
Maryam
Level 2
PCB Design and Hardware Prototyping STM32 ESP32 Firmware
Competenze

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25 USD
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Esperienza lavorativa
Product Development & PCB Design Engineer
Confidentials • Lavoratore autonomo
Jun 2020 - Present • 6 yrs
Working as an Independent Product Development & PCB Design Engineer, delivering complete electronic product solutions from initial concept through prototyping and manufacturing readiness. My core expertise includes professional multi-layer PCB design, hardware prototyping, functional testing, and preparation of fully documented, production-ready manufacturing files. I design optimized PCB layouts with proper grounding strategies, signal integrity control, power distribution planning, thermal considerations, and EMI-aware routing to ensure long-term reliability and stable performance. I provide complete hardware development services including: • System architecture definition and hardware block diagram creation • Analog and digital circuit design • Schematic capture and component selection based on availability and cost optimization • Multi-layer PCB layout design with DFM and DFA considerations • Power management, battery systems, and protection circuit design • Hardware prototyping, debugging, and validation testing • Embedded firmware development for ESP32, STM32, Raspberry Pi, and other microcontrollers • Integration of communication protocols (UART, I2C, SPI, CAN, RS485, Modbus, MQTT, HTTP, WiFi, BLE) • Sensor, actuator, wireless, and industrial interface integration • Preparation of complete manufacturing documentation (Gerber files, drill files, BOM, pick-and-place files, assembly drawings, fabrication notes) • Product enclosure design support, mechanical integration, and PCB-enclosure alignment for real-world deployment I collaborate directly with startup founders and engineering teams to transform product concepts into reliable, scalable, and manufacturing-ready electronic systems. My focus is delivering technically robust, cost-efficient, and production-optimized hardware solutions ready for commercialization. Delivered multiple functional prototypes and production-ready PCB designs for IoT, automation, and embedded hardware applications.
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maverik85

Stati Uniti
Maryam was great! I needed a PCB for a project and I have 0 experience building small electronics. I gave her a description of what I wanted and was nervous I did not explain well enough due to my little knowledge, but she delivered exactly what I was looking for! She was fast to respond and answered...
nicholasspiteri

Malta
I am writing to highly recommend Maryam for any PCB design and hardware engineering roles. She recently completed a complex PCB project for me, and her technical expertise, attention to detail, and professional workflow exceeded my expectations. The project involved a high-density control board featuring...
christiansturny

Svizzera
Maryam delivered a professional and high-quality PCB design for my ESP32-based environmental data logger. Throughout the project, she demonstrated excellent technical knowledge, clear communication, and great patience with my detailed review process. She addressed every revision request carefully and...

theroylee
Cliente abituale

Stati Uniti
I had a really good experience working with him on my hardware project. I originally came in with just an idea, some rough requirements, and a general concept of what I wanted to build, and he helped turn it into a real working prototype step by step. He handled everything from the schematic design and...

it_cannon

Svizzera
Unfortunately, I cannot recommend this service based on my experience. The delivery was delayed and contained multiple fundamental issues, including missing connections, incorrect use of ESP32 pins (e.g. input-only pins used for outputs), and critical flaws in the power design (such as a regulator that...

