11+ Authorization Jobs in Mumbai | Authorization Job openings in Mumbai

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.

- Design, develop, and maintain full stack web applications using Python (backend) and modern frontend frameworks

- Build and integrate REST APIs; work with databases (SQL/NoSQL)

- Apply AI/ML concepts or tools within applications (e.g., model integration, LLM APIs, data-driven features)

- Collaborate with cross-functional teams on financial/trading platform features

- Write clean, scalable, well-tested code; participate in code reviews

- Troubleshoot and optimize application performance

Role Description

We are seeking a full-time AI Developer specializing in Generative AI and Large Language Models (LLMs) to join UpSolve Solutions in Mumbai. This client-facing, on-site role involves designing, developing, and deploying AI models, specifically focusing on GenAI and LLMs. The AI Developer will leverage expertise in machine learning, natural language processing, and data science to build cutting-edge AI solutions that drive business innovation and solve complex challenges.

Qualifications

• Proficiency in Python
• Strong projects in Flask + JS
• Excellent problem-solving, critical thinking, and analytical skills
• Strong communication and presentation skills, with the ability to convey technical concepts to non-technical stakeholders
• Bachelor's or Master’s degree in a relevant field (e.g., Computer Science, Artificial Intelligence, Data Science)

About the Organisation: 

WeMakeScholars is an organization funded and supported by the Ministry of IT, Government of India under the 'Digital India Campaign'. We offer international education finance via scholarships and education loans, to study abroad aspirants. We are currently a 120 members team. Last financial year, we disbursed 2200 Cr in education loans to 8300 students across India.

We are looking for a PHP Developer who is keen to work in a startup environment esp. a product-based company. 

Job Overview

We are hiring developers (from 0 to 10 experience) with relevant knowledge and experience with the development and deployment of large-scale cloud-native enterprise systems on PHP, REST APIs, Node Js, Flutter, AWS & MySql. 

As a full-stack engineer, you will be working to create scalable, maintainable, bug repellent state of art web applications. 

About Tech Department:

• Our internal tech team is responsible for end-to-end in-house tech support which includes and is not limited to design, development & deployment. 
• We are continuously developing and improvising our products to enhance customer and team experience.
• As we are in the Fintech space, our team has to ensure the database security of the application.

Job Summary:

• Participate in the full development life cycle, working within broadly defined parameters including design, development, testing, and maintenance of the existing application with minimal supervision.
• Work on optimization and performance improvement activities. Instrument and test performance metrics.
• Participate in peer-to-peer code review to improve the quality and maintenance of the codebase.
• Collaboration with multiple internal/external stakeholders such as product, business, DBA, and Dev Ops.
• Design and implement APIs for web/mobile (both Andriod & iOS) applications.
• To be available on call for the projects or features developed by you. Things break, you will be responsible to fix it when it does.

Experience & Skills Required:

• 3+ years of experience (we are hiring freshers too for junior positions)
• Hands-on experience and knowledge of engineering end-to-end systems.
• Understanding of complete software development life cycle, including coding standards, code reviews.
• Familiarity with multiple software development practices and tools
• Ability to write clean, modular, and loosely coupled code by the use of design patterns.
• Proficiency in the implementation of algorithms and the use of advanced data structures to solve problems in computing.
• A solid foundation and implementing principles of computer science is a must. Ex: object-oriented programming, concurrency, fundamentals of computer science, SQL databases. 

Value addition:

• Experience with AWS
• Working knowledge of payment gateways 
• Good knowledge of Mysql Query optimization and Database design. 

• Design and implementation of the overall web architecture
• Pixel-perfect implementation and integration of our approved user interface
• Design and construction of REST API
• Build efficient, testable, and reusable PHP modules
• Design and deployment of database
• Integration of data storage solutions including various databases, blob stores, key-value pairs, etc.
• Solve complex performance problems and architectural challenges
• Ensuring the entire stack is designed and built for speed and scalability
• Design and implementation of continuous integration and deployment
• Handle overall website deployment and build process
• Work closely with different stakeholders to both develop detailed specification documents with clear project deliverables and timelines, and to ensure timely completion of deliverables.

• 3-5 years of experience in web development and coding within a cross-disciplinary environment
• Good at writing HTML, CSS,Bootstrap and JavaScript. Being up on the latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum)
• Good experience in JQuery, JavaScript
• Must have exp. on PHP, MYSQL, MVC, Linux, logging, Unit testing, Subversion, Restful/soap
• Experience with Source Control tools (Subversion
• Expert in back-end programming language PHP with Laravel framework and IDE
• Good experience in JQuery, JavaScript.
• ReactJS, AngularJS or VueJS would be preferred
• Experience with Source Control tools (Subversion)
• Ideally, familiarity with CSS preprocessors, bundlers, and associated languages/ syntaxes/ libraries
• Database design and management with No-SQL, Mysql, including being up on the latest practices and associated version
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
• Excellent communication and teamwork skills
• Familiarity with a relevant and globally supported framework both front-end and back-end
• Thorough understanding of user experience and possibly even product strategy
• Experience implementing testing platforms and unit tests
• Proficiency with version control system preferred Git
• Appreciation for clean and well-documented code
• Experienced in full web development life cycle from requirements gathering to Server management and deployment for the relevant environment
• WordPress Experience is a plus.
• Understanding of SEO principles.

Description of Skills/abilities:

We are looking for a Python Web Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application; therefore, a basic understanding of front-end technologies is necessary as well.

Responsibilities:

1. Writing reusable, testable, and efficient code.
2. Design and implementation of low-latency, high-availability, and performant applications.
3. Integration of user-facing elements developed by front-end developers with server side logic.
4. Implementation of security and data protection.
5. Integration of data storage solutions may include databases, key-value stores, blob stores, etc. Experience administering innovation with methodologies such as design thinking.
6. Experience working on Agile Scrum and DevOps aligned delivery teams.
7. Interest and ability to learn other coding languages as needed.
8. Strong communication skills and great product sense.
9. Proficient communication skills verbal and written.
10. Understanding of accessibility and security compliance depending on the specific project.
11. Knowledge of user authentication and authorization between multiple systems, servers, and environments.
12. Understanding of fundamental design principles behind a scalable application.
13. Familiarity with event-driven programming in Python, using of Pycham.
14. Understanding of the differences between multiple deliveries platforms, such as mobile vs desktop, and optimizing output to match the specific platform.
15. Able to create database schemas that represent and support business processes.
16. Strong unit test and debugging skills.

Skills:

1. Expert in Python, with knowledge in Python web framework such as Django, Flask depending on technology stack.
2. Familiarity with some ORM (Object Relational Mapper) libraries.
3. Able to integrate multiple data sources and databases into one system.
4. Understanding of the threading limitations of Python, and multi-process architecture.
5. Good understanding of server-side templating languages such as Jinja 2, Mako, etc depending on your technology stack.
6. Basic understanding of front-end technologies, such as JavaScript, Typescript, react, react hooks, HTML5, and CSS3.
7. Proficient understanding of code versioning tools such as Git, Mercurial or SVN.

Skill Set:

1. 4+Years Full stack Python Developer - exposure to web frameworks like Django, Flask and Falcon.
2. Experience building APIs for a rapidly iterating product and restful APIs and development of services layer using Pythons Flask framework and should be proficient in writing unit test cases using Pytest package.
3. Database level programming using both SQL (MySQL, PostgreSQL, Oracle) and No SQL (Mongo DB/Casandra) and designing the database level stored procedures and persistence logic.
4. HTML/CSS/JavaScript and JavaScript framework and knowledge on React JS is a plus.
5. Experience in developing Arduino libraries is an added advantage.
6. Experience working with two or more from the following: Web Application development, Unix/Linux environments, mobile application development, distributed and parallel systems, machine learning, information retrieval, natural language processing, networking, developing large software systems, and/or security software development

Skills:-

Asp.Net, .Net Core, Web API,ASP.NET MVC, ReactJS,Jquery,Javascript,HTML

Desired profile

• Good verbal & written communication
• Proactive
• Flexible to working hours
• Good in team work as well as individual contributor
• Must be able to contribute to productivity in short time

1. Develop high performance mobile and web applications in Artificial Intelligence, Machine
Learning, Android, iOS and various frontend and backend technologies.

2. Create requirements, design documentation and test plans for above, adhering to
standard templates provided by the organization.

3. Write clean, maintainable, efficient code that confirms to software development
standards.

4. Well versed with multiple front end and backend technologies such as Angular, BootStrap,
Node, PHP, Spring, ReactJS, etc.

5. Understand full stack development process and is familiar with REST.

6. Can interact with client directly on requirement gathering, delivery planning and
implementation

Job Location: Thane

Qrata is currently searching for MERN stack developer for Omani start up Delivery Company.

Who are we?

The company begin its life in June 2018 as Oman’s first online delivery mobile application, in the capital city Muscat. The application allows customers in Muscat to place an order from a choice of restaurant or food outlet and get it delivered within the comforts of their home. The application allows services on Android and IOS both.

It’s envisions itself as the ideal delivery and discovery platform for everything under the sky. With customer satisfaction on top of our priority list ,it ensures that customers receive the best of both the worlds. A wide range of products and fast efficient delivery are the areas where the company constantly wants to excel.

Role – MERN Stack Dev.

1. 3+ years of experience in MERN (Node, React.JS)
2. Algorithms & Data structure concepts
3. B2C App / Product Company Experience
4. BE and BTECH in Computer, Computer Science, IT