🔰 𝟏𝟒+ 𝙔𝙚𝙖𝙧𝙨 𝙤𝙛 𝙀𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚 🏅 𝙏𝙤𝙥 𝙍𝙖𝙩𝙚𝙙 𝙊𝙣 𝙐𝙥𝙬𝙤𝙧𝙠 🤝 𝙊𝙥𝙩𝙞𝙢𝙪𝙢 𝙅𝙤𝙗 𝙎𝙪𝙘𝙘𝙚𝙨𝙨 𝙍𝙖𝙩𝙚 With over a decade of mastery, I navigate the digital universe as a 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with a skillset that spans 𝐏𝐲𝐭𝐡𝐨𝐧 𝐟𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 (full-stack, micro-framework, and asynchronous), 𝐋𝐋𝐌𝐬, 𝐎𝐩𝐞𝐧𝐀𝐈 𝐀𝐏𝐈𝐬, Advanced 𝐀𝐈/𝐌𝐋 technologies, and more. My diverse tech stack includes: ✨ 𝐆𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐌𝐨𝐝𝐞𝐥𝐬 & 𝐓𝐨𝐨𝐥𝐬: GPT-4o/4.1/5/4 Turbo/3.5 Turbo | o3-mini | Claude 3.5 | Claude 3.5 | Gemini 1.5 Pro & Flash | DeepSeek V2/V3/Coder/R1 | LLaMA 3 | Command R+ | Grok-1.5 | DALL·E 3 | Stable Diffusion XL/3 | Midjourney v6 | Runway Gen-3 | LangChain | LlamaIndex | AutoGen | CrewAI | Ollama | LM Studio | GPT4All | Modal | vLLM | TGI | Azure OpenAI | AWS Bedrock | Pinecone ✨ 𝐀𝐈/𝐌𝐋 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: TensorFlow | PyTorch | Scikit-learn | Pandas | Numpy | Matplotlib | Hugging Face Transformers | Diffusers | Fastai ✨ 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐖𝐞𝐛 𝐒𝐜𝐫𝐚𝐩𝐢𝐧𝐠: Zapier | Make | Apache Airflow | Selenium | Beautiful Soup | Playwright | Puppeteer | Pipedream | Activepieces ✨𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: Python (Flask, Django, FastAPI) | Express.js | Machine Learning (ML) | AI | Microservices | WebSockets ✨ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: React | Next.js | Vue.js | JavaScript | TypeScript | Solid.js ✨ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB | PostgreSQL | MySQL | Apache Cassandra | AWS DynamoDB | Firebase ✨ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐒𝐭𝐲𝐥𝐢𝐧𝐠: Tailwind CSS | Chakra UI | Shadcn UI | Radix UI | DaisyUI ✨ 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 & 𝐇𝐨𝐬𝐭𝐢𝐧𝐠: Vercel | Railway | Netlify | Render | Fly io | Cloudflare Pages | Docker | AWS ECS/Fargate ⏩ 𝐀𝐈/𝐌𝐋 𝐓𝐞𝐜𝐡𝐧𝐢𝐪𝐮𝐞𝐬: Supervised & Unsupervised Learning | Neural Networks | Natural Language Processing (NLP) | Large Language Models (LLMs) | Multi-Agent Orchestration (AutoGen, CrewAI) | Open Source LLM ✅ 𝐀𝐝𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐏𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐢𝐞𝐬: WebSocket | GraphQL | Docker | Redis | Nginx | Git | GitHub | Bitbucket | Agile/Scrum | Trello | Jira | Bash/Shell Scripting | RESTful APIs | 🌐 𝐃𝐨𝐦𝐚𝐢𝐧 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: Successfully delivered end-to-end solutions across diverse industries, including E-commerce, Healthcare, Travel, Education/LMS, FinTech, Cybersecurity, Food Delivery, Taxi Booking, and more. Looking forward to a long-term business relationship with you!

I help companies build reliable AI-powered automation systems, browser automation platforms, and scalable SaaS infrastructure. Over the past 10+ years, I have designed and developed production systems involving: - AI agents & LLM integrations - Browser automation (Playwright/Puppeteer/Selenium) - Web scraping & anti-bot systems - SaaS platforms - FastAPI & Python backend systems - AWS serverless infrastructure - Workflow automation - CRM & API integrations - Data pipelines and large-scale processing I specialize in solving difficult engineering problems where stability, scalability, and reliability matter. My experience includes: - Large-scale browser automation systems - AI-powered SaaS platforms - High-volume web scraping infrastructure - Workflow and CRM automation - Cloud-native AWS architectures - Real-time automation systems - Dockerized production environments - API orchestration and integrations - RAG and LLM-powered applications Technical stack: Python, FastAPI, Playwright, Selenium, AWS Lambda, DynamoDB, Docker, Kubernetes, PostgreSQL, MongoDB, Redis, OpenAI APIs, LangChain, Serverless Framework, React, Node.js I am particularly effective on projects involving: - unstable automation systems - scraping infrastructure - AI integrations - browser reliability engineering - SaaS architecture - scaling and optimization - workflow automation - production debugging I approach projects as long-term engineering partnerships and focus on delivering systems that are maintainable, scalable, and robust in production.

I run a DevOps agency helping SaaS companies and IT businesses scale faster by providing senior DevOps engineers who optimize cloud infrastructure, accelerate deployments, and ensure production stability at scale. Our DevOps team partners with engineering leaders who need reliable, secure, and cost-efficient cloud systems — without hiring and managing an in-house team. Our engineers specialize in designing, building, and maintaining secure and scalable cloud environments across AWS, Microsoft Azure, and Google Cloud Platform (GCP). Whether you're starting from scratch or managing a complex multi-cloud setup, we architect AWS-native and cross-cloud solutions that are resilient and production-ready. → Cloud Infrastructure & Migration We handle end-to-end cloud infrastructure design and cloud migration projects — moving legacy systems to AWS, Azure, or GCP with zero disruption to your business. Our DevOps engineers assess your existing architecture, build a migration roadmap, and execute the migration while maintaining security, performance, and compliance throughout every phase. Whether it's a lift-and-shift to AWS or a full re-architecture on GCP, we own the migration end to end. → DevOps & CI/CD Automation We design and implement robust CI/CD pipelines using GitHub Actions, GitLab CI, Jenkins, and ArgoCD — reducing release cycles from weeks to hours. Our GitOps-based CI/CD delivery model ensures consistent, auditable deployments with full automation of build, test, and deploy workflows, eliminating manual processes and human error across every cloud environment. Every DevOps engagement includes CI/CD as a foundation, not an afterthought. → Infrastructure as Code (IaC) & Configuration Management We manage all cloud infrastructure through Terraform and Ansible, ensuring predictable, repeatable, and version-controlled IaC environments. Terraform modules are written to be reusable across AWS, Azure, and GCP — making Terraform the single source of truth for your infrastructure. IaC practices allow your team to scale confidently and roll back safely when needed, with Terraform state managed securely in remote backends. → Kubernetes & Container Orchestration Our DevOps engineers build and operate containerized systems using Docker and Kubernetes, supporting high-load, distributed applications. From Kubernetes cluster setup on AWS EKS, Azure AKS, or GCP GKE, and Helm chart management to Docker-based autoscaling and multi-tenant workloads — we make Kubernetes work reliably in production. Docker image optimization and Kubernetes resource tuning are part of every engagement. → Security & Compliance (DevSecOps) Security is embedded at every layer of our DevOps work. We implement cloud security best practices across AWS, Azure, and GCP, integrate security scanning into CI/CD pipelines, manage secrets with HashiCorp Vault, and support security compliance automation for SOC 2, HIPAA, and PCI-DSS requirements. AWS security configurations — IAM, VPC, Security Groups, GuardDuty — are applied from day one of every migration or infrastructure project. → Monitoring, Observability & Incident Response We set up full-stack monitoring and observability using Prometheus, Grafana, Datadog, and the ELK stack — giving your team complete visibility into cloud infrastructure health. Proactive monitoring and observability practices catch production incidents before they impact users, reducing downtime and keeping your Kubernetes and Docker workloads stable. Every AWS, Azure, and GCP environment we deliver includes monitoring as a core deliverable, not an optional add-on. 📌 Core Expertise - Cloud Platforms: AWS | Microsoft Azure | Google Cloud Platform (GCP) - DevOps & CI/CD: GitHub Actions | GitLab CI | Jenkins | ArgoCD - Containers & Orchestration: Docker | Kubernetes | Helm - Infrastructure as Code (IaC): Terraform | Ansible - Monitoring & Observability: Prometheus | Grafana | Datadog | ELK Stack - Security: HashiCorp Vault | Security Scanning | Compliance Automation - Cloud Migration: Legacy-to-cloud | Multi-cloud | Lift-and-shift | Re-architecture 📌 Why clients choose us: ✅ Senior DevOps engineers with 10+ years of average hands-on AWS, Azure, and GCP production experience ✅ Full-cycle ownership — from cloud architecture and Terraform design to ongoing monitoring and support ✅ Proven track record in cloud migration, Kubernetes adoption, and CI/CD transformation ✅ Reduced deployment time, lower AWS and cloud infrastructure costs, and fewer production incidents ✅ Transparent communication, clear IaC and Terraform documentation, and fast response times

I build scalable backend systems, AI-powered applications, and full-stack products that are designed for production, not just prototypes. 🚀 Senior Backend & AI Engineer | Top Rated Plus | 2,215+ Hours | 100% Job Success Over the past 5+ years, I've worked with startups, SaaS companies, and enterprise teams to build high-performance APIs, microservices, AI agents, ERP systems, fintech platforms, real-time applications, Shopify apps, and subscription-based products. I take ownership of projects from architecture and backend development to deployment, and when needed, I also build the frontend using React and Next.js. 💡 What I Can Help You Build ✔ Scalable Backend Systems with Node.js, NestJS, Express and TypeScript ✔ REST APIs, GraphQL APIs, Microservices and Event-Driven Architectures ✔ AI Agents, Multi-Agent Systems, RAG Applications and AI Chatbots using OpenAI, Gemini and Claude ✔ SaaS Platforms with Authentication, Role-Based Access, Billing and Admin Dashboards ✔ High-Performance PostgreSQL, Oracle, MySQL, MongoDB and Redis Architectures ✔ Real-Time Applications using Socket IO, BullMQ, Queues and WebSockets ✔ Stripe Checkout, Stripe Connect, Subscription Billing, Usage Billing and Payment Automation ✔ React & Next.js Applications with responsive dashboards and modern UI 🏆 A Few Projects I'm Proud Of 🚀 Led backend development for a complete migration of a legacy ERP system from Visual Basic to NestJS and Oracle for a NASDAQ-listed company. The platform includes inventory management, rentals, warehouse operations, logistics, barcode scanning, real-time synchronization and high-speed catalog search with zero downtime during migration. 🤖 Built KitchenCloud.AI, an Agentic AI platform powered by a multi-agent orchestrator routing requests across six specialized AI agents using NestJS, Gemini, ChromaDB, DragonflyDB, BullMQ, Mem0 and the Vercel AI SDK. 📈 Built backend systems for StockPe, a fintech platform serving more than 300,000 users and ranked #2 Product of the Day on Product Hunt. 📚 Developed Bookify.AI, a complete RAG-based SaaS platform allowing users to chat with documents using OpenAI streaming responses, vector databases, Stripe subscriptions and embeddable widgets. 🛍 Built Aura AI, an AI-powered Shopify application for GEO & AI Search using Remix, GraphQL and BullMQ. 🎥 Developed a large-scale creator platform capable of supporting approximately 50,000 concurrent live users using AWS EC2, Lambda, IVS, MediaConvert, SQS and other cloud services. 🛠 Technologies I Work With Backend Node.js, NestJS, Express, Laravel, PHP, Python, TypeScript, REST APIs, GraphQL, Microservices, BullMQ, Socket IO, Webhooks Frontend React, Next.js, TypeScript, JavaScript, Tailwind CSS, Shadcn UI, Material UI, Redux, Vue.js, Nuxt.js AI OpenAI API, Gemini, Claude, Agentic AI, Multi-Agent Systems, RAG, Vector Databases, ChromaDB, Mem0, Vercel AI SDK, AI Chatbots Databases PostgreSQL, Oracle, MySQL, MongoDB, Redis, DragonflyDB, ClickHouse, Supabase, Prisma, TypeORM, Typesense Cloud & DevOps AWS (EC2, Lambda, S3, IVS, MediaConvert, API Gateway, SQS, SNS, SES), Docker, Cloudflare, Vercel, DigitalOcean, GCP Payments & Shopify Stripe, Stripe Connect, Stripe Subscriptions, Razorpay, PayPal, Shopify Remix, Polaris, GraphQL Admin API, App Bridge 🤝 What You Can Expect Working With Me • Clean, scalable and maintainable code • Strong focus on performance and architecture • Clear communication and daily progress updates • Reliable delivery with attention to detail • Video walkthroughs during handover • Long-term support after project completion Whether you're looking for a Senior Backend Developer, Node.js Developer, NestJS Expert, AI Engineer, Full Stack Developer, React/Next.js Developer, Shopify App Developer or Stripe Integration Specialist, I can take ownership of your project from idea to deployment and help you build software that's reliable, scalable and built for long-term growth.

Full Stack Developer | Node | React | MERN | MEAN | Angular | Next | Express | Nest | Javascript | Typescript | Microservices | Mongo | Postgresql | AWS | Redis | Socket | Websocket | Onespan | GraphQL | Lambda | DynamoDB | Serverless | Git | Jira | Docker | S3 | AWS SNS | AWS SES | Email | Mocha | Chai | Jest | Twillio | Sequelize | REST Api | Strapi.io With over 13 years of industry experience, I bring a wealth of knowledge to the table as a seasoned and proficient Senior Full Stack Developer, adept in handling both frontend and backend web development. My versatile skillset spans a wide spectrum of technologies, including Laravel, CodeIgniter, NODE.js, PHP, React.js, Angular, Vue.js, and an in-depth understanding of JavaScript, HTML, and CSS. This extensive experience empowers me to excel in various development frameworks. As an accomplished Full Stack Developer, I possess the expertise and capability required to adeptly manage a diverse array of web application projects, ranging from MERN Stack, MEAN Stack, to PHP technologies, guaranteeing the delivery of exceptionally impressive results. Architecting and developing web applications with different JS frameworks:- • React.JS, Vue.JS, Angular.JS,Angular Universal, Angular material, Next.JS, Nest.JS, Express.JS, Redux.JS, Electron.js,Next.js,D3.js & Node.JS • Codignator,Laravel, PHP, Yii, Python, Django, Flask, RESTful API, GraphQL, WordPress Plugins Development, etc. • Developing Mobile Apps using React Native, Flutter, and Dart. • MySQL, PostgreSQL, Firebase, MongoDB, Redis, & Elastic search. • Customizing Web Apps, Mobile Apps, APIs • Docker & Vagrant. • Git, GitHub, & Bitbucket. • Strong HTML, CSS, JavaScript, TypeScript, jQuery,Tailwind CSS & Bootstrap. • Digital Ocean, Heroku, Netlify, Firebase, & Rackspace. • MERN Stack: MongoDB, Express.js, Reactjs, Node.js • MEAN Stack: MongoDB, Express.js, Angularjs, Node.js • Knowledge of web accessibility standards (WCAG) • Redux, Axios, Apollo, Async storage • Sockets, Cloud messaging, Chat, Camera, AR, Video, Audio • Firebase, Cloud Firerstore, Firebase Realtime database Other skills: - Code Management tool : GitHub, GitLab & BitBucket - AWS services: EC2, Lambda, S3, CloudFront, RDS, SES, SQS, SNS, Cloud Trail, Elastic Cache, Elastic Search - APIs: google maps, youtube API,Twilio API,Facebook, etc. - Building and consuming RESTful and GraphQL APIs - Knowledge of Backend API authentication and security - Version Control/Git: Proficiency in using Git for version control and collaboration with other developers. - DevOps: Understanding of DevOps principles and tools for continuous integration and continuous deployment (CI/CD). - Server Management: Knowledge of server configurations and hosting platforms (e.g., AWS, Heroku, DigitalOcean). - Testing and Debugging: Proficiency in writing unit tests, end-to-end tests, and debugging code effectively. - Security: Awareness of web security best practices and how to prevent common web vulnerabilities like Cross-Site Scripting (XSS) and SQL injection. - Front-end Tools: Familiarity with front-end build tools like Webpack, Babel, or Gulp. - Package Managers: Proficiency in using package managers like npm or yarn. - Mobile Development: Experience in mobile app development using frameworks like React Native or Flutter can be a bonus. Why me? - Problem-Solving: Ability to solve complex technical challenges. - Time Management: Meeting deadlines and managing multiple projects. - Agile and Scrum: Understanding of Agile methodologies and Scrum for project management. - Portfolio: Create a strong portfolio showcasing your past projects. Highlight your skills and versatility. - Certifications: Relevant certifications (e.g., AWS Certified Developer, Google Cloud Professional, Scrum Master) can add credibility. - Client Relationships: Building good relationships with clients is essential for repeat business and positive reviews. - Market Research: Keep an eye on market trends and demand for specific skills and technologies on Upwork. - Ongoing Support & Maintenance of Work - 6 Months Free Support After delivery. - The code will be transferred to your server upon project completion. Full Stack PHP Developer,MEAN Stack Developer,MERN Stack Developer,Full Stack PHP Developer with MEAN Experience, Full Stack PHP Developer with MERN Experience,Full Stack Web Development, Expert PHP Developer, MEAN Stack Development,MEAN Stack Developer,MERN Stack Development,MERN Stack Developer,PHP Web Development,PHP Frameworks,JavaScript Frameworks,MongoDB,Express.js,AngularJS,React.js,Node.js Moreover, I have hands-on experience with automation tools such as Zapier, Integromat, Khajabi, HubSpot, Ontraport, SIB, and more. Over the course of my career, I have worked on over 35+ APIs, successfully integrating and automating CRMs and applications using Webhooks and CronJobs. My portfolio also comprises over 55 PHP/Laravel CodeIgniter Websites/Apps. Full Stack PHP Developer!

I am an accomplished AWS Solutions Architect and Microsoft Professional with over 16 years of experience in system, network, and cloud engineering, and more than 8 years specializing in AWS cloud architecture and DevOps. I am excited to apply for this opportunity and help you design, secure, and optimize cloud solutions that directly support your business goals.| Throughout my career, I have delivered scalable, secure, and cost-efficient infrastructures using AWS services such as EC2, EKS, ECS, S3, RDS, IAM, Lambda, CloudWatch, Security Hub, GuardDuty, and Inspector. I also bring hands-on experience with Azure and GCP, and DevOps tools including Docker, Kubernetes, Terraform, and Jenkins, enabling fully automated and reliable deployments.
 I have strong experience in:
 - Cloud migrations and hybrid architectures across AWS, Azure, and on-prem environments. - Infrastructure as Code with Terraform for repeatable, version-controlled deployments. - Cloud cost optimization (FinOps) using rightsizing, auto scaling, Savings Plans, and AWS Cost Explorer to reduce spend without compromising performance. - Event-driven systems and messaging using RabbitMQ, SQS, SNS, and EventBridge. - IoT solutions built with AWS IoT Core for secure device connectivity and real-time data processing. - Serverless and AI integrations using AWS Lambda and AWS Bedrock. - Security and compliance are central to my work. I have actively contributed to SOC 2 remediation, implementing audit fixes across access controls, logging, monitoring, encryption, and change management. I also coordinate with authorized VAPT teams to conduct penetration testing and have hands-on experience remediating vulnerabilities for both products and client environments, ensuring strong security posture and audit readiness. - With a strong background in Linux administration, monitoring with CloudWatch and DataDog, and CI/CD automation, I focus on building environments that are not only technically sound but also easy to operate and scale.
 I am a proactive communicator who values clear documentation, timely updates, and close collaboration. My goal is to become a trusted partner who helps you achieve reliable infrastructure, improved security, and optimized cloud costs.
 I would welcome the opportunity to discuss your requirements and demonstrate how my experience can add value to your project. Thank you for your time and consideration.
 Warm regards, Hariprasad B AWS Solutions Architect | Cloud & DevOps Engineer

AWS Certified Solutions Architect – Professional With over 24 years of experience in Information Technology, I operate at the intersection of Cloud Engineering, DevOps Transformation, and Software Development. I design and deliver secure, scalable, and production-grade systems that align business objectives with modern cloud-native architectures. My background spans enterprise infrastructure, automation engineering, distributed systems, and full-stack application support — enabling me to approach solutions from both an architectural and implementation perspective. ☁ Cloud Architecture & Engineering As a senior cloud professional, I design highly available, fault-tolerant, and secure AWS environments aligned with the AWS Well-Architected Framework and CIS compliance standards. Core AWS Expertise: * Identity & Governance: IAM policy engineering, RBAC models, multi-account strategies * Compute & Scalability: EC2, Auto Scaling Groups, ECS, Lambda * Networking: VPC architecture (multi-tier), ALB, secure subnet design, API Gateway * Storage & Databases: S3, RDS, DynamoDB, Redshift * Monitoring & Audit: CloudWatch, CloudTrail, AWS Config * Messaging & Integration: SNS, SQS, event-driven architectures * Data Services: AWS Glue, Redshift pipelines I specialize in architecting secure cloud foundations that support performance, cost optimization, and long-term operational resilience. ⚙ DevOps Engineering & Automation I implement DevOps practices that streamline delivery pipelines and improve deployment reliability. Capabilities include: * Infrastructure as Code (Terraform, CloudFormation) * CI/CD pipelines (CodePipeline, CodeBuild, CodeDeploy, Jenkins) * Automated environment provisioning * Blue/Green and rolling deployment strategies * Docker containerization * Kubernetes and ECS orchestration * Python and PowerShell automation scripting * Ansible configuration management My approach emphasizes reproducibility, observability, and DevSecOps integration. 💻 Software Development & Application Engineering Beyond infrastructure, I bring strong software engineering experience that allows me to bridge the gap between development and operations. Experience includes: * Backend development using Python * API design and integration * Event-driven serverless applications * Database design and optimization * Secure authentication and access control models * Application deployment automation This dual capability ensures that the infrastructure and application layers are designed cohesively rather than in silos. 🔐 Security & Compliance Focus Security is embedded across architecture and delivery: * Least-privilege IAM enforcement * Network segmentation and firewall controls * AWS Inspector integration * Compliance monitoring and audit logging * Risk management aligned with CIS standards 🌍 Global Project Delivery I have delivered complex cloud and platform engineering solutions for clients in the United States and internationally. My engagements consistently focus on: * Scalability and high availability * Performance and cost optimization * Security-by-design implementation * Operational excellence and long-term maintainability If you are seeking a senior-level Cloud, DevOps, and Software Engineering professional who can architect, automate, and implement end-to-end solutions — I bring the strategic thinking and technical depth required to execute at enterprise scale. I collaborate closely with clients to ensure technical precision, transparency, and measurable outcomes from design through production.

IoT Consulting, IoT solution development, IoT Prototype development, IoT Minimum Viable Product ( MVP ) development since 2014. 100+ IoT projects completed Served clients from over 20 countries Over 30000 hours in IoT projects With over a decade of experience and a proven track record of delivering 100+ successful IoT projects, we're your partners in innovation. Our team of IoT enthusiasts, embedded engineers, and web/mobile app developers has successfully transformed complex ideas into tangible IoT solutions across diverse industries. We have helped clients optimize operations, reduce costs, and drive growth in a variety of industries. Sensorvision IoT Platform: Our customizable platform excels in device management and data visualization, providing actionable insights. We specialize in IoT Development with the following technologies - ESP32, LoRa, LoRaWAN, BLE, Particle, Mobile app development with React Native IoT use cases - IoT enabled product development, Energy monitoring and management, High value asset monitoring and tracking, Industrial condition monitoring, Smart farming, Hydroponics, Irrigation control, IoT building automation, Smart garments, Rule-based alert systems The IoT applications we have developed used: Hardware platforms used – Particle (Electron, Argon, Boron, Xenon) ESP(ESP8266, ESP32) STM 32 nRF 52 Arduino Raspberry Pi, ATmega and ARM Pycom Controllers Communication networks - Wi-Fi and Cellular (GSM/GPRS) Bluetooth and BLE LoRa, LoRaWAN and LPWAN Zigbee and Zigbee Mesh BACnet and Modbus Sigfox, NRF and MRF transceivers and Ethernet connections. Cloud services - Integration established using HTTP and MQTT protocols AWS cloud - EC2, S3, SNS, AWS IoT, AWS Greengrass, AWS Lambda, Cognito and RDS & Dynamo DB. Azure IoT Particle Device Cloud Google Cloud ThingsBoard IBM Bluemix Clients’ custom cloud platforms Web and Mobile App Development - LAMP, MEAN & MERN stacks Core Technologies – HTML, CSS and JavaScript JavaScript – Node.js, Angular.js, React.js, Vue.js, React Native .NET, Python and Node-RED Ionic and Native App Development Actuators - Solenoid Valves, Relays and LEDs. Hardware communication protocols - UART, SPI, I2C, USART, RS232, RS485, 1-Wire. Sensors Used – GPS based tracking solutions with additional sensor integration IMU sensors (Accelerometer, Gyrometer, Magnetometer) Environmental sensors (Thermocouple, Dht22, Lm35, DS18B20, BMP280, Rain sensors, Leaf wetness sensor, Soil moisture sensor, Water level, Water flow, Ambient light, LDR) Proximity sensors (Ultrasonic, IR, PIR) Detection sensors (Contact, Level, Hall effect sensor, Reed switch, Limit switches) Air quality sensors (OMRON, Sensiron, Co2 Sensors, Dust sensor, VOC, MQ135, CCS811) Vibration sensors, Vibration sensor switch, Tilt sensors Motion sensors (ADXL345, GY521)

As a Top Rated Plus Python Full stack developer, I help startups and product teams bring backend-heavy, modern web applications to life. My work spans from product ideation and architecture to automation, AI integration, and ongoing performance tuning. My stack includes Python (FastAPI, Django, Flask), React, Next.js, NestJS, PostgreSQL and AWS, enriched with scalable data pipelines, monitoring, and automation tools. With over 9+ years of experience and a 100% Job Success Score, I’ve led and delivered more than 40 web apps and five large-scale platforms with high concurrency. ✅ A tech Partner from Architecture to Deployment. Clients work with me because I don’t just code features, I architect scalable, cloud native systems that require minimal oversight. ✔️ Frontend: Next.js, React, Tailwind CSS, SSR/CSR, reusable UI libraries ✔️ Backend: Python, FastAPI, Django, Flask, NestJS, REST APIs, PostgreSQL, MongoDB, Redis ✔️ Cloud: AWS (Lambda, EC2, S3, Step Functions), Docker, GitHub Actions ✔️ Automation & AI: OpenAI API, Langchain, LLM, Make, Zapier, n8n, RAG Agents, AI Agents, Generative AI I’ve also led and mentored engineering teams up to 45 developers, helping deliver across sprints while balancing performance, timelines, and quality. 🏆 Highlighted Work & Outcomes ✔️ Frontend Engineering (React + Next.js) Built fully responsive interfaces using React and Next.js, optimizing for performance and API sync with FastAPI based backends. ✔️ Scalable API Infrastructure (Python, FastAPI) Refactored a high-load backend to handle massive traffic spikes using FastAPI, Redis caching, and PostgreSQL. Supported mission-critical uptime for end users. ✔️ Retention-Driven Feature Delivery. Built backend features that improved session time and user retention in a high-growth mobile app com, bining Redis-based response optimization with async jobs. ✔️ AI Feedback Engine with OpenAI API. Built a GPT-driven evaluation engine for a learning platform. Reduced manual grading efforts and added dynamic feedback for students. ✔️ Cloud Automation & ETL Pipelines. Designed serverless pipelines using AWS Lambda and Step Functions to transfer and transform millions of files with isolated, scalable logic. ✔️ Monitoring & SLA Tools Integrated ELK stack, Grafana, and PagerDuty into production systems to track uptime, detect anomalies, and support SLAs for enterprise clients. 🎯 Technical Stack & Core Skills ✔️ Frontend Next.js, React.js, TailwindCSS, PWA, SSR/CSR ✔️ Languages & Frameworks Python, FastAPI, Django, Flask, Node.js, JavaScript ✔️ Backend & Databases RESTful APIs, OAuth2, PostgreSQL, MongoDB, Redis Celery/RQ task queues, ETL pipelines, and background jobs ✔️ Cloud & DevOps AWS Lambda, EC2, S3, Step Functions, EventBridge, CloudWatch, Supabase Docker, GitHub Actions, CI/CD pipelines ✔️ Automation & AI OpenAI API, Langchain, GPT-4/4o, Prompt Engineering RAG pipelines, Agent flows, n8n, Zapier, Make com, Webhooks, Gen AI ✔️ Monitoring & Performance ELK, Grafana, New Relic, PagerDuty Async processing, caching, load testing, and SLA compliance 🎯 Domains I’ve Worked In ✔️ FinTech: Built backend APIs, fraud prevention, trading platforms in Python, FastAPI, Django, Celery, grafana, AWS. ✔️ EdTech: GPT integrations, adaptive learning tools using FastAPI, GPT API, Langchain, n8n ✔️ LegalTech: Scalable OCR + NLP processing using TensorFlow, Custom pipelines, Vector database storage ✔️ SaaS: Multi-tenant platforms, automation systems using React, Python, Next.js, Nest.js, AWS, FastAPI, Stripe, Oauth. 🎯What Sets Me Apart ✔️ Proven experience delivering complex platforms from scratch ✔️ 15M+ user databases, multi-cloud infrastructure, scalable patterns ✔️ Balanced blend of backend depth and frontend precision ✔️ End-to-end ownership: architecture, infra, dev, monitoring Let’s Build Something That Scales If you’re looking for a developer who can own the backend, integrate AI, and bring reliable systems to life, I’d love to collaborate. Send me an invite and let’s take your product to the next level

Hi, I’m Marc Ettl, a seasoned software engineer and designer with 8+ years of experience delivering high-quality enterprise systems, architecture and full stack development. What I do best: - LANGUAGES: JavaScript, TypeScript, Python, PySpark, Java, PHP, Ruby, Rust, Solidity, Solana, Ethereum - FRAMEWORKS: React/React Native, Vue, Next.js, Node.js, Django, Flask, Spring Boot, Laravel .NET - DATABASES: MySQL, PostgreSQL, DynamoDB, MongoDB, Firebase, Supabase - TECHNOLOGIES: Docker, Jenkins, Kubernetes, AWS, Azure DevOps, GitHub Actions, CI/CD Languages: - English - German Let’s bring your ideas to life with smart design and clean code.