About Yuma & Grinntech We are an Energy-as-a-Service company on a mission to build a sustainable future where transportation is accessible, affordable, and carbon-free. Backed by mobility technology company Magna and India’s largest shared electric micro-mobility player, Yulu, we offer the largest Battery-as-a-Service (BaaS) platform in India for two-wheelers that is helping redefine urban mobility with reliable, convenient, and efficient access to energy. With Grinntech now part of Yuma, we’re set to accelerate battery innovation and sustainable mobility. Together, we will accelerate India’s transition to a cleaner, more sustainable future. HSE Officer Role Summary An HSE officer plays a vital role in ensuring the safety of employees and the environmental sustainability of the company's operations. As an HSE officer, you will have to ensure that an organization complies with relevant health and safety regulations and policies and also promote a safe and healthy work environment for employees. Key Responsibilities Develop and implement all aspects associated with the health & safety and environmental (HSE) management systems at Yuma's Charging and Swapping Facilities. Develop, maintain, and implement HSE policies and procedures in coordination with other departments (including risk assessment, fire evacuation/drills, chemical management, PPE, accident/incident investigation, safety committee electrical safety, LOTO etc. ). Perform periodic HSE inspections (including electrical safety) for charging and swapping facilities. Comply with all relevant HSE standards, laws and regulations (EPA, OSHWC Code, ISO standards, Fire Safety and Magna corporate). Record and report workplace incidents, accidents, or hazard reports and complete investigation based on relevant law and regulations and corporate standards. Implement corrective actions plans by working closely with other departments and provide guidance to department supervisors and managers. Manage all aspects of Yuma's HSE audit, including all open action items, training requirements, records and policy development and implementation. Develop and impart HSE training for employees, contractors, and other relevant groups to create awareness of applicable HSE topics among relevant stakeholders. Identify and document measurable HSE targets and objectives in compliance with relevant HSE standards, laws and regulations (EPA, OSHWC Code, ISO standards, Fire Safety and Magna corporate); Assists management with maintaining a program for achieving targets and objectives and recommending solutions for continuous improvement, as needed. Work closely with other departments within the organization to develop and implement HSE initiatives. Key Requirements Understanding of relevant health and safety regulations and laws, as well as environmental sustainability practices. They should also be knowledgeable about industry-specific safety requirements. Excellent communication, leadership, problem-solving, and critical thinking skills. They should also be detail-oriented, organized, and able to work well under pressure. Proficient in the use of computer software such as Microsoft Office, as well as industry-specific software for tracking incidents and analyzing data. Basic Qualifications 4 to 5 years of experience in a similar field. M.Tech/Post graduate diploma in Industrial safety, or Msc/B Tech degree in the environment. We assure you A friendly culture where you are encouraged to share ideas and opinions. A journey that will challenge and reward you in multiple ways.

Job Title: Maintenance Engineer/Operator Location: Chennai Job Description: Grinntech is a dynamic and innovative full stack lithium battery tech startup committed to power up the electrification of Indian and Global mobility. As part of our ambitious growth plans, we are seeking an experienced Maintenance Engineer for ensuring the smooth operation, upkeep, and repair of all machinery, equipment, and utilities in the Lithium-ion battery manufacturing plant. The role involves preventive maintenance, troubleshooting breakdowns, and improving equipment efficiency to enhance productivity and reduce downtime. Key Responsibilities Preventive & Predictive Maintenance: Develop, implement, and monitor preventive and predictive maintenance schedules for all manufacturing equipment, utilities, and infrastructure. Troubleshooting & Repairs: Diagnose and rectify mechanical, electrical, and automation-related issues to ensure minimal downtime and uninterrupted production. Equipment Calibration & Optimization: Ensure all production equipment is calibrated and optimized for maximum efficiency and longevity. Documentation & Compliance: Maintain detailed records of maintenance activities, spare parts inventory, and compliance with safety and regulatory standards. Spare Parts Management: Monitor and manage inventory of critical spare parts, ensuring availability while optimizing costs. Safety & Compliance: Ensure all maintenance activities adhere to workplace safety protocols and environmental regulations. Continuous Improvement: Identify and implement innovative solutions to enhance equipment performance and reduce maintenance costs. Vendor Coordination: Liaise with equipment manufacturers and service providers for maintenance contracts, spare parts procurement, and technical support. Required Skills & Qualifications: Bachelor's degree / Diploma in Mechanical, Electrical, or Industrial Engineering or a related field. 3-5 years of experience in maintenance roles, preferably in a battery manufacturing, electronics, or chemical processing industry. Valid 'B' or ‘C’ License for Electrical Work is Mandatory. Hands-on experience with maintenance of manufacturing equipment such as mixers, coating machines, drying ovens, formation & testing equipment, and BMS systems. Familiarity with safety standards such as ISO 45001, ISO 14001 guidelines. Ability to work under pressure and handle emergency maintenance situations. Strong analytical, problem-solving, and communication skills. Benefits: Competitive salary and benefits package Opportunity to work in a cutting-edge technology company. Growth and development opportunities within the organization. Collaborative and inclusive work environment.

Job Title: Purchase Lead Location: Chennai Experience: 5-8 years in procurement, vendor management, and supply chain operations, preferably in the battery manufacturing or related industry. About Us: Grinntech is a dynamic and innovative full-stack lithium battery tech startup committed to powering the electrification of Indian and global mobility. We are looking for an experienced and strategic Purchase Manager to lead our procurement and vendor management processes. The ideal candidate will ensure cost-effective, high-quality, and timely sourcing of materials while optimizing supply chain operations. Key Responsibilities: Procurement & Sourcing: Develop and implement purchasing strategies to meet production and business requirements. Identify, evaluate, and negotiate with suppliers to secure cost-effective and quality materials. Ensure timely procurement of raw materials, components, and consumables to support seamless production. Vendor Management & Negotiation: Build and maintain strong relationships with key suppliers and vendors. Conduct vendor audits and assessments to ensure compliance with quality and delivery standards. Negotiate contracts, pricing, and terms to optimize procurement costs and enhance supplier reliability. Inventory & Cost Optimization: Work closely with the PPC and Stores team to maintain optimal inventory levels. Implement cost-saving initiatives without compromising on quality and delivery timelines. Monitor market trends, competitor pricing, and industry developments to improve purchasing strategies. Process & Compliance Management: Ensure procurement processes adhere to company policies, industry standards, and regulatory requirements. Streamline purchasing workflows and introduce best practices to improve operational efficiency. Handle purchase documentation, including purchase orders, contracts, and supplier agreements. Required Qualifications: Education: Bachelor’s degree in Engineering, Supply Chain Management, Business Administration, or a related field. Proficiency in ERP tools (SAP, Oracle, or similar) for procurement and inventory management. Desired Skills: Strong knowledge of supply chain management, procurement strategies, and vendor negotiation. Excellent analytical and problem-solving abilities. Strong communication and interpersonal skills for supplier and internal stakeholder coordination. Ability to manage multiple suppliers and procurement tasks simultaneously. Experience in battery manufacturing or automotive supply chains is a plus.

Job Title: Maintenance Engineer/Operator Location: Chennai Job Description: Grinntech is a dynamic and innovative full stack lithium battery tech startup committed to power up the electrification of Indian and Global mobility. As part of our ambitious growth plans, we are seeking an experienced Maintenance Engineer for ensuring the smooth operation, upkeep, and repair of all machinery, equipment, and utilities in the Lithium-ion battery manufacturing plant. The role involves preventive maintenance, troubleshooting breakdowns, and improving equipment efficiency to enhance productivity and reduce downtime. Key Responsibilities Preventive & Predictive Maintenance: Develop, implement, and monitor preventive and predictive maintenance schedules for all manufacturing equipment, utilities, and infrastructure. Troubleshooting & Repairs: Diagnose and rectify mechanical, electrical, and automation-related issues to ensure minimal downtime and uninterrupted production. Equipment Calibration & Optimization: Ensure all production equipment is calibrated and optimized for maximum efficiency and longevity. Documentation & Compliance: Maintain detailed records of maintenance activities, spare parts inventory, and compliance with safety and regulatory standards. Spare Parts Management: Monitor and manage inventory of critical spare parts, ensuring availability while optimizing costs. Safety & Compliance: Ensure all maintenance activities adhere to workplace safety protocols and environmental regulations. Continuous Improvement: Identify and implement innovative solutions to enhance equipment performance and reduce maintenance costs. Vendor Coordination: Liaise with equipment manufacturers and service providers for maintenance contracts, spare parts procurement, and technical support. Required Skills & Qualifications: Bachelor's degree / Diploma in Mechanical, Electrical, or Industrial Engineering or a related field. 3-5 years of experience in maintenance roles, preferably in a battery manufacturing, electronics, or chemical processing industry. Valid 'B' or ‘C’ License for Electrical Work is Mandatory. Hands-on experience with maintenance of manufacturing equipment such as mixers, coating machines, drying ovens, formation & testing equipment, and BMS systems. Familiarity with safety standards such as ISO 45001, ISO 14001 guidelines. Ability to work under pressure and handle emergency maintenance situations. Strong analytical, problem-solving, and communication skills. Benefits: Competitive salary and benefits package Opportunity to work in a cutting-edge technology company. Growth and development opportunities within the organization. Collaborative and inclusive work environment.