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5.8
5.8
100%

Sofia, Bulgaria
$80 USD per hour
I specialize in the programming of machinery with programmable logic controllers, operator displays, data collection, databases, recipe management and motor control. If your system is new or existing, feel free to contact me for a free consultation on how you can create, develop, or improve your industrial process.

7.5
7.5
88%

Çankaya, Turkey
$30 USD per hour
DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms -BLDC motor -Step motor -DC motor Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reade rand transmitter -Magneticreader PowerElectronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design -Easyeda -CAD files of manufacturers Embedded system -ESP32,ESP8266,modules -Bluetooth and Wifi -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas -STM32 -C2000 Matlab -Power Electronics simulation -Motor drive -WindEnergy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation (TI,National, LinearTech, Maximlibraries) -LTI -National -Matlab -Easyeda

7.8
7.8
92%

Charsadda, Pakistan
$25 USD per hour
I started out as an engineer, not a freelancer. Chemical engineering taught me to think in systems, where every input, reaction, and constraint has to balance before anything works. What I did not expect was how far that way of thinking would travel. Over the past 10 years, one project pulled into the next. A spreadsheet that needed automating taught me VBA. A client who needed forecasts pulled me into financial modeling. A pricing problem turned into a data science build. Each job added a tool, a method, a discipline. Bit by bit that became more than 400 skills spread across data science, web and app development, accounting and finance, civil, chemical, mechanical, and structural engineering, Excel and AI automation, VBA, coding, and design. The number is not the point. The point is what that range lets me do. When a problem sits between fields, where the finance touches the engineering, or the data feeds the automation, I do not have to hand you off to three different people. I can hold the whole picture and build it end to end. That is how a 32,255-SKU catalog, a 23-sheet investment P&L model, a 3,544-product pharmaceutical pricing engine, and a 26-region sales control tower with 1,624 formulas all came from one person. Over 50 international clients have trusted me to take a problem from a vague brief to a finished system that holds up under real use. So if your project does not fit neatly into one box, that is exactly where I do my best work. Tell me what you are trying to build, and I will tell you how I would make it work.

7.4
7.4
97%

Mar del Plata, Argentina
$65 USD per hour
As a proactive electronic engineer with ten years of experience in the industry, I offer complete solutions to bring your ideas to life. Working alongside a team of engineers and industrial designers, we can guide you through the design process from the initial concept to the final product. Our extensive experience in working with PCB manufacturers, component suppliers, and PCBA services ensures a smooth process and high-quality results. Our communication style is professional, yet casual, ensuring a positive working experience for all parties involved. With a focus on precision engineering and attention to detail, we are committed to delivering solutions that meet your requirements. While my Ph.D. and position as a professor at the Mar del Plata National University are important components of my expertise, our focus is on providing complete solutions for your electronic design needs. Let us help you engineer success. Analog/Digital electronics design PCB layout (IPC related) Firmware development for ESP32, STM32, PIC, Atmel, Silabs. nRF RTOS, FreeRTOS, Zephyr Low, Medium and high-level programming: Python, C, C++, ASM, Matlab, Arduino Signal conditioning and processing, analog and digital filtering Fuzzy logic & machine learning 3D modeling and printing Product design

5.4
5.4
93%

amman, Jordan
$26 USD per hour
Electrical/Electronics Engineer with 15+ years of experience in Embedded Systems, STM32 Firmware Development, PCB Design, Motor Control, HVAC Systems, and Industrial Automation. I help clients transform ideas into reliable electronic products, from concept and prototyping to production-ready solutions. Core Expertise: ● Embedded Firmware Development (STM32, PIC, PIC32, ESP32) ● Embedded C/C++ Programming ● PCB Design (Altium Designer, Proteus) ● Analog & Digital Circuit Design ● BLDC, Stepper, and Servo Motor Control ● Sensor Integration and Signal Conditioning ● RS232, RS485, Modbus RTU/TCP, USB, SPI, I2C, CAN ● Industrial Control Systems (0-10V, 4-20mA) ● PLC & HMI Systems (Siemens, Mitsubishi, Delta) ● HVAC Control Systems ● Power Electronics ● Product Prototyping, Testing, and Debugging Selected Project Experience: ● BLDC Motor Controllers (Sensored & Sensorless FOC) ● HVAC and Environmental Control Systems ● CNC and Motion Control Systems ● Industrial Automation Equipment ● Marine and Automotive Electronics ● Incubator Controllers ● Spot Welding Controllers ● Hydraulic and Pneumatic Control Systems ● Custom Embedded Products I can support projects from concept to production, including schematic design, firmware development, PCB layout, prototype development, debugging, manufacturing support, and technical documentation. My focus is delivering reliable, production-ready solutions that meet technical requirements, budget targets, and project deadlines. Let's discuss your project.

3.9
3.9
100%

Istanbul, Turkey
$20 USD per hour
I received my Ph.D. and MS degrees in Electrical Engineering. I have conducted research on the design and implementation of power units for electric vehicle power systems and smart-grid technologies during my academic life. My efforts resulted in 18 journal publications, 24 conference proceedings, and 12 projects. Furthermore, I have supervised 1 Ph.D. and 3 MSc students. Most of the projects, I have supervised and participated, in are related to electric vehicles and smart-grid technologies. Also, the projects are mostly experimental-based research. Thus, I have performed hands-on experiences such as electronic circuit and PCB design (especially for power electronic applications), building experimental setups, and programming microcontrollers for industrial and power electronic devices. Some of the research projects that I have been involved in; - Design and implement a dc-dc power converter for energy management in fuel-cell/ultracapacitor hybrid power train in electric vehicles, funded by Yildiz Technical University, PI (Applicant), Aug. 2014 – Dec. 2016. - Design and implementation of a double input and bi-directional dc-dc power converter for energy management in battery/ultracapacitor hybrid power train in electric vehicles, funded by The Scientific and Technological Research Council of Turkey, PI (Applicant), Sep. 2013- March 2016. - Design a smart plug for energy management in smart-grid, Collaborated with VİKO by Panasonic, funded by Republic of Turkey Ministry of Science Industry and Technology (SANTEZ), Researcher (Co-PI) Oct. 2013 – Sep. 2014. Since 2017 I have designed and prototyped many projects for industrial applications. Some of them; - Generic thermostat for thermocouple-based application ( with fuzzy-logic control) - Peristaltic Pump Control Unit (0.01 mL resolution) - Timer; included 3 independent time options for exposition machines. - Controller for textile ironing machine (including hot steam boiler control) - Liquid Level Control Relay (3 models) - PAD Print Machine Control Unit - AC phase control relay - Safety Relay for two-hand control systems - Control unit for hot-transfer-print machines (with fuzzy-logic heat control) - Infrared Textile Dryer control unit (control card and power-electronics layer) - RF remote control unit (with learning protocol) - 3-phase synchronization sensor for high-speed rotating system (specifically for a raising machine) - Humidity sensor for industrial textile dryer machines. Furthermore, I have designed some custom things for custom test and research projects; - Python app for monitoring data from PLC (via MODBUS TCPIP) on an HDMI display. - Arduino UNO-based custom board for teaching coding to kids. Also, I have done mBlock libraries for that board. - Some applications with RP Pico and micropython for tests. - Voltage event recorder with ESP8266 also has IoT feature (thinger.io) - Electrical Energy Meter with ESP32 and SIM800L has an IoT feature (Google Firebase)

4.8
4.8
100%

Saint Maurice de Beynost, France
$59 USD per hour
Good day, Chrysalide Engineering is an electrotechnic consultant and engineering company founded after 15 years experience in the domain. I propose consultant work, calculation notes, design specifications, engineering documents, service. 1 Activities — Electrotechnic et automation — Instrumentation, distribution, conversion — Electronics — Embedded — Software 2 Engineering capabilities — Front-end engineering — Project management — Preliminary studies and design — Wiring diagrams — Engineering documentation — Support for commissioning — On-site training 3 Typical supply — Wiring diagrams — Design specification — Source code — Manuals — Layout drawings Regards, Jean-François Simon

5.0
5.0
100%

Albany, United States
$110 USD per hour
I am a motivated system integrator with substantial maintenance and troubleshooting experience. I also specialize in development, design and implementation and startup of electrical and control systems. I also have a great understanding of thermal imaging as related to control.

3.1
3.1
33%

Etapa, Peru
$8 USD per hour
Mechatronic engineer specialized in IIoT, with 15 years of experience in industrial PLC programming in LADDER, FUNCTION BLOCK and STRUCTURED TEXT LANGUAGE languages in the SIEMENS, ROCKWELL AUTOMATION and SCHNEIDER ELECTRIC brands. Mastery of programming languages such as Python, Java and C/C++ for development in embedded systems (Arduino and Raspberry PI), with knowledge of cloud services such as AWS IoT Core and Azure IoT Hub, in addition to other digital tools such as NODE- RED, GRAFANA, INFLUXDB and AI for the development of IIOT and industry 4.0 solutions. Strong in critical thinking and interpersonal skills, leader in effective collaborations and clear communication. I seek challenging opportunities to apply my technical skills and focus on outstanding results in industrial impact projects. My accounts: Github: https://github.com/IOTDEV2411 Linkedin: https://www.linkedin.com/in/simeon-vega-35334318/
An AC drives expert is an electrical engineering specialist who selects, programs, installs, and troubleshoots variable frequency drives (VFDs) used to control the speed and torque of AC motors in industrial systems. These freelancers translate motor control requirements into working drive configurations, integrating drives with PLCs, sensors, and process equipment to deliver reliable, energy-efficient operation across pumps, fans, conveyors, and complex machinery.
AC drive specialists handle the full lifecycle of variable speed drive applications, from initial sizing through commissioning and long-term support. Their work directly affects production uptime, energy consumption, and equipment life, which is why specialized expertise matters more than general electrical knowledge.
Typical deliverables include drive selection reports, parameter configuration files, wiring schematics, harmonic mitigation studies, EMC compliance documentation, motor-drive matching calculations, and commissioning sign-off reports. Many projects also produce HMI screens for operator control, fault logs for diagnostics, and preventive maintenance schedules tailored to the installation environment.
An experienced VFD specialist works fluently across the major drive manufacturers and the engineering software each one ships with. Buyers should expect candidates to name specific platforms when describing past projects.
AC drives appear anywhere a motor needs variable speed, controlled torque, or soft starting. Demand spans heavy industry, building services, and process plants.
The strongest AC drives freelancers combine field commissioning hours with formal electrical engineering training. Look for candidates who can discuss specific drive families they have programmed, the communication protocols they have integrated, and the troubleshooting methods they apply when a drive trips repeatedly.
Useful qualification signals include an electrical engineering degree, manufacturer training certificates from ABB, Siemens, Rockwell, Schneider, or Yaskawa, and documented experience with hazardous area installations (ATEX, IECEx) when relevant. Portfolios should show wiring diagrams, parameter lists, commissioning reports, and before-and-after data from energy reduction projects.
Sample interview questions to copy and use:
Drive projects rarely sit alone. Many clients also need PLC programming, SCADA integration, motor rewinding advice, control panel design, instrumentation calibration, and electrical safety studies such as arc flash analysis. Hiring a freelancer with adjacent capability reduces handoffs and keeps a single accountable expert across the control system.
Freelancer.com gives you direct access to a global pool of electrical and automation engineers with hands-on VFD experience across every major drive brand. Whether you need a remote parameter review, a full commissioning plan, or a long-term support engineer for a plant retrofit, you can post a project on Freelancer.com and receive competitive bids within hours.
Clients set their own budgets, compare proposals side by side, and review verified ratings, completion rates, and portfolios before awarding work. Milestone Payments hold funds securely until deliverables are approved, which protects both sides during commissioning-heavy projects where work spans multiple visits or remote sessions.
Ready to get your motors running at the right speed, torque, and efficiency?
Hiring the right VFD specialist comes down to writing a precise technical brief, reading proposals carefully, and verifying field experience before awarding the work. The process below is tailored to motor control projects where small details, such as drive firmware version or load inertia, change which freelancer is the right fit.
The brief is the single biggest determinant of bid quality, because AC drives work is highly specific to the equipment in front of the freelancer. A clear post filters for candidates who have actually worked with your drive family, your communication protocol, and your application type. Head to the
Bids on a drives project are short technical proposals, not just price quotes. A strong proposal will reference your specific drive family, raise sensible clarifying questions about load behavior or supply conditions, and propose a realistic commissioning sequence. Read each bid for technical fluency before comparing budgets.
Final selection should combine proposal quality with profile evidence. For AC drives work, weigh consistency across multiple commissioning projects rather than a single impressive job, and look for written client reviews that mention reliability under field conditions and clear documentation handover.
A single drive parameter review or remote commissioning session can be completed in a few days, while a full panel design with multiple drives, PLC integration, and on-site commissioning may run several weeks. Timelines depend on whether the freelancer can connect remotely to the drive, the availability of motor nameplate data, and how much documentation already exists.
Many tasks, including parameter configuration, harmonic studies, drive sizing, fault log analysis, and PLC integration, can be handled remotely if the freelancer has access to the drive over Ethernet, fieldbus, or screenshots. On-site presence is usually only required for physical wiring, megger testing, and initial energization on critical equipment.
A general electrician handles power distribution, wiring, and code compliance, while an AC drives expert specializes in motor control theory, drive parameter programming, communication protocols, and process tuning. For any project involving VFD configuration, PID loops, or fieldbus integration, you need the specialist.
For focused work, such as commissioning a handful of drives, retrofitting a pump station, or troubleshooting recurring faults, a freelancer is faster and more cost effective. Agencies make sense only when you need a turnkey plant build with multiple disciplines under one contract.
Have motor nameplate data, the drive model and firmware version, the load type, supply voltage and frequency, communication protocol, and a description of the symptom or goal. The more specific the brief, the more accurate the bids.

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