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I am a professional Embedded Engineer with over 10 years of experience in embedded systems design, covering both hardware and firmware/software development. I have also set up and led a full-service engineering team, delivering complete products from concept to production, including hardware design, embedded software, cloud integration, and, AI, mobile app development, product/industrial design. I specialize in wireless IoT devices, wearable/medical technology, and embedded firmware with a strong background in end-to-end product development and team leadership. What We Can Offer Firmware Development - Embedded software for IoT, wearables, medical, and consumer electronics - Driver development, RTOS integration, and low-power optimization - Connectivity stacks: BLE, Wi-Fi, NFC, LoRa, LTE, CAT-M1, NB-IoT - Secure OTA updates, device provisioning, and cloud integration Hardware Design - Custom PCB design with multiple layer and layout for high-reliability embedded systems - Power management & battery systems (BMS, energy optimization) - Prototyping, testing, and design-for-manufacturing (DFM) Product & Industrial Design - Mechanical design, 3D modeling, and enclosure development - Ergonomics and usability design for consumer and medical devices - Design-for-production (DFP) and certification support (CE, FCC, FDA-ready) AI & Data Processing - Edge AI/ML model deployment (Edge Impulse, TensorFlow Lite) - Predictive maintenance and anomaly detection for IoT/IIoT - Cloud-based AI integration with AWS/Azure/Google Cloud Mobile App & Cloud Integration - Cross-platform mobile apps (Android/iOS) - Secure Bluetooth, Wi-Fi, and cloud connectivity with devices - Web portal/dashboard development for monitoring and analytics

Hello! I’m Ben, a hardware and firmware expert with 8+ years of experience in designing hardware, programming embedded systems, and developing high-performance software solutions. My goal is to provide innovative, reliable, and high-performance solutions that meet your needs. With a strong track record on Fiverr (Level 2, 5 stars) and Upwork (Top Rated Plus, 5 stars), I have successfully delivered top-tier service to over 100 clients. What I Offer 1. End-to-End Embedded & Hardware Solutions - Advanced PCB Design & Hardware Development: Expertise in schematic capture, PCB layout, and multi-layer board design for reliable, high-performance, and manufacturable products. Experienced with KiCad, Altium, OrCAD, and Eagle. - High-Speed Design: Strong experience in 1–12 layer PCBs, including DDR3/DDR4/LDDR4, PCIe, USB (2.0/3.0/3.1/3.2), HDMI and 10/100/1000/10Gbase-T1 Ethernet. - Microcontrollers & SoMs: Firmware and hardware development for ARM Cortex-M3/M4 (STM32, ESP32, Nordic nRF52/53/91 series); custom boards for Raspberry Pi CM4/CM5, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126, Allwinner, Zynq-7010. - Power & Hardware Integration: Experience in DC-DC, AC-DC, Buck, Boost, and Flyback converters, along with hardware design involving audio, RF modules, PA, LCD, filters, RFID, touch screens, and LVGL-based interfaces. - Prototype, Testing & Validation: Full support for board bring-up, debugging, validation planning, and functional testing to ensure hardware works reliably in real-world applications. - Manufacturing & Prototyping Support: Preparation of BOM, Gerber, and manufacturing-ready files, with hands-on support for prototype production and manufacturing through JLCPCB and PCBWAY. 2. Robust Firmware Development - Languages & Development: Strong embedded firmware development in C/C++, Python with experience using Visual Studio Code, STM32CubeIDE, Arduino IDE, ESP-IDF, and Segger. - Communication Protocols: Proficient in USB, UART, I2C, SPI, I2S, RS232, and RS485, enabling reliable communication across embedded systems and connected devices. - Wireless & Connected Systems: Experience with BLE, BLE Mesh, ZigBee, UWB, LoRa, NB-IoT, 4G LTE, Wifi, WiFi Mesh, and NFC for IoT and wireless product development. - Sensor: light sensor, CO, Smoke Sensor, Dust Sensor, Air Sensor, pH sensor, IMU sensor, Accelero, Gyro sensor,... - UI/UX for Embedded: Figma, TouchGFX, LVGL for STM32, ESP32, Raspberry Pi. - Motors Control: BLDC, Stepper, Servo, DC Motors - Robotics: Expertise in ROS/ROS2 for applications like AGV, AMR, 6-axis robots. Some of my product that I have designed and released to the market: - Home IP Camera: SoC-based design with DDR3 RAM, Ethernet/Wi-Fi streaming, CMOS image sensor, IR LED array, IR-cut control, USB, and MicroSD - Smart Home Products: Home Gateway with Ethernet, Wi-Fi, Zigbee, and TFT LCD; Smart Switch with capacitive touch, Zigbee, power metering, and AC load control - Tablet Mainboard: RK3399-based board with DDR3, eMMC, touch screen, LTE. - Smart Water Meter: BLE/Wi-Fi design with TI MCU. - Wearable Devices: Low-power wearable designs with wireless connectivity, sensors, and battery management - High-Performance ESC for Drones: Real-time motor control design for efficient and stable drone operation - Custom SBC with AI Module: Raspberry Pi-based SBC solutions with integrated AI capabilities And a lot of other products. With our experience and expertise, I’m confident I can provide tailored solutions to help you complete your project and release your product to the market . I look forward to the opportunity to work with you.

Overview: As a seasoned System Engineer with 7+ years of experience, I specialize in providing robust infrastructure solutions with expertise in Linux administration, DNS management, and Email Delivery. I am passionate about optimizing system performance, ensuring seamless operations, and implementing industry best practices. With a strong track record of delivering successful projects, I am dedicated to providing efficient and reliable solutions tailored to my clients' unique needs. Key Skills: ✅Linux System Administration: Ubuntu, CentOS, Debian | Server Setup, Configuration, and Optimization | Security Hardening | Performance Tuning | Shell Scripting ✅DNS Management: Zone Configuration | Record Management (A, CNAME, MX, etc.) | DNSSEC Implementation | BIND, PowerDNS, NSD ✅Email Delivery: Mail Server Setup (Postfix, Exim, Sendmail) | SMTP Configuration | SPF, DKIM, DMARC | Blacklist/Whitelist Management | Deliverability Optimization Services I Offer: System Administration: - Linux server setup, configuration, and maintenance. - System and network security hardening to safeguard against potential threats. - Performance optimization to enhance overall system efficiency. DNS Management: - DNS infrastructure setup, including domain registration, zone configuration, and record management. - Implementation of DNSSEC for enhanced security and validation. - Troubleshooting DNS-related issues and resolving them promptly. Email Delivery Solutions: - Mail server setup and configuration to ensure reliable email delivery. - Implementation of email protocols and best practices (SPF, DKIM, DMARC) to maximize deliverability and minimize spam. - Blacklist and whitelist management to maintain a clean reputation and avoid email delivery issues. Why Choose Me? - Extensive Experience: I have successfully completed 100+ projects, gaining in-depth knowledge and hands-on expertise. - Client Satisfaction: I maintain a stellar track record of positive feedback from satisfied clients who appreciate my professionalism, prompt communication, and ability to meet deadlines. - Solution-Oriented Approach: I analyze your requirements, devise tailored solutions, and implement best practices to address your specific needs. - Collaboration and Communication: I believe in transparent and effective communication, working closely with clients to ensure their vision is realized. ✅If you are looking for a reliable and skilled System Engineer who can optimize your infrastructure, streamline your DNS management, and enhance your email delivery capabilities, I am here to assist you. Let's discuss your project requirements and take your systems to new heights of efficiency and reliability.

🙋‍♂️ I’m 𝓥𝓾𝓸𝓷𝓰, a Senior AWS Security & SaaS Systems Engineer helping companies secure cloud-native applications, data systems, and real-time(streaming) architectures before they reach production, scale, or SOC2 audits. I specialize in securing modern SaaS, AI, and cloud infrastructure systems built on AWS - focusing on real-world risks like IAM misconfigurations, API vulnerabilities, multi-tenant data leaks, and insecure Terraform deployments. My goal is simple: Turn fast-built systems into secure, scalable, SOC2-ready production platforms ☁️ Core Expertise ✦ AWS Security & Cloud Architecture ✦ IAM least-privilege design & access control hardening ✦ VPC security (network segmentation & isolation) ✦ S3, RDS, Lambda security configuration ✦ Secrets management (AWS Secrets Manager) ✦ Multi-account AWS architecture for SaaS platforms 🧱 Terraform & Infrastructure Security ✦ Secure Terraform module design & review ✦ Detect and fix cloud misconfigurations before production ✦ Multi-environment setup (dev / staging / production) ✦ CI/CD infrastructure security integration ✦ Infrastructure drift detection & prevention 🏢 SOC2 & Compliance Engineering ✦ SOC2-ready AWS infrastructure setup ✦ Audit logging, monitoring & traceability ✦ Identity & access control compliance ✦ Security control mapping & documentation ✦ Production readiness for enterprise clients 🔐 SaaS & API Security (Real-World Focus) ✦ Multi-tenant SaaS security (data isolation / RLS design) ✦ API authentication & authorization (OWASP Top 10) ✦ Fixing BOLA / broken access control issues ✦ Stripe webhook & billing security ✦ Backend security for Node.js / Supabase systems ⚡ DevSecOps & Production Hardening ✦ CI/CD pipeline security (GitHub Actions) ✦ Secret leak prevention in deployments ✦ Production environment hardening ✦ Pre-launch security validation ✦ Logging, monitoring & incident readiness 🌐 Systems I Work On ✦ Multi-tenant SaaS platforms (AWS + Supabase + Node.js) ✦ Cloud-native startup infrastructure (Terraform + AWS) ✦ AI-powered SaaS applications (LLM / backend systems) ✦ Fintech & Stripe-based billing systems ✦ Enterprise systems preparing for SOC2 audits ✦ Real-time / streaming / event-driven architectures ⚠️ Common Problems I Solve ✔ "We are launching but not sure our AWS setup is secure" ✔ "We need SOC2 readiness for enterprise customers" ✔ "Our Terraform infrastructure feels risky" ✔ "We suspect IAM permissions are too open" ✔ "We need production hardening before scaling users" ✔ "Our APIs or SaaS might have data leakage risks" 🧠 My Approach 1️⃣ Analyze cloud architecture & data flow 2️⃣ Identify attack surface (IAM, APIs, storage, network) 3️⃣ Review infrastructure-as-code (Terraform) 4️⃣ Detect privilege escalation & misconfiguration risks 5️⃣ Harden production systems step-by-step 6️⃣ Validate against AWS & SOC2 best practices 🚀 Let's turn your AWS SaaS into a secure, scalable, and SOC2-ready system built for real production. 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 𝐚𝐧𝐝 𝐥𝐞𝐭'𝐬 𝐠𝐞𝐭 𝐬𝐭𝐚𝐫𝐭𝐞𝐝. 🔑 Keywords AWS Security | Terraform Security | DevSecOps | IAM Security | SOC2 Compliance | Cloud Security Engineer | SaaS Security | Infrastructure Security | CI/CD Security | API Security | Production Hardening | Multi-Tenant Architecture | Node.js Security | Cybersecurity | Supabase RLS | Stripe Security | OWASP Top 10 | Cloud Architecture Security | AWS IAM Policy Design | Zero Trust Architecture | Security Engineer | Backend Security | Cloud Infrastructure Security | Kubernetes Security | Event Driven Architecture Security | Streaming Security | Real Time Systems Security | Event-Driven Architecture Security

I am an hardware and embedded systems engineer with over 5 years of experience in PCB design, firmware development, and technical consulting for low-power electronic products. I specialize in battery-powered devices, wearables, and IoT systems, with a strong focus on power optimization, hardware reliability, and design for manufacturability. I have worked on projects for global clients across the US, Europe, and Asia, supporting the full product lifecycle from system architecture and component selection to schematic/PCB design, prototyping, debugging, and production readiness. My goal is to deliver clear, efficient, and production-ready engineering solutions. What I Offer: 1. Hardware Design PCB design and hardware development for reliable, manufacturable products Experience with multi-layer boards and common interfaces (USB, Ethernet, memory, wireless modules) MCU and SoM-based designs (STM32, ESP32, Nordic, Raspberry Pi CM, Jetson, Rockchip, NXP) Power, analog, and basic motor control circuits DFM/DFA awareness to support manufacturing and compliance Tools: Altium, KiCad, EasyEDA; basic 3D/CAD support for enclosure alignment 2. Firmware & Embedded Development Embedded C/C++ development with supporting scripts/tools (Python) Wireless and IoT systems: BLE, Wi-Fi, Cellular, LoRa, MQTT, cloud integration Driver development and common protocols (I2C, SPI, UART, RS485, CAN) Embedded UI support using lightweight frameworks when needed 3. Product & Project Experience Startup and small-team environments with a strong product focus Experience coordinating hardware, firmware, and prototyping workflows Practical problem-solving, debugging, and iterative improvement during development 4. Why Work With Me Clear, product-oriented engineering approach Balanced focus on performance, cost, and manufacturability Reliable delivery and transparent technical communication If you’re looking for an engineer who can support your product from concept to working hardware, I’d be happy to connect.

Know about MCU, SoC, ARM, SH, AVR, PIC, ESP, TI CC25xx, TI CC32xx, ESP32, ESP8266, etc. - Prototype Development kit: Arduino UNO R3, PIC16F887, ATmega128, MSP430 Starter kit, STM32F4 Discovery, Raspberry, Beagle Bone, etc. - Software: MS Visual Studio, Altium Designer, u-Vision Keil, Android Studio. - Have experience in programming languages such as C/C++, C#, Java - Have solid knowledge of the standard interface such as I2C, SPI, UART, CAN. - Have experience using debugging tools such as Segger Jlink, CAN bus analyzer (CL3000), Logic analyzer. - IoT devices with wireless connectivity such as LTE, CAT-M1, NB-IoT, LoRa/LoRaWAN, BLE, WIFI, ZigBee, NFC - Good experienced in AWS Service, AWS IoT, AWS Shadow, AWS Jobs. - Good experienced in Battery Management Systems based on BQ products from TI. - Good experienced with Audio Codec chips.