Applied AI - Graduate Intern

EnerSys Delaware Inc.

1d • $35 - $40 • Onsite

About The Position

EnerSys is a global leader in stored energy solutions for industrial applications, with over thirty manufacturing and assembly plants worldwide, servicing over 10,000 customers in more than 100 countries. Headquartered in Reading, PA, USA, with regional headquarters in Europe and Asia, EnerSys offers an extensive line of Motive Power and Energy Systems, complemented by integrated services and systems, backed by over 100 years of battery experience. This internship focuses on the design, development, and evaluation of large language model (LLM) systems and agentic AI applications within applied energy and engineering contexts. The intern will contribute to ongoing projects centered on intelligent workflow automation, including agentic systems for commissioning, field service, sales support, and engineering assistance. Depending on project requirements and the intern's background, involvement in related areas such as optimization, simulation, and deep learning-based forecasting is also anticipated.

Requirements

• Currently enrolled in a Master's or PhD program in Computer Science, Artificial Intelligence, Data Science, Electrical Engineering, or a closely related discipline — or recently graduated from such a program.
• Strong theoretical foundation in machine learning and deep learning, with the ability to reason about model behavior, generalization, and failure modes.
• Demonstrated hands-on experience building LLM-based applications — including at least one of the following: agentic systems, RAG pipelines, structured output generation, or tool-augmented language models.
• Proficiency in Python; fluency with ML frameworks, particularly PyTorch.
• Strong data handling and analysis skills — experience working with complex, real-world datasets using pandas, NumPy, or equivalent tools.
• Ability to design and execute rigorous experiments, interpret results critically, and communicate findings clearly in written and verbal form.

Nice To Haves

• Experience building LLM-based applications, including agentic workflows, tool-augmented models, or retrieval-augmented generation systems; familiarity with agent frameworks (such as LangChain, CrewAI, or similar) is a plus.
• Exposure to optimization or simulation methods (e.g., linear programming, MPC, or heuristics), particularly in energy, industrial, or cyber-physical system contexts.
• Experience with time-series data or sequential modeling tasks, including forecasting, anomaly detection, or sequence classification.
• Familiarity with cloud-based AI/ML platforms, particularly Microsoft Azure (e.g., Azure ML or Azure AI Foundry); experience deploying or evaluating LLMs in a cloud environment is a plus.
• Interest in or prior exposure to energy storage systems, battery management, industrial automation, or related domains is a plus.

Responsibilities

• Design and implement agentic AI architectures, including multi-agent workflows, tool-calling systems, memory and state management, and orchestration logic for complex multi-step tasks.
• Develop and evaluate retrieval-augmented generation (RAG) pipelines, with attention to retrieval strategy, document chunking and indexing, embedding model selection, re-ranking, and end-to-end evaluation.
• Contribute to LLM evaluation and validation frameworks — defining test coverage, constructing evaluation datasets, assessing output reliability, and identifying failure modes through structured testing and adversarial analysis.
• Conduct prompt engineering and instruction design for domain-specific tasks, and support experimentation with parameter-efficient fine-tuning approaches where applicable.
• Perform model benchmarking and comparative analysis, including evaluation of commercial and open-source LLMs for specific task types, latency and cost tradeoffs, and domain adaptation requirements.
• Support integration of LLM and agentic components with broader system architectures, including data pipelines, APIs, and domain-specific tooling.
• Contribute to data preparation and preprocessing workflows for structured and unstructured industrial datasets, including cleaning, transformation, and schema design.
• Engage in the full engineering rigor expected of production AI/ML systems — including unit and integration testing, model verification and validation, experiment evaluation, simulation workflows, data and output visualization, and technical documentation and reporting — as continuous activities throughout the project lifecycle.

Benefits

• Paid time off plus paid holidays
• Medical/dental/vision insurance plan
• Life insurance, short/long term disability, tuition reimbursement, flex spending, and employee stock purchase plan
• 401K plan

What This Job Offers

• Career Level: Intern
• Education Level: Ph.D. or professional degree
• Number of Employees: 5,001-10,000 employees