Senior Staff Engineer - EVSE FW

5 Months ago • 7-12 Years • Research & Development

Job Summary

Job Description

Enphase Energy seeks a Senior Staff Engineer for its EVSE FW team to develop firmware for its new Enphase IQ EVSE product line. Responsibilities include designing and implementing embedded firmware using C++/C on an RTOS or bare-metal environment; collaborating with marketing, hardware, and systems teams to define product requirements and behavior; designing algorithms and state machines for Functional Safety & Metrology; adapting existing code and architectures; working on projects from concept to implementation; testing and troubleshooting; and documenting engineering requirements and solutions. The role requires strong experience in firmware development, ARM microcontrollers, C++/C programming, RTOS concepts, and communication protocols. Familiarity with functional safety analysis and relevant EVSE standards is essential.

Must have:

7-12 years firmware development experience
C++/C programming expertise
ARM microcontroller experience
RTOS and bare-metal development
Functional safety analysis knowledge

Good to have:

STM32 Cortex-M family experience
Zephyr development experience
OCPP knowledge
IoT gateway and cloud communication experience
Understanding of UL 2594, UL 2231, UL 1998, SAE J1772, CCS, ISO 15118

8 skills required

8 skills required for this role

Add these skills to join the top 1% applicants for this job

cpp

algorithms

github

data-structures

git

design-patterns

keil

oops

Job Details

Description

Enphase Energy is a global energy technology company and leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, Enphase transformed the solar industry with our revolutionary microinverter technology, which turns sunlight into a safe, reliable, resilient, and scalable source of energy to power our lives. Today, the Enphase Energy System helps people make, use, save, and sell their own power. Enphase is also one of the fastest growing and innovative clean energy companies in the world, with approximately 68 million products installed across more than 145 countries.

We are building teams that are designing, developing, and manufacturing next-generation energy technologies and our work environment is fast-paced, fun and full of exciting new projects.

If you are passionate about advancing a more sustainable future, this is the perfect time to join Enphase!

About the role

This position is within our EVSE Engineering group, where you will work in a small team to develop firmware for the new Enphase IQ EVSE product line, a series of smart EV Charging products which will integrate with energy generation, energy storage and energy management products to enable a whole new facet of the Clean Energy revolution. You will be working in a multi-site team and expected to interface across multiple functions.

What you will do

Design and implement embedded firmware on an RTOS and/or bare-metal environment for smart EV Charger functions using C++/C
Work with the marketing, hardware, and systems teams to specify the requirements and behavior of new products
Design and implement algorithms and state machines for Functional Safety & Metrology
Quickly learn about and adapt existing code and architectures into custom applications
Carry design tasks from concept to implementation
Work with cross functional teams to test and troubleshoot issues
Self-motivated individual with the ability to work under minimal supervision

Who you are and what you bring

BE/B.Tech/M.S/M.Tech/PhD in Electronics / Computer Science / Electrical Engineering
Minimum 7 to 12 years of hands-on experience in firmware development and debugging in ARM based microcontrollers
Good understanding of C++/C programming, data structures,design patterns, oops, RTOS concepts and microcontroller internals
Familiarity with evaluating CPU versus hardware processing requirements and trade-offs for cost-effective designs
Good written and verbal communication skills
Ability to contribute to firmware architecture definition and design trade-off analysis
Experience designing custom communication protocols and data models
Understanding of diagnostics, logging, and event-driven systems
Understanding of Hard Real-Time bare-metal development
Familiarity with development tools such as Git, Keil, GCC, JTAG, Make, etc.
Ability to test code and hardware both with and without external test equipment such as oscilloscopes, power meters, etc.
Ability to document engineering requirements, document solutions, and test new firmware designs.
Familiarity with functional safety analysis and strong electrical engineering fundamentals
Exposure to metering algorithms and understanding of AC power flow.
Experience in IoT Gateways and cloud communication (OCPP knowledge a bonus)
STM32 Cortex-M family development experience
Zephyr development experience
Knowledge of relevant worldwide standards and regulations for EVSE equipment – UL 2594, UL 2231, UL 1998, SAE J1772, OCPP, CCS, ISO 15118