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RADAR/LIDAR systems determine the range, angle, or velocity of objects relative to the receiver and transmitter being used. The technologies are use in a plethora of industries where detecting objects is a key design element. RADAR utilizes radio signals where LiDAR uses laser technology.
At Freelancer.com, you can find RF Engineers to help you with your latest project. These engineers work on a variety of projects that can range cutting edge health devices to sensing remote objects and more!
Post your project for free and connect with skilled freelancers ready to start today. Compare bids, ratings and portfolios, and only pay when you're happy with the work.
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No upfront cost · pay only when you're happy with the work

6.1
6.1
97%

Ananthapuramu, India
$20 USD per hour
we are good programmer for electronics and computer circuits. we have enormous experience in providing programs for various digital system based on FPGAs.

9.2
9.2
99%

Daska, Pakistan
$50 USD per hour
Live Experts LLC is a multidisciplinary technology company specializing in Engineering, AI/ML, Embedded Systems, IoT, and Automation Solutions for startups, businesses, and enterprises worldwide. With over a decade of technical delivery experience and hundreds of successfully completed projects, we help clients transform complex ideas into scalable, production-ready solutions that solve real business and operational problems. Our strength comes from combining software, AI, automation, electronics, and engineering expertise under one team. This allows us to handle both digital systems and real-world hardware projects with practical implementation experience. Our expertise includes: • Artificial Intelligence (AI) & Machine Learning (ML) • Generative AI & Conversational AI • AI Chatbots & AI Agents • Computer Vision & OCR Systems • Predictive Analytics & Data Intelligence • Workflow Automation & AI Integration • Embedded Systems & IoT Solutions • Arduino, ESP32 & Raspberry Pi Development • PLC, SCADA & Industrial Automation • Electrical & Mechanical Engineering Support • Sensor Integration & Smart Monitoring Systems • AI-Powered Dashboards & Business Platforms • Cloud APIs & System Integrations • Automation & Control Systems We work with modern technologies including: Python, OpenAI, ChatGPT, TensorFlow, OpenCV, Node.js, React, FastAPI, PostgreSQL, AWS, Docker, MATLAB, Arduino, ESP32, Raspberry Pi, PLC systems, and industrial automation platforms. What makes us different is our ability to bridge the gap between: AI + Automation + Embedded Systems + Engineering Many companies can build software. Others can build electronics. Very few can combine AI, automation, hardware, and engineering into complete intelligent systems that work in real business environments. We have experience working across: • Industrial Automation • Healthcare • Logistics & Fleet Systems • Manufacturing • Finance & Trading Systems • Smart Monitoring Systems • Operational Dashboards • IoT & Connected Devices • AI Business Solutions • Intelligent Automation Platforms Our development approach focuses on: • practical implementation • scalable architecture • clean UI/UX • reliable integrations • business-focused solutions • long-term maintainability • clear communication • premium execution quality Whether you need: • an AI-powered platform • an embedded IoT device • industrial automation • computer vision systems • AI automation workflows • predictive analytics dashboards • AI chatbots • sensor-based monitoring systems • electrical/mechanical engineering support • or a complete intelligent system Live Experts can help design, develop, and deploy reliable solutions tailored to your business goals. We believe in building long-term partnerships and delivering systems that create measurable operational and business value.

8.4
8.4
98%

Elmaaddi, Egypt
$45 USD per hour
Digital & Analog Electronics VHDL-Verilog-System verilog Matlab/Simulink Analog and Digital Communications Rust Python C/ C++/C# Micro-controllers Data Structures OOP Qt/ PyQt OpenCV x86 assembly

6.9
6.9
88%

Karachi, Pakistan
$35 USD per hour
I’m an experienced over 10 years PCB and Embedded Systems Engineer specializing in hardware–firmware integration, RF design, and IoT product development. Electrical and Embedded Systems Engineer with over 10 years of experience in PCB design, embedded firmware development, and hardware system integration. Proven expertise in ESP32, STM32, Arduino, MATLAB, and Altium Designer. Strong background in delivering production‑ready designs for IoT, automation, and industrial applications. Core Skills - Embedded Systems (ESP32, STM32, Arduino) - PCB Design – Altium, KiCad - Firmware Development (C/C++) - MATLAB / Simulink / LabVIEW - Communication Protocols: UART, SPI, I2C, CAN - IoT Systems & Sensors - Hardware Debugging & Testing - Power Electronics & Control Systems My focus is on precision, efficiency, and reliability from concept to prototype. I specialize in transforming ideas into reliable, production-ready electronic systems from schematic to firmware to prototype. 💡 Core Expertise 🔹 PCB Design & Hardware Development Expert in Altium Designer, KiCad, Eagle, and EasyEDA High-speed multilayer PCB design with analog/digital mixed-signal precision Proven experience with BMS boards, IoT devices, RF modules, and motor drivers Emphasis on EMC compliance, low-noise layout, and manufacturability 🔹 Embedded Systems & Firmware Engineering Proficient in C/C++, FreeRTOS, and bare-metal programming Platforms: STM32, ESP32, PIC, Arduino, nRF52, Raspberry Pi Integration of sensors, actuators, communication interfaces, and wireless modules Focused on power optimization, real-time control, and efficient resource use 🔹 RF, IoT, Raspeberry PI & Wireless Communication Skilled in Wi-Fi, BLE, Zigbee, LoRa, and custom RF design PCB antenna tuning and matching network design Cloud & data integration via MQTT, HTTP/HTTPS, and Python automation 🧠 Secondary Expertise 🔸 Simulation & Modeling MATLAB/Simulink for control, signal processing, and dynamic systems LTSpice, Multisim, Proteus for analog/digital circuit simulation 🔸 Test, Measurement & Automation LabVIEW NI for data acquisition, visualization, and industrial automation Real-time system design, test bench automation, and measurement control 🎯 Why Choose Me ✔ Master’s-level expertise in Embedded & Electronics Design ✔ Cross-domain proficiency: Hardware + Firmware + RF ✔ Precise documentation — schematics, BOM, and Gerber files ✔ Fast communication, full confidentiality, and milestone-based delivery ✔ Free post-project support for long-term client satisfaction Let’s turn your concept into a powerful, real-world product with precision, reliability, and innovation. Best regards, Engr. Muhammad Usman PCB | Embedded | RF | IoT | MATLAB | LabVIEW

6.4
6.4
82%

sargodha, Pakistan
$25 USD per hour
Hey there, I am MUHAMMAD JAVED, the founder of "MJ-FREELANCING SERVICES", an Electrical & Electronics Engineer having more than 10 year's experience of professional freelancing. We are providing solutions for all ENGINEERING fields. "MJ-FREELANCING SERVICES" consists of a team of engineers with following background: ✔️ Electrical & Electronics Engineering ✔️ Telecommunication Engineering ✔️ Software Engineering | Computer Engineering ✔️ Civil Engineering | Architecture Engineering ✔️ Mechanical Engineering | Aerospace Engineering ✔️ Chemical Engineering ✔️ Business Expert (BBA | MBA | CA | ACCA) We have successfully completed more than 5000 Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: ✅️ MATLAB | Simulink ✅️ Embedded & IOT Devices ✅️ CIRCUIT DESIGN: MULTISIM | PROTEUS | TinkerCAD | PSCAD | PSpice | LTspice | LabVIEW ✅️ PCB DESIGN: Altium | Eagle CAD | Proteus | EasyEDA) ✅️ Programming Languages: C | C++ | Python | JAVA | PHP ✅️ FPGA | Arduino | Raspberry Pi | ESP32 ✅️ Verilog | VHDL | Quartus | Xilinx | ModelSim ✅️ Artificial Intelligence | Neural Networks | Machine Learning ✅️ Automation: PLC & SCADA ✅️ Antenna Design: CST | HFSS ✅️ Chemical Process Design: Aspen Plus | Aspen HYSYS ✅️ Mechanical Design, Simulations and Analysis like CFD, FEA, structural analysis on SolidWorks | ANSYS | COMSOL | ABAQUS | Fusion360 We provide services in following writing fields: ► Research Article | Journal Article ► Final Year Project Reports ► Brief Documentation for hardware projects ► Case Studies ► Business plans Writing We are available 24/7 and can start your project as soon as possible. If you are interested please contact us to talk in more detail about your project and define the requirements and milestones.

6.9
6.9
98%

Giza, Egypt
$50 USD per hour
Skilled in debugging, designing , optimizing real time software, with experience in openCV (image processing) and applications of deep learning related to image processing. • Micro controllers / Kits :ATMEGA (Arduino *) , Raspberry Pi, Beagle bone, RM , PIC , PowerPC,AVR , Renases.NXP-LPC812 , STM32 , Aurix TC2XX, TC8XX, Tricore • Communication buses : CAN , Ethernet , Flexray , Lin , SPI , I2C , Serial , MDB • Embedded : DMA , Multicore , MPU • IoT : Wifi , BLE, Zigbee, ESP32, GSM , Nordic • Real-Time Operating systems • Coding : C , C++, C# , .net , Python , Solidity , Blockchain I can also provide 3D printed solution and prototypes if needed. I will devote the time and effort to provide a state of the art solution expect : - Well commented software and documentation. - Support till every thing is running and you are satisfied, we also offer two weeks of testing after completion of the project with no extra cost.

5.2
5.2
98%

samsun, Turkey
$15 USD per hour
I am a full-time freelancer with more than a decade of experience in data analysis and academic studies. I have participated in many projects either as a coordinator or researcher. I have engaged in many activities and gained hands-on experience by working with international institutions. I am specialized in but not limited to: - data analysis (entry, mining, extraction, visualization, modeling & management) - statistical & geospatial analysis - MATLAB coding & its toolboxes applications - research & project development - proofreading of academic studies & technical report I am well organized, keen to detail, and a highly motivated professional with a strong work ethic. I am an ambitious team player and a quick learner who performs the job without compromising on quality. For details (CV, projects, etc.), you can visit my web page at: https://ibrahimsonmez.wordpress.com/eng Contact me about the job details and let’s get started! İbrahim SÖNMEZ, PhD

7.7
7.7
94%

INDORE, India
$20 USD per hour
Five Exceptions Software Solutions Pvt. Ltd. is an ISO certified established in 2015. Our team comprises of immensely talented and dynamic project managers, software developers and testers that work with a focus on quality and timely delivery. 5Exceptions empowering businesses by enabling digital transformation and uncomplicating business processes. Our Technology Stacks 1) Web Development (Frontend and Backend): HTML5, CSS3, Javascript, jQuery, AJAX, Angular.js, React.js, Node.js, PHP, Codeigniter, Laravel Framework, Java, Python, Wordpress, Drupal, Joomla, Ecommerce Development, Woocommerce, Shopify, MySQL, MongoDB, Web Services, & Spring. 2) Mobile App: Android, iPhone, iPad, iOS Development, Ionic Framework, Hybrid, React Native & Flutter. 3) Cloud Services: AWS, Google Cloud & Azure 4) IoT, Augmented Reality & Lidar technology ============================ Our Process: Our software development process has been defined & fine-tuned since beginning. We at 5Exceptions are skilled at implementing any kind of workflow requested by the client. We could split traditional frameworks & use the hybrid approach, taking the best suitable elements from Scrum, Kanban & Waterfall. Collaboration Approach: Our collaboration approach aims at providing value to our clients with fully integrated & dedicated software teams and development processes. To achieve this goal, we follow a five-step process which ensures a proper start & step by step consolidation of any new partnership. 1. Collaboration Scope: The initial focus of the relationship is on exploring project requirement and challenges, and matching these needs with our capabilities & resources. Some of the artifacts & activities for this stage are as follow. -Confidentiality Agreement & learning each other's business -RFI/RFP completion 2. Proposal: The parties prepare and agree on a framework contract, which defines the general terms of the partnership such as the delivery model, ownership, work parameters, payment terms, rights and responsibilities of the parties and other aspects commonly agreed upon. 3. Ramp Up: At this stage, we pay special attention to the establishment of the remote process & finding the best communication channels because well-organized interaction is the base for any outsourcing company. We are ready to use the following channels. -E-mails -Instant messaging -Project Management Systems -Versioning & Reporting Systems 4. Implementation: We implement the projects in successive iterations, with clear outcomes defined for each iteration. 5. Continuous Feedback: Our goal is to contribute to the success of our client's businesses and to build long term relationships with them. To accomplish this objective we get continuous feedback, which we use to shorten the development cycle and increase the quality of the deliverables, improve team dedication and pave the way for lasting collaborations. Let's discuss your requirement and see how we can be of help you to :)

5.9
5.9
100%

Ljubljana, Slovenia
$23 USD per hour
Map making, processing of geographical data, 3D visualisations. Have decades of experiences in working with topographical data (vector, raster, grids, meshes, point clouds). In the last years I mainly do thematic (history) maps, photogrammetric 3D reconstructions and 3D designs.
An RF engineer is a radio frequency specialist who designs, tests, and optimizes wireless systems, antennas, and electromagnetic circuits operating across the radio spectrum. Hiring a freelance RF engineer gives you access to specialized expertise in wireless communications, antenna design, and signal integrity without the overhead of a full-time hire. From IoT product development to cellular network optimization, RF engineering freelancers solve the high-frequency design problems that generalist electrical engineers cannot.
An RF engineer works on any system that transmits or receives signals through the air or along high-frequency transmission lines. That includes cellular modems, Wi-Fi and Bluetooth modules, GPS receivers, radar systems, satellite links, and short-range IoT radios. The work spans circuit-level design, antenna engineering, simulation, prototyping, lab measurement, and regulatory compliance testing.
Commercially, this matters because RF performance determines whether a wireless product actually works in the field. A poorly matched antenna, a noisy power amplifier, or an uncontrolled spurious emission can sink a product launch, fail FCC or CE certification, or degrade user experience. A skilled RF specialist catches these issues during design rather than after manufacturing.
Freelance RF engineers handle a wide range of design and analysis tasks across the wireless stack:
Look for freelancers fluent in the standard RF engineering toolchain. Simulation and design platforms commonly include Keysight ADS, Cadence AWR Microwave Office, Ansys HFSS, CST Studio Suite, Sonnet, and Altium Designer or Cadence Allegro for RF PCB layout. MATLAB and Python are widely used for link budget calculations, channel modeling, and DSP work.
On the bench, expect familiarity with vector network analyzers, spectrum analyzers, signal generators, and real-time spectrum analyzers from manufacturers like Keysight, Rohde and Schwarz, and Anritsu. For compliance and over-the-air testing, anechoic chambers, TIS/TRP measurement setups, and CTIA test plans are routine references.
RF engineering expertise is in demand across multiple sectors:
RF engineering is a deep specialty, and résumés can mask the gap between system integrators and true circuit-level designers. Look for a degree in electrical engineering with a clear emphasis on electromagnetics, microwave engineering, or communications, plus hands-on lab experience. Strong portfolio markers include published designs, antenna patterns, smith chart matching examples, S-parameter plots, and documentation of products that have passed regulatory certification.
Useful interview questions to ask candidates:
Freelancer.com gives you direct access to a global pool of RF engineering talent spanning antenna designers, microwave specialists, cellular integration experts, and EMC consultants. You can post a project on Freelancer.com and receive competitive bids within hours from freelancers who specialize in the exact frequency band, standard, or deliverable you need. Profiles include verified skill tests, portfolio samples, ratings, and detailed client reviews so you can shortlist with confidence. Whether you need a one-off antenna tuning job or a long-term embedded wireless development engagement, Freelancer.com supports flexible project structures, secure Milestone Payments, and built-in chat for technical discussions before you award the work.
Ready to move your wireless product forward?
Hiring an RF engineer works best when you treat the project brief as a technical specification rather than a job ad. The more precisely you describe the frequency bands, standards, deliverables, and target hardware, the more accurately freelancers can scope the work and the better the bids you will receive. The process below walks you from brief to award in three structured steps.
Your project post is the single biggest determinant of bid quality. A vague brief attracts generalists, while a specific RF brief filters for engineers who actually work in your frequency band, standard, and product class. Head to the
Bids on RF projects are mini technical proposals, not just price quotes. A strong bid demonstrates that the freelancer has read your brief, understood the wireless standard involved, and thought about the failure modes specific to your frequency band. Read each proposal carefully and shortlist candidates whose technical reasoning matches the depth of the work.
The final decision combines proposal quality with profile evidence. RF engineering rewards consistency — a freelancer who has shipped multiple wireless products through certification is a safer bet than one with a single impressive project. Look for steady ratings across similar work rather than one standout review.
It depends heavily on scope. A targeted antenna tuning or matching network optimization can be completed in one to two weeks, while a full wireless product design including schematic, layout, simulation, prototype, and pre-compliance testing typically runs two to four months. Define deliverables clearly in the brief so freelancers can quote realistic timelines.
An RF engineer focuses on the analog high-frequency domain — antennas, transmission lines, amplifiers, filters, and electromagnetic behavior. A wireless or embedded engineer typically works on the digital side, integrating radio modules, writing firmware, and handling protocol stacks. Many products need both skill sets, and some experienced freelancers cover both.
Yes. Freelance RF engineers regularly take on focused engagements such as pre-compliance testing review, antenna re-tuning after a mechanical change, or troubleshooting a failing radiated emissions test. Provide your test reports, schematics, and board files in the brief so candidates can scope the work accurately.
Antenna design is a sub-discipline within RF engineering. If your project is purely about designing or tuning an antenna for a known radio, an antenna specialist is sufficient. If you also need front-end design, link analysis, or compliance support, hire a generalist RF engineer with antenna experience.
Many freelance RF engineers offer pre-compliance testing and documentation support for FCC, CE RED, ISED, and similar regimes. Final certification is typically performed by an accredited test lab, but a skilled RF freelancer can prepare your design to pass on the first attempt and represent you during lab visits.

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