Harness Engineer

Exponent Energy; Bengaluru; Hybrid; INR 900,000 - 1,300,000; Full time

Job summary

Exponent Energy in Bengaluru is seeking engineers to design wiring harnesses for EV battery and charging applications, ensuring reliability and compliance with automotive standards. You will create 2D drawings, BOMs, and define crimping and routing strategies while collaborating with electrical, mechanical and manufacturing teams.

Experience with Rapid Harness/Solidworks and knowledge of EV systems are valuable as we push for safer, scalable energy solutions in our e^pack and e^pump ecosystem,

Qualifications

• Strong understanding of electrical fundamentals (current carrying capacity, voltage drop, insulation, derating).
• Hands-on knowledge of cable types (PVC, XLPE, XLPO, shielded, high-voltage).
• Experience in crimp terminal selection, crimping processes, failure modes.
• Good understanding of connector systems (automotive connectors, sealing classes, IP ratings).
• Ability to think from first principles rather than relying on catalogs or legacy designs.
• Familiarity with wiring harness design tools (e.g., Rapid Harness, Solidworks).
• Experience with automotive or EV systems preferred.

Responsibilities

• Design wiring harnesses for Electric Vehicle, Battery and Charger applications.
• Perform cable selection based on current rating, voltage class, temperature, flexibility, and environmental conditions.
• Select appropriate crimp terminals, lugs, and connectors based on electrical, mechanical, and reliability requirements.
• Create 2D harness drawings, schematics, and BOMs.
• Define crimping specifications, wire routing, protection, and sealing strategies.
• Work closely with electrical, mechanical, and manufacturing teams to ensure design feasibility and ease of assembly.
• Validate designs through DFMEA, testing, and field feedback.
• Ensure compliance with automotive standards (ISO, AIS, LV, etc.) and safety requirements.
• Support prototype builds, troubleshooting, and root cause analysis of field issues.

Skills

Electrical fundamentals

Cable types

Crimp terminals

Connectors

First principles thinking

Wiring harness design tools

EV systems

Tools

Rapid Harness

Solidworks

Job description

You’ll be working with the Research and Development 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), e^Port (charging connector), e^Plug (charging connector) and e^pump (charging station) which together unlock 15-minute rapid charging.

Exponent’s philosophy: Break. Believe. Build.

There’s no playbook for disruption. The only way to create a radical future is to continuously break, believe and build.
Break assumptions and thumb rules.
Believe in the process, the team, and through failures.
Build fast, passionately, and with first-principles thinking

Key Responsibilities

Key Responsibilities:

• Design wiring harnesses for Electric Vehicle, Battery and Charger applications.
• Perform cable selection based on current rating, voltage class, temperature, flexibility, and environmental conditions.
• Select appropriate crimp terminals, lugs, and connectors based on electrical, mechanical, and reliability requirements.
• Create 2D harness drawings, schematics, and BOMs.
• Define crimping specifications, wire routing, protection (conduits, tapes, grommets), and sealing strategies.
• Work closely with electrical, mechanical, and manufacturing teams to ensure design feasibility and ease of assembly.
• Validate designs through DFMEA, testing, and field feedback.
• Ensure compliance with automotive standards (ISO, AIS, LV, etc.) and safety requirements.
• Support prototype builds, troubleshooting, and root cause analysis of field issues.

Required Skills:

• Strong understanding of electrical fundamentals (current carrying capacity, voltage drop, insulation, derating, etc.).
• Hands-on knowledge of cable types (PVC, XLPE, XLPO, shielded cables, high-voltage cables).
• Experience in crimp terminal selection, crimping processes, and failure modes.
• Good understanding of connector systems (automotive connectors, sealing classes, IP ratings).
• Ability to think from first principles rather than relying only on catalogs or legacy designs.
• Familiarity with wiring harness design tools (e.g., Rapid Harness, Solidworks).
• Experience with automotive or EV systems preferred.

What Matters at Exponent

• Quality of work and attention to detail
• Structured problem-solving approach
• Discomfort with mediocre solutions
• Resilience and learning mindset through failures

About Us

Exponent simplifies energy for EVs.

Co-founded by Arun Vinayak (Founding Partner & Former CPO, Ather Energy) and Sanjay Byalal (Former Hardware Strategic Sourcing & Cell Strategy Lead, Ather; Former Supply Chain Lead, HUL), Exponent is solving EV energy challenges by building the e^pack and e^pump, enabling 15-minute rapid charging.

With a 200+ strong team of passionate builders, Exponent is one of the most experienced EV teams in India — and we’re looking for more builders to help us scale.