Haci Suleyman E.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I can support your product to comply the Cyber Resilience Act (CRA) regulation. I can perform cybersecurity risk assessment, process, cybersecurity feature, requirements, SBOM, other CRA requirements based on standards compatible with you product. Additionaly, I am a Senior Embedded Software Engineer specializing in automotive ECU communication, IoT device development, and ultra‑low‑power embedded systems. Since 2015, I have delivered end‑to‑end hardware, firmware, and connected device solutions for clients in the US, Canada, and Europe — including full automotive diagnostic systems, ESP32‑based IoT devices, and secure OTA‑enabled embedded platforms. Automotive Expertise - ECU communication: CAN, CAN‑FD, LIN, UDS, OBD‑II, J1939 - Diagnostic systems: DTC management, secure flashing, tuning workflows - Automotive cybersecurity: ISO 21434 practices, secure boot, secure comms - Real‑vehicle testing and validation - Hardware design for OBD‑II and automotive‑grade electronics IoT & Ultra‑Low‑Power Systems - ESP32, STM32, NXP, Nordic nRF series - WiFi, Bluetooth, BLE, GSM, LTE‑M, NB‑IoT, LoRaWAN - Battery‑powered & ultra‑low‑power device design - OTA firmware update systems - Cloud‑connected sensors, gateways, and telemetry devices - Mobile app integration (React Native for iOS & Android) - Hardware & Firmware Development Embedded C / C++ / Python - FreeRTOS, secure bootloaders, OTA pipelines - Custom PCB design (Altium), RF design, power optimization - Sensor integration, wireless communication stacks - Production‑ready hardware that can be manufactured cost‑effectively in China Full Engineering Team Available I work with a small, highly experienced engineering team (each member 10+ years experience) covering: - Embedded hardware - Firmware development - Mobile development - Backend & cloud services Instead of hiring multiple freelancers, clients get a single, well‑coordinated team capable of delivering complete automotive or IoT products from concept to production. Project Workflow - Time‑based or fixed‑price options - Clear milestone timeline after kickoff - NDA signed before project start - Optional long‑term support & maintenance - Hardware can be manufactured in China at low cost - Mechanical design can be matched to any enclosure you select If you need a reliable partner for automotive embedded systems, IoT devices, wireless communication, or ultra‑low‑power hardware, I can help you build a production‑ready solution.