Senior Technician - Cell Testing

Ubifly Technologies Pvt Ltd; Chennai District; On-site; INR 600,000 - 1,000,000; Full time

Job summary

Ubifly Technologies Pvt Ltd in Chennai seeks a Senior Technician for Cell Testing to lead our cell validation lab. You will execute daily tests, own lab setup, maintenance and readiness of infrastructure, and ensure safe, high-fidelity data for our aircraft development pipeline.

You will implement complex electrochemical protocols (RPT, HPPC, capacity checks, cycle life, thermal mapping), maintain fixtures for cylindrical, pouch and prismatic cells, operate Neware or Arbin testers, and safeguard

Qualifications

• 4–5 years hands-on battery test lab experience
• Strong fixture design and troubleshooting skills
• Experience with Neware or Arbin battery testers and safety cut-offs
• Solid understanding of Li-ion cell behavior and safety protocols
• Experience with tests: RPT, HPPC, capacity checks, cycle life, thermal mapping

Responsibilities

• Interpret test profiles and configure electrochemical test protocols
• Maintain and upgrade lab infrastructure, fixtures, and space for multiple cell chemistries
• Design, fabricate, and maintain cell holders and test jigs for cylindrical, pouch, and prismatic cells
• Operate Neware or Arbin testers with proper calibration and environmental chamber synchronization
• Monitor data capture and ensure data integrity across thousands of test cycles
• Assist engineers in failure analysis by correlating lab inspections with test trends
• Support cell abuse testing and scale results from cell to pack level
• Plan tests, ensure sample readiness and safe storage before/after tests

Skills

Protocol execution

Fixture & fixtures design

Hardware familiarity

Li-ion safety knowledge

Tools

Neware testers

Arbin testers

Job description

As the Senior Technician for Cell Testing, you will be the hands-on anchor and operational manager of our cell validation laboratory. You will not only execute daily testing routines but also own the setup, maintenance, and technical readiness of our laboratory infrastructure. Your core focus will be translating engineering requirements into physical test setups, maintaining adaptive jigs and fixtures, and ensuring our lab runs continuously and safely to feed high-fidelity data into our aircraft development pipeline.

What You Will Do

Protocol Implementation & Execution: Interpret engineering test profiles and independently configure, program, and execute advanced electrochemical test protocols (RPT, HPPC, capacity checks, cycle life, thermal mapping) on Lithium-ion cells.

Lab Ownership & Capability Evaluation: Maintain the entire cell testing laboratory in pristine, calibrated condition. When new cell chemistries or form factors arrive, evaluate the physical space, electrical hookups, and thermal requirements needed to test them safely.

Jig & Fixture Management: Design, fabricate, and maintain robust test jigs, custom cell holders, and contact fixtures. Ensure the lab can seamlessly adapt to a variety of cell form factors (cylindrical, pouch, prismatic) with minimal downtime and zero contact resistance.

Equipment Operation: Program and run Neware or Arbin battery/cell testers, ensuring channels are properly allocated, calibrated, and synchronized with environmental chambers.

Data Control & Integrity: Monitor and ensure clean data capture across thousands of test cycles, managing file exports, channel cycle logs, and initial data sorting.

Failure Analysis Support: Assist engineers in isolating and documenting physical cell anomalies or field failures, correlating physical laboratory inspections with test data trends.

Cell abuse testing : Assist in scaling cells level test results to packs level interpretations. Cell abuse testing - ARC (Accelerated Rate Calorimetry), FTRC - Fractional Thermal Runaway Calorimetry).

Test planning & execution : Planning cell tests, ensuring cell sample readiness, test setup readiness, ensuring safe storage of cells before & after tests.

What We Are Looking For (Must-Haves)

Experience: 4 to 5 years of technical, hands-on experience working in a battery test lab, cell characterization facility, or cell manufacturing environment.

Fixture & Mechanical Savvy: Proven track record of building, maintaining, and troubleshooting electrical test fixtures, wiring connections, and custom mechanical jigs for various cell types.

Protocol & Hardware Familiarity: Strong working exposure to programming and operating Neware or Arbin cell testers, including setting up safety cut-offs and multi-step test scripts.

Cell Chemistry & Li-ion Safety Knowledge: Solid foundational understanding of Lithium-ion cell behavior, electrical characteristics (voltage, current, internal resistance), and strict hazard containment protocols.

Cell Testing protocols : Excellent understanding of : Reference Performance Tests (RPT), Hybrid Power Pulse Characterization (HPPC), Capacity estimations, Cyclic ageing / Calendar ageing characterization, Power map characterization, Incremental Capacity Analysis (dQ/dV)

Great understanding of handling different types of Li-ion cells / Supercapacitors & solid awareness of risks associated with working around them.

Preferred Skills (Good-to-Have)

Experience in correlating physical field failures (e.g., leakage, swelling, venting) with electrical test data curves.

Basic machining or 3D printing experience for fast prototyping of cell fixtures and test brackets.