Exponent Energy Private Limited

Firmware Engineer – Charging Station and BMS

Exponent Energy Private Limited


4 years

₹ Not Disclosed

9 months ago

Full Time

Job Description

You’ll be working with the product and engineering team.

This team runs on coffee with an infectious passion to build products that have never been built before. Our Flexible Energy Stack consists of the e^pack (battery pack) and e^pump (charging station) which together unlock 15-minute rapid charging.

Our philosophy: Break. Believe. Build
Break stuff. Break assumptions. Break the thumb rule.
Believe in the team. Believe in the process. Believe through failures.
Build fast. Build passionately. Build to simplify.

What you will do:

Fast charging a battery pack requires the charger and the battery to communicate with each other perfectly and work in sync. This is achieved when 3 things come together:

  • Great battery pack design
  • Reliable & accurate hardware
  • Innovative & efficient firmware and algorithms (battery and charging algorithms)

Software and hardware are critical to the efficient working of a well-designed battery pack. At Exponent, we take our software very seriously, and to complement it, we build our own hardware to the highest standards – fully in-house.

As a firmware engineer at Exponent you will work closely with hardware (it’s like a dance – you need both partners to be in sync with each other), understand baseline capabilities, and boost it 10X.


  • Define architecture.
  • Develop Algorithms.
  • Take code to production.
  • Experience in building charging + Battery (BMS) Algorithms.
  • Work closely with the hardware team, drive necessary hardware changes.

The ideal candidate requires:

  • Experience in taking firmware Design from concept to production
  • Good understanding of Microcontrollers and Microprocessors – GPIO’s, ADC, etc
  • Hand-on Experience in C and C++ programming
  • Expertise in developing communication protocols. Relevant protocols being I2C, Serial Peripheral Interface (SPI), USB, General-purpose input/output (GPIOs), Controller Area Network (CAN bus)
  • Experience with Model-based development is an added advantage
  • Hands-on experience in working with hardware products
  • Should have experience in working and setting up HIL and SIL Test rigs

We are looking for builders with a certain mindset: Build. Fail. Learn. Repeat.

What matters less:

  • Years of experience
  • Formal qualification

What matters more:

  • Quality of work
  • Approach towards problem-solving
  • Dissatisfaction towards mediocre work
  • Resilient attitude to bounce back after failing

About Us

Exponent simplifies energy for EVs.

Co-founded by Arun Vinayak (Ather Energy’s Founding Partner & Former Chief Product Officer) and Sanjay Byalal (Former hardware strategic sourcing and cell strategy lead, Ather and Former Supply Chain Lead, HUL), Exponent focuses on solving two sides of the energy problem by building the e^pump (charging station) and e^pack (battery pack) which together unlock 15-min rapid charging. The 90+ strong team of passionate builders has a ton of EV experience and is currently looking for more builders to join one of the best EV teams in India to build & scale Exponent.

Key Responsibilities
Skill & Experience
You have at least 4 Years of Experience BMS Algorithms Microcontrollers GPIO CAN Bus OTA

Job Overview


No. 76/2 Site No. 16, Khata No. 69, Singasandra Village, Begur Hobli, Bengaluru, Karnataka - 560068 Bengaluru, Karnataka, India, 560068

Date Posted

Sep 02, 2022

Offered Salary

₹ Not Disclosed


4 years


Bachelor Degree


Embedded Systems
Job Location