Fullstack Developer

About the Role

We are hiring an experienced MERN Stack Developer who can independently build and scale full-stack applications from scratch. The ideal candidate must have strong skills in TypeScript, React.js, Node.js, Redux, and REST APIs, along with a solid understanding of microservices architecture, mobile API integrations, and responsive design.

Experience with LLMs, RAG architecture, Kafka, Redis, webhooks, and database systems like PostgreSQL, MySQL, and MongoDB is essential. You’ll be working on scalable systems, enterprise-grade platforms, and AI-integrated products.

Key Responsibilities

• Develop and maintain full-stack web applications using React.js (with TypeScript) and Node.js (Express/NestJS)
• Build and document robust RESTful APIs and mobile-ready endpoints
• Implement and consume webhooks for third-party integrations and internal event-based workflows
• Ensure responsive design principles across devices and screen sizes
• Integrate with mobile applications via secure and scalable APIs
• Work with databases including PostgreSQL, MySQL, and MongoDB
• Integrate Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) pipelines
• Build and deploy microservices architecture using Kafka, Redis, Docker, etc.
• Manage application state using Redux or Redux Toolkit
• Write test cases using Mocha, Chai, Jest, or similar frameworks
• Participate in system design, architecture discussions, and scalability planning
• Follow Agile practices, perform code reviews, and contribute to CI/CD pipelines
• Collaborate with cross-functional teams including UI/UX, DevOps, QA, and Product Management

Required Skills & Experience

• Minimum 4 years of hands-on experience with the MERN stack
• Strong proficiency in TypeScript, React.js, Node.js, and Redux
• Proven experience in building and consuming REST APIs and webhooks
• Deep knowledge of responsive UI/UX development
• Hands-on experience with mobile-first API design and integrations
• Strong knowledge of PostgreSQL, MySQL, and MongoDB
• Experience with Kafka, Redis, Docker, and microservices
• Exposure to LLM, GPT, RAG, or similar AI models
• Solid understanding of software architecture and ability to build systems from the ground up
• Working knowledge of API security, JWT, OAuth, and rate-limiting
• Familiar with test-driven development and QA practices
• Familiarity with Git, version control, and collaborative workflows good to Have
• Experience with GraphQL and gRPC
• Experience in building SaaS or AI-integrated platforms
• Familiarity with ElasticSearch or RabbitMQ
• Experience with AWS, GCP, or Azure
• Understanding of serverless and event-driven architectures
• 
  

Benefits

• Competitive compensation with performance-based hikes
• Flexible remote or hybrid work options
• Opportunity to work on cutting-edge technologies including AI and scalable SaaS platforms
• Strong leadership and learning-driven environment
• Learning budget for courses, certifications, and conferences

Role: .NET Developer with React.js

3+ years in .NET/C# development (ASP.NET, Web API, MVC or Core)

Expertise in React.js (Redux, Hooks, component design)

Responsibilities:

• Work with product managers to find solutions to critical problems, face internal customers, and create requirements.
• Triage and fix critical issues that arise in the field that affect our core product.
• Manage git repositories, pull requests, and review code.
• Communicate properly & promptly with all stakeholders.
• Build a proof-of-concept for new products from scratch.
• Optimize, clean up, and comment on the existing codebase.

Requirements:

• Must have 5-8 years of hands-on engineering experience.
• Must be an expert in JavaScript/Typescript with ES6+ features, Node.js, ReactJS, and Redux
• Must be an expert in HTML5 CSS3 SASS, and Webpack.
• You are proficient with RESTful API design and implementation using Node.js.0
• Proficiency in relational (MySQL, Cloud Spanner etc. ) and non-relational (MongoDB, Google Cloud Firestore etc. ) databases.
• Must be an expert in data structure and creating highly optimized algorithms.
• Should have a working knowledge of GCP services like App Engine, CloudSQL, Compute Engine etc.
• Should have a working understanding of microservices patterns, serverless design, and event-based architecture.
• Willingness to learn new programming languages, frameworks, and paradigms.

Full Stack Developer Job Description

Position: Full Stack Developer

Department: Technology/Engineering

Location: Pune

Type: Full Time

Job Overview:

As a Full Stack Developer at Invvy Consultancy & IT Solutions, you will be responsible for both front-end and back-end development, playing a crucial role in designing and implementing user-centric web applications. You will collaborate with cross-functional teams including designers, product managers, and other developers to create seamless, intuitive, and high-performance digital solutions.

Responsibilities:

Front-End Development:

Develop visually appealing and user-friendly front-end interfaces using modern web technologies such as C# Coding, HTML5, CSS3, and JavaScript frameworks (e.g., React, Angular, Vue.js).

Collaborate with UX/UI designers to ensure the best user experience and responsive design across various devices and platforms.

Implement interactive features, animations, and dynamic content to enhance user engagement.

Optimize application performance for speed and scalability.

Back-End Development:

Design, develop, and maintain the back-end architecture using server-side technologies (e.g., Node.js, Python, Ruby on Rails, Java, .NET).

Create and manage databases, including data modeling, querying, and optimization.

Implement APIs and web services to facilitate seamless communication between front-end and back-end systems.

Ensure security and data protection by implementing proper authentication, authorization, and encryption measures.

Collaborate with DevOps teams to deploy and manage applications in cloud environments (e.g., AWS, Azure, Google Cloud).

Qualifications:

Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).

Proven experience as a Full Stack Developer or similar role.

Proficiency in front-end development technologies like HTML5, CSS3, JavaScript, and popular frameworks (React, Angular, Vue.js, etc.).

Strong experience with back-end programming languages and frameworks (Node.js, Python, Ruby on Rails, Java, .NET, etc.).

Familiarity with database systems (SQL and NoSQL) and their integration with web applications.

Knowledge of web security best practices and application performance optimization.

Task:

• Design, implement and maintain Java application phases
• To take part in software and architectural development activities
• Conduct software analysis, programming, testing and debugging
• Identifying production and non-production application issues
• Transforming requirements into stipulations
• Develop, test, implement and maintain application software
• Recommend changes to improve established Java application processes
• Develop technical designs for application development
• Develop application code for Java programs

We wish:

• Minimum 3 years of experience with excellent Java development skills
• Demonstrable hands-on experience in delivering solutions in a JavaEE 6 environment
• Open-source frameworks and standards Hibernate, Spring JDBC
• Hands-on experience with tools such as Ant, Eclipse, Maven, SVN, SoapUI, JIRA, Bamboo
• WS concepts and protocols: WSDL, REST, SOAP, JMS, XSLT, XML Schema
• Experienced with one or more open-source ESB products (JBOSS FUSE ESB, Apache Camel, Apache service mix) and/or message-oriented middleware and Active MQ, JMS
• Strong Java unit test skills
• Good experience in design patterns & design principles
• Experience with Webservices, PLSQL and SQL (Oracle 10g or above)
• Experience in Oops development with Core Java
• Desirable: Experience with:
  • Elastic Search, Smooks, Lucene, Jasper, Report
  • Domain-driven design
  • Experience with NoSQL technologies: Casandra, Mongo DB
  • Experience with agile development practices (Eg Scrum) and continuous integration environment
  • A J2EE application and web containers such as GlassFish, Jetty, Tomcat
  • CMMi-5 level process experience advantage

We Offer:

• Freedom to realize your ideas & individual career & development opportunities.
• A motivating work environment, flat hierarchical structure, numerous company events which cannot be forgotten and fun at the workplace with flexibilities.
• Professional challenges and career development opportunities.

Job Description: Full Stack Developer – RattanIndia Technologies Private Limited

Based at: New Delhi

Overview:

Required Full Stack developer with 3 to 6 years of experience with competencies in development of web applications in financial services domain on salesforce development platform and shall be responsible for requirement analysis, design, coding, testing and implementation of web applications.

Key Accountabilities:

• Working closely with business teams on the analysis to understand the requirements.
• Shall be responsible for designing, coding, testing and implementation of web application.
• Will be responsible for system design and application development of web applications.
• Work closely with the product managers and other team members to build features, functionality, and application.
• Design and implementation of low-latency, high-availability, and high performance applications.
• Implementation of security and data protection.
• Demonstrate creativity and sound analytical skills in identifying effective approaches to develop solutions independently.
• Deliver features with high quality, on-time as per project plans and delivery commitments.
• Delivering status updates to the management and stakeholders regularly.
• Demonstrate creativity and sound analytical skills in identifying effective approaches to develop solutions independently.

Academic Qualification:

• Tech Computer Science/MCA from Top Tier Institutes.

Skillset Requirements:

• Expertise with Node.JS and associated technologies such as React and Express.
• Fluent in HTML5, CSS3, and JavaScript
• Experience with SQL (Postgres) data models
• Extensive experience developing and working with REST APIs.
• Experience working in a DevOps environment and using tools like Travis, Jenkins.
• Solid experience with containerization using Docker and Kubernetes.
• Proficiency with source control and team collaboration tools (GitHub, Asana, Jira, Slack)
• Experience with data interchange formats such as XML or JSON.
• Solid Experience with AWS, Heroku and Salesforce.

About RattanIndia ltd.

For Details visit: http://www.rattanindia.com">www.rattanindia.com

https://rattanindia.in/">https://rattanindia.in/

• Lead and direct UI team of user experience designers, UI software engineers and graphic designers.
• Design portal-style UI framework, modular and its API interfaces.
• Design intuitive look, innovative plus feel of next-generation UI.
• Collaborate with clients, product management as well as UI team.
• Design entire technical architecture of UI portal framework along with pluggable modules.
• Perform closely with customers, product management, graphic designers plus usability experts to present compelling user experience.