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Electronics Engineering Microcontroller PLC & SCADA Wireless
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Rocio S.

@rocios46

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Embedded System & Firmware Engineer | IoT | PCB

$42 USD / Hour

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Spain (2:04 PM)

Joined on January 22, 2026

$42 USD / Hour

I have extensive experience delivering end-to-end engineering solutions across IoT, embedded systems, firmware, and applied electronics. I design, architect, and deliver production-ready systems spanning hardware, firmware, control software, cloud infrastructure, web dashboards, and mobile applications. My engineering services include firmware and embedded software development, embedded Linux systems, power electronics and control engineering, RF and antenna-aware device integration, PCB design and review, PLC-based industrial automation, and drone and robotics systems. I routinely handle hardware bring-up, driver development, communication protocols, and system-level integration, ensuring performance, reliability, and regulatory awareness from early design through deployment. I work through detailed technical planning, clearly defined architectures, and structured execution. My approach emphasizes engineering accuracy, traceable requirements, test coverage, and maintainable design. I deliver clean, well-tested code, comprehensive documentation, and clear build, deployment, and validation procedures. Clients receive regular technical updates, concise demonstrations, and thorough handover materials to support long-term operation and scaling.

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Reviews
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Simulink DC Microgrid Model $140 USD

Scammer. Sent me an open access ready made file

Ahmed A.

@ahmedi452

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Cairo, Egypt

2 months ago

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Experience

Embedded / Firmware Engineer

Apr, 2019 - Jan, 2026

6 years, 9 months

Indra Sistemas S.A.

Apr, 2019 - Jan, 2026

6 years, 9 months

- Designed and maintained firmware for ARM-based and MCU platforms (STM32, NXP, Microchip, ESP32). - Developed bare-metal and RTOS-based applications (FreeRTOS), including task scheduling, inter-process communication, and power optimization. - Implemented and optimized communication protocols such as UART, SPI, I²C, CAN, Modbus, Ethernet, and TCP/IP stacks. - Worked closely with hardware engineers to bring up new boards, debug schematics, and validate prototypes.

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Madrid, Spain

Apr, 2019 - Jan, 2026

6 years, 9 months

Education

Universidad Politécnica de Madrid

2004 - 2008

4 years

Bachelor’s Degree in Electronic Engineering / Computer Engineering

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Spain

2004 - 2008

4 years

Certifications

P

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50%

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