Hire the Best Nest.js Freelancers
in Bangladesh

Total Year of Experience: 8 Years. I want to build my career as a Freelancer. I am searching for an opportunity to show my skills & experience. I am a really hard-working and responsible individual, with plenty of experience & good computer skills. I am an individual who is willing to learn and enhance my skills using my talent and ability. I want to prove myself motivated to all of you. Availability 8:00 AM EST till 4:00 PM PST Matching American Work Hours EXPERT IN 1.PHP 1.LARAVEL. 4.HTML 5.CSS 6.VUE.JS 7.REACT.JS 8.JQUERY 9.JAVSASCRIT 10.Angular 11. React(NextJs), 12.Nodejs(ExpressJS, Nestjs). 13.My SQL 14.Postgresql

Top Rated Full-Stack Developer specializing in Next.js, Supabase, and AI-powered web applications. I build products that are fast, scalable, and ready to grow with your business. Over the past several years, I've helped startups and growing businesses turn complex ideas into polished, production-ready apps — using modern tools like Next.js, Supabase, PostgreSQL, and AI automation that actually make a difference to your bottom line. Whether you need a customer-facing SaaS platform, an internal dashboard, or an intelligent workflow built on GPT or Claude, I know how to get it shipped cleanly and on time. Here's what working with me looks like in practice: You get a codebase that won't fight you later. I build with TypeScript and clean architecture patterns so your team can maintain and extend the app without needing a full rewrite six months down the line. You get real-time features without the complexity headache. Supabase is one of my core tools — I use it to handle authentication, row-level security, and live data so you're not stitching together five different services. You get AI that's actually integrated, not bolted on. I've connected GPT-4, Claude, and custom ML models into full-stack apps — from document processing pipelines to smart search, recommendation engines, and automated workflows that save teams hours every week. You get a developer who communicates. No ghosting, no vague updates. I write clear documentation, send regular progress notes, and flag issues early rather than late. What I work with: → Frontend: Next.js (App Router), React, Tailwind CSS, TypeScript → Backend: Node.js, Express, REST & tRPC APIs, MERN Stack → Database: PostgreSQL, Supabase, MongoDB, Prisma ORM → AI & Automation: OpenAI, Anthropic Claude, LangChain, n8n, Zapier integrations → DevOps: Vercel, Railway, Docker, CI/CD pipelines Whether you're launching your first product or scaling an existing one, I bring the same level of care and precision to every project. As a Top Rated freelancer, my clients know they're getting someone who shows up, delivers, and treats their budget like it matters. Ready to build something great? Click "Hire Now" or send me a message — I typically respond within a few hours and am happy to jump on a quick call to talk through your project.

Engineering SaaS Products, AI-Powered Applications & Modern Web Systems - from MVP to Scale. Over the past 4+ years, I have contributed to 100+ websites, SaaS platforms, backend APIs, and web & mobile applications for startups and growing businesses across healthcare, education, AI, automation, and internal business systems. Building software isn't usually the difficult part. The decisions made before development starts are often what determine whether a product stays maintainable six months later. That's where I try to add the most value. I work with founders and growing businesses to design and build SaaS products, AI-powered applications, backend systems, and business automation that solve real operational problems, not just deliver features. Before writing code, I like to understand how users move through the product, how data flows between services, where responsibilities belong, and which technical decisions will become expensive to change later. That usually leads to software that's easier to maintain, easier to extend, and far less painful to scale. Over the past few years, I have helped build products across SaaS, healthcare, education, AI automation, internal business tools, and workflow platforms. Some projects started as early MVPs, while others involved improving and expanding existing production systems. ### What I usually build ⦿ SaaS Platforms ⦿ Backend APIs & System Design ⦿ Multi-Tenant Architectures ⦿ Authentication & Permission Systems ⦿ Business Workflow Automation ⦿ Internal Dashboards & Admin Portals ⦿ AI Integration & Automation: OpenAI API, AI-powered features, custom API development ⦿ Mobile Apps: React Native (iOS & Android), Redux, Expo, Firebase, API Integrations ⦿ Automation Flows: Zapier, n8n, API integrations, AI workflows (voiceover, video generation) ⦿ Full Stack Development: MERN Stack, Next.js, Nest.js React.js, Node.js, Express.js, MongoDB, MySQL, Prisma, Wordpress etc ⦿ Optimization: Performance tuning, code refactoring, bug fixing, deployment (Vercel, Render, AWS, Digital Ocean) ### Selected Project Highlights ⦿ Contributed to 100+ web applications, SaaS platforms, backend APIs, and business systems across healthcare, education, AI, and workflow automation. ⦿ Designed and implemented AI-powered workflows including content generation, automation pipelines, and custom OpenAI integrations for production products. ⦿ Built scalable multi-tenant SaaS platforms with authentication, role-based permissions, dashboards, payment flows, and complex business workflows. ⦿ Planned and implemented backend architectures, API layers, and database designs that supported long-term product growth instead of short-term feature delivery. ⦿ Improved and expanded existing production systems without disrupting active users, while keeping the codebase maintainable as new features were introduced. ⦿ Delivered complete products from architecture and database design through deployment, including frontend, backend, cloud infrastructure, and ongoing maintenance. If you are looking for someone who can contribute beyond implementation someone who thinks carefully about architecture, workflows, maintainability, and long-term product health while still delivering reliable code, I would be happy to learn more about what you are building. Thanks Rohan Mostofa ### Technologies I work with:- Web & Mobile Apps | AI Automation & AI Integration Expert | Full Stack Development | JavaScript | MERN Stack | Next.js | React.js | Node.js | Express | Nest.js | MongoDB | PostgreSQL | DevOps | AWS | MySQL | Prisma | Zapier | n8n | Make | OpenAI | Web Design | WordPress Development | AI Automation next.js | react.js | web application developer | full stack developer | react | javascript | MERN stack | ElevenLabs | n8n | Make | API Development | AI Agent Development | System Arcitecture | Redux | Nest.js | Radis | Kafka | PostgreSQL | Python | OpenAI API | AI Developer | AI Bot | AWS | CI/CD | AI Code | node js | full stack development | react native | html css | next js developer | frontend developer | web app development | MERN | web app | mobile app | node.js developer | website development | web design | react developer | tailwind css | figma to react | full stack developer | supabase | ai integration | full stack website | build website | app development | react app | react.js developer | react front end | software development | mern stack developer | mobile application | ai web app | ai website | ai mobile app | react website | website developer | frontend development | next.js | backend development | ai development | programmer | website design | react frontend | vue.js | app creation | mobile app developer | android development | css | html | node | php | create website | full stack web & app developer | responsive | ai chatbot | typescript | wordpress development

✨𝗬𝗼𝘂𝗿 𝗶𝗱𝗲𝗮 𝗶𝘀 𝗻𝗼𝘁 𝗷𝘂𝘀𝘁 𝗮 𝗽𝗿𝗼𝗱𝘂𝗰𝘁, 𝗶𝘁'𝘀 𝘆𝗼𝘂𝗿 𝗗𝗥𝗘𝗔𝗠. ✨ 🎖️Being Top Rated and with 7 years of experience let's 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗘 𝗣𝗔𝗬𝗠𝗘𝗡𝗧 𝗚𝗔𝗧𝗘𝗪𝗔𝗬 in your application ✅ Top Rated Freelancer ✅ 2+ Years of Payment Gateway Integration experience ✅ 7+ Years of experience in Web app & Mobile development 🚀 50+ React application design & developed till date. 🚀 10+ React native mobile application design & developed till date. 🚀 Worked with SAAS, Real Estate, Health care, IOT, E-commerce, Fintech, etc 🚀 MVP consultant ✨Project architect & consultant ❤️ Passion for web & mobile application development 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 𝗜 𝗱𝗼: --------------------------- ✅ Billing & Invoicing • Recurring payments & billing automation • Auto-generated invoices & receipts • Manual invoices via mobile-friendly web forms • Metered/usage-based billing (e.g., API calls) • Flexible subscription schedules 💳 Checkout & Payment Flows • Stripe-hosted & custom subscription checkouts • Custom payment flows (PCI DSS compliant) • Native Stripe Checkout with chargeback protection • Beautifully designed secure payment forms 👥 Customer Management • Customer portal for managing subscriptions • Store customer info securely (PCI compliant) 🔁 Webhooks & Automation • Stripe webhooks for emails & custom invoices • Setup static & dynamic Stripe products ⚡𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆 𝗦𝘁𝗮𝗰𝗸: React, Next.js, React Native, Node.js, Express, NestJS, MongoDB 🏆 𝗥𝗲𝘃𝗶𝗲𝘄𝘀 𝗮𝗻𝗱 𝗳𝗲𝗲𝗱𝗯𝗮𝗰𝗸 𝗳𝗿𝗼𝗺 𝗵𝗶𝗴𝗵-𝗽𝗿𝗼𝗳𝗶𝗹𝗲 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 🏆 ⭐️⭐️⭐️⭐️⭐️ "Highly recommend Ajmin. If anyone needs a reference, connect with me. He's multitasking and really engages in the project" - 𝗠𝗶𝗺𝘀 𝗧𝗮𝗹𝘀𝗶, 𝗟𝗼𝗻𝗱𝗼𝗻, 𝗨𝗞 ⭐️⭐️⭐️⭐️⭐️ "Ajmin was great to work with. He is not only a talented developer, but also a friendly person who truly wants to see his clients and their projects succeed" - 𝗧𝘂𝗻𝗮, 𝗕𝗼𝘀𝘁𝗼𝗻, 𝗨𝗦𝗔 ⭐️⭐️⭐️⭐️⭐️ "Knowledgeable and easy to work with. I do recommend to other works. His technical expertise is impressive" - 𝗔𝗻𝗰𝘆 𝗟𝗮𝘂𝗿𝗲𝗻𝘁, 𝗝𝗮𝗽𝗮𝗻 ⭐️⭐️⭐️⭐️⭐️ "It was a pleasure to work with Ajmin. His communication about his progress and approaches were very clear and to the point" - 𝗣𝗿𝗮𝗸𝗵𝗮𝗿, 𝗜𝗻𝗱𝗶𝗮 ⭐️⭐️⭐️⭐️⭐️ "Seller went above and beyond what was required. Already discussing a new project. His expertise in modern web technologies is exceptional" - 𝗦𝗮𝘆𝗲𝗱 𝗕𝗮𝗵𝗮𝗿𝘂𝗻 🌟𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗦𝗸𝗶𝗹𝗹𝘀: ------------------------------- - Performance Improvements (SQL + Code) - Database Design (SQL, MySQL, Postgres) - JWT Authentication - API Documentation - Middleware - Agile Methodologies (Scrum) - Project Management: JIRA ---------------------------------------------------- 𝗟𝗲𝘁'𝘀 𝗱𝗼 𝗮 𝗿𝗼𝗰𝗸 𝘀𝗼𝗹𝗶𝗱 𝗽𝗮𝘆𝗺𝗲𝗻𝘁 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻, 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥 ⚡️ ============================================================================= 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 𝘁𝗼 𝗙𝗶𝗻𝗱 𝗺𝗲 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸: Stripe Integration Expert, Stripe Connect Developer, Stripe Subscriptions Developer, Stripe Checkout Implementation, Stripe Webhooks Developer, Payment Gateway Integration Specialist, Plaid Integration Developer, PayPal Developer, PayPal REST API Expert, PayPal Subscriptions Integration, Revolut Pay Integration, Online Payment Expert, Fintech Payment Integration, Secure Payment Flow Developer, E-commerce Payment Gateway Specialist, SaaS Billing & Payments Developer, Multi-vendor Payments with Stripe Connect, Payout Automation Developer, Subscription Billing System Developer, Payment API Integration

Thank you for taking the time to visit my profile. With over Nine years of dedicated experience in software development, I bring a wealth of expertise to the table. While the following areas represent my core strengths, my skills extend beyond these boundaries: ✅ Top Rated Plus on Upwork: I'm a Top Rated Plus freelancer with 100% Job Success Score, around 30 completed jobs, and a spotless record with zero negative feedback. ✅ Full Stack Development: Skilled in NestJs, NextJs, React JS, React Native, TypeScript, MySql, PostgreSQL, Docker, K8, Helm Chart ✅ Cloud Service & AWS: Proficient in AWS services like Cognito, EC2, S3, Lambda, IAM, SNS, SQS, ECS, EKS, ALB and many more. I also have a good experience with different Firebase services. ✅ GitOps: Experienced in GitOps/DevSecOps practices and CI/CD with tools like Jenkins, Github Actions, and Gitlab CI/CD. I'm eager to join your team or discuss your project. Let's create something extraordinary together!

I’m a passionate and reliable Full Stack Developer with years of experience building dynamic and scalable web applications. I specialize in both PHP/Laravel and Node.js/NestJS backends, along with modern frontend frameworks like React and Next.js. I’ve recently expanded my skill set with NestJS and TypeScript, enabling me to build enterprise-level backend systems that are highly modular, testable, and maintainable. 💻 Core Skills & Technologies: Back-End: PHP, Laravel, Node.js, NestJS, Express.js Front-End: React.js, Next.js, Vue.js, JavaScript, TypeScript, HTML, CSS Database: MySQL, PostgreSQL Other Tools: REST APIs, JWT Authentication, Admin Panels, WebSockets, Cron Jobs, cPanel, API Integrations ✅ What I offer: Clean and maintainable code Strong communication and timely updates Full project ownership from start to finish Quick learning of any custom tools or workflows 📅 Availability: 8:00 AM EST – 4:00 PM PST (Can adjust based on project needs) Whether you need help building a project from scratch or upgrading an existing app, I’m ready to bring your vision to life. Let’s build something great together!