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We awaken the world with energy. LG Energy Solution is the global leader in lithium-ion battery technology for electric vehicles and energy storage solutions.  Located in Queen Creek, Arizona, LG Energy Solution Arizona, Inc. is LG Group's first cylindrical battery manufacturer in North America, leading the widespread distribution of electric vehicles with the most advanced battery technology in the world. Join us as we inspire our talent with growth, challenge, action and collaboration to Empower Every Possibility! Job Summary:  At LG Energy Solution Arizona, Inc., At LG Energy Solution Arizona, Inc., the Sr. Engineer, Environmental & Sustainability leads initiatives to identify, evaluate, and control workplace and environmental risks. This role ensures compliance with local, state, and federal regulations, while driving company EHS standards, programs, and continuous improvement initiatives. Acting as a senior technical resource, the Senior Engineer leads audits, inspections, incident investigations, regulatory compliance activities, future permitting needs, environmental reporting, and emissions data evaluation to improve environmental performance and maintain compliance.  Responsibilities: Own and lead site-level environmental permitting strategy, including new permit applications, renewals, modifications, regulatory submissions, and long-term permitting needs for air, wastewater, stormwater, hazardous waste, and other applicable environmental programs. Serve as the senior environmental subject matter expert for assigned regulatory programs, providing technical interpretation, compliance direction, and risk-based recommendations to site leadership and cross-functional stakeholders. Lead the development, implementation, and continuous improvement of environmental management systems and program standards to strengthen compliance, operational consistency, and sustainability performance. Drive the ISO 14001 certification and maintenance process by leading gap assessments, corrective action planning, internal readiness reviews, and cross-functional implementation of environmental management system requirements. Review and validate complex environmental data, emissions calculations, discharge information, waste profiles, and compliance records to identify trends, regulatory risks, and improvement opportunities. Lead regulatory reporting and agency-facing submissions, ensuring accuracy, completeness, timeliness, and alignment with applicable federal, state, local, and company requirements. Act as a primary technical liaison with regulatory agencies, external consultants, and internal leadership during inspections, inquiries, permit negotiations, audits, and compliance reviews. Provide senior-level environmental review for capital projects, process changes, new equipment installations, chemical introductions, and management of change activities to ensure environmental risks and permitting impacts are evaluated before implementation. Lead environmental audits, inspections, and compliance assessments; assign corrective actions, verify closure, and escalate significant risks or recurring issues to appropriate leadership. Mentor and provide technical guidance to junior engineers, specialists, and cross-functional team members on environmental compliance practices, data evaluation, regulatory expectations, and internal program requirements. Develop and implement environmental initiatives that reduce compliance risk, improve operational controls, support sustainability goals, and align with company EHS strategy. Partner with Operations, Engineering, Facilities, Maintenance, Quality, Safety, and other departments to embed environmental controls into daily operations and long-term business planning. Prepare executive-level updates, compliance summaries, risk assessments, and improvement recommendations for management review. Promote workplace orga