11+ Authentication Jobs in Mumbai | Authentication 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.

🚀 Hiring: MERN Stack at Deqode

⭐ Experience: 2+ Years

📍 Location: Mumbai

⭐ Work Mode:- 5 Days Work From Office

⏱️ Notice Period: Immediate Joiners or 15 Days

(Only immediate joiners & candidates serving notice period)

MERN Stack (2+ Years of Experience) - Mumbai

🔹 Experience: 2 to 4 Years

🔹Skills: MongoDB, Express, React, Node, Docker, Kubernetes, Kafka

Full Stack Developer responsible for managing back-end services and the interchange of data between the server and the users.

Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS and ReactJS development stack

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Position Overview

We're seeking a skilled Full Stack Developer to build and maintain scalable web applications using modern technologies. You'll work across the entire development stack, from database design to user interface implementation.

Key Responsibilities

• Develop and maintain full-stack web applications using Node.js and TypeScript
• Design and implement RESTful APIs and microservices
• Build responsive, user-friendly front-end interfaces
• Design and optimize SQL databases and write efficient queries
• Collaborate with cross-functional teams on feature development
• Participate in code reviews and maintain high code quality standards
• Debug and troubleshoot application issues across the stack

Required Skills

• Backend: 3+ years experience with Node.js and TypeScript
• Database: Proficient in SQL (PostgreSQL, MySQL, or similar)
• Frontend: Experience with modern JavaScript frameworks (React, Vue, or Angular)
• Version Control: Git and collaborative development workflows
• API Development: RESTful services and API design principles

Preferred Qualifications

• Experience with cloud platforms (AWS, Azure, or GCP)
• Knowledge of containerization (Docker)
• Familiarity with testing frameworks (Jest, Mocha, or similar)
• Understanding of CI/CD pipelines

What We Offer

• Competitive salary and benefits
• Flexible work arrangements
• Professional development opportunities
• Collaborative team environment

We are inviting a Fullstack Engineer to join our dynamic product team at BrandLabs. If you’re passionate about building end-to-end web applications and enjoy working across the stack, we’d love to connect!

Key Responsibilities:

• Develop, deploy, and maintain web applications using NextJS, Typescript, NodeJS, NestJS, and ExpressJS.
• Collaborate with the product, design, and backend teams to deliver seamless user experiences.
• Write clean, maintainable, and scalable code following industry best practices.
• Participate in technical discussions, code reviews, and architectural planning.
• Integrate third-party services, APIs, and tools where required.
• Ensure application performance, security, and responsiveness.

Required Skills:

• 1-2 years of hands-on experience in fullstack development.
• Strong proficiency in NextJS, Typescript, NodeJS, NestJS, and ExpressJS.
• Good understanding of RESTful APIs and microservice architecture.
• Ability to troubleshoot, debug, and optimize applications for performance.

Good to Have:

• Experience building n8n workflows for automation.
• Exposure to AI/ML-based projects or AI service integrations.
• Familiarity with DevOps, CI/CD pipelines, and cloud platforms.

Additional Information:

• Location: We prefer candidates based in or around Thane, Mumbai for better collaboration.

Project Links: Please share your GitHub, portfolio, or links to live projects you’ve contributed to.

KEY RESPONSIBILITES:

• Participate in requirements analysis
• Collaborate with internal teams to produce software design and architecture
• Write clean, scalable code using .NET programming languages
• Test and deploy applications and systems
• Create API / webservices
• Develop documentation throughout the software development life cycle (SDLC)
  
  

Candidates with the below skillsets are preferred:

• Proven experience as a .NET Developer
• Familiarity with the http://asp.net/">NETframework, SQL Server and design/architectural patterns (e.g. Model-View-Controller (MVC))
• Knowledge of at least one of the .NET languages (e.g. C#, Visual Basic .NET) and HTML5/CSS3
• Familiarity with architecture styles/APIs (REST, RPC)
• Understanding of Agile methodologies
• Excellent troubleshooting and communication skills
• Attention to detail

Education Details: BSc/BA in Computer Science, Engineering or a related field

Name - http://www.savvologygames.com">Savvology Games

Location - WeWork, Spectrum Towers, Malad, Mumbai

About Savvology - There is a lot of luck involved in most of the mainstream real-money games (Poker, Fantasy, Ludo, Rummy) which makes it hard to win anything. We want to create pure skill-based strategy games (no luck factor), where you can control your outcome better. What’s more, more than 50% of the players win! We make use of Game Theory (the science of decision-making) to come up with games that are so simple that even a 5-year-old can play. Our vision is to encourage people to make better decisions through gamification.

Job Brief

We are looking for an experienced and self-driven Backend Developer to join our young team. You will be responsible for all the server-side logic of our games, ensuring a smooth, glitch-free gaming experience. You have to minimize downtime, crashes, and other bugs and capture & store data correctly for further analytics. You will be working alongside a dynamic team of IITian founders, engineers, designers, and marketers, so there is a lot of scope for learning and growth. 

We’re a young, passionate team looking to make a dent in the gaming space. We work hard, but we party harder (beer/pizza every Friday night). If you love challenges, playing games, and building innovative products from scratch, we’d like to meet you.

Responsibilities

• Build robust backend systems that do not break down.
• Write clean and reusable code for future use and ease of understanding
• Collaborate with front-end developers to integrate user-facing elements with server-side logic
• Give inputs on how to develop new features in the most cost and effort-economical way
• Implementation of security standards, data protection, and privacy protocols
• We want to be a data-driven company. Gather data (events, clicks, behaviors) to facilitate analytics by the Product and Marketing teams
• Create dashboards where all key metrics and data is visible at a glance
• Implement and maintain an SEO-friendly website

Skills

• 3+ years of proven work experience as a Full-Stack / Back-end developer
• 2+ years of NodeJS experience
• 1+ years of ReactJS experience
• Proficient in MySQL and database design and schemas
• Familiarity with ELK stack. Hands-on project experience will be preferred.
• Website development. Should be well-versed in HTML / CSS / Javascript
• Ability to understand business requirements and translate them into technical requirements

Requirements

• Should be a team player and have a problem-solving attitude.
• Should show initiative and be opinionated. We don’t want a yes-man. [MUST] 
• Computer Science or a relevant degree from a reputed university is a plus but NOT mandatory
• Brownie points if you’ve worked on / developed a mobile game before

What you can expect at Savvology Games

• A cool work atmosphere complete with flexible working hours, unlimited coffee, fruit water, games (Foosball, Table Tennis, Pool, Carrom, Board Games, Cards…). Time will fly.
• A hockey-stick trajectory for growth professionally
• Fun people who you’ll want to hang out with after office hours too :)
• Lots of treats - Did we mention beer/pizza every Friday?

• understanding of the front-end and back-end processes;
• ability to work with HTML / CSS;
• ability to work with databases;
• understanding of programming templates and architecture design guidelines;
• profiling and optimizing applications.

Requirements:

- Knowledge of digital ad tech ecosystem

- Minimum 3 years of experience working in a professional environment on full-stack development

- Proven expertise in creating and developing scalable enterprise or B2C web applications

- Experience in REST API development and MVC/MVVM development methodologies

- Deep understanding of the underlying architecture of web servers, load balancing, and browser nuances. Basically, a solid understanding of fundamentals - including execution models, asynchronous programming, object-oriented concepts, relational concepts, etc.

- Proficiency in one or more of Node.js/MEAN stack, Python, Java or other frameworks and willing to be flexible on stack as per the requirement of the project. Most of our current development is on the MEAN stack - expertise in the stack will be a definite plus

- Proficiency in one or more of databases such as MySQL, MongoDB, Cassandra or other equivalent databases and willing to be flexible as per the requirement of the project. Most of our current development is on MongoDB and MySQL - expertise in these will be a definite plus

- Good understanding of developer tools and devops such as Git, Ansible, cloud platforms such as AWS, Docker, etc.