Senior Machine Learning Engineer

About the role

As a Senior Machine Learning Engineer (MLE) on the AI & ML (Data Collection) team, you will play a critical role in delivering AI-powered systems that extracts meaningful data from PitchBook's wealth of structured and unstructured data, including reports, news, and other textual content. This role requires deep technical expertise in advanced data analytics and machine learning, as well as a hands-on approach to designing, building, and optimizing ML solutions that empower the PitchBook Platform. You will be deeply involved in the end-to-end development and operationalization of ML models, including their architecture, training, deployment, and ongoing maintenance. Your focus will span across natural language processing (NLP), generative AI (GenAI), large language models (LLMs), and scalable data systems. You will be expected to tackle complex technical challenges, contribute to architectural decisions, and collaborate closely with cross-functional stakeholders, including product managers, engineers, and domain experts, to translate requirements into scalable AI/ML solutions. Strong communication, collaboration, and a focus on delivering reliable systems will be key to your success in this role. Your contributions will help unlock value for PitchBook customers by improving the accuracy, scalability, and efficiency of data extraction, enabling faster and more reliable access to structured information across the platform. This includes developing models that can infer meaning and structure from millions of discrete data sources, and applying ML to enrich our datasets with predictive and generative intelligence. As a senior engineer, you will take ownership of key technical components and ensure that our systems meet the highest standards of performance, reliability, and security. You will be expected to contribute to the team's technical excellence by providing guidance through code and design reviews, sharing best practices, and supporting peers when needed. While this role does not involve direct people management, you will lead by example through strong ownership and high-quality execution. You will actively contribute to solving complex technical problems and ensure your work aligns with broader product and business objectives. In addition to driving product impact, you will have opportunities to deepen your expertise and contribute to the broader AI/ML community through experimentation, technical contributions, or knowledge sharing. A strong interest in advancing capabilities in areas such as generative AI, Agentic AI, LLMs, and applied NLP will help you continuously improve systems and deliver meaningful impact. You will be part of a multidisciplinary team of ML engineers and data scientists responsible for building AI & ML solutions and services as part of robust data collection pipelines handling large volumes of unstructured data. Team will focus on building scalable and reliable systems to process and categorize data that is essential for downstream data collection processing. Primary Job Responsibilities AI & ML Extraction Contribution: Build and deliver high-impact AI/ML solutions focused on extracting structured data from unstructured sources. Ensure outputs improve data quality, coverage, and reliability across data collection pipelines. Technical Execution: Design, develop, and deploy ML/NLP/LLM-based extraction systems. Contribute to building scalable, efficient, and production-grade services with strong focus on accuracy, latency, cost, and robustness. Extraction System Development: Develop and optimize extraction workflows using techniques such as document parsing, chunking, embeddings, RAG, and LLM-based extraction methods. Evaluation & Quality Improvement: Define and implement evaluation frameworks (precision, recall, F1, field-level accuracy) and continuously improve extraction performance through iterative experimentation. Data Pipeline Contribution: Work on high-throughput data collection pipelines, ensuring seamless integration of extraction components with upstream and downstream systems. MLOps & Reliability: Contribute to model deployment, monitoring, logging, and CI/CD pipelines. Ensure models are observable and reliable in production environments. Collaboration & Stakeholder Alignment: Partner with Product, Data Collection Engineering, and Platform teams to translate requirements into scalable extraction solutions aligned with business goals. Code Quality & Knowledge Sharing: Maintain high standards of code quality, participate in design and code reviews, and share knowledge to improve overall team capability. Innovation & Continuous Improvement: Explore and apply advancements in NLP, LLMs, and extraction techniques to improve system performance, scalability, and cost efficiency. Process & Delivery Efficiency: Contribute to efficient development cycles by following Agile practices and continuously improving workflows and automation. Hiring & Onboarding Support: Support hiring

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