Qureos Mentor

SwipBox

<div>
 
 
 About the Role -
 
 We are seeking a talented
 
 Hardware Design Engineer (BLE &amp; RF)
 
 who is passionate about wireless connectivity and embedded systems. The ideal candidate will bring a deep understanding of the
 
 BLE protocol
 
 , from stack to hardware, and combine it with practical expertise in debugging, optimizing, and validating BLE designs. You will play a pivotal role in ensuring our BLE-enabled products are robust, secure, and optimized for performance, from
 
 antenna and PCB design review
 
 to
 
 over-the-air packet analysis
 
 to
 
 security compliance
 
 .
 
 
 
 
 
 
 Responsibilities
 
 
 <ul>
 <li>
 Design and develop RF circuits, components, and systems for wireless communication products. Focus on design and validation of devices that use Bluetooth Low Energy (BLE) technology.
 </li>
 <li>
 Perform simulations, evaluate feasibility, and refine designs for enhanced efficiency.
 </li>
 <li>
 Analyze the test data, resolve RF issues, and implement improvements to enhance system performance.
 </li>
 <li>
 Perform simulation, modeling, and validation of RF circuit performance during development stages.
 </li>
 <li>
 Review and critique PCB designs for BLE modules, antennas, and RF paths to ensure optimal signal quality, range, and compliance.
 </li>
 <li>
 Debug and optimize BLE communication at all layers (PHY, Link Layer, GATT, Security), diagnosing issues like connection instability, latency, or interference.
 </li>
 <li>
 Perform detailed
 
 BLE security analysis
 
 , ensuring products comply with best practices for pairing, bonding, key management, and encryption.
 </li>
 <li>
 Capture and analyze BLE air traffic using sniffers (e.g., Nordic nRF Sniffer, Ellisys, or similar) to identify and resolve protocol-level or interoperability issues.
 </li>
 <li>
 Collaborate with hardware, firmware, and software teams to resolve cross-disciplinary issues.
 </li>
 <li>
 Write clear documentation and share findings with engineering teams, advocating for sound RF and BLE practices.
 </li>
 <li>
 Regularly implement best practices and remain informed about the latest developments in RF simulation.
 </li>
 <li>
 Stay current on BLE specification changes, new features (e.g., BLE 5.x/5.4, Periodic Advertising, AoA/AoD), and trends in BLE security and RF design.
 </li>
 </ul>
 
 
 
 
 
 Requirements - Education &amp; Background
 
 
 <ul>
 <li>
 Bachelor's/Master's degree in: Electrical Engineering
 
 ,
 
 Computer Engineering, or related field
 </li>
 <li>
 
 Minimum 3 to 5 years of hands-on experience.
 
 </li>
 <li>
 Skilled in the use of key RF testing equipment such as spectrum analyzers, signal generators, and VNAs.
 </li>
 <li>
 Solid theoretical and practical understanding of
 
 Bluetooth Low Energy protocol stack and architecture (Host &amp; Controller)
 
 .
 </li>
 <li>
 Strong background in
 
 RF fundamentals
 
 as it applies to BLE (impedance matching, antenna design, RF layout considerations).
 </li>
 </ul>
 
 
 
 
 
 BLE-Specific Skills
 
 
 <ul>
 <li>
 Proficient in BLE debugging tools and techniques:
 </li>
 <li>
 Air sniffers (e.g., Nordic nRF Sniffer, Ellisys, Frontline)
 </li>
 <li>
 Protocol analyzers
 </li>
 <li>
 Logging &amp; stack debugging
 </li>
 <li>
 In-depth knowledge of BLE security modes &amp; procedures, including pairing methods, authentication, encryption, and privacy.
 </li>
 <li>
 Understanding of power optimization techniques for BLE communication.
 </li>
 </ul>
 
 
 
 
 
 Hardware/PCB Skills
 
 
 <ul>
 <li>
 Ability to review and critique
 
 BLE-related PCB designs
 
 , with a focus on antenna selection, placement, matching networks, and ground plane considerations.
 </li>
 <li>
 Familiarity with common BLE chipsets and modules,
 
 hands-on experience with Nordic Semiconductor&rsquo;s nRF52/nRF53 series is a big plus
 
 .
 </li>
 <li>
 RF testing and measurement basics (VSWR, return loss, spectrum analysis).
 </li>
 </ul>
 
 
 
 
 
 General Skills
 
 
 <ul>
 <li>
 Strong problem-solving and critical thinking mindset.
 </li>
 <li>
 Ability to communicate technical findings clearly to both technical and non-technical audiences.
 </li>
 <li>
 A team player who collaborates effectively in a multidisciplinary environment.
 </li>
 </ul>
 
 
 
 
 
 Preferred Qualifications (Nice to Have)
 
 
 <ul>
 <li>
 Experience with BLE Mesh, Direction Finding (AoA/AoD), or Bluetooth 5.4 Periodic Advertising with Responses.
 </li>
 <li>
 Familiarity with embedded development toolchains and debugging (e.g., Segger, Keil, GCC, Zephyr RTOS).
 </li>
 <li>
 Knowledge of regulatory compliance for RF devices (FCC, CE, etc.).
 </li>
 <li>
 Hands-on experience tuning and validating antenna performance in an anechoic chamber or similar environment.
 </li>
 </ul>
 
 
</div>

Hardware Design Engineer (BLE & RF)

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Hardware Design Engineer (BLE & RF)