Staff Engineer – Stack Integration

Ohmium International, Inc.; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Ohmium International, Inc. is looking for a Staff Engineer – Stack Integration in Bengaluru. This role requires leading the integration of electrolyzer stack components like MEA and PTL, while ensuring optimal performance through defined stack compression strategies and validation tests.

The ideal candidate should possess a Mechanical or Chemical background with 5 to 10 years of experience in similar systems. Strong expertise in load transfer mechanisms and gasket sealing is crucial for this position.

Qualifications

• 5 to 10 years of experience in Electrolyzer, fuel cell, or similar systems.
• Mechanical integration of multi-layer assemblies.
• Ability to interpret stress-strain curves.

Responsibilities

• Lead integration of electrolyzer stack components for optimal performance.
• Define and optimize stack compression strategy and assembly sequences.
• Design validation tests for compression and pressure cycling.

Skills

Stack compression mechanics

Load transfer through layered structures

Torque-preload relationships in bolted joints

Hydraulic press assembly processes

Gasket sealing mechanics

Porous transport layer (PTL) compression characteristics

Education

B.E or M.E in Mechanical or Chemical or Material science

Job description

## Staff Engineer – Stack IntegrationApplylocations: Bengaluru, Indiatime type: Full timeposted on: Posted Todayjob requisition id: R-101082**Job Description:****Key Responsibilities*** Lead the integration of multi-layer electrolyzer stack components (MEA, PTL, gaskets, bipolar plates) to ensure proper fit, function, and performance.* Define and optimize stack compression strategy, including compression windows, tolerances, and assembly sequences.* Analyse and control load transfer mechanisms across layers under hydraulic pressing and bolt torquing conditions.* Ensure uniform contact pressure distribution to balance sealing integrity, electrical contact resistance, and component durability.* Evaluate mechanical behaviour of layers (elastic/plastic deformation, creep, stress relaxation) under assembly and operating conditions.* Improve pressure handling capability of the stack, including resistance to leakage, deformation, and mechanical failure.* Correlate mechanical compression with electrochemical performance (efficiency, voltage losses, degradation).* Develop and use FEA models to predict stress, strain, and contact pressure distribution across the stack.* Design and execute validation tests (compression mapping, torque-tension, leak and pressure cycling tests).* Collaborate cross-functionally to ensure design robustness, manufacturability, and scalability of stack integration solutions.**Required Qualifications*** B.E or M.E in Mechanical or Chemical or Material science background* 5 to 10 years of experience required in Electrolyzer, fuel cell, or similar electrochemical stack systems or EV systems* Mechanical integration of multi-layer assemblies.* Strong understanding of: + Stack compression mechanics + Load transfer through layered structures + Torque-preload relationships in bolted joints* Experience with: + Hydraulic press assembly processes + Gasket sealing mechanics and material behaviour + Porous transport layer (PTL) compression characteristics* Ability to interpret:* Stress-strain curves* Contact mechanics* Nonlinear material behaviour.We are seeking a highly skilled Senior Stack Integration Engineer to lead the integration and optimization of electrolyzer stack architectures. This role focuses on ensuring robust mechanical, electrochemical, and pressure-performance integration across stack layers to achieve superior durability, efficiency, and operability. The ideal candidate will have deep expertise in load transfer mechanisms, compression behaviour, and torque-induced sealing performance, along with a strong understanding of electrochemical stack physics.Ohmium is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.