Hire the Best Amazon FreeRTOS Developers

💡Let's transform your SaaS idea into a revenue-generating MVP in 30 days, helping you find product-market fit 3x faster and secure your first paying customers. Let's make it happen! 🏆Achievements and Happy Customers! • Rescued an Agriculture SaaS business (Itricorp) by rebuilding their failing core platform into a better version just in time to secure their market position. ➡️ "I could say what I needed, and ByteNaNa turned it into code." - Jim Etro, CEO, Itri Corporation • Partnered with a garage startup to build their entire IoT SaaS platform, scaling Watchdog Home Monitor into a successful, market-ready business. ➡️ “The team is extremely responsive and easy to speak with.” - Trey Welstad, CEO, Snowbird • Led the successful launch of a B2C SaaS (GenoStories) on the App Store & Google Play by rescuing and stabilizing its failing legacy codebase. ➡️ "What impresses us most about Bytenana is their ability to deeply understand the emotional purpose behind our product." - Alba D Reboyras, Co-Founder, Genostories Inc • Engineered a mission-critical Industrial IoT SaaS for the mining sector, enabling predictive maintenance and significantly reducing costly operational downtime. ➡️ "They listen to the problem and deliver software that works at a fair cost." - James Trace, CEO, Multotec • Developed a custom content automation SaaS that saved us the full cost of a dedicated social media employee every month. ➡️ "Bytenana is the best place to work!" - Bytenana Team (It is true! People love working here.) 🧠Consultants first, developers second. We work side-by-side with founders, CTOs, and operations leads to solve real business problems — not just ship code. 🧐🧐🧐🧐 Hey, no need to believe us, check the verified reviews from our customers and also demo videos in the portfolio below. (I mean, our faces are there, can't make that up!) 😌😌😌😌 ------------------------------------------------------------------------ ⚙️Our Tool Box 🤖 AI TECHS LangChain | n8n | Make | OpenAI/GPT-4 and other models | Pinecone | Supabase | RAG | AI systems | Lovable.ai | Cursor.ai | Aider → Sales Pipeline and Follow-up Automation • Deep Personalization Cold Outreach System • Proposal Automation System • AI-Powered Content Creation for Social Media Lead Generation • SEO AI Content Producers • Recruiting and Candidate Screening Automation • AI Chatbot 🔍 Context Engineering → Deep requirement elicitation with AI-powered discovery sessions eliminate guesswork and ensure pixel-perfect delivery and fast prototyping. 🌐 Frontend & Visualization Mapbox GL | React | JavaScript | PowerBI | Tableau | Superset → Interactive maps • Real-time dashboards • Mobile-responsive UIs 🗄️ Backend & Databases PostGIS/PostgreSQL | GeoServer | Node.js | Express | GeoDjango | Java Spring | Next.js | N8N | Swagger → Spatial query optimization • Feature services • High-concurrency APIs • API Development • API Integration ☁️ Cloud Infrastructure AWS (Lambda, S3, RDS) | GCP | Docker | Kubernetes | Serverless | Azure | CloudFlare | → Scalable pipelines • Cost-optimized architecture • CI/CD deployment 💡💡Send us a message and let's schedule a call!💡💡

Hi, I'm David. I help turn complex electronic concepts into dependable, production-ready products. With over 5 years of practical experience, I support clients through the full development cycle, from initial design to functional prototypes and manufacturing handoff. My focus is on building efficient, scalable, and cost-conscious hardware systems that perform reliably in real-world conditions. 1. What I Deliver: Embedded Systems & Hardware Development - PCB Design & Hardware Engineering: Circuit design, multi-layer PCB layout, component selection, impedance tuning, compact design, and cost optimization. Emphasis on IPC standards, signal integrity, EMI/EMC mitigation, and thermal considerations. - High-Speed & Complex Systems: Hands-on work with DDR, HDMI, MIPI (CSI/DSI), PCIe Gen1/2, along with SoC and FPGA-based prototyping. - Embedded Platforms: STM32N6, STM32H7/STM32H5, STM32F7/STM32F1/F3/F4, ESP32/ESP8266, Nordic nRF52 series, ARM Cortex-A systems, Raspberry Pi (CM4/CM5), Zynq-7000. - Power & Mixed-Signal Design: Switching regulators (Buck, Boost, Flyback), LDOs, battery systems, motor control (BLDC, stepper, servo, DC), and analog/digital integration, PoE, LLC. - Manufacturing Readiness: BOM preparation, Gerber generation, and design adjustments to streamline production and reduce costs. - Tools: Altium Designer, KiCad, LTspice, Proteus, MATLAB/Simulink . 2. Firmware & Software Development - Programming: C, C++, Embedded C, Python (for automation and validation). - System Development: Linux-based platforms, MCU firmware, RTOS (FreeRTOS), power optimization, bootloaders, OTA updates, and debugging. - Connectivity & IoT: WiFi, BLE, LoRa, Zigbee, GSM/LTE/NB-IoT/5G, GPS, RFID, NFC. - Communication Interfaces: UART, I2C, SPI, I2S, RS232, RS485, CAN, Modbus RTU/TCP, USB, Ethernet. - User Interface: LVGL-driven GUIs, TFT/OLED displays, and touch interfaces. 3. Development Process & Collaboration - Product Lifecycle Support: Concept → prototyping → validation → production handover. - Workflow & Management: Organized development using Git, Jira, and structured documentation with clear milestones. - Global Collaboration: Experience working across US, EU, and Asia time zones with consistent communication. - Troubleshooting: Strong capability in diagnosing and resolving both hardware and firmware issues. 4. Why Choose Me? - Unified Skillset: Combined hardware and firmware capabilities help minimize back-and-forth and speed up delivery. - Practical Engineering Approach: Designs are built with real-world constraints in mind — not just theory. - Efficiency-Oriented: Focus on reducing unnecessary costs while maintaining performance and reliability. - Clear & Responsive Communication: Regular updates, well-documented progress, and quick feedback. Looking to bring your idea into a functional, well-engineered product? Feel free to reach out. I’d be glad to discuss your project !!!

I’m Hamza a Biomedical Engineer with a passion for Embedded Systems, IoT, Electronics, and Robotics. I turn ideas into real, working prototypes and products. Whether it’s designing smart devices, building automation systems, or creating medical technology, I bring innovation to life. What I Do Best: Embedded Systems & IoT Experience with ESP32, NRF52, ATMEL, STM32, PSOC, PIC Work with Raspberry Pi, VisionFive (Linux Board), and Unihiker Programming Proficient in C/C++, Python, Java, MATLAB, JavaScript, and Flutter Connectivity & Communication Skilled in UART, I2C, SPI, MQTT, BLE, BLE Mesh, Sigfox, and Wi-Fi Hardware Design & Prototyping Specialize in PCB Design, 3D Modeling, and Product Prototyping GUI Development Develop Touchscreen Interfaces, E-Paper & TFT Displays, Web Dashboards, and Desktop Applications Work with LVGL, Tkinter, PyQt, and Kivy Framework IoT & Cloud Integration Experienced with AWS IoT, Firebase, ThingsBoard, and WebSocket-based real-time control Industrial IoT (IIoT) Expertise in CAN Communication, Factory Automation, and Smart Sensor Networks Remote Monitoring & OTA Updates Work with ESP-IDF OTA, BLE DFU, and Cloud-Based Device Management I’ve built industrial prototypes, smart sensors, automation systems, and medical devices, real-time data processing and device connectivity. If you need a reliable, high-quality solution, let’s make it happen! Let’s Collaborate!

Greetings ! I’m a Senior Embedded Linux and Firmware Specialist with over 15 years of experience in developing robust and efficient firmware solutions. My expertise spans across various programming languages including C/C++, C#, Java, and Python. I have a proven track record of delivering high-quality embedded systems and firmware for a wide range of applications Key Skills and Expertise : 1) Embedded Systems Development : ✔MCU Firmwares : STM32 family, PIC18F, Atmega family, 8051 families, MSP430 - Arduino UNO, Arduino Mega2560, ESP32/8266. ✔ Linux-Embedded: Raspberry Pi, Beaglebone, Orange PI, Banana Pi,. ✔SDK Tools: Keil, IAR, Atmel Studio, QT IDE, Arduino, Visual Studio. ✔Communication Protocol: Bluetooth 5, Wifi, Zigbee, Lora Worked with nRF-51DK, core nRF51822, beaconkit, NRF52832 dev-kit. - Adafruit BLE, CC2540/CC2541, CC3200, ESP8266/ESP32 - GSM SIM800 SIM900 GPS MODBUS (TCP/IP) (RTU) ,CANBUS ✔ Build Yockto Linux integrate with Qt5 for Raspberry ✔ Customize the AOSP images 2) IoT Application Development Some of my product that I have designed and released to the market: ✔ Home application: Design Air-condition use Toshiba IC, control motor BLDC, have FPC to 7A, 380V, power supply 1000W, temperature resistor sensor, WIFI and IR to control AC Fan by Triac… ✔ Smart Home Product: Design Home Gateway with Ethernet, WIFI , Zigbee and TFT LCD. Design Smart Switch with capacitive touch, Zigbee communication, Single Phase Power Meter, 220VAC/110VAC load control,... and a lot of other products . 3) Mobile Application development ✔Define an interface where you can send and receive data via Bluetooth, WIFI ✔Make a graph which plot data, design database where store the IoT data ✔Design base on MVVM, MVP, Clean Architecture 4) Build-In Desktop Application ✔ Develop desktop application by WPF, Winform using the MVVM pattern, clean architecture ✔Help you solve any problem in the project. ✔ Build GUI app for Mac, Linux, Win by PySide, Python 5) Web Application Development ✔ Consult that make your business successful with my expertise and knowledge ✔Good at the framework: Spring Boot, .NET core, Django, ReactJS - Configuring and administrating CI (Continuous Integration) & CD (Continuous Delivery) tools/utilities to support in deploying 6) Do data entry, data mining, web scraping, and data extraction ✔ Write a custom script for the website that will extract the required data without relying on any specific software ✔ Make scraping tool that performs web crawling, deliver qualified & well-organized databases as your needs (XLSX, CSV, TXT, IMG, XML, JSON) I am dedicated to delivering top-notch solutions that meet and exceed client expectations. My strong technical skills, combined with my commitment to quality and timely delivery, make me the ideal choice for your embedded systems and firmware development needs. Let’s work together to bring your project to life!

I help growing AI teams and SaaS fix AWS issues that slow releases, waste cloud budget, and put production at risk. Best fit for teams that need senior DevOps support for a launch, migration, infrastructure stabilization, or ongoing production ownership. I don’t just “run DevOps”. I find the 20% of infrastructure issues causing 80% of failures and overspending: unstable pipelines, slow builds, noisy deployments, mis-sized compute, always-on non-prod environments, missing alerts, weak access controls, and unsafe infrastructure changes. You get a clear action plan, quick wins in the first days, and production-safe improvements shipped via Terraform, CI/CD, and rollback-ready delivery. What you get from a cloud infrastructure optimization engagement: ✅ 5x faster releases via stable CI/CD and Terraform-driven delivery ✅ Up to 40% AWS cost reduction by eliminating waste and rightsizing resources ✅ Safer AWS migrations with minimal downtime and rollback plans ✅ Scalable, production-ready cloud infrastructure for growing SaaS and AI products ✅ 99.9% uptime mindset: monitoring, backups, health checks, and safe rollouts ⚙️How I work as an AWS DevOps Engineer (simple workflow): 1️⃣ Discovery & Assessment: thoroughly analyze your current infrastructure and pain points 2️⃣ Plan: clear scope, milestones, and the fastest first win 3️⃣ Implement: Build and automate with AWS DevOps Engineer best practices and documentation 4️⃣ Verify + handover: release runbook, rollback path tested, and short documentation Real examples: Non-Production Cloud Cost Reduction (~30%) Problem: Dev and test environments were running 24/7 at near-production scale, burning budget overnight and on weekends with no business value. Risk avoided: Cloud bill growing unsustainably as team scaled, budget pressure forcing cuts to production capacity. 🎯Result: Reduced non-production AWS spend by ~30% through AWS DevOps Engineer cost review, rightsizing, Spot Instance adoption, and automated start/stop scheduling with zero production impact. Industry: eCommerce (cloud-heavy workloads with clear non-prod/prod separation) - CI/CD for AWS Lambda (Python/Node.js): built 30+ pipelines as an AWS DevOps Engineer for build + deploy with unit tests and quality/security gates (SonarCloud, Orca). 🎯Result: developers can provision a new Lambda from a template in minutes using the guide (consistent standards, less manual setup). - CI/CD modernization: migrated 10+ pipelines from TeamCity to GitHub Actions with equivalent build, test, and deploy stages as an AWS DevOps Engineer. 🎯Result: standardized workflows and easier maintenance without vendor lock-in. - AWS Terraform + runbooks: built the AWS stack as IaC with terraform modules and safe plan/apply workflow, aligned with linux system administration practices and AWS DevOps Engineer delivery standards. 🎯Result: performance environment provisioning in ~10 minutes, plus start/stop automation to reduce idle AWS spend. - Automated Sitecore CMS deployment on AWS Windows EC2 🎯Result: Created and implemented Ansible playbooks and reusable roles as an AWS DevOps Engineer to fully automate Sitecore CMS installation on Windows EC2 instances in AWS. This reduced manual configuration work, improved deployment consistency, and made infrastructure setup faster and easier to reproduce. - Redshift cross-account migration delivered as devops engineer: moved a provisioned Redshift cluster to a new AWS account (serverless), restored from backup, and automated backups via AWS Backup. 🎯Result: higher data reliability plus an incident runbook for fast recovery. - IBM Cloud to AWS migration design as aws architect, AWS DevOps Engineer, and cloud engineer: created target (EKS) architecture and rebuilt the stack with kubernetes (EKS) terraform, and aws kubernetes, including aws docker image patterns. 🎯Result: production-ready infrastructure migration foundation with automated Amazon RDS snapshots, EKS cluster, and apps deployed via Helm charts. - Dagster Cloud Hybrid Agent on AWS ECS using Fargate: As a Senior DevOps Engineer I built a docker image + ci cd pipeline GitHub Actions to deploy a versioned agent into a client AWS account, with python docker build steps. 🎯Result: self-serve deployments and automated dataflow runs after merge, with SonarCloud + Orca gates in the loop. - Automated Solr deployment and configuration on RHEL with Ansible 🎯 Result: As a DevOps engineer Developed Ansible playbooks and roles to automate Solr installation and server-side configuration on Red Hat Enterprise Linux servers. This improved deployment reliability, reduced setup time, and minimized the risk of manual misconfiguration. ☎️ Message me with your repo or a short description of the current pain, and I’ll suggest the fastest path to stabilize releases with Senior AWS DevOps Engineer support.

Top 5% Talent on Upwork | Embedded & Hardware Engineer | 100% Job Success | 10+ Projects Delivered | 5+ Years of Experience Are you looking for an experienced Embedded Systems & Hardware Engineer who can transform your idea into a fully working smart device? You’re in the right place. I specialize in designing and developing complete IoT products — from schematic + PCB design, to firmware programming, to wireless communication integration, testing, debugging, and final prototype support. Whether you're building a: ✔ Smart Home Device ✔ Wearable Product ✔ Industrial Sensor Node ✔ BLE Tracker ✔ WiFi Enabled Controller ✔ Battery Powered Embedded System ✔ Custom Wireless PCB Product ◆ Core Expertise ▸ Embedded Systems & Electronics ✓ Microcontrollers: STM32, ESP32/ESP8266, nRF52 ✓ Ultra-Low Power Design: sub-µA standby, long-life battery systems ✓ PCB Design: multi-layer, high-density, signal integrity optimized ✓ Embedded Firmware: UART, SPI, I2C, real-time systems ✓ Wireless: BLE, WiFi, LoRa, MQTT ✓ Motor Control: PID, stepper/servo systems ▸ System Development ✓ Hardware + Firmware integration ✓ Debugging & production validation ✓ Power profiling & optimization ✓ OTA, bootloaders, custom protocols ◆ Tools & Technologies ▸ Firmware: C, C++, Python, FreeRTOS ▸ Hardware: KiCad, Altium, JTAG, Oscilloscope ▸ Communication: UART, SPI, I2C, RS485, Modbus ▸ IoT: BLE, WiFi, LoRa, MQTT ◆ Why Work With Me ✓ Ultra-low power specialist (battery-operated systems) ✓ Full-stack embedded (hardware + firmware) ✓ Production-ready design focus ✓ Clear communication & reliable delivery ✓ Post-project support I can help you engineer it professionally, efficiently, and production-ready. I can help connect your hardware seamlessly to mobile apps, gateways, or cloud platforms.