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💯 100% Job Success | 💲 $80K+ Earned | 70+ Projects Completed ✅ 10+ Years of Embedded Systems Experience ✅ Top Rated Freelancer on Upwork ✅ 100% Job Success Score ✅ $80K+ Earned | 2,600+ Hours Worked ✅ End-to-End Product Development Support ✅ Hardware + Firmware + IoT + Software Team Support I help startups, founders, and businesses design and develop reliable, cost-effective, and production-ready embedded products. My core expertise is in embedded hardware design, PCB design, and firmware development. Since 2013, I have worked on a wide range of products in industrial automation, IoT, wireless systems, energy products, smart devices, and consumer electronics. While hardware is my primary specialization, I also provide embedded software, mobile app, web dashboard, and backend development support through my team of engineers. This allows clients to work with one reliable partner for complete end-to-end product development. ✅ Why Clients Work With Me 10+ years of experience in embedded product development Strong expertise in hardware + firmware co-development Hands-on experience with production-ready PCB design Support from prototype stage to final product Clear communication and practical engineering approach Long-term project support and reliable execution ✅ Core Services Embedded hardware design Schematic design PCB design and layout Firmware development in C Board bring-up and debugging Wireless and IoT product development Prototype to production support Mobile and web applications for connected products ✅ Hardware & PCB Design Expertise 2-layer, 4-layer, and 6-layer PCB design Compact, low-cost, and manufacturable board design Analog and high-speed PCB design Hardware debugging and optimization Product redesign and cost optimization ✅ Embedded Systems & Firmware Expertise Worked with 8-bit, 16-bit, and 32-bit microcontrollers from: Texas Instruments Microchip / Atmel STMicroelectronics NXP Espressif Nordic Semiconductor Strong hands-on experience with: UART I2C SPI ADC / DAC RTC Timers MMC and related interfaces ✅ Wireless Technologies Bluetooth Low Energy (4.0 / 4.2 / 5) Wi-Fi Zigbee MiWi GSM (2G / 3G / 4G) GPS Sub-GHz RF ✅ End-to-End IoT Development Along with hardware and firmware, I also support complete IoT ecosystem development through my team, including: Android and iOS mobile apps Web dashboards Backend / server development Cloud-connected IoT systems ✅ Industries & Solutions I have worked on products related to: Industrial automation IoT and connected devices Smart agriculture Energy and power systems EV charging solutions Fuel / gas dispensing systems Consumer electronics Wireless embedded products Whether you need PCB design, embedded hardware, firmware development, wireless integration, or a complete IoT solution, I can help turn your idea into a reliable working product.

US CPA AND INDIAN CA CERTIFIED QUICKBOOKS PRO ADVISOR XERO CERTIFIED ACCOUNTANT Hello There, I am a qualified US CPA (Certified Public Accountant, Guam 4470) and a Chartered Accountant (Indian CPA). I am a full-time freelancer having more than 4 years of experience in remotely managing the Accounting/Bookkeeping needs of companies in the US and also Bank Reconciliation, Finalizing Financial Statements, Financial Reporting, Budgeting, and Forecasting. I have worked in different roles from Bookkeeping to Supervisory, Startups, Accounting Firms, Real Estate firms, eCommerce companies, Manufacturing, Marketing companies, etc. I also have good experience in AP, AR, GL Management, Cost and Expense analysis. I have more than 10 years of experience as a QB Online Certified accountant and I am well versed with all versions of QB (both Desktop and Online). I am detail-oriented and provide maximum time in understanding client requirements. I both take up short-term and long-term projects and I aim in building long term relations with my clients and give utmost value to their confidentiality. I will be available to work with your team all week and can match your team working days too. Services provided: 1) Bookkeeping 2) Accounts Receivable and Accounts Payable 3) PayPal and Credit Card Entry 4) Payroll Management 5) Bank and Credit Card Reconciliation 6) Set up of New Customers and vendors 7) 1099 Creation, Quick Books Set Up and Set up Chart of Accounts 8) Financial Reporting and Analysis (FSA), Costing, Budgeting and Forecasting 9) Assist in the tax return 10) Misc. Reporting (AR Aging, AP Aging, Collections, Cash flow reporting, etc.) File Access: I am well versed with all the applications used to access the files remotely (Log Mein, GoToMyPC, Team Viewer, Remote Desktop, etc). Sharing Files: This can be done by file-sharing tools Dropbox, Google docs or use e-mail. Please get in touch with us to discuss further and how can we help you in understanding how your business is doing. Thanks, Viswa K.

I am an electronics and firmware developer with experience in PCB design, firmware development, prototyping and SMD assembly. My journey started with hand crafting single sided PCBs — giving me a strong practical foundation from the ground up. PCB Design: 2 and 4 layer PCB design in KiCad 8,Kicad 9(Soon migrating to Kicad 10) & EasyEDA(Standard & Pro version) . Former EagleCAD user Schematic to manufacturing ready layout Custom footprint creation Gerber, drill, pick and place and BOM files Full submission support for JLCPCB(PCB & PCBA) and similar manufacturers Assembly & Prototyping: SMD soldering — 1206-0402 passives, QFN, TSSOP (except BGA) Through hole soldering Small batch prototype assembly Component procurement support Firmware & Connectivity: Microcontrollers — ESP32, ESP8266, Arduino, AVR, 8051 Cellular — Quectel EC25 & SIMCom SIM7672 with MQTT SSL/TLS Wireless — LoRa, WiFi, Bluetooth, GSM GPS — Ublox & Quectel module integration Displays — OLED, TFT, capacitive touch Protocols — I2C, SPI, UART, MQTT SSL/TLS, HTTP REST Motor drivers, WS2812 LED arrays, power circuits GPS- Quectel L89, Ublox M10S Special - WS2812 Led Projects include: GPS trackers, GSM security systems, water level controllers, , line followers, obstacle detection robots, WS2812 LED arrays and various ESP32 and Arduino IoT devices. I am a full time freelancer committed to clear communication and timely delivery — working with hobbyists, startups and commercial clients alike. Feel free to reach out!

👋 Hi, I'm Hepshiba Beula, a Networking Engineer with 4+ years of experience specializing in Optical Networks (ONTs & OLTs), VoIP, PBX, Asterisk, Wi-Fi module development, and Network Administration. I have hands-on expertise in embedded systems, networking protocols, and firmware development for high-performance telecommunications solutions. Key Expertise: ✅ ONTs Development & Support – Data flow monitoring, VoIP support, OMCI stack enhancements ✅ Wi-Fi Module Engineering – Performance optimization, debugging, and system enhancements ✅ VoIP Network Enhancements – SIP signaling, VoIP debugging (Asterisk, Wireshark), FXS device integration, FreePBX deployment ✅ Network Administration – VLANs, switch-based configurations, traffic monitoring (Ixia, Spirent) ✅ Embedded Software Development – C programming, Data Structures, Linux-based development ✅ Packet Analysis & Debugging – Deep packet inspection, protocol debugging (Wireshark, Asterisk) ✅ OLT Support – Ensuring seamless integration and maintenance of Optical Line Terminals Professional Experience Highlights: 🔹 Optical Networks (ONT Development & OLT Support) Developed OMCI stack interfaces for ONTs, enabling seamless network provisioning. Worked on PON activation, MIB Upload, and software upgrades for Adtran ONTs. Designed and implemented CFM Protocol on Cortina-based targets. Monitored data flow and ensured VoIP support for ONTs in live network environments. 🔹 Wi-Fi Module Enhancement & Debugging Enhanced and maintained the BGW320 Wi-Fi module for AT&T residential gateways. Debugged and optimized Wi-Fi performance, including network stability and traffic flow. 🔹 VoIP & Network Optimization Implemented VoIP handling in FXS devices (Cortina 6xx, BRCM 8xx, 62x). Debugged VoIP packets using Asterisk, Wireshark, ensuring high call quality. Managed SIP signaling and VoIP enhancements for network efficiency. Has experience in deploying FreePBx on cloud server and configuration of trunk and SIP routing and extension 🔹 Network Configuration & Traffic Analysis Monitored and optimized network traffic using Ixia, Spirent for data packet analysis. Configured VLANs, switches, and network routing for optimal data flow. Tech Stack & Tools: 💻 Languages: C, Python, Shell Scripting 🛠 Tools: Git, JIRA, Bitbucket, Confluence, Perforce, Wireshark, Asterisk, IXIA, Spirent 📡 Platforms: Linux/Unix, Residential Gateways, Optical Line Terminals (OLTs), Optical Network Terminals (ONTs) I am open to networking, IT infrastructure, and embedded systems roles, bringing strong problem-solving skills and expertise in network administration, VoIP, and optical networking solutions. Let’s connect and collaborate! 🚀

🚀 WordPress Expert | Elementor Pro Specialist | WooCommerce Developer | 16+ Years Experience Your website should do more than just look good—it should attract visitors, generate leads, increase sales, and support your business growth. With 16+ years of experience in web design and development, I have successfully completed 600+ projects for startups, small businesses, agencies, and enterprise clients worldwide. Whether you need a brand-new website, WooCommerce store, website redesign, bug fixes, speed improvements, or ongoing maintenance, I can help you deliver a professional, high-performing website that drives results. 💼 Services I Offer ✅ Custom WordPress Website Development ✅ Elementor & Elementor Pro Development ✅ WooCommerce Store Setup & Customization ✅ Figma/XD/PSD to WordPress Conversion ✅ Responsive Mobile-Friendly Design ✅ Website Redesign & Modernization ✅ Website Speed Optimization & Core Web Vitals ✅ WordPress Bug Fixing & Troubleshooting ✅ Malware Removal & Website Security Hardening ✅ Hacked Website Recovery ✅ Plugin & Theme Conflict Resolution ✅ WordPress Maintenance & Support ✅ API Integration & Third-Party Services ✅ Membership & Subscription Websites ✅ Landing Pages & Conversion Optimization ✅ Custom Forms & CRM Integrations ✅ Website Migration & Hosting Transfers ✅ SSL Setup & Security Enhancements ✅ Backup, Updates & Performance Monitoring Why Clients Choose Me ⭐ 16+ Years of Professional Experience ⭐ 600+ Successfully Completed Projects ⭐ Strong Elementor & WooCommerce Expertise ⭐ Clean, Scalable & Maintainable Development ⭐ Fast Communication & Reliable Delivery ⭐ Long-Term Support Available ⭐ Business-Focused Solutions I don't just build websites—I create fast, secure, user-friendly platforms that help businesses grow and convert visitors into customers. 📩 Have a project in mind or need help fixing an issue? Send me your website URL or project requirements, and I'll provide the best solution to move your project forward.

Senior embedded firmware engineer with 5+ years shipping production networking devices — 10+ product lines, 2000+ units in the field. I take routers, switches, and access points from prototype to production, and I'm now weaving edge AI into the firmware, mesh, and connectivity stacks I've built for years. What I do best: • OpenWRT firmware development (x86, MediaTek, Qualcomm, Broadcom) • 5G/4G bonding routers — inventor on a filed patent for MPTCP scheduling (Indian Patent App. No. 202541092429) • Self-healing mesh networks (BATMAN-adv, 802.11s) with fast roaming • Cloud-managed captive portals (CoovaChilli), Multi-VLAN isolation for hospitality & POS • MQTT telemetry, OTA/FOTA upgrades, remote device management • Edge AI & agentic workflows — AI-enabled domain filtering, custom automation agents Recent wins: • Led the technical turnaround of a US client's stalled product line (CleanRouter, Arizona) as a remote contractor — resolved critical legacy bugs, re-architected mesh communication logic, and took products to shipment-ready • Architected a 5G cellular bonding router with integrated NVR for professional livestreaming • Built enterprise cloud-controlled switches with per-VLAN captive portals and Chromecast isolation for hotels Remote-first, working worldwide. If you need firmware that survives real-world deployments — or AI woven into your network stack — let's talk.