Specialist, Formation & Ageing – Battery Cells

EnerSys

. Develop, optimize, and sustain formation, ageing, grading, and end-of-line manufacturing processes for cylindrical lithium-ion battery cells .

Posted 9/17/2026full-timeGreenville • South Carolina • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in lithium-ion battery manufacturing processes, including formation, ageing, and grading, while ensuring compliance with safety and quality standards. Proficient in process optimization, data analysis, and collaboration with cross-functional teams to drive continuous improvement initiatives.

Highest-signal resume keywords

Lithium-Ion Battery ManufacturingProcess EngineeringRoot Cause AnalysisContinuous ImprovementHigh-Volume Manufacturing

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Formation RecipesAgeing StrategiesProcess DocumentationData AnalysisLean ManufacturingDesign of ExperimentsStatistical Process ControlProcess Capability AnalysisVoltage MonitoringCycle Sequencing

Soft Skills

CollaborationProblem SolvingCommunication

Tools & Technologies

Manufacturing Execution SystemsAutomation SystemsQuality Control Tools

Industry Keywords

Battery TechnologyElectrical EngineeringChemical EngineeringMaterials ScienceSafety Standards

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Develop, optimize, and sustain formation, ageing, grading, and end-of-line manufacturing processes for cylindrical lithium-ion battery cells
Define, validate, and maintain formation recipes, including charge/discharge parameters, voltage limits, current limits, rest periods, cycle sequencing, and safety controls
Establish and optimize ageing strategies, including stabilization criteria, self-discharge screening, open-circuit voltage monitoring, leakage detection, and grading methodologies
Analyze process and test data, including voltage curves, current response, capacity results, DCIR measurements, temperature profiles, OCV drift, and process performance indicators
Implement process improvements to enhance product quality, manufacturing yield, throughput, cycle times, operational efficiency, and cost performance
Support equipment selection, supplier technical reviews, Factory Acceptance Testing, Site Acceptance Testing, installation, commissioning, qualification, and production startup
Develop process documentation, manufacturing standards, work instructions, control plans, alarm limits, process windows, and escalation procedures
Collaborate with automation, MES, data engineering, and quality teams on traceability, recipe management, process control, and data integrity
Investigate and resolve process deviations, equipment issues, quality concerns, safety events, and abnormal cell performance
Partner with cell development, electrode manufacturing, cell assembly, electrolyte filling, quality, and product engineering teams to understand upstream process impacts
Apply Root Cause Analysis, 8D, Design of Experiments, SPC, Ishikawa, Process Capability Analysis, and Lean Manufacturing principles
Ensure compliance with applicable safety, environmental, quality, electrical, fire protection, and battery manufacturing standards
Participate in continuous improvement initiatives supporting operational excellence and manufacturing readiness

Requirements

What you’ll need

Bachelor's degree in Electrical Engineering, Materials Science, Battery Technology, Chemical Engineering, Automation Engineering, Manufacturing Engineering, or a related technical discipline required
Experience in lithium-ion battery manufacturing, battery testing, formation, ageing, grading, process engineering, or a comparable advanced manufacturing environment preferred
Experience supporting equipment qualification, process validation, production ramp-up, and continuous improvement initiatives preferred
Experience with high-volume manufacturing processes and automated production systems preferred

Benefits

Comp & perks

Equal employment opportunities and protection from discrimination and harassment
Employment protections covering race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, and other characteristics protected by law