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Building something complex? I help companies architect, build, and scale systems that actually work — from first commit to 1M users. And I can prove exactly how I do it. Why Clients Hire Me After 74+ Upwork contracts and $200K+ delivered, I've learned that most projects fail for the same reasons: unclear scope, wrong architecture decisions early on, and vendors who say "yes" to everything. I do the opposite — I ask hard questions upfront so we don't discover problems in production. How I Work: AI-Augmented Development I don't just use AI tools — I've systemized them into a Multi-Agent Development Methodology: → Every decision documented and versioned (no tribal knowledge) → Full audit trail — see exactly how your project evolves → Real-time visibility into progress (not just status updates) → Clean handoffs — the next developer won't curse me What I Do → AWS Architecture & Infrastructure — Design, migration, optimization, security → Full-Stack Development — React, Angular, Node.js, Python, Java → Compliance Systems — HIPAA, SOC2, enterprise-grade security → IoT & Real-Time Data — AWS IoT Core, sensor networks, dashboards → Trading & Financial Systems — TradingView, Pine Script, algorithmic strategies Where I Add Most Value → Projects where "getting it right" matters more than "getting it cheap" → Systems that need to scale, comply, or integrate with complex infrastructure → Teams that want a technical partner, not just a code vendor → Rescuing projects that previous developers made a mess of → Teams who value documentation and full visibility The Numbers → 100% Job Success Score → Expert-Vetted status (top 1% of Upwork talent) → $200K+ earned on platform → 50+ developers in my agency for larger engagements → 22+ years building enterprise systems (Hewitt, Xerox, Cognizant) Certifications → AWS Solutions Architect – Professional → AWS Advanced Networking – Specialty → AWS Security, Cloud Economics, and Technical Professional Industries I've Built For Healthcare (HIPAA) · Fintech · SaaS · IoT · Insurance · Logistics · Manufacturing · Legal Tech How to Start Send me a message with: → What you're trying to build or fix → Your timeline → Any constraints I should know about I'll give you an honest assessment — including whether I'm the right fit.

I help SaaS platforms and enterprise applications design and implement secure and scalable Single Sign-On (SSO) and authentication systems using SAML, OIDC, OAuth, LDAP, and Kerberos. ✔ 500+ SSO integrations delivered ✔ Enterprise-grade identity systems ✔ Expertise in Auth0, Azure AD, Keycloak, and custom IdP development If your authentication system is critical to your business, I can help design and implement it correctly. I design and build custom Identity Providers (IdPs) and full authentication systems tailored to complex business requirements. If you're facing issues with authentication, SSO setup, or identity provider integration — I can help you design and implement a reliable, production-ready solution. ━━━━━━━━━━━━━━━━━━━ 🎯 I Can Help You With • SAML / OIDC SSO integration • Fixing broken authentication flows • Azure AD / Auth0 / Keycloak setup • Custom Identity Provider (IdP) development • LDAP / Active Directory authentication • Kerberos / SPNEGO (Windows SSO) ━━━━━━━━━━━━━━━━━━━ 🔐 SSO & Identity Expertise • SAML 2.0 (SSO, SLO, metadata, assertions) • OpenID Connect (OIDC) & OAuth 2.0 • Custom Identity Provider (IdP) development • LDAP / Active Directory integration • Kerberos authentication & SPNEGO (Windows Integrated Auth) • Multi-tenant authentication systems • MFA implementation & secure login flows Identity Providers: Auth0, Azure AD, Okta, Keycloak, Shibboleth, ADFS, Google Workspace, OneLogin, WSO2, Apereo CAS, SimpleSAMLphp ━━━━━━━━━━━━━━━━━━━ ☁️ Cloud & Serverless (Supporting Expertise) • AWS Lambda, API Gateway, Firebase, Azure Functions • Scalable backend architecture & microservices • CI/CD pipelines and cloud automation ━━━━━━━━━━━━━━━━━━━ 💻 Application Development (Supporting SSO Integrations) • ASP.NET MVC / .NET • Laravel / PHP • WordPress / CMS platforms I build secure applications with seamless SSO and API integrations. ━━━━━━━━━━━━━━━━━━━ 📱 Mobile Authentication Integration • iOS (Swift) & Android (Kotlin) • Secure login flows (OAuth/OIDC) • Backend + authentication integration ━━━━━━━━━━━━━━━━━━━ 🖥️ DevOps & Infrastructure • AWS, Azure, DigitalOcean • Linux / Windows Server • Nginx, Apache, IIS • SSL, deployment, scaling, and performance optimization ━━━━━━━━━━━━━━━━━━━ 🌟 Why Work With Me • Deep expertise in SSO & authentication systems • Proven experience delivering 500+ SSO integrations across SaaS and enterprise environments • Quick turnaround for SSO integrations and authentication fixes • Ability to build custom IdPs and full authentication flows • Strong enterprise authentication knowledge (LDAP, Kerberos, AD) • End-to-end delivery — from architecture to deployment ━━━━━━━━━━━━━━━━━━━ 💬 Let’s Talk Need help with: • SAML / OIDC SSO integration • Custom Identity Provider (IdP) development • LDAP / Active Directory authentication • Kerberos / SPNEGO setup • Fixing authentication issues • Identity provider setup (Auth0, Azure AD, etc.) Let’s discuss your requirements — I can help you implement a clean and scalable solution.

✅ Solution Architect | Full-Stack | DevOps | Cloud | AI/ML | LLM Apps | IoT Hi, I’m Niladri — a Solution Architect and Full-Stack Developer with 15+ years of experience helping startups, SaaS companies, and enterprises design, build, automate, and scale secure, production-ready software systems. Clients hire me when they need more than a coder. They need someone who can understand the business goal, design the right architecture, build the product, automate infrastructure, integrate AI where it adds value, and keep the system scalable, maintainable, and cost-efficient. I can work as a senior engineer, architect, DevOps consultant, technical lead, or long-term technology partner. 📊 Skill Ratings DevOps & Cloud Architecture – ▓▓▓▓▓▓▓▓▓▒ 9.5/10 Solution Architecture – ▓▓▓▓▓▓▓▓▓▒ 9.5/10 Backend & API Engineering – ▓▓▓▓▓▓▓▓▓░ 9/10 AI/ML & LLM Integration – ▓▓▓▓▓▓▓▓░░ 8/10 IoT & Embedded Electronics – ▓▓▓▓▓▓▓▓░░ 8/10 Frontend Development – ▓▓▓▓▓▓▓░░░ 7/10 Mobile App Development – ▓▓▓▓▓▓▓░░░ 7/10 🚀 What I Can Help You With ☁️ Cloud, DevOps & Platform Engineering I design and deploy cloud-native infrastructure using AWS, Google Cloud, Azure, DigitalOcean, Heroku, and hybrid/on-premise systems. AWS: EC2, S3, RDS, Lambda, ECS, EKS, Fargate, DynamoDB, CloudFront, Route 53 GCP: Cloud Run, GKE, Firebase, Cloud SQL, BigQuery, Pub/Sub, AI APIs Azure: Functions, App Services, PostgreSQL, DevOps, cloud migration Core DevOps: Docker, Kubernetes, Helm, Terraform, CI/CD, GitHub Actions, GitLab, Jenkins, Bitbucket Pipelines, monitoring, backups, security hardening, high availability, and cost optimization. 🤖 AI/ML, LLM Apps & Automation I help businesses integrate AI into real products and workflows: LLM applications, OpenAI/AWS AI/Google AI integrations, RAG knowledge-base systems, AI chatbots, document processing, vector search with PostgreSQL/pgvector, recommendation engines, predictive analytics, and workflow automation. My focus is not just adding AI features — I design AI systems that are useful, secure, measurable, and practical. 💻 Full-Stack Web Development I build scalable web applications with clean architecture and maintainable code. Backend: Node.js, NestJS, Express, TypeScript, Python, Django, Flask, FastAPI, Java/Spring Boot Frontend: React.js, Next.js, Vue.js, Angular, admin dashboards, SaaS portals Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, MariaDB, MS SQL I focus on API performance, database design, authentication, authorization, security, testing, and maintainability. 🔗 API Development & SaaS Integrations I build APIs, webhooks, integration layers, and event-driven systems. Experience includes Amazon MWS/SP API/Ads API, QuickBooks Online/Desktop, Xero, FreshBooks, HubSpot, Salesforce, Zoho, Zendesk, Stripe, Twilio, Slack, Asana, REST, GraphQL, Webhooks, Microservices, and Event-driven Architecture. 📱 Mobile App Development React Native, Flutter, and PWAs with real-time chat, push notifications, payments, GPS tracking, offline sync, dashboards, and cloud backend integration. 🌐 IoT & Embedded Systems Embedded Linux, Buildroot, Arduino, ESP, Raspberry Pi, RTOS, FPGA, Petalinux, RFSoC, ZCU111, XRF8, I2C, SPI, UART, TCP, MQTT, sensor integration, and firmware-to-cloud-to-dashboard platforms. 🧠 Technical Leadership I support teams with architecture, cloud review, code/PR review, CI/CD setup, security planning, database/API design, bottleneck resolution, team grooming, scalability planning, and engineering best practices. 🌟 Why Clients Hire Me ✔️ 15+ years of hands-on software, cloud, DevOps, AI, and IoT experience ✔️ Strong mix of architecture, development, automation, and technical leadership ✔️ Ability to work independently or lead a technical team ✔️ Experience with SaaS, fintech, e-commerce, AI, cloud, API integrations, and IoT systems ✔️ Practical mindset: I design systems that can be built, deployed, scaled, and supported ✔️ Strong focus on clean code, security, documentation, automation, and maintainability I don’t just deliver code — I help you build a reliable product, scalable platform, and stronger technical foundation. ⭐ Client Feedback “Nil headed up a full backend solution including RESTful API and AWS cloud setup. He is knowledgeable, understands your needs, and delivers creative, high-quality solutions.” — Douglas Stirling “Nil is an excellent developer — quick to grasp requirements, easy to communicate with, and always delivers well-tested, first-class work.” — Sat Sindhar “Niladri is a highly experienced full-stack programmer with thorough knowledge across technologies. I am extremely satisfied with his services.” — Vishal Agarwal “Niladri is the best at what he does. Very easy to communicate with, delivers flawless work, and provides great support after the job is done.” — Muzaffer Selimbeyoglu 📌 Background Degree in Computer Science CCNA | RHCE Diploma in Computer Hardware & Electronics GitHub Portfolio: fuzonmedia

𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗔𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 | 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 | 𝗶𝗢𝗦 · 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 · 𝗪𝗲𝗯 I build mobile and web applications using React Native, delivering clean, stable, and scalable solutions. With 5+ years of experience, I have worked on projects across fintech, healthcare, e-commerce, SaaS, logistics, education, fitness, real estate, marketplaces, and more. Beyond mobile development, I help businesses integrate AI into their products and automate business workflows using modern LLMs, AI agents, and automation platforms. I handle the full picture from React Native development and backend architecture to AI integrations, workflow automation, cloud deployment, and long-term maintenance so you don't have to coordinate between multiple developers. Technology Stack: React Native, JavaScript, TypeScript, React, Expo, React Native CLI, Android, iOS, React Native Web, Cross-platform Development, Responsive UI, Material Design, NativeBase, React Native Paper, Clean Architecture, MVVM, Redux Toolkit, Redux, Zustand, MobX, React Query, Context API AI & Automation: OpenAI (ChatGPT, GPT-4, GPT-5 APIs), Claude (Anthropic), Gemini, AI Agents, AI Chatbots, LLM Integration, Retrieval-Augmented Generation (RAG), MCP (Model Context Protocol), Prompt Engineering, Function Calling, AI Workflow Automation, Intelligent Document Processing, OCR, Speech-to-Text, Text-to-Speech, Conversational AI, Semantic Search, Recommendation Systems, Vector Databases, Pinecone, Weaviate, ChromaDB, LangChain, LangGraph, CrewAI, AutoGen, AI-powered Customer Support, AI Assistants Automation Platforms: n8n, Make (Integromat), Zapier, Pipedream, Webhooks, API Automation, CRM Automation, Email Automation, Lead Generation Automation, Workflow Orchestration, Event-driven Automation Backend & APIs: Node.js, Python, FastAPI, Flask, Express.js, NestJS, REST APIs, GraphQL, WebSockets, Microservices Databases: Firebase, Firestore, Firebase Realtime Database, Supabase, MongoDB, PostgreSQL, MySQL, SQLite Cloud & DevOps: AWS, Google Cloud, Firebase Cloud Functions, Firebase Cloud Messaging (FCM), Docker, CI/CD, App Monitoring, Crash Reporting, GitHub Actions Domain Experience: AI & SaaS Applications, Fintech Platforms, Healthcare Solutions, Food Delivery Apps, Marketplace Platforms, E-commerce Stores, CRM Systems, Dating Apps, Social Networking Apps, Taxi & Ride Booking Apps, Service Marketplace Apps, Education Platforms, Fitness Apps, Real Estate Solutions, Enterprise Applications Capabilities: React Native mobile app development, Cross-platform application development, Expo development, AI-powered applications, AI Automation, AI Agent Development, Workflow Automation, Backend development, API integration, Firebase development, Supabase development, Payment Gateway Integration, Real-time Chat, Voice & Video Calling, Google Maps Integration, Live Tracking, Authentication Systems, Push Notifications, In-App Purchases, Performance Optimization, Bug Fixing, App Store Deployment, Google Play Deployment, Long-term Maintenance Why Clients Choose Me: I build clean, scalable, and production-ready applications with a strong focus on performance, security, and maintainability. Whether it's a React Native application, an AI-powered product, or an automated business workflow, I focus on delivering solutions that are reliable, efficient, and built for long-term growth. I communicate clearly, deliver on time, and understand both the technical and business side of every project. Whether you need a new MVP, AI features, AI automation, backend services, React Native development, Firebase integration, Supabase development, or long-term development support, I can help. {Let's Build Your App the Right Way} Your idea deserves a scalable, reliable, and high-quality application built for long-term success. If you need a React Native developer who can build mobile or web applications, integrate AI features, automate business workflows, develop AI agents, build backend services, work with Firebase or Supabase, or manage deployment from start to finish, I'd be happy to help. Just send me an invitation, share your idea, and let's discuss the best way to bring it to life. You're not just hiring a developer. You're working with someone focused on building reliable, secure, production-ready applications and AI solutions that create real business value. Cheers...

🥇 As an AWS Serverless Technology Professional and Expert Developer, I specialize in creating scalable, secure, and cost-efficient cloud solutions using AWS services. With extensive experience in Amazon q, AWS Lambda, API Gateway, DynamoDB, and the Server less Framework, I transform complex requirements into seamless and robust applications. For instance, I recently developed a server less web application for a client, utilizing Amazon q, AWS Lambda and API Gateway to create a highly scalable backend, and DynamoDB for a flexible, no-SQL database. Another project involved migrating a legacy system to a serverless architecture, resulting in a 50% reduction in operational costs and improved performance. 👉 I am dedicated to continuous learning and improving my skills to better serve my clients. Committed to delivering top-notch solutions on Upwork, I am here to help you achieve your project goals with precision and care. 🛠️ - Amazon Q, AWS BedRock, Amplify, CDK, AWS Lambda, Lambda Resolver, Lambda Concurrency, ESC, Fargate - CI /CD - AppSync, GraphQL - No SQL: DynamoDB, - RDS: Aurora, Postgres, Mysql - AWS EBS - AWS S3 - AWS Cognito( federated identities: Okta, Microsoft AD, SSO, Google, Facebook, Apple) - AWS Ec2, VPC - AWS Load Balancing - AWS Cloud Watch - AWS Autoscaling - AWS IAM - AWS SQS, SNS - AWS Route 53 - SAM 📊 Use Cases: Serverless Web Application: Developed a serverless web application for a client using AWS Lambda and API Gateway for a highly scalable backend, and DynamoDB for a flexible, no-SQL database. Legacy System Migration: Migrated a legacy system to a serverless architecture, resulting in a 50% reduction in operational costs and improved performance. 🧭 Real-Time Data Processing: Implemented a real-time data processing pipeline with AWS Kinesis, Lambda, and S3, enabling the client to process and analyze streaming data efficiently. 🚀 Automated Infrastructure: Created automated CI/CD pipelines using AWS CodePipeline and CodeBuild, significantly speeding up the deployment process and reducing manual errors.

Hi, I’m Mehul, a Top-Rated-Plus AWS Expert and DevOps Engineer who helps startups and founders launch and scale reliable SaaS, healthcare, and fintech platforms on AWS. ✅ Top 1% Upwork Freelancer ✅ 125+ Projects Completed ✅ 7000+ Hours Worked ✅ Top-Rated Plus on Upwork ✅ AWS Certified Developer - Associate 🏆 🏆 I’ve designed systems serving 2M+ users, built HIPAA-compliant healthcare apps, and helped teams cut cloud bills by 30–40 % without compromising performance. My focus is simple: build it once, make it scale, and keep your costs under control. ✅ What I Do ➥ Architect secure, serverless AWS setups using Lambda, API Gateway, and DynamoDB ➥ Deploy AI Agent to AWS with Bedrock ➥ Automate deployments with Terraform, GitHub Actions, and CodePipeline ➥ Optimise infrastructure for speed, uptime, and cost 💡 Why Work With Me ➥ 7+ years in AWS DevOps ➥ $300 K+ earned on Upwork, 100 % Job Success Known for clear communication, quick delivery, and long-term reliability Let’s connect if you’re building a product and want an AWS setup that’s secure, scalable, and easy to manage so you can focus on growing your business while I handle the cloud. Experienced with Amazon EC2, S3, RDS, Aurora, DynamoDB, ElastiCache, CloudFront, API Gateway, Step Functions, EKS, Fargate, CodePipeline, CodeBuild, CloudWatch, Grafana, Prometheus, GuardDuty, Security Hub, AWS Organisations, SCPs, KMS, Secrets Manager, IAM, WAF, Route53, ACM, Amplify, SageMaker, Bedrock, OpenSearch, and CloudFormation. Python, Bash, TypeScript, Node.js, Docker, Kubernetes, GitHub Actions, GitLab CI, Jenkins, n8n, Zapier.