Hire the best freelance MPLAB X expert designers for your company

While self taught, I have had the beneficial experience of being the son of a machinist/cnc programmer. My interest in CAD first came in the form of video game art. I worked briefly as an artist for B... Read more

While self taught, I have had the beneficial experience of being the son of a machinist/cnc programmer. My interest in CAD first came in the form of video game art. I worked briefly as an artist for Bohemia Interactive Studios, where I was involved in the Arma series games and their VBS simulator projects. I quickly learned though, that game art wasn't what I wanted to do. Since then, under the influence of my father, my brother purchased a Bridgeport Boss 4 CNC. My father and I spent a good amount of time through trial and error retrofitting that machine to full CNC. Now I use Rhino4 and madCAM, along with that Bridgeport, to design, prototype, and manufacture rifle components. The skills I'm acquiring by this, I think are unique because it gives me the perspective of manufacturing in my designs. I think this really goes a long way in helping me design more practically. Without a formal education, I know that there is much room for improvement. I also know that I've had pretty unique life experience associated with the course of my projects.

-analog design -power electronics -pcb design -stm32,esp32,c2000,atmega,arduino firmware -motor control

-analog design -power electronics -pcb design -stm32,esp32,c2000,atmega,arduino firmware -motor control

A reliable electronics engineer and PCB designer with 15+ years of experience (trusted by clients worldwide) in PCB design, schematic capture, hardware development, and manufacturing support. I delive... Read more

A reliable electronics engineer and PCB designer with 15+ years of experience (trusted by clients worldwide) in PCB design, schematic capture, hardware development, and manufacturing support. I deliver production-ready designs that reduce risk, shorten development cycles, and work right the first time. My PCB designs are not only functional but manufacture able, testable, and scalable. With my 100% Job Success Score, I help clients turn ideas into robust, production-ready electronic products. My specialization is in circuit design, schematic capture, multilayer PCB layout, embedded systems, power electronics, RF and microwave circuits and analog circuits. I can do design reviews, hardware development, hardware debugging, reverse engineering, design optimization, troubleshooting and ensure your project is delivered with precision and attention to detail. ⭐ Core Expertise ⭐ ✅ Multilayer PCB designing ✅ PCB design with high speed interfaces, such as LVDS, HS-CAN, CAN FD, RS-422, RS-485, USB 3.0, FPGA high speed SerDes, PCIe, LVPECL, LPDDR4 clock, HDMI ✅ High power PCB design up to 4 layers, 3.2 KW, 320V output at 10A load current ✅ Design for Manufacturing (DFM) & Design for Assembly (DFA) using JLC PCB and PCB way services ✅ EMC / EMI aware PCB design practice using industry standards such as IPC-2221, IEC61188, DO-254 ✅ JLC PCB and LCSC parts selection, finding in-stock components, creating BOM with updated and available parts, finding alternate parts with similar technical specifications ✅ Generating Gerber files, NC Drill files, CPL files, BOM files for production, prototyping & mass manufacturing ✅ Schematic and PCB design review ✅ Circuit Designing, analog, digital, RF, microwave, embedded, high power circuit designing ✅ Circuit Simulation & Analysis ✅ Microcontroller Programming in C language ✅ Reverse engineering from given Gerber files, PCB images, BOM ✅ Problem solving, hardware development, troubleshooting, hardware debugging, design optimization for power, thermal, mechanicals constraints ⭐ PCB Design Software ⭐ ✅ Altium Designer v24 ✅ KICAD v9 ✅ DIP TRACE ✅ EasyEDA ⭐ Circuit Simulation Software ⭐ ✅ LTspice ✅ Proteus ✅ Multisim ✅ Keysight ADS ✅ Ansys HFSS ⭐ Programming ⭐ ✅ MPLAB X IDE ✅ C Language ✅ MATLAB SIMULINK ⭐ 3D Mechanical Design ⭐ ✅ SolidWorks ✅ PTC Creo ✅ Flow Therm ⭐ Power & analog circuit Projects ⭐ Power electronics, op-amp circuits, ADC/DAC interfaces, signal conditioning, piezo electric transducer driver, flyback converter, buck boost converter, laser diode driver, LED light driver, constant current and PWM control of LED lights, Switch Mode Power Supply (SMPS) design, linear power supply design, switching transformer magnetics design, AC load control using TRIAC, DC load control using SCR, H-Bridge driver for BLDC motor control using high power MOSFETS, gate driver circuit, multivibrator circuit using 555 timer, counter circuits, relay control, IGBT circuit for DC to AC inverter, bridge rectifier circuit for AC to DC converter ⭐ Industrial Projects ⭐ Temperature, humidity, weight, pressure sensors circuit design for instrumentation electronics, data logging, real time telemetry monitoring, signal conditioning circuit, feedback control circuits, robotics and actuator control, solenoid valve for flow control, PLC, DCS, SCADA for industrial automation, ⭐ RF Projects ⭐ X-Band and S-Band microwave RF power amplifier using GaN and GaAs devices, preamplifier, Directional coupler, band pass filter, Wilkinson divider, diplexer, microstrip transmission lines impedance matching, Low Noise Amplifier (LNA), mixer, microstrip patch antenna, electronic beam steering T/R modules, I/Q modulator, phased array circuits ⭐ Audio Projects ⭐ Audio Electronics: Amplifiers, filters, DSP-based audio processing, low-noise analog design, analog crossover network, equalizer, stereo and mono dual channel amplifier, phono preamplifier, hydrophone amplifier, MEMS based microphone array design, electret microphone amplifier, CODEC, RCA to XLR converter, phantom power supply, audio power amplifier for 8 and 4 ohm loud speakers, ⭐ Digital Electronics Projects ⭐ Digital logic circuits using discrete ICs, sequential circuit, NAND Flash memory circuit, mixed signal circuit using RF transceiver blocks with SMA connectors, FMC HPC connectors, high speed signaling with FPGA Actel, Xilinx, DSP controller from microchip, microcontrollers from Silabs, PIC, ATMEL C8051, ATMEGA, TMS320F28335, ESP32-C5, ESP32-S3, STM32, RPI, ARDUINO ⭐ Why Clients Choose Me ⭐ ✅ End-to-End Capability — from concept → schematic → PCB → firmware → prototype. ✅ High-Speed PCB Specialist —Impedance controlled routing and EMC/EMI aware designs ✅ Strong Communication — clear documentation, regular updates, and fast responses. ✅ Proven Track Record — 15+ years of hands-on design experience. ✅ Client Satisfaction — long-term ▒▒▒▒▒▒ client relationships, repeat contracts, and 5⭐⭐⭐⭐⭐ feedback

Certifications: CSWA (Certified SolidWorks Associate) CADD CENTER certified "Professional in Product Design" Projects: F5 car design, M... Read more

Certifications: CSWA (Certified SolidWorks Associate) CADD CENTER certified "Professional in Product Design" Projects: F5 car design, Multiple Disk Clutch Plate Design and some classified product designs. Softwares: SolidWorks, CATIA, AutoCAD, ANSYS(FEA).

I'm electronic engineer specialized in high perfomance PCB design and embedded programming. I have fifteen years of experience in PCB designs for high performance boards. The last four and half yea... Read more

I'm electronic engineer specialized in high perfomance PCB design and embedded programming. I have fifteen years of experience in PCB designs for high performance boards. The last four and half years I was working in naval equipment design as echosounders and autopilots applying rigurous EMI standards. In my portfolio you can find pictures of same of my works. I know how mix digital microcontrolers, small signal conditionning and high power in same board without interfering. I use design rules recomended for manufacturers as Analog Devices, Texas Instruments, ST, etc. I have a knowlegments in net sensors area and PCB design for RF applications (2.4GHz) like Zigbee, Bluethoot and WiFi. I can work by tasks or for hour, like you prefer.

I’m a dedicated PCB layout engineer with 7+ years of hands-on experience turning complex schematics into production-ready boards especially in power-hungry and noise-sensitive applications. High-effic... Read more

I’m a dedicated PCB layout engineer with 7+ years of hands-on experience turning complex schematics into production-ready boards especially in power-hungry and noise-sensitive applications. High-efficiency SMPS designs (buck/boost converters, GaN/SiC integrations) and mixed analog/digital circuits, like ADC/op-amp interfaces for sensors and IoT prototypes. I’ve routed dozens of boards where EMI control and thermal management aren’t just checkboxes—they’re what keeps your device reliable from prototype to pilot run.

Advanced electronics engineering and PCB design professional from Argentina

Advanced electronics engineering and PCB design professional from Argentina

I am in the last semester of BS Mechanical Engineering. I love learning and applying technical software in my field. I would like to work on technical projects providing my expertise in CAD modelling... Read more

I am in the last semester of BS Mechanical Engineering. I love learning and applying technical software in my field. I would like to work on technical projects providing my expertise in CAD modelling in CREO and its Analysis in ANSYS. Following are my expertise areas. --CREO * Modelling * Assembly - via Constraints(pins, planer, slot etc) * Pattern on basis of algorithms * Mechanism Applications(motors, springs etc) * Optimization * CNC Manufacturing File Generation --ANSYS * Static Analysis * Modal Analysis * CFD - Wind tunnel tests etc * Explicit Dynamics - Crash Test

I am mechanical engineer, I have experience in robotics designs and softwares to control use Robotics operating system ROS and PIC microcontroller development and programing.

I am mechanical engineer, I have experience in robotics designs and softwares to control use Robotics operating system ROS and PIC microcontroller development and programing.

Signal Integrity Electronics is a small family business. We have been designing electronic devices for inventors, startups and small technology companies since 1997. We specialize in proprietary contr... Read more

Signal Integrity Electronics is a small family business. We have been designing electronic devices for inventors, startups and small technology companies since 1997. We specialize in proprietary controller boards for motor, heater and lighting control. We are experts with micro-controllers (hardware and firmware), networked sensors using copper and radio (Ethernet/WiFi, 802.15.4, proprietary protocols), solar power and battery management. We have done scores of design and prototyping projects for industrial, agricultural and medical applications.

I enjoy binding different branches of engineering together, so that's why I chose to be Mechatronics and control engineer. In Mechatronics, you play with electronics, mechanics, programming, and contr... Read more

I enjoy binding different branches of engineering together, so that's why I chose to be Mechatronics and control engineer. In Mechatronics, you play with electronics, mechanics, programming, and control theory to make superb applications and products. The name of the game is successful integration between different domains, which is a missing skill searched by many engineers, and needed by many Start-ups. I am new here, but I have finished more than 60 freelancing tasks and missions in other sites. I have used PIC microcontroller and Arduino to implement so many projects, and I have even used them to make commercial products. I have the talent of integrating embedded systems with electronics and GUI interface to make a complete application. I used microcontrollers in applications like: Sensors Interfacing (GPS-Motion-Encoder-Light-Temperature-Level-Pressure-Vibration-Position) - CNC machine control - Proportional and on/off temperature controllers - Level controller - Power metering IC interfacing (Experience with ADE7953) - Wifi & IoT - GSM - SD card interfacing. Moreover, I have experinece in making integrated system between Raspberry pi and Arduino for applications that need so. Moreover, I have made many projects that involve signal electronics, power electronics, sensors and measuring systems, and signal conditioning. In addition, I and my team can give you support if you want a PCB design and soldering for your circuit. Regarding control and automation, I am finished master study in automatic control theory, and I have experience in designing embedded controllers - automatic control theory and applications - adaptive control - autotuners - system modeling & simulation- system Identification and parameters estimation - system dynamic response analysis - pole placement controllers - PID controllers - Scilab & Matlab software packages . In addition, I can give you support in PLC systems and ladder diagram programs for controlling industrial processes. In addition, I am using Java as GUI interface for my applications, so I have experience in how to make a java GUI program and to control an embedded system using it. I made several projects where I used Java to monitor sensor values, or to send control commands to electronic circuits. ِAlso I have worked before with Java libraries that serve scientific applications, like EJML matrix algebra library, JArduino (java for arduino) library, JFreeChart plotting library, ImageJ image processing libary, RXTX serial communication library, etc...

Hello! I am an experienced electrical engineer and PCB designer with over 10 years of expertise in developing innovative, reliable, and high-quality electronic solutions across diverse industries. Hol... Read more

Hello! I am an experienced electrical engineer and PCB designer with over 10 years of expertise in developing innovative, reliable, and high-quality electronic solutions across diverse industries. Holding a bachelor’s degree in electrical engineering, I have a proven track record of designing, developing, and deploying advanced circuits, embedded systems, and IoT devices. What I Bring to Your Project: • PCB Design & Layout: Skilled in schematic capture and PCB layout using Altium Designer, Cadence, PADS Mentor Graphics, KiCad, EasyEDA, and RapidHarness. I have extensive experience designing multi-layer (up to 24 layers), high-density, HDI PCBs suitable for medium and high-volume production. I am familiar with manufacturing processes including JLCPCB for PCB fabrication and local support within China to facilitate manufacturing, prototype assembly, and quick revisions. I am committed to providing results on time and maintaining clear, prompt communication with clients. • Microcontroller & Firmware Development: Proficient in programming STM32, ESP32, PIC, AVR, STM8, and STC microcontrollers using Keil, STM32CubeIDE, VSCODE, MPLAB X IDE, and more. I excel in developing firmware for IoT, automation, and embedded systems. • IoT & Wireless Communication: Expertise integrating Bluetooth, BLE, LoRa, NB-IoT, RFID, WiFi (4G), MQTT, and other protocols into embedded systems. • Sensor & Display Systems: Development of color screens, segment displays, touch panels, and interface solutions for user-friendly product experiences. • Communication Protocols: Extensive experience with I2C, SPI, UART, CAN, RS232/485, Modelbus RTU, IR, RF (433/315 MHz, 2.4G, 4G, LoRa). • Reverse Engineering & Troubleshooting: Capable of analyzing, debugging, and optimizing complex circuits. • Power & Multimedia Systems: Power management circuits, LED lighting, audio devices, sensors, and multimedia integration. • Support for China Local Manufacturing(PCBWAY, JLCPCB): In addition to design, I offer local support within China to facilitate manufacturing, prototype assembly, and quick revisions. This ensures smooth collaboration and shorter lead times Why Work With Me: I am passionate about delivering precise, innovative, and reliable designs tailored to your specific needs. I prioritize quality, efficiency, and clear communication to ensure your project’s success — from prototype to production. I am committed to providing results on time and responding promptly to any client inquiries, ensuring smooth and efficient collaboration.

Hello, I’m Bryan, an experienced electrical designer and CAD draftsman with over 17 years in the field. Based in Valenzuela City, Philippines, I have a strong background in electrical design, project... Read more

Hello, I’m Bryan, an experienced electrical designer and CAD draftsman with over 17 years in the field. Based in Valenzuela City, Philippines, I have a strong background in electrical design, project management, and drafting for both renovation and new construction projects. My expertise includes developing comprehensive electrical plans, conducting design analysis, and ensuring compliance with utility standards. Throughout my career, I’ve had the opportunity to work on significant projects, including the King Abdulaziz Center for World Culture and the King Abdullah Financial District Monorail in Saudi Arabia. Since 2016, I’ve been freelancing, providing tailored electrical design solutions for commercial, residential, and industrial clients. I’m proficient in a range of software, such as AutoCAD, Revit MEP, and I also have a passion for programming languages like C++, Java, and JavaScript, which allows me to seamlessly integrate technology into my design work. I hold a degree in Computer Engineering from AMA Computer University, complemented by additional training in Autodesk Revit MEP, web development, and AutoCAD. I am passionate about applying my skills, embracing new challenges, and continuously improving my knowledge to deliver exceptional results for my clients.

I am Devesh Kumar Patel and I am a fresher in the field of Electronics and want to leverage my knowledge in the real world problems. In this Era of Ai, I am able to implement Ai in my role.

I am Devesh Kumar Patel and I am a fresher in the field of Electronics and want to leverage my knowledge in the real world problems. In this Era of Ai, I am able to implement Ai in my role.

Electronic Engineer with strong experiences with Schematics, PCB, FPGA and Firmware. 1. Schematics and PCB Tool : Altium Designer(9, 14, 16, 17, 19, 20) Main Work : Making SCH&PCB Lib, Design Schemati... Read more

Electronic Engineer with strong experiences with Schematics, PCB, FPGA and Firmware. 1. Schematics and PCB Tool : Altium Designer(9, 14, 16, 17, 19, 20) Main Work : Making SCH&PCB Lib, Design Schematics and ERC check, PCB Layout and Routing, DRC check, BOM, Generating Fabrication. Routing Skills : DDR3, HDMI, MDI, GMII/RGMII YCbCr, RGB, USB2.0/3.0, MIPI DSI, CSI, LVDS, etc. 2. FPGA Tool : Vivado, Xilinx ISE, Quartus and ModelSim Main Languages : Verilog and SystemVerilog Developed Cores : UDP, I2C, SPI, UART, AXI interface cores, MIG, LDPC, BCH, OFDM 3. Firmware Tool : Ubuntu, Raspbian, Arduino IDE, Keil, SystemWorkBench, STMCubeMx, Xilinx SDK, IAR, MPLABX, nRF SDK, Segger Studio, MCUXpresso and so on. Main Works : Embedded Product, IoT Product, Automatic Control Product and so on.

Highly committed results-driven chartered engineer with 20+ years of experience in industrial engineering and Technical Operations. Key areas of expertise in bespoke materials handling, chemical proc... Read more

Highly committed results-driven chartered engineer with 20+ years of experience in industrial engineering and Technical Operations. Key areas of expertise in bespoke materials handling, chemical process and waste water treatment industries. I am able to lead multi-disciplinary teams, take ownership on projects, achieving key objectives such as time, cost, safety and quality.

PCB Design Engineer with 7 years of hands-on experience in analog and digital hardware design at the circuit board level. Also, have a strong mechanical aptitude and have worked in a machine shop envi... Read more

PCB Design Engineer with 7 years of hands-on experience in analog and digital hardware design at the circuit board level. Also, have a strong mechanical aptitude and have worked in a machine shop environment and well as a mechanical engineer. I like to peruse a career, which utilizes both my electronics mechanical abilities. - Core Skills - • Experience in PCB Designing, Library Development, Schematic capture using Altium/ Siemens Xpedition/Cadence Allegro/Zuken CR-8000/PADS and able to learn new tool on requirement • Experience in High-Speed digital design and low noise PCB design • Experience with any 3D Solid Modeling Software (SolidWorks/AutoCAD/SolidWorks Electrical) • Firmware development of MCU(PIC, STM32, ATMEGA)

Thank you for visiting my profile. I'm Engr. Muhammad Uzair, a hardware and firmware engineer with 6+ years of experience delivering production-ready electronic solutions. I specialize in: - Multil... Read more

Thank you for visiting my profile. I'm Engr. Muhammad Uzair, a hardware and firmware engineer with 6+ years of experience delivering production-ready electronic solutions. I specialize in: - Multilayer PCB design (up to 8 layers) — signal integrity, RF, IoT, and power electronics - Power electronics design — DC-DC and AC-DC conversion circuits - Firmware development for STM32, dsPIC, ESP32/ESP8266 with UART, SPI, I2C, CAN, USB, and MODBUS - RF circuit design — filters, antenna tuning, and wireless systems From schematic capture to Gerber files and working prototype — I manage the full design cycle with precision and on-time delivery. Let's bring your ideas to life!

Electronics Engineer specialized in hardware development, PCB design, and embedded systems for industrial, automotive, and medical applications. I have more than 3 years of experience designing elect... Read more

Electronics Engineer specialized in hardware development, PCB design, and embedded systems for industrial, automotive, and medical applications. I have more than 3 years of experience designing electronic products from concept to functional prototype, including schematic capture, PCB layout, simulation, component selection, and hardware validation. My professional experience includes working as a Hardware Engineer and Embedded Systems Engineer, developing reliable electronic solutions focused on manufacturability and real-world deployment. Core expertise: • Multi-layer PCB design (Altium Designer, KiCad, EasyEDA) • Analog, digital, and power electronics design • Embedded systems and microcontroller-based hardware • Circuit simulation and validation (LTspice, Multisim) • BOM creation and component sourcing • Reverse engineering and PCB redesign • Manufacturing-ready documentation (Gerbers, Pick & Place, Assembly files) I am an EasyEDA Certified Professional and experienced in remote collaboration with international teams. My goal is to transform ideas into robust, production-ready electronic products.

From Concept to 3D Reality — Functional, and Ready for Manufacturing or Marketing I help startups and agencies turn their ideas into high-quality 3D models using SolidWorks and Blender, whether it’s... Read more

From Concept to 3D Reality — Functional, and Ready for Manufacturing or Marketing I help startups and agencies turn their ideas into high-quality 3D models using SolidWorks and Blender, whether it’s a mechanical part, a consumer product, or a prototype. 🔶Services I Offer: 🔸Mechanical CAD design using SolidWorks 🔸3D modeling for products, parts, and prototypes 🔸Organic and hard-surface modeling with Blender 🔸High-quality 3D rendering for presentations or marketing 🔸Preparing files for 3D printing, injection molding, or CNC machining 🔷What you'll get: 🔹Clean, precise models with optimized topology 🔹Prototyping with 3D Printing 🔹4K High-Quality Photorealistic images for marketing 🔹Fast turnaround with consistent communication 🧰 Tools I Use: SolidWorks – Mechanical parts, assemblies, DFM Blender – Visualization, animation-ready models I want to build long-term collaborations with clients who value quality, consistency, and reliable support across multiple projects.

Experienced Mechanical Design Engineer with a demonstrated history of working in Mega projects in infrastructure design . Skilled in P&ID , Pipe sizing ,selection, 3D Modelling , Microsoft Word, Compu... Read more

Experienced Mechanical Design Engineer with a demonstrated history of working in Mega projects in infrastructure design . Skilled in P&ID , Pipe sizing ,selection, 3D Modelling , Microsoft Word, Computer-Aided Design (CAD), Revit MEP, and Drawing. Strong engineering professional with a B.SC focused in Mechanical engineering from Higher Technological Institute

I create 3D CAD models in Rhino for practical parts, custom products, and 3D printing. I can turn your sketches, dimensioned drawings, or reference photos with measurements into models ready for the n... Read more

I create 3D CAD models in Rhino for practical parts, custom products, and 3D printing. I can turn your sketches, dimensioned drawings, or reference photos with measurements into models ready for the next step. I can help with: • Custom brackets, mounts, adapters, and replacement parts • Enclosures, covers, and small product models • 3D models based on sketches and drawings • Modifications to existing CAD models • Preparing and splitting models for 3D printing and assembly • Decorative elements, reliefs, and custom gift items My background combines CAD modeling with hands-on experience in 3D printing, CNC machining, laser cutting, and finishing. I consider wall thickness, clearances, assembly, and production constraints while modeling. I work primarily in Rhino and can provide 3DM, STEP, STL, and other formats depending on the project. Small, clearly defined projects and one-off tasks are welcome. Send me your references, dimensions, and intended use so we can agree on the scope and deliverables.

Im a product design engineer with a master’s degree in interior design, from IED MILAN, passionate about creating functional and aesthetic spaces. I’ve worked with various design companies and interio... Read more

Im a product design engineer with a master’s degree in interior design, from IED MILAN, passionate about creating functional and aesthetic spaces. I’ve worked with various design companies and interior design studios, developing furniture and interior product designs using 3D modeling, rendering, and hands-on manufacturing processes. I also have experience in photorealistic 3D visualization for marketing, having worked as a marketing coordinator in a home furniture company where I created high-quality renders for direct-to-consumer sales. In addition, I spent a year as a designer and sales representative, promoting home furniture products directly to end clients—blending design knowledge with a strong client-oriented approach.

Passionate interior designer with experience in creating spaces that blend functionality with aesthetics. I specialize in residential and commercial projects, focusing on solutions that meet clients'... Read more

Passionate interior designer with experience in creating spaces that blend functionality with aesthetics. I specialize in residential and commercial projects, focusing on solutions that meet clients' specific needs. My work spans from conceptual development to material and furniture selection, consistently delivering results that exceed expectations. Additionally, I excel in 3D visualization and creating realistic renderings to help clients visualize their projects. Committed to providing high-quality service, meeting deadlines, and creatively overcoming challenges, I am ready to collaborate with you in transforming spaces through interior design.

I am a passionate Mechanical Engineer with a keen interest in the Computer-Aided Design domain. Certified with a Degree in Mechanical Engineering from Anna University. Over the last 5+ months, I have... Read more

I am a passionate Mechanical Engineer with a keen interest in the Computer-Aided Design domain. Certified with a Degree in Mechanical Engineering from Anna University. Over the last 5+ months, I have completed various Industry Relevant Projects. Currently, I am pursuing a Master's Certification Program In Design Engineering at Skill-Lync, specializing in 3D Solid Modeling, Surface Modeling, Geometric Dimensioning and Tolerancing, Automotive BIW & Plastic Design. Also Currently, I am doing an Internship as an "Engineering Intern" and working on Industrial Projects. I have strong experience in CAD tools such as Siemens NX, Solidworks & also have a good knowledge of GD&T.