PCB / Electronics Design Engineer Cover Letter Examples & Writing Guide

Dear Hiring Manager, I am writing to express my strong interest in the Senior PCB Design Engineer position at Apple. With 8 years of experience designing complex multi-layer PCBs for consumer electronics and expertise in high-speed digital design, I am excited to contribute to the world's most innovative products. In my current role as Lead PCB Engineer at Samsung, I have successfully: • Designed 16+ layer PCBs for flagship smartphones with tight space constraints • Implemented high-speed interfaces including PCIe Gen4, USB 3.2, and MIPI DSI/CSI • Performed signal integrity analysis and impedance matching for DDR4/DDR5 memory interfaces • Built power distribution networks with multiple voltage rails and low noise • Conducted EMI/EMC testing and implemented design fixes for regulatory compliance • Collaborated with mechanical teams on component placement and thermal management Apple's commitment to creating magical user experiences through elegant hardware design inspires me. I am particularly excited about contributing to next-generation consumer electronics. I would welcome the opportunity to discuss how my PCB design expertise can contribute to Apple's innovation. Sincerely, Robert Chen

Dear Hiring Team, I am excited to apply for the PCB Design Engineer position at Tesla. With 6 years of experience in automotive electronics and expertise in AEC-Q200 compliant design, I am eager to help advance electric vehicle technology. At Bosch, I have designed automotive PCBs including: • Designed electronic control units (ECUs) for powertrain and ADAS applications • Implemented automotive-grade components meeting AEC-Q100/Q200 standards • Built high-voltage power electronics for electric vehicle inverters and chargers • Performed thermal analysis and designed cooling solutions for high-power circuits • Ensured functional safety compliance with ISO 26262 standards • Conducted environmental testing including temperature, vibration, and humidity Tesla's mission to accelerate the world's transition to sustainable energy inspires me. I am particularly excited about working on electric vehicle power electronics and battery management systems. I look forward to discussing how my automotive PCB expertise can contribute to Tesla's vision. Best regards, Jennifer Martinez

Dear Hiring Manager, I am thrilled to apply for the PCB Design Engineer position at Intel. With 7 years of experience designing server and datacenter hardware, I am excited to contribute to enterprise computing platforms. In my role as Senior PCB Engineer at Dell EMC, I have: • Designed motherboards for rack-mount servers with dual-socket Intel Xeon processors • Implemented high-speed memory interfaces supporting DDR5 and HBM2 • Built PCIe Gen5 switching and routing for GPU and accelerator connectivity • Designed power delivery networks supporting 400W+ CPUs with VRM design • Performed SI/PI simulations using Cadence Sigrity and Ansys HFSS • Collaborated with board fabrication and assembly vendors for DFM optimization Intel's leadership in datacenter technology and commitment to advancing computing inspire me. I am particularly excited about working on next-generation server platforms. I would welcome the opportunity to discuss how my server PCB expertise can contribute to Intel's datacenter solutions. Sincerely, Michael Park

Dear Hiring Team, I am writing to apply for the PCB Design Engineer position at SpaceX. With 6 years of experience in aerospace and defense electronics, I am eager to help make life multiplanetary through innovative hardware design. At Lockheed Martin, I have designed PCBs including: • Designed flight control and avionics boards for space applications • Implemented radiation-hardened design techniques for harsh space environments • Built redundant systems for mission-critical aerospace electronics • Performed derating analysis and worst-case circuit analysis • Ensured NASA workmanship standards compliance (IPC-A-610, J-STD-001) • Conducted qualification testing including thermal vacuum and vibration tests SpaceX's mission to enable human life on Mars and rapid innovation in aerospace inspire me. I am particularly excited about working on Starship avionics and Dragon spacecraft. I look forward to discussing how my aerospace PCB expertise can contribute to SpaceX's missions. Best regards, Sarah Williams

Dear Hiring Manager, I am excited to apply for the PCB Design Engineer position at Cisco. With 7 years of experience designing networking hardware and expertise in high-speed serial links, I am eager to contribute to networking infrastructure. At Juniper Networks, I have built network hardware including: • Designed line cards for 400G/800G Ethernet switches • Implemented SerDes interfaces and backplane design for multi-Tbps throughput • Built timing circuits with low-jitter clock distribution networks • Designed optical transceiver modules and fiber optic interfaces • Performed crosstalk analysis and differential pair routing optimization • Collaborated with signal integrity teams on eye diagram analysis and equalization Cisco's leadership in networking technology and commitment to connecting everything inspire me. I am particularly excited about working on next-generation datacenter switches. I would welcome the opportunity to discuss how my networking hardware expertise can contribute to Cisco's innovations. Sincerely, David Rodriguez

Dear Hiring Team, I am writing to express my interest in the PCB Design Engineer position at Medtronic. With 6 years of experience designing medical electronics and expertise in IEC 60601 compliance, I am excited to create life-saving medical technology. At Abbott, I have designed medical device PCBs including: • Designed implantable cardiac device electronics with miniaturized form factors • Implemented ultra-low-power circuits for 10+ year battery operation • Built biocompatible sensor interfaces and signal conditioning circuits • Ensured medical device regulatory compliance including IEC 60601 and FDA requirements • Designed hermetically sealed electronics for implantable devices • Performed biocompatibility testing and material selection Medtronic's mission to alleviate pain, restore health, and extend life deeply inspires me. I am particularly excited about developing electronics that directly improve patient outcomes. I look forward to discussing how my medical device PCB expertise can contribute to Medtronic's life-saving technologies. Best regards, Lisa Thompson

Dear Hiring Manager, I am excited to apply for the Entry-Level PCB Design Engineer position at Texas Instruments. As a recent graduate with a B.S. in Electrical Engineering from MIT and internship experience in PCB design, I am eager to start my career at a semiconductor leader. During my internship at Analog Devices and senior design project, I have: • Designed 4-layer PCBs using Altium Designer for embedded systems • Implemented power supply circuits with DC-DC converters and LDO regulators • Built analog signal conditioning circuits with op-amps and instrumentation amplifiers • Performed schematic capture, PCB layout, and design rule checking • Conducted board bring-up, debugging, and functional testing • Used oscilloscopes, multimeters, and logic analyzers for circuit validation My academic coursework included circuit design, power electronics, digital systems, and electromagnetics. I am passionate about hardware design and learning new technologies. Texas Instruments' commitment to analog innovation and supporting engineers inspires me. I am particularly excited about learning from experienced PCB designers and contributing to innovative products. I would welcome the opportunity to discuss how my PCB design skills and enthusiasm can contribute to TI's engineering team. Sincerely, Alex Johnson