INNOPHASE is a rapidly growing communications semiconductor startup with headquarters located in San Diego, CA. It is an exciting time to join Innophase and work with a brilliant team of engineers to design innovative wireless products and solutions for IoT and 5G. If you want to make a big impact with a small team and are looking to expand your skill set, this is the place.

As a Wireless System Engineer, you will be working in a design engineering team in modeling 5G Tx/Rx PHY Tx/Rx blocks.

Key Responsibility:

• Evaluate various algorithms and architectures by implementing Matlab models and analyze performance trade-offs
• Collaborate with design engineers on microarchitecture and generate test vectors for design verification
• Work with design engineers to come up with comprehensive test plans and debug issues.
• Design and develop signal processing/communication algorithms for wireless MIMO system in 5G ORAN
• Modeling of baseband/passband DSP blocks in floating and fixed point formats for optimum performance/area trade-offs
• Integrate IP models at SOC level and conduct C/C++ and Matlab simulations to study system performance
• Generate reference model and test vectors in cycle true & bit accurate format for digital IP and SOC verification
• Work closely with the digital designer with implementation that meets system requirements
• Work with digital design engineer to debug issues found in verification
• Define IP functional requirements and specifications at system level
• Participate in post-silicon bring-up, performance characterization and optimization
• Field testing and verify product performance using lab instruments

Job Requirements

• PhD with 3+ years of wireless system development experience or MSEE with 5+ years
• Proficient in signal processing analysis/modeling skill with Matlab, Python or C/C++
• In-depth understanding on wireless communication system (OFDM/MIMO, etc),
• In-depth understanding of digital filter design in floating and fixed point model.
• Experience in working with digital design team for RTL verification against Matlab models
• Strong understanding of communication theory & signal processing related algorithms design (such as timing recovery, signal estimation and detection, MIMO signal estimation and detection, automatic gain control, channel estimation, equalization, coding theory, beamforming, etc.)
• Deep understanding of components/modules composited of wireless communication systems, and the possible impairments from those components, and the corresponding calibration and impairment reduction methods/algorithms, digital pre-distortion, PAPR reduction algorithms, Tx power control, etc.
• Clear communication and presentation skills with MS office tools

Desired Skills:

• Experience in modem architecture, microprocessor architecture, hardware and software control are a plus.
• Experience and knowledge on High Level Synthesis (HLS), silicon prototyping, emulation systems, and virtual platforms is a plus.
• Experience on bring up real silicon in lab, being able to efficiently use lab equipment (such as spectrum analyzer, signal generator, power meter, etc) is a plus.
• Knowledge in existing wireless communication protocols is a plus: 5G/LTE/WCDMA, WiFi(802.11a/b/g/n/ac/ax/b, Bluetooth