Hire the Best MongoDB Developers

Hello! I'm a Senior Software Engineer with 6+ years of experience building scalable and maintainable systems. I specialize in Back-End development, focusing on FastAPI, PostgreSQL, and microservice architecture with event-driven and asynchronous design patterns. Frameworks & Technologies: - Back-End: FastAPI, Flask, Django, NodeJS, ExpressJS - Front-End: ReactJS, VueJS - Databases: PostgreSQL, MongoDB, Redis - Tools: Docker, Linux, Git (GitHub/GitLab) Services I Offer: - Back-End Development - Deployment & Hosting (VPS, CI/CD) - Consulting & Mentoring Looking forward to working with you!

⏳ Saved founders and users 1000+ hours through fast-loading apps and reliable AI integrations across 7+ SaaSes & Marketplaces 🎖️Top-rated Senior Backend Developer with 7 years of experience. Focused on Multi-Tenant/Marketplace projects and AI Agents(or both) 🔧 I am best at making complex DB queries fast and AI integrations and agents that strike the balance between speed and reliability. 🫡 WHY ME: I like to help you solve your technical challenges by marrying them to business outcomes. Where most developers exist in a bubble of just writing code, I'd also like to implement solutions that would help you succeed. What you'll get: ✅ Jargon-free, NO BS, no-nonsense communication style. Talking the technical to the non-technical. ✅ Zero micro-management: I can think, plan, and propose solutions on my own, yet your input is much welcomed. Your time is better spent marketing or managing the business. ✅ Fluent English Freelancer who communicates ideas in a way that makes business sense 🙌 Industries worked with: Marketplace Style Apps(Jobs, Real Estate, etc), EdTech, FinTech, Integrations 📚 STACK: As a backend developer, I specialize in Node.js, TypeScript, MongoDB, a bit of SQL too, where needed, Trpc, and a bit of Express when needed, Zod, a bit of Next.js and React where needed, Nginx, and Digital Ocean, and a bit of AWS/GCP when needed 💯. 💪🏼 EXTRA EXTRA :) Here are more specific things I'm good at: 📌 Complex MongoDB aggregations designed for querying large amounts of data in a fast way 📌 Making MongoDB typesafe and integrating it with TypeScript and Zod 📌 Experience with nginx, DNS servers & Virtualmin 📌 Web sockets, monorepos - integrated one DB with 2 backends: the main app and our internal dashboard 📌 AI Backend integrations - utilized AI in the backend for data generation & transformation 📌 Experienced with web scraping and external rest api’s 📌 Familiarity with security vulnerabilities such as CSRF, brute force, SQL injections, etc. 📌 Experience with stronger than JWT encryption systems, such as Passetto 📌 Database Migrations: SQL to SQL or SQL to MongoDB 🏁PPS: For examples of my work, make sure to see my portfolio or my intro video, which go into much more detail 📥 JUST MESSAGE ME: Now that you're convinced I'm good at this backend thingy, shoot me a message to start working together 🤝

I am a FULL STACK ENGINEER with strong experience in building scalable, cloud-based applications using ReactJs, NextJs, JavaScript, Python, Ruby, AWS, NodeJS, NestJS, MongoDB, Stripe, Twilio, OpenAI, iElevenLabs and more. Over the past few years, I have led the development of froentend & backend systems for web and mobile apps, including a social media platform MVP where I designed and implemented serverless architecture using AWS Lambda, API Gateway, S3, and DynamoDB. This allowed the platform to scale smoothly and stay cost-effective. My core strength lies in designing RESTful APIs, setting up database structures, and writing clean, efficient code that performs well even under high traffic. I regularly work with MongoDB and have a solid understanding of database design, indexing, and query optimization. I also have hands-on experience in authentication systems, role-based access control, and integrating third-party APIs. I enjoy solving complex problems and making backend systems faster, more secure, and easier to maintain. I’m comfortable working independently or with cross-functional teams, and I often collaborate with frontend developers to ensure the entire application works smoothly from end to end. While my main focus is backend, I also have experience with React, which helps me understand how backend and frontend connect. If you're looking for someone who can take ownership of the end to end development, set up reliable cloud infrastructure, and deliver robust and well-documented APIs — I’d love to help.

I help founders build, fix, and scale AI-powered SaaS products — fast, clean, and production-ready. If your app is slow, breaking, or stuck halfway, I step in, understand it quickly, and ship working solutions without overengineering. What I’ve done for clients: • Fixed critical production issues (auth, APIs, broken data flows) • Built and launched SaaS platforms using Next.js + Node.js • Integrated AI features (OpenAI, LLM workflows, automation) • Implemented Stripe subscriptions and usage-based systems • Improved performance, stability, and scalability before launch What you can expect working with me: • Fast execution with clear communication • Clean, maintainable, scalable code • Focus on real outcomes — not just writing code • Ability to jump into messy or AI-generated codebases and fix them Tech stack: Next.js, React, Node.js, Express, MongoDB, Supabase, REST APIs, Stripe, OpenAI, Vibe Coding(lovable, cursor, replit, bolt, base44 etc..) Most developers just write code. I focus on delivering working products that are stable, scalable, and ready for real users. If you need someone who can take ownership and get things done without constant guidance — let’s talk.

Struggling to find a developer who actually delivers — on time, on budget, without the back-and-forth headaches? Let's fix that. I'm Shubham — a Full-Stack, AI & Web3 Developer with 4+ years of experience turning ideas into production-ready apps. Here's what my Upwork track record looks like: 📊 15+ projects completed | 100% Job Success | 5.0 ★ on every contract | $6K+ earned | 0 missed deadlines That's not luck — it's process. I treat every project like a product launch, not a freelance gig. WHAT I SOLVE FOR YOU: ✅ "I need a full app built — but I don't want to manage 5 different freelancers." → I handle everything end-to-end: frontend (React, Next.js), backend (Node.js, Django), database (PostgreSQL, MongoDB, Supabase), deployment (AWS, Vercel) — and mobile (React Native, Flutter). One developer. All platforms. Ship faster. ✅ "I want AI in my product, but don't know where to start." → I've built AI chatbots, AI agents that automate business workflows, and LLM-powered features using Claude API, OpenAI, and LangChain. I also use Cursor, Bolt, and Lovable to prototype 3x faster — meaning you get working demos in days, not weeks. ✅ "I need a Web3 app — smart contracts, DApp, the whole stack." → I develop on Solana and Ethereum — smart contracts (Solidity, Rust), wallet integration, token-gated access, NFT platforms, and DeFi dashboards. Full Web3 stack from contract to frontend. ✅ "I've been burned by developers who ghost or deliver broken code." → My clients don't have that problem. One said, "Shubham executed so much in such a short amount of time, with so little input from me needed. Very impressive!" — I communicate daily, write documented code, and deliver deployment-ready builds, not half-finished repos. RECENT RESULTS: → Built a complete auction platform with Boogable API integration — delivered ahead of client's timeline (5.0 ★) → Developed a custom retail hire portal with complex API integration — client gave "Solution Oriented" badge (5.0 ★) → Created a headless Next.js + WordPress auction website from scratch — 2 five-star reviews on one contract → Shipped a React-based data lineage visualisation tool — delivered in 8 days (5.0 ★) → Built a decentralised media & content platform (DeHub) — live and functional TECH STACK: Frontend: React, Next.js, TypeScript, Tailwind CSS Mobile: React Native, Flutter (iOS + Android) Backend: Node.js, Django, Python, Express Database: MongoDB, PostgreSQL, Supabase, Firebase AI: Claude API, OpenAI API, AI Agents, LangChain Web3: Solidity, Rust, Solana, Ethereum, Anchor, Hardhat Deploy: AWS, Vercel, Docker, CI/CD Integrate: Stripe, Shopify, WordPress (headless), GraphQL, REST APIs WHAT YOU GET WORKING WITH ME: → A clear project plan within 24 hours of hire → Daily progress updates (async or call — your choice) → Clean, documented, production-grade code → Deployment-ready delivery with post-launch support → Someone who actually cares about YOUR business outcome, not just closing a ticket Available right now for fixed-price or hourly work. Drop me your project details — I'll reply within a few hours with a free plan and honest estimate. No fluff, no surprises.

Hi! I’m a Full-Stack Developer with hands-on experience in building and maintaining robust, scalable web applications. I specialize in C# and the .NET ecosystem Tech Highlights: Languages: C#, TypeScript, JavaScript, Java Frontend: Angular Architecture & Patterns: MVVM, MVC Backend: ASP.NET, ASP.NET MVC, ASP.NET Web API Databases: PostgreSQL, SQL Server, SQL, MongoDB, NoSQL Cloud: AWS (S3 Bucket), Azure