a
asad_marketingi

Maryam

@asad_marketingi
4,7(65)

Level 2

PCB Design and Hardware Prototyping STM32 ESP32 Firmware

Pakistan
Anglais, Ourdou, Espagnol
Certaines informations sont présentées en anglais.
À propos de moi
Hi, I'm Maryam, an embedded systems engineer specializing in PCB design and hardware prototyping for electronic products. I design manufacturing-ready schematics and PCB layouts, develop STM32 and ESP32 firmware, and build reliable prototypes for startups and product teams. My expertise includes PCB design, hardware prototyping and testing, Arduino programming, microcontroller development, MATLAB, Simulink, circuit debugging, and sensor integration. I focus on clean design, performance optimization, and long-term reliability to deliver production-ready hardware solutions.... Plus d’infos

Compétences

a
asad_marketingi
Maryam
30 $US/heure
hors ligne • 
Temps de réponse moyen de 3 heures

Voir mes services

Cartes de circuits imprimés (PCB)
I will make hardware prototyping, schematic, pcb board designing, arduino, esp32, stm32
4,8(45)
Cartes de circuits imprimés (PCB)
I will review your pcb and hardware design for manufacturing
4,4(11)

Vous souhaitez travailler sur une base horaire ?

Dites à Maryam ce dont vous avez besoin.

30 $US

/

heure

Portfolio

Expérience professionnelle

Confidentials

Product Development & PCB Design Engineer

Confidentials • Indépendant

Jun 2020 - Present5 yrs 11 mos

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.

65 Avis
4,7

(56)
(4)
(1)
(3)
(1)
Détails de la notation
  • Niveau de communication avec le freelance
    4,7
  • Qualité de la livraison
    4,7
  • Valeur de la livraison
    4,6
1 à 5 avis sur 65
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Les plus pertinents
    N

    nicholasspiteri

    MT

    Malte

    4,7

    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...

    100 $US-200 $US

    Prix

    2 semaines

    Durée

    gig

    Cartes de circuits imprimés (PCB)

    Utile?
    Oui
    Non
    I
    image-docs

    it_cannon

    CH

    Suisse

    1,7

    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...

    200 $US-400 $US

    Prix

    3 semaines

    Durée

    gig

    Cartes de circuits imprimés (PCB)

    Utile?
    Oui
    Non
    T

    timveenstra546

    US

    États-Unis

    1

    Once the project started, Maryam's communication was poor. She was provided a detailed functional/non-functional document that she said she read and understood but the results of her work proved otherwise. The first deliverable (late) appeared to be cut and pasted from other work. Her second deliverable...

    600 $US-800 $US

    Prix

    6 semaines

    Durée

    gig

    Cartes de circuits imprimés (PCB)

    Utile?
    Oui
    Non
    C

    christiansturny

    CH

    Suisse

    5

    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...

    200 $US-400 $US

    Prix

    4 semaines

    Durée

    gig

    Cartes de circuits imprimés (PCB)

    Utile?
    Oui
    Non
    T
    image-docs

    theroylee

    Client récurrent

    US

    États-Unis

    5

    Absolutely love the work we are doing here! Couldn't be happier with the design, schematics and gerber file so far. There is definitely a deep understanding of the whole scope of the project. I will be a returning customer as much as possible!

    100 $US-200 $US

    Prix

    4 jours

    Durée

    gig

    Cartes de circuits imprimés (PCB)

    Utile?
    Oui
    Non