Hire expert
Arduino Engineers
for any job

Millions of people use Freelancer to turn their ideas into reality.

Hire a top Arduino Engineer now

Trusted by leading brands and startups

Hire Arduino Engineers

Sukanta M.

5.0

137

7.4

100%

CHATTOGRAM, Bangladesh

$25 USD per hour

✋ Hi! this is Sukanta Mazumder. I have been working as a Professional PCB Designer and an Embedded System Expert for more than 6 years. I have been working in the field of Designing & Implementing : ☑️ Circuit , PCBs for both Commercial and Industrial purpose. ☑️ Microcontroller Based Projects. ☑️ IOT based automation Projects. ☑️ Projects Related to Robotics. ⚡I have completed my graduation in Electrical & Electronic Engineering (EEE). ⚡I have been collaborating on high complexity long-term projects with a variety of clients worldwide. ☑️ Through this profile, I Provide the Following Services: ✔ Schematic Design ✔ PCB Design (1/2/4/6/8 Layers) ✔ Gerber Export ✔ BOM Validation & Sourcing ✔ 3D CAD Design of PCB (.obj /.step) ✔ Reverse Engineering (PCB to New Schematic) ✔ Custom Symbol & Footprint from Datasheet ✔ Microcontroller Based PCB Design ✔ Writing code for the specific microcontrollers ☑️ I had implemented lots of Microcontroller based projects using Arduino, ATMEGA Series, STM32, ESP8266, ESP32, Nordic Semiconductor MCU nRF52, nRF53 Series. Some of them are: ✔Smart Power Meter ✔Smart Wheel Chair ✔Android App Based Automation Project ✔ PID based line follower ✔ Object detector for vision impaired person ✔ SMART Timer ✔Automatic Sow Seeding Robot ✔ IOT based Water and Power Consumption monitoring System ✔ Smart Multimeter with Oled display and so on ☑️ Here are my Industrial Projects: ✔ Industrial 3D Printer ✔ SSR Controller ✔ Stepper Motor Controller with STM32 ✔ 3 Phase Non Insulated AC to DC Conversion & Relay Control ✔ Power Distribution PCB for 3D Printer and so on. ☑️ I can also provide good quality Engineering Report service using: ✔ Latex Why You Should Hire me: : ☑️ On time delivery with Best quality for every project at reasonable rate ($) . ☑️ Assist On PCB Fabrication. ☑️ 100% Guarantee on Customer Satisfaction. ☑️ 24/7 Support After Project Completion (Free of Charge) So, what are you waiting for?? If you have any Idea and PCB Design related projects or any Microcontroller based projects give me a knock as early as possible. I assure you, an unforgettable great experience you are going to get.

Arduino C Programming Electronics Matlab and Mathematica Microcontroller

View Profile

GizanTech

5.0

6.7

96%

Dhaka, Bangladesh

$85 USD per hour

GizanTech, a software company that provides you sustainable technology solutions. Our core belief focuses on delivering what exactly the client needs. We put our clients at the center, tailoring solutions to their unique needs and goals. We harness technology and creativity to tackle challenges and unlock new possibilities. Our organization strives to deliver comprehensive solutions through a multi-phased approach. Initially, we engage in an in-depth analysis to gain a comprehensive understanding of the client's requirements. This process involves a meticulous examination, ensuring that we thoroughly comprehend every aspect of the project. Subsequently, we meticulously formulate a strategic plan of action, aiming to devise the most optimal solution. Our well-structured planning methodology enables us to implement efficient solutions, ultimately resulting in significant time and cost savings for our esteemed clients.

Arduino PHP C Programming JavaScript Engineering

View Profile

Md Abu Sakib M.

4.9

205

7.9

99%

SYLHET, Bangladesh

$20 USD per hour

I've had a fascination with electronics ever since I was a young child. I became a circuit designer because of my obsession with robotics and electronics. I've been motivated to learn and research more because of the bachelor's major I chose. I've been working for approximately 4 years as a Professional PCB Designer and an Expert in Embedded Systems. The following services are offered by me: ✔ Schematic Design ✔ PCB Design (1/2/4/8 Layers) ✔ PCB manufacturing support ✔ 3D CAD Design of PCB (.obj /.step) ✔ Custom schematic library and PCB footprint creation I have done many projects till now. some of those are- ✔ 5-lead ECG device prototype for healthcare   ✔ Oximeter SpO2 monitor   ✔ Sports Activity monitoring device using mmWave radar technology   ✔ Advanced PID controlled Line Following and obstacle avoiding robot   ✔ Design and Implementation of Pulse oximeter   ✔ 2G(Sim800c) & LTE(Sim7600g) based GPS tracker using ESP32 PICO mcu   ✔ Disinfection tunnel for securing area from Covid-19 infection   ✔ Solar powered incubator system with temperature and humidity control for smart agriculture   ✔ IR remote & Wi-Fi based home automation system   ✔ Contactless thermometer with image capturing device   ✔ GPS based positioning and Speedometer device   ✔ Using Dali, 0-10V, LoRa,WiFi, BLE modbus prototol various street lighting system devices   ✔ 4-20mA to 0-5 industrial sensor reading development board I have experience about: 1.Circuit Design 2.PCB Design & Layout making using the following softwares : ✅ Altium ✅ Autodesk Eagle ✅ Proteus ✅ Orcad ✅ KiCad etc My goal is to provide : ✅ Best effort and quality for every project at reasonable rate ($) . ✅ Free servicing facility even after completing the project. ✅ The project perfectly within shortest possible time. Even i will try my best to complete my project before the expiration time.Please allow me to complete your project and i am ensuring my best effort for this.I would love to hear more about what would make this project successful for you and explore if we would be good fit to work together.I am looking forward to your response and wish you all the best for you future. So you can completely rely on me.

Arduino C Programming Electronics Product Sourcing Microcontroller

View Profile

Masud R.

5.0

4.2

100%

KURIGRAM, Bangladesh

$10 USD per hour

I am expert to design electrical and electronics circuit , simulate circuit and PCB drawing in Altium, Eagle, EasyEDA and Kicad . What you get: 1) Custom shape of the board. 2) Custom Logo insert on PCB Board. 3) 3D model of whole PCB and all component. 4) All associated files for production and next upgradation. 5)Encloser for the board .

Arduino Microcontroller Electrical Engineering PCB Layout Circuit Design

View Profile

Ashif Mahmud C.

5.0

7.5

81%

GAIBANDHA, Bangladesh

$35 USD per hour

I am a computer software programmer to program for Desktop, Web and IOT device. C/C++ ===== I have been working on C/C++ since 2015 and programming on C/C++ Command Line & C++Win32 & C++MFC & C++WinUI3 & C#.NET . Expert in using IDE VSCode & VS2022. VISUAL BASIC ============ I have been working on Visual Basic since 2000 and programming on VB6 & VBA & VB.NET. Also expert in using IDE VS6 & VS2022. PYTHON ======== I have working on Python since 2017 and programming on Python 3.9 for Linux & Windows. WEB (ASP.NET/ HTML/CSS3.0) ========================= I have been working on Web Development since 2010 and developing web application and web site by using ASP.NET & HTML & CSS3.0. Also expert in using IDE VS2022. GRAPHICS DESIGN ================ I have been working on Graphics Design since 2000 and expert using in Adobe Photoshop & Adobe Illustrator. ARDUINO & IOT ============= I have been working on Arduino since 2017 to develop embedded & IOT device by using Arduino NANO/UNO/MEGA & ESP32. Building IoT device to read sensor data and send it to the web server, motor control, control relay switches and LEDs. Expert in working on Arduino IDE on C & C++. ELECTRONICS ============ Since 1995 I have been working on Analog and Digital Electronics to build any kind of device. I have build lots of devices. So more than 20 years of experience on Electronics. Including power supply & embedded device design. Any kinds of schematic and PCB design.

Arduino C Programming Java Visual Basic Graphic Design

View Profile

StudioGo

5.0

309

8.4

99%

Phulbari, Bangladesh

$85 USD per hour

This is STUDIO GO. Team of professional 3D Artist, Video Editor , 2D and 3D Animator, Motion Graphic Designer, Architect and Voice Over artist with over 6 years of experience and improving every day developing editing and animation for the creative industry. What we can do for you : ► Video Editing: From commercials to documentaries, tutorials to online courses, explainer videos to promotional content, YouTube, social media, travel, and music videos, we handle it all with finesse. ► Animation: Bring your ideas to life with our dynamic 2D and 3D animations. Whether it's creating subtitles and captions, logo animations, or crafting captivating intros and outros, we've got you covered. ► Modeling: Explore our capabilities in both 2D and 3D modeling, where we breathe life into your concepts with meticulous attention to detail. ► Architecture: Delve into our expertise in architectural visualization, where we transform your architectural designs into stunning visual representations. Tools we use: ✅ Davinci resolve ✅ Adobe Premiere Pro ✅ Adobe After Effects ✅ Adobe Audition ✅ Adobe Photoshop ✅ Adobe Illustrator ✅ Blender ✅ Adobe Animate ✅ Cinema 4D ✅ Maya ✅ 3D max ✅ AutoCAD ✅ Autodesk Revit ✅ SketchUp ✅ Archicad We love being creative and won't be satisfied until you're happy to give us 5 Star . Thank you!

Arduino Adobe Flash Graphic Design Audio Services Logo Design

View Profile

Md. Nurullah A.

5.0

6.4

99%

Rajshahi, Bangladesh

$20 USD per hour

Hey there! I'm Nurullah Al Masum, a dedicated freelancer specializing in Android app development, IoT solutions, web development, and machine learning. With over 4 years of experience, I help businesses and startups transform ideas into powerful, scalable, and user-friendly digital products. I've got some serious skills when it comes to technologies like Java, Kotlin, Flutter, JavaScript, TypeScript, Python, React, Node.js, Firebase, and TensorFlow Lite. I love building high-quality Android applications, modern web platforms, and intelligent solutions that deliver great user experiences. I also have extensive experience developing IoT systems using BLE, Wi-Fi, MQTT, sensors, and ESP32, creating smart, connected solutions for automation and real-time communication. Alongside that, I enjoy implementing machine learning and AI features directly on mobile and embedded devices. My passion is innovation. With a strong background in Computer Science and Engineering, I continuously stay up to date with the latest trends and best practices across mobile, web, AI, and IoT technologies. Looking for someone who can turn your ideas into exceptional digital experiences? Look no further! I'm here to bring your vision to life. Hire me, Nurullah Al Masum, and let's build something amazing together!

Arduino Java Python Android Machine Learning (ML)

View Profile

Junayed B.

5.0

6.0

95%

DHAKA, Bangladesh

$10 USD per hour

Hello, I have come from Electrical and Electronics Engineering discipline. My passion is programming and Robotics. Currently I am working as a Embedded system Engineer (where my main work is to do PCB design and firmware development) in a Reputed Semiconductor chip designer company In academic years I have done many project and robotics competitions . My intro video - https://www.youtube.com/watch?v=4m9aySOlwgQ I have 7 year experience on - # C programming # Python # Java # PyQT5 ############PCB design expertise in -##################### i) Ki CAD ii) Altium Designer iii) EASY EDA iv) Eagle CAD v)Fusion 360 ############ programming experiences ################################ i) Arduino ii) Raspberry Pi (Mainly 2 & 3) iii) STM 32 iv) ESP 8266 v) NODE MCU ###################### 3D Modeling ############# i)Blender ii) Fusion 360 Why You Should Hire me: : ☑️ On time delivery with Best quality for every project at reasonable rate ($) . ☑️ 100% Guarantee on Customer Satisfaction. ☑️ 24/7 Support After Project Completion (Free of Charge)

Arduino C Programming Python Electronics Mobile App Development

View Profile

GdevDataSceince

4.8

6.1

93%

Naogaon, Bangladesh

$15 USD per hour

Greetings. My name is Kishor G., and with over 14 years of extensive experience in Data Science, Machine learning, and Python. Machine learning frameworks and libraries that provide the necessary structures and functions to build, train, and deploy machine learning models. Extensive experience in Python, ML, Automated scraping, Power BI, Tableau Dashboard, Looker Studio Advanced, Microsoft, and MATLAB. I have gained the expertise to provide work reporting Analyst services that are second to none. My skill set includes, but is not limited to: ✅ Python. ::Django ::Python Optimization ::Algorithmic Efficiency ::APIs integration ::Code Refactoring ::CSV File Operations ::OCR, Tesseract ::Images processing, Video object detection. Object detection ::Data manipulation, data visualization, Predictive Analytics, and data analysis. ::Performance Testing ::Familiarity with databases and SQL for data extraction. ::Excellent problem-solving skills and critical thinking. ::Chat GPT integration ::Desktop Application (exe Application ) ::GPU/CPU ***Data visualization and Predictive Analytics ::SPPSS/STATA/R 🚩***Machine Learning (ML)/Deep Learning ::::Simulation ::::Natural Language ::::Linear Programming ::::Neural Networks ::::Genetic Algorithm ::::Natural Language Processing(NLP) ::::CNNs,RNNs,LSTM,GANs ✅Hyperparameter Tuning: The performance of a deep learning model depends on hyperparameters such as learning rate, batch size, and network architecture. Hyperparameter tuning involves optimizing these parameters for better model performance. 🚩 ***Full-Stack Developer ::::Website Management ::::Real time application ::::Chat GPT integration ::::UI/UX Design ::::Desktop Application ::::JavaScript ::::Visual Studio 🚩***Database Development -Access, MySQL -PostgreSQL -YOLO V5,V8 🚩***Automated Cart and plot development ::::Power Automate ::::Dynamics ::::PowerApps ✔ Airtable Grid, kanban, calendar, and gallery will provide flexibility for tracking progress and visualizing work ✔ CRM ✔ Odoo ✔Keygen 🚩***Automated scraping tool Web Scraping: Using Python Beautiful Soup, Selenium, Automation, Data and Image Extraction, Image extraction, and Data Processing. Connection to various data formats, such as CSV, JSON, XML, 🚩*** PCB & MATLAB I'm an Engineer expert on PCB and responsible for designing, developing, and maintaining printed circuit boards used in electronic devices and systems. :::: PCB design software (e.g., Altium, Eagle, KiCad) :::: Consider factors such as signal integrity, power distribution, thermal management, and maneuverability. :::: Electronic components, circuit design, and PCB manufacturing processes :::: Familiarity with PCB fabrication and assembly technologies. Athens time and will quickly answer your requests and inquiries! I love bringing on new clients and can't wait to show you how I can streamline your business today! Thanks, and have a great day! Gdev

Arduino C Programming Java JavaScript XML

View Profile

See more Arduino Engineers

Clients rate our Arduino Engineers

4.9 out of 5

from 33,615 reviews

How to hire a great freelance Arduino Engineer

An Arduino engineer is an embedded systems specialist who designs, programs, and prototypes electronic devices using the Arduino microcontroller platform and its ecosystem of shields, sensors, and libraries. Hiring a freelance Arduino engineer gives you fast access to hardware-software integration skills for IoT devices, robotics, automation, and product prototyping without the overhead of a full-time embedded team.

What an Arduino engineer delivers

Arduino developers turn an idea or a circuit sketch into working firmware running on real hardware. They write C and C++ code for the Arduino IDE, design supporting circuits, integrate sensors and actuators, and validate the build through bench testing and iterative prototyping. The commercial value is speed: a skilled Arduino consultant can move a concept from breadboard to functional prototype in days rather than weeks, which compresses product development cycles and reduces the cost of validating ideas before committing to custom PCB manufacturing.

Typical deliverables from an Arduino freelancer include:

Firmware written in the Arduino IDE or PlatformIO, with documented source code and version control

Wiring diagrams and schematics produced in Fritzing, KiCad, or Eagle

Custom PCB designs that replace the development board for production runs

Sensor integration for temperature, humidity, motion, GPS, RFID, ultrasonic distance, and load cells

Wireless communication using Wi-Fi, Bluetooth, LoRa, Zigbee, or GSM modules

Motor control for stepper, servo, DC, and brushless motors

Bill of materials, assembly instructions, and test procedures

Integration with cloud platforms and dashboards for remote monitoring

Core tools, boards, and technologies

Strong Arduino experts work fluently across the official board family and the wider compatible ecosystem. Expect proficiency with the Arduino Uno, Mega, Nano, Leonardo, and Due, along with the MKR series for IoT projects and the Nano 33 BLE for wireless and machine learning workloads. Many projects also call for closely related microcontrollers that use the same toolchain, including the ESP32, ESP8266, and Teensy.

On the software side, look for hands-on experience with:

Arduino IDE and PlatformIO for firmware development

C and C++ programming, including pointer use, interrupts, and memory-constrained optimization

Communication protocols such as I2C, SPI, UART, CAN, and Modbus

MQTT and HTTP for IoT messaging, with broker setup on platforms like Mosquitto or AWS IoT

Real-time operating systems like FreeRTOS for multitasking on capable boards

Schematic capture and PCB layout in KiCad, Eagle, or Altium

Simulation in Proteus or Tinkercad Circuits before committing to physical builds

Industries and common use cases

Arduino engineering is used wherever low-cost, low-power microcontrollers can collect data or control physical hardware. Common engagements come from:

IoT product startups building connected sensors, smart home devices, and asset trackers

Agriculture and aquaculture operations needing soil moisture, water quality, or greenhouse climate monitors

Industrial automation teams prototyping PLC-adjacent control systems and data loggers

Robotics builders developing autonomous rovers, drones, and robotic arms

Educational publishers and STEM kit makers creating teaching hardware and lesson materials

Medical device prototyping for early-stage research and human-factors testing

Art installations, interactive exhibits, and stage productions requiring synchronized lighting and motion

How to evaluate Arduino freelancers

The strongest Arduino developers combine firmware skill with practical electronics knowledge. They can read a datasheet, choose the right voltage regulator, debug a noisy sensor signal with an oscilloscope, and write firmware that survives power cycles in the field. A formal background in electrical, electronic, or mechatronic engineering is common but not required if the portfolio shows depth.

When reviewing candidates, look for:

A portfolio of working prototypes with photos, schematics, and ideally video demonstrations

GitHub repositories showing well-structured Arduino code, libraries, and clear commit history

Experience taking a project from breadboard through PCB to enclosure

Familiarity with the specific sensors, modules, or protocols your project requires

Comfort with both firmware and the supporting circuit design, not one or the other

Useful interview questions to copy and use:

Walk me through a recent Arduino project where you handled both the firmware and the circuit design. What were the trade-offs?

How would you debug an I2C sensor that intermittently returns invalid readings?

When would you move a project from an Arduino Uno to an ESP32 or a custom PCB with a bare ATmega328P?

How do you manage power consumption for a battery-operated Arduino device that needs to run for months?

Describe how you would structure firmware that reads three sensors, transmits data over MQTT, and handles Wi-Fi reconnection without blocking the main loop.

Why hire Arduino engineers on Freelancer.com

Freelancer.com hosts a global community of embedded systems developers, electronics designers, and IoT specialists with verified Arduino experience. You can compare freelancers across regions, review past project history, and shortlist candidates whose portfolios match your specific board, sensor, or industry. Clients on Freelancer.com set their own budgets and receive competitive bids, which means you control the commercial parameters while the platform handles the matching.

Freelancer.com also supports the engagement end-to-end with built-in chat, file sharing, and Milestone Payments that release funds only when agreed deliverables are accepted. For hardware projects where firmware, schematics, and physical prototypes change hands across borders, that structure protects both sides.

Ready to move your hardware idea from concept to working prototype? Post a project on Freelancer.com today and connect with skilled Arduino engineers ready to deliver firmware, schematics, and tested prototypes for your build.

What are the steps to hiring a freelance Arduino engineer?

Hiring an Arduino engineer works best when the brief is concrete enough for freelancers to size the work accurately. Hardware projects depend on specific sensors, boards, communication protocols, and physical constraints, so the more precision you provide upfront, the faster you reach a usable prototype. The process below moves from posting your brief to awarding the project.

Step 1: Post your project on Freelancer.com

The project brief is the single biggest factor in bid quality. A clear description filters out generic responses and attracts Arduino developers whose hardware and firmware experience genuinely match what you need. Head to the post project page , fill in the brief, scope, timeline, and budget, and publish the project for freelancers to bid on.

The target Arduino board or microcontroller, such as Uno, Nano, MKR WiFi, or ESP32

Specific sensors, actuators, or modules already chosen, with part numbers if possible

Required communication protocols and connectivity, such as Wi-Fi, Bluetooth, LoRa, or I2C

Power requirements, environmental conditions, and any enclosure constraints

Expected deliverables: firmware source, schematics, PCB files, prototype hardware, or documentation

Timeline, intellectual property terms, and budget range

Step 2: Review bids from freelancers

Bids on Arduino projects are short proposals, not just price quotes. Strong proposals show that the freelancer has read the brief, understood the hardware and firmware challenges, and thought through how to approach them. Read each bid carefully and shortlist candidates whose interpretation of the work matches your intent.

Look for a clear technical approach, including the boards, libraries, and protocols the freelancer plans to use

Note any clarifying questions raised about sensors, power, or environmental conditions, which signal genuine engagement

Check that the proposed timeline accounts for firmware iteration, PCB lead time if applicable, and testing

Review attached samples, GitHub links, or video demonstrations of comparable Arduino or ESP32 builds

Use Freelancer.com chat to ask shortlisted candidates targeted questions about edge cases before making a decision

Step 3: Evaluate freelancers and award the project

The award decision combines proposal quality with profile evidence. For Arduino work, consistency across past hardware projects matters more than a single impressive demo, because embedded projects expose engineers to a wide range of debugging and integration problems over time. Review each shortlisted profile carefully before awarding.

Portfolio depth, focusing on prototypes that involved similar sensors, protocols, or industries

Star ratings and the volume of completed projects, particularly in electronics, IoT, and embedded categories

Written client reviews referencing firmware quality, documentation, and on-time delivery

Verified payment method, profile completion, and on-time delivery rate

Comfort with both firmware and electronics, evidenced by schematics or PCB samples

Award the project to the strongest match and use Freelancer.com Milestone Payments to release funds as firmware, schematics, and prototype milestones are accepted

How long does an Arduino project typically take?

A simple sensor or controller prototype with off-the-shelf modules can be delivered in one to two weeks, including firmware and a wiring diagram. Projects involving custom PCBs, certification, or production-ready enclosures usually run several weeks to a few months because they include design iterations, board fabrication lead times, and field testing.

Can I hire an Arduino freelancer for a one-off prototype?

Yes. Many Arduino projects on Freelancer.com are one-off prototypes built to validate an idea, support a research paper, or demonstrate a concept to investors. You can scope a single deliverable, agree on milestones, and close out the engagement once the prototype meets the brief.

What is the difference between an Arduino engineer and an embedded systems engineer?

An Arduino engineer specializes in the Arduino ecosystem and its rapid-prototyping toolchain, which is ideal for proofs of concept and small-scale production. An embedded systems engineer covers a broader range of microcontrollers, RTOS environments, and production-grade firmware practices. Many freelancers do both, and the right choice depends on whether you need a quick prototype or a hardened product ready for mass manufacturing.

Do I need an Arduino freelancer or a PCB designer?

If you need firmware, sensor integration, and a working prototype, hire an Arduino engineer. If you already have validated firmware and need only a manufacturable circuit board, a dedicated PCB designer is the better fit. Many Arduino freelancers offer both, so a single hire can often carry the project from prototype through PCB layout.

Will I receive the source code and schematics?

Yes, source code, schematics, wiring diagrams, and bill of materials are standard deliverables. Confirm intellectual property ownership in the project brief so the handover and rights transfer are explicit before work begins.