06/08/2026 updated

**** ******** ****
partially available
info: Available evenings and weekends

Senior Embedded Software Engineer

Fundão, Portugal
Only remote
Master's degree in Biomedical Engineering (UTFPR)
Fundão, Portugal
Only remote
Master's degree in Biomedical Engineering (UTFPR)

Profile attachments

CV - Alexandre Costa.pdf

About me

Senior Embedded Systems Engineer with 15+ years of experience in firmware development, Embedded C, FreeRTOS, STM32, ESP32, IoT and Medical Devices. Specialized in system architecture, debugging, and product development.

Architectural DesignArduinoARM ArchitectureUnit TestingBluetooth Low Energy (Bluetooth)BluetoothDebuggingEmbedded CEmbedded SystemsEmbedded Operating SystemsEmbedded SoftwareFirmwareFreeRTOSHardware DesignMessage Queuing Telemetry Transport (MQTT)Systems IntegrationSoftware UpdateInternet of Things (IoT)Bare MetalTesting (Hardware)Hardware Debugging
Embedded Systems Development
Extensive experience in the architecture, design, and development of embedded systems, including bootloader and application development, firmware modules, FOTA, and system integration across multiple industries.

Programming Languages
Proficiency in C, C++, and Python for embedded software development, low-level API implementation, and system-level programming.

Microcontrollers and Communication Protocols
Deep knowledge of Cortex-M, Cortex-A, Cortex-R, ATMega, Arduino, EFR32, ESP8266, and ESP32 microcontrollers, combined with hands-on experience in I2C, SPI, UART, Bluetooth, FOTA, and MQTT protocols.

Electronic Circuits Design
Practical experience with Altium Designer for the design and development of electronic circuits and hardware solutions.

Unit Testing
Application of unit testing frameworks including CppUTest, Unity, and GoogleTest to ensure software quality and reliability.

Software and Development Tools
Familiarity with GIT, SVN, IAR Workbench, Keil uVision, STM32CubeMX, and TouchGFX for embedded software development and version control.

Operating Systems
Experience working with FreeRTOS, Ubuntu and Yocto in embedded and real-time operating system environments.

IoT and Wireless Technologies
Involvement in IoT platform development including biosensor interface design, signal acquisition, processing algorithms, and connectivity features for point-of-care applications.

Hardware and Firmware Co-design
Responsibility for combined hardware and firmware design, including prototyping, validation, debugging, testing, and documentation across medical, automotive, and rail sectors.

Experience

Professional experience10+ years
Freelancer since2024

Languages

EnglishFluentPortugueseNative speaker

Project history

Senior Engineer of Software Development II

Doing Software Right (DSR)
Development and testing of low-level radio API for IEEE 802.15.4 radio features, including scheduled transmission and reception, CSMA-CA, CCA, and EnhACK. Debugging, validation, and performance analysis. Implementation of runtime code coverage during code execution. Responsible for the architecture, design, and development of the bootloader and application for containment and training systems for pets.

Co-founder

Cor.Sync
Leading the design and development of hardware and firmware for an IoT point-of-care troponin detection platform. Involved in biosensor interface design, signal acquisition, processing algorithms, and system integration. Developing core firmware modules and contributing to prototyping, validation, and connectivity features.

Professional II - Engineer

Capgemini Engineering
Responsible for the architecture and design of embedded systems and several modules (FOTA, Data Persistence, Ambient Light Sensor) for a CGM Continuous Glucose Monitor. Architecture and software design and development of tactical trajectory planning modules for ADAS/V2X. Requirements analysis, middleware design and development, feature implementation, bug fixing, code review, and tool development for HMI Infotainment system.

Lead Hardware Engineer

Mendel Equipamentos Medico Hospitalares
Development of an efficient and low-cost solution for the treatment of perinatal asphyxia and hypoxic-ischemic encephalopathy (HIE) for a Neonatal Incubator. Hardware and firmware design, and participation in the ANVISA certification process. Development of the new generation of surgical lights with improved functionality, including color adjustment, light intensity, and beam shape control.

Hardware Engineer

Velsis Sistemas e Tecnologia Viaria
Embedded systems designer (HW/FW), engineering support level 3, improvement of assets in production and project documentation.

Hardware Development Analyst

Alta Rail Technology
Promotion of embedded systems for the rail segment, from design, meeting the standards that govern this segment, certification in accredited laboratories until approval by the customer, as well as support for the areas of production and quality. Benchmarking of new railway products and technologies, along with Union Pacific (UP) and Burlington Northern and Santa Fe Railway (BNSF).

R&D Analyst

Institutos LACTEC
Implementation of embedded systems, development of electronic circuits of fiscal printers, diagnostic tools implementation and testing, specification, deployment and validation of electronic devices for automated testing and production processes optimization for cost reduction (time and rejection).

Trainee

Volvo do Brasil
Calibration of vehicles (Volvo VM EUR5), updating and maintenance of HIL RIG CUR, control and organization of laboratory and equipment, calibration tests in EECUs (Internal Diagnosis Trouble Code - IDTC).

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