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Electronics Embedded Systems Firmware Development Microcontroller PCB Layout
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Hammed

@Hmdlawal

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5.0
2

0.6

0.6

100%

Embedded Systems & Hardware Engineer | PCB Design

$40 USD / Hour

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Flag of NIGERIA

Nigeria (12:24 AM)

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Joined on June 17, 2026

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2 Recommendations

$40 USD / Hour

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I’m an Embedded Systems & Hardware Engineer specializing in PCB design, embedded hardware, firmware, microcontrollers, and IoT product development. With 6+ years of practical experience, 120+ completed projects, 56+ clients, and 28+ repeat clients since 2019, I work across the product development lifecycle, from system architecture and circuit design to PCB development, firmware, prototyping, validation, and production support. I work solo on most engagements, and can also collaborate directly with your existing engineering team or manufacturer when the project requires it. Core Expertise Embedded Hardware & Electronics Hardware Architecture, Circuit Design, Digital & Analog Electronics, Power Management, Battery Systems, Sensor Integration, Industrial & Consumer Electronics. PCB Design & Development Schematic Capture, PCB Layout, Multilayer PCB Design, High-Speed & Mixed-Signal Design, Controlled Impedance, Differential Pair Routing, Power Integrity, Signal Integrity, EMI/EMC-Aware Design, DFM/DFA, BOM & Component Selection. Experience: Single-layer through 12-layer PCB designs, including complex high-speed, Ethernet, PoE, wireless, compute-module and embedded hardware designs. Firmware & Embedded Systems Embedded C/C++, Bare-Metal Development, RTOS, Peripheral Drivers, Bootloaders, Hardware/Software Integration, Sensor Interfaces, Low-Power Firmware and Device Communication. Microcontrollers & Platforms STM32, ESP32/ESP8266, Nordic nRF52/nRF53, RP2040/RP2350, Arduino, Raspberry Pi CM4/CM5, NVIDIA Jetson and TI microcontrollers. Connectivity & IoT Wi-Fi, BLE, Ethernet, PoE, LoRa/LoRaWAN, Zigbee, Thread, LTE/Cellular, GNSS/GPS, RS485, CAN, Modbus, USB, UART, SPI and I²C. I Work With: Altium Designer, KiCad, Eagle, EasyEDA Product Applications My work covers consumer electronics, industrial equipment, IoT devices, networking hardware, automation, smart devices, embedded controllers, electromechanical products, edge-computing systems, and specialized hardware applications. Medical, Automotive, Consumer Electronics, and Industrial/IoT hardware. (Compliance-aware design, flag any FCC/CE/UL/IEC or ISO 13485 requirements upfront and I'll design around them.) How I Work: I review your requirements in detail before quoting, flag technical risks and trade-offs early, and confirm scope before starting, no surprises mid-project. All schematics, source files, and client IP are handled under NDA on request. I stay available post-delivery for support. I respect NDA, confidentiality, proprietary schematics, source code, PCB files, and product IP throughout the engagement. I work across time zones and delivery timelines and project scope are discussed based on your requirements. If you don't see a project similar to yours in my portfolio, ask me. I can provide relevant examples from previous work where permitted. Have an embedded, PCB, firmware, IoT, or hardware project? INVITE ME to bid or INITIATE a chat.

Verifications

On time

100%

On budget

100%

Accept rate

100%

Portfolio

Portfolio

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5.0 · 2 Reviews
2 Reviews
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Flag of UNITED STATES

Bob

5.0

$

1 month ago

Custom 16-Channel EEG Board Design -- 2

Lawal did a great job reviewing my 16-channel EEG board project, including the schematic approach, ADS1299 integration, PCB routing, mixed-signal layout, ESP32 integration, and noise isolation considerations. His feedback was clear and practical, and communication was easy throughout. He made my first experience on this platform genuinely worth it. We're already moving to the next phase, and I'll definitely continue using his services. Highly recommended! [20 July, 2026] Lawal did a great job reviewing my 16-channel EEG board project, including the schematic approach, ADS1299 integration, PCB routing, mixed-signal layout, ESP32 integration, and noise isolation considerations. His feedback was clear and practical, and communication was easy throughout. He made my first experience on this platform genuinely worth it. We're already moving to the next phase, and I'll definitely continue using his services. Highly recommended!

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Experience

Brightus

Jan, 2019 - Present

•

7 years, 6 months

UI/UX Design

Mar, 2022 - Present

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4 years, 4 months

I create modern and user-friendly interfaces for websites, mobile apps, dashboards, SaaS products, and admin systems. My process includes user research, wireframing, prototyping, responsive layouts, and design systems. I use Figma, FigJam, Adobe Photoshop, Adobe Illustrator, and modern UI design principles to deliver clean and engaging digital experiences.

Flag of NIGERIA

Ibadan, Nigeria

CAD Product Design

Feb, 2022 - Present

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4 years, 5 months

I develop production-ready mechanical products from concept to manufacturing. My services include industrial product design, 3D CAD modeling, assemblies, technical drawings, product visualization, packaging, labels, and manufacturing documentation. I work with SolidWorks, AutoCAD, KeyShot, and Adobe Illustrator to deliver accurate engineering designs.

Flag of NIGERIA

Ibadan, Nigeria

Electronics Engineering, PCB & Firmware Development

Feb, 2021 - Present

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5 years, 5 months

I develop embedded hardware solutions from concept to production, including schematic design, multilayer PCB layout, firmware development, hardware debugging, simulation, testing, and manufacturing support. I use Altium Designer, KiCad, Proteus, EasyEDA, LTspice, STM32, ESP32, Arduino, PIC, AVR, Embedded C, C++, SPI, I²C, UART, CAN, MQTT, and Modbus.

Flag of NIGERIA

Ibadan, Nigeria

CMS Development (WordPress, WooCommerce, Shopify, Webflow & Wix)

Feb, 2020 - Present

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6 years, 5 months

I build custom CMS solutions ranging from business websites to eCommerce platforms. My expertise includes WordPress, WooCommerce, Shopify, Webflow, Wix, custom themes, plugin development, API integration, migrations, bug fixing, performance optimization, security improvements, Elementor, Divi, WPBakery, ACF, PHP, JavaScript, HTML, CSS, and MySQL.

Flag of NIGERIA

Ibadan, Nigeria

Mobile Application Development

Jan, 2020 - Present

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6 years, 6 months

I develop high-performance mobile applications for Android and iOS with intuitive interfaces and scalable back-end integration. From business apps and customer portals to productivity and eCommerce solutions, I focus on performance, usability, and reliability. Tech Stack: Flutter, React Native, Firebase, Node.js, Laravel, REST APIs, MySQL, PostgreSQL, Figma, Git, Android Studio, Xcode.

Flag of NIGERIA

Ibadan, Nigeria

Web Application Development

Jan, 2019 - Present

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7 years, 6 months

I develop secure, scalable, and responsive web applications tailored to business needs. From SaaS platforms and CRM systems to dashboards and custom portals, I build reliable solutions with clean architecture, API integration, authentication, and database management. Tech Stack: PHP, Laravel, React.js, Next.js, Node.js, Express.js, MySQL, PostgreSQL, REST APIs, HTML5, CSS3, JavaScript, Git.

Flag of NIGERIA

Ekiti, Nigeria

Full Stack Web Development

Jan, 2019 - Present

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7 years, 6 months

I develop secure and scalable web applications for startups, businesses, and organizations. My work includes responsive front-end development, back-end systems, REST API integration, authentication, payment gateways, and database design. I build reliable applications using PHP, Laravel, JavaScript, React.js, Next.js, Node.js, MySQL, PostgreSQL, HTML5, CSS3, Tailwind CSS, Bootstrap, Git, and Docker.

Flag of NIGERIA

Ekiti , Nigeria

Jan, 2019 - Present

•

7 years, 6 months

Education

Ekiti State University

2021 - 2026

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5 years

(B.Sc.) in Computer Science

Flag of NIGERIA

Nigeria

2021 - 2026

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5 years

Qualifications

Altium Designer Essentials Certificate

2021

Altium

Training in schematic capture, PCB layout, component management, design rules, and preparing production-ready PCB files.

2021

Certified SOLIDWORKS Associate (CSWA)

2022

Dassault Systèmes

Demonstrated proficiency in 3D CAD modeling, assemblies, engineering drawings, and mechanical design using SOLIDWORKS.

2022

WordPress Developer Certificate

2021

WordPress Academy

Covered WordPress website development, theme customization, plugin development, WooCommerce, performance optimization, and security best practices.

2021

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