready applications
• Collaborate with product, frontend, backend, and DevOps teams
• Write clean, maintainable, and well-documented code

Technical Requirements

Backend

• Strong hands-on experience with Node.js & Express.js
• Expertise in building REST APIs and backend business logic
• Strong understanding of async programming (Callbacks, Promises, Async/Await)
• Experience with microservices architecture
• Hands-on experience with MongoDB (Expert level)
• Working knowledge of PostgreSQL / MySQL
• Experience with Kafka or other message queue systems
• Familiarity with Bull / job schedulers

Frontend

• Strong experience with React.js
• Hands-on experience with state management (Redux, Context API, or similar)
• Good understanding of HTML, CSS, AJAX
• Experience with performance optimization techniques in React

Infrastructure & Cloud

• Experience with Docker and Kubernetes (K8s)
• Hands-on exposure to AWS services such as EC2, S3, ELB, AutoScaling, CloudFront
• Understanding of CI/CD pipelines is a plus

Core Computer Science

• Good understanding of Data Structures & Algorithms
• Solid knowledge of Operating Systems fundamentals

Good to Have

• Experience with Redis for caching
• Exposure to Vue.js
• Experience working on consumer-facing web or app products
• Strong debugging and problem-solving skills
• Familiarity with application monitoring tools (logs, metrics, tracing)

What We’re Looking For

• Strong problem-solving mindset and ownership attitude
• Ability to learn new tools and technologies quickly
• Comfortable working in fast-paced, production-driven environments
• Immediate or short-notice joiners preferred

• Full Stack Developer with a strong technical foundation in Angular, Java,Spring MVC, JPA. Spring Boot, REST API, Database, and CI/CD pipelines, Playwright
• Design, develop, and maintain full-stack applications using Angular (front-end) and Java Spring Boot (back-end). * At least 3 years of Hand-on Java EE and Core Java experience with strong leadership qualities.
• Experience with Web Service development, REST and Services Oriented Architecture.
• Expertise in Object Oriented Design, Design patterns, Architecture and Application Integration.
• Working knowledge of Databases including Design, SQL proficiency.
• Strong experience with frameworks used for development and automated testing like SpringBoot, Junit, BDD etc.
• Experience with Unix/Linux Operating System and Basic Linux Commands.
• Strong development skills with ability to understand technical design and translate the same into workable solution.
• Basic knowledge of Python/Python scripting
• Build, deploy, and monitor applications using CI/CD pipelines.
• Experience with agile development methodology.
• Good to Have Elastic Index Database, MongoDB - No SQL Database Docker Deployments, Cloud Deployments 

At Wendor, we’re transforming the vending industry in India with our in-house designed, tech-enabled smart vending machines — already live in 70+ cities and expanding rapidly. We’re a focused, fast-growing team where everyone takes ownership and moves with purpose.

We are looking for a Senior Software Engineer to take end-to-end ownership of the software powering Wendor’s smart vending machines. In this role, you will architect and develop robust full-stack applications, integrate low-level systems on Linux, and lead a team of engineers to build scalable, real-time software solutions.

Your work will directly impact how users interact with our machines across 70+ cities. This is a hands-on role where you’ll collaborate with cross-functional teams, solve complex technical challenges, and contribute to innovations that push the boundaries of smart retail automation.

Key Responsibility:

● Develop and maintain full-stack applications (using technologies Node.js, React) to support Wendor's smart vending ecosystem, ensuring seamless frontend and backend functionality.

● Work on low-level integrations with vending hardware, optimizing performance and stability on Linux-based systems.

● Build and manage scalable backend services and RESTful APIs to handle real-time data, payments, and machine operations.

● Lead and mentor a team of 3–4 software engineers, conducting code reviews, guiding technical decisions, and ensuring timely deliveries.

● Write efficient SQL queries and manage data flow between services and databases to ensure reliability and responsiveness of the platform. ● Ideate, prototype, and implement new features, tools, or automations to improve product performance and internal processes.

● Collaborate with cross-functional teams including hardware, product, design, and operations to deliver integrated solutions.

● Ensure system reliability, performance, and uptime for software running on live vending machines across India.

● Maintain code quality through unit tests, integration tests, and E2E testing practices, following modern software engineering standards.

● Stay updated with emerging tech trends to help Wendor innovate faster and smarter.

Requirements:

● Proven experience as a Senior Software Engineer or similar role.

● Strong customer-centric mindset with a commitment to product excellence.

● Expertise in full-stack development (frontend + backend technologies).

● Ability to write clean, maintainable, and well-documented code.

● Passion for innovation, scalability, and problem-solving.

● Location- Gurugram(On-site).

We are seeking a highly skilled and experienced MERN (MongoDB, Express.js, React, Node.js) Stack Developer to join our dynamic development team. As a MERN Stack Developer, you will be responsible for designing, developing, and maintaining scalable web applications using the MERN stack framework.

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Expertise in backend programming with Node.js and MongoDB.
• Experience with React.js and redux.
• Material UI and 3rd party libraries.
• Experience with clean code writing practices like avoiding callback hell like promises, async.
• Thorough understanding of Node.js and its core principles.
• Experience with popular React.js workflows (such as Flux or Redux).
• Familiarity with newer specifications of ECMAScript.
• Experience with data structure libraries (e.g., Immutable.js).
• Familiarity with RESTful APIs.
• Knowledge of modern authorization mechanisms, such as JSON Web Token.
• Familiarity with modern front-end builds pipelines and tools.
• A knack for benchmarking and optimization.
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial).

Responsibilities:

• Build Node.js APIs using microservices.
• Rewriting backend code with microservices architecture & Unit tests.
• Developing new user-facing features using React.js.
• Building reusable components and front-end libraries for future use.
• Translating designs and wireframes into high-quality code.
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
• 
  

If you are a passionate MERN Stack Developer looking for an exciting opportunity to work on challenging projects and be part of a talented team, we would love to hear from you. Please submit your application, including your resume and portfolio, highlighting your relevant experience and projects.

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 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. Too familiar with Agile methodologies.

Responsibilities

• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation

Requirements

• Proven experience as a Full Stack Developer or similar role
• Experience developing desktop and mobile applications
• Familiarity with common stacks like LAMP Stack and Mean Stack...
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages (e.g. PHP, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) 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

Job Description

• ​Be able to drive a team of around 4 developers
• Should be able to effectively lead from the front, integrating developers, analysts and QA
• Should be able to pair, and effectively mentor junior developers
• The ability to think innovatively and turn ambiguous problem spaces into clear solutions
• Be an inspiration for the team and a trusted partner to our customers

Requirements

• Familiar with PHP or Ruby or NodeJS. Strong experience in Laravel and/or ReactJS a plus
• Familiarity with the entire development -> prod flow a strong plus (our dev owns the DevOps)
• Familiarity with performance tuning a web stack a strong plus
• Comfortable working in an Agile highly dynamic start-up environment
• Demonstrate leadership skill and be accustomed to driving results in a collaborative, cross-functional environment