Principal Engineer – Embedded Firmware

Enphase Energy•Fremont, CA

46d

About The Position

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source. Today, the Enphase Energy System enables users to make, use, save, and sell their own power. Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries. Join our dynamic teams designing and developing next-gen energy technologies and help drive a sustainable future! About the role Enphase is looking for an experienced FW development Engineer to work on our proprietary Power Line Communication (PLC) technology development. In this role, you will develop and optimize digital signal processing (DSP) algorithms and software for narrow band Power Line Communication (PLC) modems. Your expertise will contribute to the advancement of communication technologies and enable efficient and reliable data transmission over power line networks. This position offers an exciting opportunity to work on cutting-edge projects, collaborate with cross-functional teams, and shape the future of PLC modem technology.

Requirements

Bachelors or an advanced degree in Electrical Engineering, Computer Engineering, Computer Science or a related field
15+ years of experience in a similar job function
Strong understanding of
Digital signal processing theory, algorithms, and implementation techniques.
Communication theory, modulation/demodulation techniques, error correction coding, and synchronization methods.
DSP processors, digital filters, fast Fourier transforms (FFT), and adaptive filtering techniques.
Extensive experience with modems and communications standards.
Strong background and working experience developing wired and/or wireless protocol stacks (examples: 6LoWPAN, BLE, MoCA, DOCSIS, 802.11, etc) through the various stages of design, implementation and product deployment.
Ability to implement a MAC layer software design from a protocol specification document.
Ability to assess and efficiently modify existing software architecture and protocol stacks to implement new MAC features.
Proficiency in programming languages such as C, C++
Experience with embedded software/firmware development, including cost- sensitive, resource-constrained hardware environments.
Strong written and oral communication and teamwork skills are required.

Nice To Haves

Experience with narrow band Power Line Communication (PLC) modem concepts, protocols, and standards (e.g., G3-PLC, PRIME, IEEE P1901.x) is advantageous.
Experience of working on pre-silicon platforms such as FPGAs
Environments, tools and methodologies used for ASIC modeling and simulation

Responsibilities

Design, develop, and optimize digital signal processing algorithms for narrow band PLC modems for reliable data communication over power line networks.
Collaborate with cross-functional teams, including hardware engineers, system architects, and firmware developers, to define system requirements and specifications for narrow-band PLC modem development.
Optimize DSP algorithms for noise mitigation, channel equalization, error correction, modulation/demodulation, synchronization, and adaptive filtering to maximize data throughput and reliability.
Analyze and optimize the performance of the MAC layer, including throughput, latency, and reliability, to meet the requirements of specific applications and standards.
Identify and address issues related to interference, noise, multipath propagation, and other impairments affecting PLC communications.
Document your work to facilitate knowledge sharing and maintain accurate project records.
Support system integration efforts, troubleshoot hardware-software interactions, and provide technical assistance during the product development lifecycle.