MD Naqeebul I.
Senior Web and Mobile Engineer | Web | Mobile | Cloud | POS | SaaS
With over 7 years of practical experience, I specialize in building, scaling, and maintaining high-performance web and mobile applications that solve real business challenges. Whether you're launching a robust MVP or evolving an enterprise-grade product, I deliver scalable and secure technical solutions aligned with your business objectives. Core Expertise: 1. Web Development: React.js, Next.js, Angular, Vue.js, Node.js, Django, Laravel 2. Mobile Development: Flutter, React Native, Swift, Kotlin (iOS and Android) 3. Cloud Platforms: AWS, Azure, Google Cloud, Firebase, Supabase 4. SaaS & Multi-Tenant Systems: Subscription logic, role-based access, scalable architecture 5.POS Development: Custom POS systems with hardware integrations (printers, barcode scanners, EMV), real-time and offline sync 6.API Integrations: RESTful APIs, GraphQL, Stripe, Twilio, Google APIs, and other third-party systems 7.DevOps & CI/CD: Docker, Kubernetes, GitHub Actions, serverless functions, monitoring pipelines 8.Databases: PostgreSQL, MySQL, MongoDB, Firestore, and Redis Key Deliverables: #Architect scalable and secure platforms for long-term maintainability #Write clean, well-documented, and testable code following modern best practices #Collaborate across cross-functional teams including product owners and designers #Implement user-friendly interfaces and seamless user experiences for both web and mobile #Optimize performance for speed, reliability, and responsiveness across devices Selected Project Highlights: ===================== 1. Designed and delivered a real-time POS solution with offline-first capabilities for a nationwide retail chain 2. Built and scaled a SaaS appointment scheduling system servicing over 10,000 active monthly users 3. Developed a hybrid mobile application with GPS-based workforce tracking and QR code integration 4. Implemented a franchise inventory and multi-location reporting platform integrated with cloud analytics Toolset and Workflow: ================ #Figma, Jira, Trello, Git, Docker, Postman, Firebase, AWS Lambda, Supabase, Stripe, and other modern development tools.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $3k
$3k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 17% in JavaScript
Ranked by MRR among everyone on Upwork with the skill.
- #42Cloud Services232 freelancers · 🇮🇳 #5Top 18%🇮🇳#5 of 47
- #48Point of Sale & Payment Systems187 freelancers · 🇮🇳 #12Top 26%🇮🇳#12 of 43
- #52Enterprise Software Development180 freelancers · 🇮🇳 #17Top 29%🇮🇳#17 of 67
- #134Database Development567 freelancers · 🇮🇳 #31Top 24%🇮🇳#31 of 108
- #164Native App Development833 freelancers · 🇮🇳 #48Top 20%🇮🇳#48 of 317
- #379Microservice2,217 freelancers · 🇮🇳 #103Top 17%🇮🇳#103 of 617
- #1,627SaaS6,440 freelancers · 🇮🇳 #240Top 25%🇮🇳#240 of 940
- #1,697Mobile App Development8,511 freelancers · 🇮🇳 #530Top 20%🇮🇳#530 of 2,697