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I'm looking for an experienced backend developer to manage database operations and implement user authentication. Key Requirements: - Database Management with MongoDB - User Authentication Setup Ideal Skills: - Proficiency in MongoDB - Strong experience in user authentication methods - API development skills is a plus Have To be good in For firebase , Database etc Please share relevant past projects and your approach to this task.
Project ID: 40606754
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38 freelancers are bidding on average ₹271 INR/hour for this job

Hello I have extensive experience building robust backends with MongoDB, Firebase, and secure user authentication systems. My approach involves designing scalable schemas, implementing industry-standard auth, and writing clean, efficient APIs. I have delivered multiple secure database-driven applications and am ready to support your backend needs efficiently. Let’s discuss more in chat to start immediately. Best Regards Techwelfare
₹250 INR in 40 days
7.0
7.0

Hi, I can help with your "MongoDB Backend Developer Needed" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving javascript, nosql couch & mongo, mysql, amazon web services, node.js, backend development, nosql, mongodb, database management, api development, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. You'll get clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹240 INR in 1 day
6.8
6.8

As a seasoned full-stack developer with over five years of professional experience, I'm confident in my ability to tackle your MongoDB backend project. MongoDB is one of my core competencies, having worked extensively on database management and APIs that rely on MongoDB. In terms of user authentication, I have robust experience in implementing secure login and authorization systems that ensure the privacy and integrity of your users' data. I've previously incorporated authentication methods such as OAuth, JWTs, and Firebase Authentication - all tailored to each unique project's needs. Choosing me for this project means working with someone who prioritizes code cleanliness, optimization, and maintainability. My commitment to timely delivery and transparent communication ensures you stay informed every step of the way. Let's discuss your project further, and together we'll create something truly remarkable!
₹250 INR in 40 days
5.7
5.7

Setting up auth and database ops in MongoDB is straightforward, but the mention of Firebase makes me want to clarify the stack first. If you're using Firebase Auth with MongoDB as the data layer, I'll wire up JWT verification middleware that validates Firebase tokens before any DB operation hits Mongo. I'll structure the MongoDB schemas with proper indexing, set up the auth flow (signup, login, token refresh), and build the API endpoints to tie it all together. One thing worth noting: if you're mixing Firebase and MongoDB, storing user profiles in Mongo while relying on Firebase for auth avoids duplicating session management. 1) Are you using Firebase specifically for authentication, or do you want a custom auth system with MongoDB directly? Happy to talk details in chat. Shayan
₹205 INR in 40 days
5.2
5.2

Hello, I have read your job description and I am interested in your job post. I am ready to start now. Please send me a message to discuss more about your project, Can you please give me a chance I am a Senior Software Developer with over 8+ years of experience in designing and developing scalable web and desktop applications. I specialize in Microsoft technologies and delivering high-quality, secure, and performance-driven applications. My Expertise: Backend Development:ASP.NET, ASP.NET Core, MVC, Web API, WebForms, WCF Services Programming Languages:C#, Frontend Development:JavaScript, jQuery, AJAX, HTML, CSS Database Technologies:SQL Server, MySQL,MongoDB Reporting Tools:Crystal Reports, RDLC, SSIS, SSRS
₹200 INR in 40 days
3.7
3.7

I can help structure the backend with a reliable MongoDB setup, secure authentication flow, and Firebase integration while keeping the API layer organized and scalable. For this project, I would focus on: - Designing clean MongoDB collections and indexes for performance and maintainability - Implementing secure authentication with proper session/token handling - Integrating Firebase services where needed for authentication or realtime features - Building or improving backend APIs with clear validation and error handling - Ensuring the backend is easy to extend as new features are added My background is focused on backend engineering for high-availability systems, including APIs, databases, authentication flows, and cloud-based architectures. I usually prioritize clean structure, security, and predictable performance from the beginning to avoid rework later. I can also review the current backend implementation if one already exists and improve weak points related to database access, auth logic, or API organization. If you share the current stack and the expected workflow for users, I can quickly define the best implementation approach and start immediately.
₹400 INR in 14 days
3.6
3.6

Hi there, I can help you build a robust, secure, and scalable backend system with MongoDB and Firebase integration. As a Backend Lead & Full Stack Developer, I specialize in high-performance database design, secure authentication, and RESTful APIs using Node.js, Express/NestJS, MongoDB, and Firebase. How I Will Approach Your Project: 1. Database Architecture & Optimization (MongoDB): • Schema design tailored for low latency and high scalability. • Strategic indexing and aggregation pipelines for fast read/write operations. 2. Secure User Authentication Setup: • Seamless integration of Firebase Authentication (Email/Password, Social Logins, Phone OTP). • Custom JWT & RBAC (Role-Based Access Control) middleware for protected endpoints. • Token refresh and session management. 3. API Development & Integration: • Clean, modular REST APIs with strict input validation and unified error handling. • Real-time data sync capability if required. Relevant Experience: • Multi-Tenant & Enterprise Systems: Architected secure role-based backends, multi-tenant database isolation, and encrypted document lifecycles using AWS S3. • Real-time Data Systems: Built scalable microservices and WebSocket-driven APIs delivering <200ms latency updates. I am available to start immediately and will deliver clean, well-documented, production-ready code. Let’s connect on chat to discuss your specific user roles and project scope. Best regards, Chandra Mouli | Backend Lead & Full Stack Developer |
₹300 INR in 20 days
2.8
2.8

Hello, I have strong experience with MongoDB, Firebase, secure user authentication (JWT/OAuth/Firebase Auth), and backend API development. I can build a scalable, secure backend with efficient database management, authentication, and clean, well-documented code, and I'd be happy to share relevant project examples.
₹250 INR in 40 days
3.1
3.1

I can take this on and handle both the MongoDB database work and the authentication setup cleanly, with Firebase experience layered in wherever it fits your stack. I've built IQRAi and the AI Voice Receptionist, both involved structured backend logic, database handling, and secure user data management, similar approach applies here for setting up reliable authentication and data operations. Similar work here https://www.freelancer.pk/u/UmairBuildsAI I'd start by structuring your MongoDB collections around your actual data needs, set up secure user authentication with proper token handling and session management, integrate Firebase where it best supports auth or real-time features, and expose clean API endpoints so everything connects smoothly with your frontend. Let's connect on a call and discuss. Best Regards, Umair
₹250 INR in 40 days
1.1
1.1

You need MongoDB data operations plus real authentication - the two places a backend quietly rots. I build exactly this. I ran the Node/NestJS + AWS backend for a government policy board (RBAC across five user roles, e-voting, auto-minutes), and shipped an event-ticketing SaaS with 50+ REST endpoints on Postgres with Stripe and Twilio in production. Two failure modes I would close on day one: 1. Firebase + your own backend: verify the Firebase ID token server-side on every request and derive the user from it. Trusting a UID the client sends is the most common auth hole I find. 2. MongoDB: queries get written before the indexes exist, so they pass in dev and collection-scan in production. I index to the actual query shapes (compound fields in sort order) and confirm with explain() before calling it done. Approach: model collections around your read patterns -> auth middleware (token verify -> role claims) -> typed API layer -> explain()-verified indexes -> seed data + smoke tests. For scale context, I also run a voice-banking backend handling 500K+ commands/month at 99.3% uptime. One question: should Firebase Auth be the source of truth for users, or should MongoDB own the user records with Firebase only issuing tokens? That decides the schema. - Zohaib https://www.freelancer.com/u/ZohaibSathio
₹225 INR in 40 days
1.1
1.1

Handling database operations and user authentication seamlessly is crucial; I’ve done this with MongoDB and Node.js in previous projects that scaled to thousands of users. My approach involves designing a secure authentication flow using JWTs, setting up indexes for efficient data retrieval, and ensuring robust security practices—like encrypted credentials and role-based access. I’ve built RESTful APIs for user management that integrated well with Firebase and other NoSQL databases, reducing latency and improving user experience. Would you like me to share a specific example from a recent project where I improved database performance or added authentication layers? Also, do you have a preferred authentication method or existing API structure I should align with?
₹100 INR in 7 days
0.0
0.0

Hello, I have seen your are looking backend developer working in MongoDB, Firebase and Node.js I am having 7 years of experienced as backend developer and I will work according to your features list. Please share more details of your project in chat. Looking forward to your response Thanks
₹100 INR in 40 days
0.0
0.0

❤️Hi,there❤️ I have extensive experience in MongoDB database management and implementing user authentication, aligning perfectly with your project requirements. I can handle user authentication setup efficiently and have a strong background in API development. This project is a great fit for my skills, and I can deliver it within the specified timeframe with 100% accuracy. I would love to discuss further and invite you to take a look at my profile for relevant past projects showcasing my expertise in MongoDB, user authentication, and API development. Looking forward to connecting with you to discuss your project needs further. Warm regards, Thaveesha
₹250 INR in 40 days
0.0
0.0

Hi, I can help you set up a secure and reliable backend for your project. I have experience working with MongoDB, Firebase, Node.js, and authentication systems, and I can implement user registration, login, database operations, and secure authentication with clean, maintainable code. If needed, I can also develop REST APIs to connect your frontend with the database and ensure everything is organized and scalable for future development. I believe in clear communication, writing well-structured code, and delivering on time. I'd be happy to discuss your project requirements and get started right away. Looking forward to working with you!
₹150 INR in 40 days
0.0
0.0

I am a backend developer experienced in managing database operations and implementing user authentication. My areas of expertise include: - Database management with MongoDB - User authentication setup Key skills: - Proficiency in MongoDB - Solid experience with user authentication methods - API development skills (a plus) - Competence in Firebase, databases, etc. Please provide details on what is required to get the job done.
₹250 INR in 40 days
0.0
0.0

As an industry-proven professional with 15+ years of experience in the full stack development, I am fully adept in handling any MongoDB-related tasks – from optimizing queries for improved performance to managing complex databases efficiently. My proficiency includes not only a deep understanding of MongoDB but also its integration within APIs. This makes me a standout candidate for your project. Additionally, my extensive experience in user authentication methods complements your second requirement perfectly. I have proven skills in implementing robust and secure authentication systems, guaranteeing that only authorized users can access your application's sensitive data. This expertise will be crucial in ensuring your backend's safety against security threats. To sum up, my proficiencies and experience make me an ideal fit for your MongoDB Backend Developer position. I offer proficiency in MongoDB, existing API Development skills, and extensive knowledge of Node.js, React.js alongside with JavaScript and MySQL. Moreover, as a freelancer, I have been lauded for providing clean and maintainable solutions with high-performance outcomes that enhance the user experinces. Let me bring these to bear on your project, maximizing efficiency and boosting your app's backend operations.
₹100 INR in 40 days
0.0
0.0

Hi, I'm a full-stack developer with solid backend experience in Node.js, REST APIs and relational databases (MySQL, SQL Server), and hands-on work with cloud services (AWS EC2/S3) in a SaaS-style community platform I built end-to-end. While my direct production experience is stronger on MySQL/SQL Server than MongoDB specifically, I'm comfortable with NoSQL data modeling and can implement MongoDB database management and secure user authentication (JWT/session-based, or Firebase Auth if preferred) efficiently. My approach: define schemas/collections, set up authentication middleware with proper hashing and token handling, and expose clean documented APIs. I can share examples of my Node.js/API work and am available to start right away.
₹250 INR in 20 days
0.0
0.0

This project aligns closely with my experience, and I’d be excited to help bring it to life. I have worked extensively with MongoDB, managing database operations and implementing user authentication for various applications. Understanding the importance of a clean and efficient setup, I can ensure seamless integration of user authentication methods that will keep your application secure and user-friendly. While I am new to Freelancer, I have tons of experience and have done other projects off site, including a recent project where I built a robust backend system with MongoDB and Firebase. I am open to discussing a small milestone or providing a quick draft to demonstrate my approach. I would love to chat more about your project! Regards, Bester Devenier
₹300 INR in 7 days
0.0
0.0

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹100 INR in 40 days
0.0
0.0

I have done some good project in Nodejs using mongodb with own auth . I loved to work on mongodb database. And Recently I have deploy 2 project on aws
₹112 INR in 46 days
0.0
0.0

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