From concept to tested prototype, I design high-performance PCBs and embedded systems for startups, engineers, and product teams who need results that work the first time. With 8 years of experience in embedded systems and hardware design, I specialize in creating production-ready electronics that are efficient, reliable, and built for scale. Whether you're developing a new product or improving an existing design, I bring the technical expertise and problem-solving mindset to get it done right the first time. 💡 What I Offer: 🔹 Embedded System Development: ARM Cortex, STM32, ESP32 🔹 Advanced PCB Design: From 2-layer to complex multilayer boards with BGA, RF, and high-speed signals 🔹 Cost-Effective Engineering: Focused on value without compromising quality 🔹 Rapid Prototyping: Helping you move from idea to working prototype quickly 🔧 Core Technical Skills: ✔️ Analog & Power Circuit Design: LED drivers, SMPS, sensor interfacing ✔️ Motor Control & Drive Systems ✔️ Signal Integrity & EMC/EMI-Conscious Design ✔️ Communication Protocols: RS232, RS485, I2C, SPI, UART, CAN ✔️ Firmware Development: Embedded C/C++ for real-time applications 🛠️ Tools & Platforms I Work With: 👉 Altium Designer – Industry-standard PCB design 👉 LTspice – Analog simulation & validation 👉 Proteus – Embedded system simulation 👉 Signal integrity tools and EMI/EMC testing preparation 🚀 Why Work With Me? ✨ Proven record of delivering on time and exceeding expectations ✨ Strong communicator who makes complex things simple ✨ Practical experience with certification-ready hardware ✨ Affordable, efficient, and results-oriented 🎯 Let’s Build Something That Works Whether you're launching a new product, troubleshooting a design, or scaling to production, I’m ready to help bring your vision to life with solid engineering and dependable execution. 👉 Check out my work: github.com/zainsiddiqui-zz 📩 Let’s connect and build your next success.

Hello, I am a Full Stack Developer and AI Solutions Engineer with 10+ years of experience building scalable SaaS platforms, automation systems, and AI-powered applications. I have worked extensively across open-source technologies and bring a strong mix of product thinking and engineering execution. My core experience includes product/project management, database architecture, and full-stack development using PHP, Node.js, React, MySQL, Python and modern cloud infrastructure. One of my key projects is a large-scale Dropshipping SaaS platform that I built from scratch. Today, it supports 4,200+ dropshippers and 70+ suppliers, handling over 10,000 orders daily. The system integrates directly with Shopify using real-time webhooks, enables supplier bidding for product fulfillment, and manages the complete order lifecycle. The platform is built using CodeIgniter, Node.js (with WebSockets for real-time chat), MySQL, Redis, MongoDB, and Pub/Sub for high availability (99.7%). It’s deployed on cloud infrastructure with load balancing, separate read/write databases, and integrations for payments, shipping, and AI services. More recently, I have been focused on building AI-driven solutions that combine LLMs, automation, and full-stack systems to solve real business problems. Some of the AI solutions I have built include: ------------------------------------ Voice-based AI commerce agent for product discovery and recommendations AI Answering Service & Virtual Receptionist AI-powered rental SaaS platform for lead capture via voice and chat Construction estimation tool that analyzes drawings and generates cost data AI platform for engineering workflows and insights AI powered matching and booking Custom AI automations My expertise includes: ------------------------ AI agents (voice/SMS and chat-based), RAG chatbots Twilio, Vapi.ai, ElevenLabs, LLM applications (OpenAI, Claude) SaaS platform development MERN stack and PHP/Laravel backend systems Cloud platforms (AWS, Firebase, Supabase) Python, FastAPI, GHL Workflow automation (Zapier, Make, n8n) Booking, scheduling, appointment marketplace patfroms If you are looking to build an AI-powered product, automate operations, or launch a SaaS platform, I can help turn your idea into a working, production-ready system. Let's connect and discuss the opportunities.

PCB Designer and Embedded Hardware Engineer specializing in ESP32, STM32, and IoT product development. I design manufacturable PCBs using Altium, KiCad, and EasyEDA with full JLCPCB production support. I help clients turn circuit ideas into reliable, production ready hardware including schematic design, PCB layout, prototyping, and debugging. What I do • PCB design for ESP32, STM32, Arduino based systems • Schematic design and multilayer PCB layout in Altium and KiCad • IoT hardware design with sensors, power management, and connectivity • Firmware support for STM32 and ESP32 (Arduino framework, HAL basics) • Design for manufacturing and JLCPCB ready Gerbers • Hardware debugging and prototype improvement Tools I use Altium Designer, KiCad, EasyEDA, Fusion 360, SolidWorks, AutoCAD Why clients hire me I focus on practical engineering, not just design files. I ensure your PCB works in real hardware, is easy to manufacture, and is optimized for cost and reliability. If you are building an IoT product, embedded system, or custom PCB, I can help you go from concept to working prototype efficiently.

💲 $60.00/hr 🏆 Expert-Vetted Talent on Upwork 🏢 Associated with Techdome [Top Rated Plus | 100% Job Success] ✅ Fluent English ✅ Fast, Clear Communication ✅ 10+ Years of Experience ✅ 50+ Project Deliveries ✅ Global Startup & Enterprise Experience 👋 About Me Hi, I’m Gaurav Chouhan — a hands-on Technical Product Consultant and SaaS Architecture Specialist. I work at the intersection of product vision, engineering execution, and platform scale. At Techdome, I lead high-impact teams that help startups and enterprises build reliable, scalable, and secure platforms — whether you're launching an MVP or modernizing a multi-tenant cloud solution. What You Get 🔥 Deep product-tech alignment — not just engineering execution 🔥 Proven experience in building and scaling API-first SaaS platforms 🔥 DevOps-first delivery mindset to reduce risk and speed up release cycles 🔥 Cloud-native thinking, security best practices, and long-term architecture foresight What Clients Say ✨ “Gaurav’s product clarity and architecture depth helped us raise funding confidently.” ✨ “He doesn’t just architect features—he maps them to business outcomes.” ✨ “Flawless integration between product delivery, security, and DevOps.” ✨ “Gaurav is the kind of tech lead every founder wishes they had from day one.” How I Can Help 🔍 Define product strategy and roadmap with strong technical feasibility 🔍 Architect and deploy scalable SaaS products on AWS, GCP, and Azure 🔍 Lead end-to-end implementation of API-first developer platforms 🔍 Optimize cloud costs, CI/CD workflows, and system reliability Success Snapshots ✅ Catalyst ERP – Lemonpreneurs Win Re-architected a legacy ERP into microservices using Node.js + GraphQL. This transformation enabled Catalyst to win ₹1 Lakh at the Lemonpreneurs Grand Finale, reduced deployment friction by 30%, and cut infrastructure costs by 40%. ✅ Techdome Featured on Bizz Buzz Front Page 📰 Recognized for exceptional growth, global expansion, and innovation in AI, cloud, and digital transformation. With operations spanning Indore, Hyderabad, the USA, and UAE, Techdome was hailed as an industry leader shaping tomorrow’s tech landscape. ✅ Clutch 2025 Security Service Awards 🔒 Techdome was recognized across seven categories by Clutch India in 2025: Top Application Security, Cloud Security, Cybersecurity Consulting, DeFi Services, Managed SIEM, Network Security, and Vulnerability Management. Skills & Technology Stack Languages: TypeScript, JavaScript, Python, Java, Go Frameworks: Node.js, NestJS, React, Angular, Django, Spring Boot Cloud Platforms: AWS, Azure, GCP, Firebase Architecture: Microservices, GraphQL, RESTful APIs, Serverless, Event-Driven DevOps & Automation: GitLab CI/CD, Docker, Kubernetes, Terraform, Ansible Security: OAuth2, JWT, SSL/TLS, VPC, Compliance Architectures Data Systems: PostgreSQL, MongoDB, DynamoDB, Redis, Kafka, Elasticsearch Product Tools: JIRA, ClickUp, Postman, Swagger, GTM Planning, Sprint Execution 🔍 Keywords to Find Me on Upwork Product Strategy Consultant Enterprise Software Architecture Specialist Scalable System Design Consultant API Platform Strategy Expert Multi-Tenant SaaS Architecture Specialist Cloud-Native Systems Consultant (AWS | GCP | Azure) Secure Distributed Systems Advisor Infrastructure Modernization Expert End-to-End DevOps Pipeline Consultant High-Availability System Architecture Data Pipeline & Storage Architecture Specialist CI/CD Infrastructure Advisor Postman/OpenAPI Ecosystem Expert Cross-Platform API Governance Consultant Legacy to Microservices Migration Expert Codebase Audit & Refactoring Strategist Developer Experience (DX) Systems Architect Event-Driven System Design Consultant Cloud Cost Optimization Strategist SaaS Architecture Expert Technical Product Manager Microservices Architect ✅ Let’s Build the Future, Together Whether you're launching your MVP, scaling to thousands of users, or modernizing an aging platform — I bring the clarity, speed, and system thinking you need. 📬 Message me today — and let’s make your product vision real.

Hello, I help startups and fast-growing companies build scalable, secure, and production-ready web platforms using Python, Django, and modern cloud technologies. Whether you're launching an MVP, scaling an existing system, or building a data-heavy backend, I bring clean architecture, strong engineering, and business-first thinking to every project. **$70K+ earned on Upwork | 2,500+ hours | 45+ successful projects** Why Clients Hire Me Clients don’t just hire me to “write code”, they hire me to solve business problems with technology. You get: - Production-grade code that’s easy to maintain and scale - Clear communication & reliable delivery - Ownership of your product, not just tasks - Documentation and handover so you’re never stuck I’m especially strong at turning messy requirements into stable, well-structured systems. Core Stack * Python & Django - Django, Django REST Framework, GraphQL - Authentication, multi-role systems, SaaS backends - Async tasks, background jobs, WebSockets - AI Integration * Backend & System Design - FastAPI, Flask microservices - PostgreSQL, Redis, RabbitMQ - Job queues, retries, worker pipelines - AI & Integrations: OpenAI, ChatGPT, GPT-4, Claude, LLaMA, Mistral, VAPI, Gemini, API Development - AI Agents / Voice Bots: AutoGen, Deepgram, ElevenLabs, Twilio, Cartesia - Frameworks: LangChain, LangGraph, PyTorch, TensorFlow, Streamlit * Cloud & DevOps (AWS & Linux) - EC2, S3, RDS, CloudFront - Docker, CI/CD, Gunicorn, Nginx - Secure, cost-optimized infrastructure * Data & Automation - ETL pipelines, Airflow, Spark - Web scraping & crawling at scale - Data pipelines & analytics systems * Frontend Integration - React, Vue, Angular - Dashboards, charts, and API-driven UIs What I’m Best At I specialize in: - MVPs that scale into real products - SaaS platforms & admin dashboards - API-driven architectures - High-volume background processing - Data-heavy & automation-driven systems If your project needs serious backend engineering, not just a website, that’s where I shine. How I Work - Clarify the real business goal - Design a clean, scalable solution - Implement it with production-grade code - You get documentation, handover & support - No black boxes. No tech debt bombs. Ready to Build? If you’re looking for a reliable long-term engineer who understands both technology and business, click Invite and let’s discuss your project. Let’s build something that actually lasts.

I have nine years of experience with software development and an engineering degree from McMaster University (in Canada). I am proficient with JavaScript, HTML, CSS, AJAX, jQuery, PHP, C/C++, C#, Java, Servers, relational databases, computer graphics, Agile development, data structures, and algorithms.

Senior .NET Engineer with 5+ years of experience building and modernizing web solutions using C#, REST APIs, EF Core, MVC, Web API and ASP.NET Core. 𝗙𝗥𝗘𝗘 𝗖𝗢𝗗𝗘 𝗥𝗘𝗩𝗜𝗘𝗪: I’ll review your current setup to identify technical blockers and provide a quick plan for improving your app’s performance and stability. What Makes Me Different • developed 15+ expandable .NET 8/9 applications from scratch • migrated legacy .NET MVC monoliths to modern Blazor WebAssembly • built 20+ C# REST APIs using ASP.NET Core and EF Core • optimized SQL Server/PostgreSQL schema for high load systems • prioritise for architecture OOP and Dapper for high database performance Domain Expertise • edTech & school management systems • healthcare & medical SaaS • fintech & payment gateways • enterprise ERP & office automation • e-commerce & retail platforms Technology & Frameworks • Languages: C#, TypeScript, JavaScript, SQL, HTML5/CSS3 • Backend: .NET 8/9, ASP.NET Core, Web API, Entity Framework Core, Dapper • Frontend: Blazor (Server/WASM), Angular, React, MVC, Razor Pages • Architecture: Microservices, DDD, Onion Architecture, Monolith Refactoring • Database: MS SQL Server, PostgreSQL, MongoDB, Azure SQL • Cloud and Devops: Azure, AWS, Docker, CI/CD, Git, Azure DevOps 𝗥𝗘𝗖𝗘𝗡𝗧 𝗪𝗜𝗡: Developed a real time Networking & Job Search platform in .NET 9 featuring automated job matching, instant messaging, and professional networking for a recent client. Ready to build something great? Let’s connect! 📩 Message me now to get your FREE code review today.

I am a Senior Electrical Engineer with a Master’s degree and 16 years of experience designing embedded electronic systems from concept through production. My work includes electronics architecture, schematic design, PCB layout, firmware development, server-side system integration, and prototype bring-up for low-volume and production hardware. I have extensive experience with PCB design and manufacturing, including over 10 years using Altium Designer, along with Eagle, KiCad, and other professional tools. My designs account for signal integrity, power integrity, EMC considerations, and manufacturability. I regularly support projects through prototype builds, validation, and transition to contract manufacturing. My technical background includes a wide range of sensors and subsystems such as temperature, humidity, time-of-flight, reflective sensors, load cells, RTDs, pressure sensors, light sensors, smoke detection, IMUs, magnetic sensors, mmWave radar, GPS, and image sensors. I design complete systems that integrate sensing, processing, power management, communications, and backend connectivity. I have developed designs involving bidirectional motor control, piezo mist drivers, servos, heaters, LED drivers, PMICs, battery charging and protection, audio systems with mixing and noise cancellation, RFID and NFC, AC-powered systems, switch-mode power supplies, vision systems, and closed-loop temperature control using PID. My embedded software experience includes bare-metal and RTOS-based development across a wide range of platforms, including PIC, AVR, SAMD and SAMG, STM32, nRF52, EFM32, MSP430, PSoC, LPC, Kinetis, i.MX, Jetson, and Raspberry Pi. I work with Microchip, Atmel, Nordic, ST, Silicon Labs, and Espressif toolchains, as well as FreeRTOS, uC/OS-III, Zephyr, and FPGA-based systems. I have significant experience with IoT system integration beyond the device level. This includes server-side communication protocols for connected products, backend services, databases, and client-facing applications. I have worked with REST APIs, MQTT, WebSockets, TCP/UDP, and custom protocols, using Python and Node.js on the server side, along with SQL and PostgreSQL databases. I have also developed web-based client portals using React and Bootstrap to support device management, data visualization, and system administration. Separately, I use Python extensively as a development and engineering tool. This includes writing scripts and utilities for automation, testing, debugging, manufacturing support, data analysis, and workflow integration during hardware and firmware development. I have designed wireless and connected products using ESP32 and ESP8266, nRF52, u-blox cellular modules, LoRa, Zigbee, and Z-Wave. These systems have been deployed across consumer, industrial, automotive, marine, aviation, and agricultural applications. Industry experience includes RV systems, drones, consumer electronics, industrial equipment, automotive lighting and heating, marine wireless sensor networks, aviation seat and heater controls, and agricultural equipment. I am comfortable working with both startups and established manufacturers and understand the tradeoffs required to move a design from prototype to production. I focus on building reliable, manufacturable systems and communicating clearly throughout the project. If you need an engineer who can own the hardware, firmware, and system integration end to end, I am ready to help.

I am an Electronics Engineer with extensive industrial experience in electronics hardware development, specializing in multi-layer PCB design, embedded firmware, and full product development. For more than 12 years, I have been helping companies transform ideas into reliable electronic products, supporting projects from initial concept and schematic design through prototyping and mass production. I work as a full-time freelancer on Upwork and maintain a Top Rated profile with a strong history of successful projects and long-term collaborations with repeat clients. My work often involves coordinating electronics design, mechanical constraints, and manufacturing requirements to ensure that the final design is both technically reliable and ready for efficient production. I have designed high-speed, mixed-signal, and RF multi-layer PCBs used in products across industries including medical devices, avionics systems, communication equipment, and home automation, where reliability and performance are critical. 📌Key Highlights • 12+ years experience in electronics hardware design • Multi-layer PCB design for high-speed, RF, and mixed-signal systems • Product development support from idea to mass production • Experience coordinating electronics, mechanical design, and manufacturing • Work on both industrial and commercial electronic products • Strong Upwork history with repeat clients and long-term collaborations 🛠️ What I Can Help You With 💡 Product Development • Supporting projects from early concept to production • System architecture and electronics design • Coordination between PCB design and mechanical enclosure constraints • Assistance up to complete box-build stage 📐PCB Design • Schematic capture and hardware architecture • IPC-compliant footprints and STEP-based 3D models • Multi-layer PCB layout (Rigid, Flex, and Rigid-Flex) • PCB placement and routing for high-speed and complex designs • BOM preparation and manufacturing data generation 📡 Technology Experience ⚡ High-Speed Digital Systems • SOM (System-on-Module) based designs • FPGA and DSP platforms • ARM Cortex systems and microcontrollers (PIC, Atmel, STM32, TI MSP series) • DDR2 / DDR3 memory • NAND Flash and eMMC • USB 2.0 / USB 3.0 hub controllers • PCIe interfaces • Gigabit Ethernet • HDMI • UHS SD cards • MIPI (CSI / DSI) and RGB LCD interfaces 🌐 Wireless and IoT Systems • WiFi • GSM / LTE / NB-IoT • LoRa • Bluetooth • ZigBee • GPS / GLONASS • NFC reader and tag systems • PCB and chip antenna implementation 🔌 Power and Control Electronics • Motor control systems • Board power estimation and power architecture • Linear and switching regulators • PMIC integration • Power-over-Ethernet (PoE) • Wireless charging systems • Battery monitoring, balancing, and gauge circuits • Single-cell and multi-cell battery charging systems 🏗️ Prototyping and Production Support • Managing PCB manufacturing for prototype and mass production quantities • Electronics component sourcing and BOM management • Coordination with PCB assembly houses and electronics manufacturers • Assistance in finding reliable and cost-effective manufacturing partners • Supporting projects from design stage to complete product assembly 🔍 Hardware Validation • Board bring-up and functional testing • Hardware debugging and verification • Embedded firmware support when required ⚙️ EDA Tools • Altium Designer • KiCad • Eagle PCB 🔧Mechanical Integration • Working with enclosure formats such as STEP and DXF • PCB 3D model verification for mechanical compatibility

I’m a professional PCB design engineer with extensive experience in developing high-speed digital, RF, and embedded system hardware. Over the years, I’ve successfully designed and delivered dozens of production-ready PCBs across various industries — from industrial automation and telecommunications to IoT, radar, and medical electronics. My work covers the entire product development cycle, including schematic design, PCB layout, signal & power integrity (SI/PI) analysis, EMI/EMC optimization, and DFM validation for mass production. I focus on precision, performance, and reliability, ensuring that every design meets the client’s technical and manufacturing requirements. My Expertise PCB Design: Multilayer, high-speed, RF/microwave, and mixed-signal boards High-Speed Interfaces: DDR, USB, HDMI, Ethernet, LVDS, PCIe EDA Tools: Altium Designer/Kicad/easyEDA/Eagle / OrCAD / Cadence Allegro /PADS Simulation Tools: Proteus/Multisim/CST / HFSS / ADS / LTspice / HyperLynx Hardware Design: Analog and digital circuits, power management, embedded boards Manufacturing Optimization: DFM, DFT, impedance control, EMC compliance Collaboration: Strong coordination with firmware, mechanical, and production teams What I Can Deliver ✅ Complete circuit & PCB design (Prototype to Mass Production) ✅ Enclosure design for PCB and 3D printing ✅ High-speed & RF PCB layout with impedance matching and SI/PI analysis ✅ EMI/EMC issue troubleshooting and optimization ✅ Design improvement and cost reduction consulting ✅ Antenna and RF front-end layout design ✅ Documentation for manufacturing and assembly