Data Lake Infrastructure & Data Analytics Research Engineer Intern - Multiple Teams

The Applied Machine Learning Ark team combines system engineering and machine learning to develop and operate Large Language Model (LLM) service platforms that offer businesses Model-as-a-Service (MaaS) solutions, serving both large model providers and downstream users. The US team drives the design, development, and operation of MaaS solutions across the US and international markets outside mainland China. We are building full-stack, end-to-end solutions spanning text and multimodal LLM algorithms, LLM training/fine-tuning/inference frameworks, prompt engineering, model alignment, and intelligent agent systems. Beyond model serving, we operate large-scale log analytics pipelines that process massive volumes of invocation logs from text models, multimodal models, and agent systems — extracting usage patterns, quality signals, and actionable insights to inform model improvement, system optimization, and product decisions through continuous, data-driven feedback loops. We are actively seeking talented engineers and researchers specializing in Large Language Models and AI Agent systems to join our dynamic team. We are looking for talented individuals to join us for an internship. Our internship program offers students hands-on experience, industry exposure, and opportunities to apply their knowledge to real-world challenges while building a strong foundation for personal and professional growth. Interns will gain practical experience, explore potential career paths, and participate in social events, learning programs, and development workshops alongside industry professionals. Candidates may apply to a maximum of two positions across Our Company and its affiliates globally. Applications will be considered in the order they are submitted. Applications are reviewed on a rolling basis, so we encourage you to apply early. Please clearly state your availability in your resume, including your start and end dates. Responsibilities - Build and maintain the data lake that powers model and agent development, including storage design, query performance, and cost efficiency. - Develop large-scale batch and streaming pipelines that turn raw model and agent logs into analysis-ready datasets. - Build analytics and metrics platforms that let algorithm and product teams find actionable insights quickly. - Own data quality and governance, and partner with algorithm teams to support the data flywheel behind continuously improving systems. Minimum Qualifications: - Currently pursuing a Bachelor's in Computer Science, Software Engineering, Data Science, or a related field. - Solid fundamentals in data structures, algorithms, and distributed systems. - Strong programming skills in at least one mainstream language, plus proficiency in SQL. - Hands-on experience with a big data engine or lakehouse storage system. - Demonstrated ability through substantial projects, internships, research, or open-source work. Preferred Qualifications: - Understanding of query engine and lakehouse internals, including columnar storage and query optimization. - Experience with streaming pipelines or OLAP systems. - Experience analyzing LLM or agent logs and traces. - Experience with cloud-native infrastructure and performance tuning at scale.