CoreAI Principal Engineer, Data Platform

CoreAI Principal Engineer, Data Platform Keystone.AI is a premier strategy, technology and economics consulting firm providing AI-driven services to large companies, law firms, and government agencies. The firm builds, operates, and transfers enterprise AI solutions that automate and optimize operational and commercial decision-making. Keystone also supports clients in high-stakes legal cases and regulatory matters by delivering economic analysis and expert witness testimony. We are all connected by one mission: bringing transformative ideas to life on behalf of our clients. Keystone.AI employs the worlds best AI/ML science and technology practitioners with unparalleled experience implementing highly complex, massive-scale algorithms and models to help companies make better decisions across manufacturing, supply chain management, sales, and marketing. We are seeking an experienced and visionary Principal Engineer Data Platform to lead the architecture, development, and evolution of our next-generation data infrastructure. You will play a pivotal role in designing scalable and high-performance data solutions that empower analytics, AI/ML, and product development across the company. This is a high-impact role that combines technical leadership, strategic thinking, and cross-functional collaboration. You will leverage a deep understanding of machine learning, software engineering, and problem solving to build scalable, robust solutions for clients. We are based in Bellevue, WA with flexible and hybrid work environment. Role and Responsibilities: Architect and Evolve the Data Platform: Design and implement robust, scalable, and secure data infrastructure that supports real-time and batch processing at scale. Drive Technical Strategy: Lead the technical vision and roadmap for the data platform in alignment with product and business objectives. Conducting thorough data analysis and pre-processing to ensure high-quality input for the models Hands on development: Write high-quality, maintainable code and lead by example in system design, code reviews, and debugging. Collaboration and Leadership: Work closely with data engineers, software developers, product managers, and scientists to deliver data solutions. Mentor and guide engineering teams. Integrating machine learning solutions into existing systems and processes and scaling them for real-world applications Operational Excellence: Ensure reliability, performance, and cost-efficiency of the data infrastructure. Define SLAs and lead incident response when needed. Tooling and Innovation: Evaluate and integrate modern data technologies and frameworks (e.g., Apache Spark, Airflow, dbt, Kafka, Snowflake, etc.) to continuously improve platform capabilities. Requirements: 10+ years in software engineering with at least 5 years focused on building and operating data platforms at scale. Bachelors degree in computer science, Engineering, or a related field Deep knowledge of distributed systems, data pipelines, data lake/warehouse architectures, and data modeling. Is proficient in programming languages such in Python, Scala, or Java. Strong SQL skills. Experience with cloud platforms (e.g., AWS, GCP, Azure) and data orchestration tools. Is familiar with cloud computing platforms and distributed computing frameworks Proven ability to lead complex technical initiatives and influence stakeholders at all levels. Is an excellent communicator and has strong teamwork skills to collaborate effectively with diverse stakeholders Nice to have: Experience with ML platform development or streaming data architecture Contributions to open-source data tools or participation in industry forums Experience in highly regulated or enterprise-scale environments US Salary Range: $101,000 - $270,000, plus an annual discretionary bonus, 401k contribution, and competitive benefits package. Actual compensation within the range will depend upon the level the individual is hired into based on their skills, experience, qualifications. At Keystone we believe diversity matters. At every level of our firm, we seek to advance and promote diversity, foster an inclusive culture, and ensure our colleagues have a deep sense of respect and belonging. If you are interested in growing your career with colleagues from varied backgrounds and cultures, consider Keystone Strategy. Dont see an opening that fits your background? New York City 64 Wooster Street 3rd Floor New York, NY 10012 (212) 381-0712 Seattle 3120 139th Ave SE Suite 500 Bellevue, WA 98005 London 26 Throgmorton Street 1st Floor London, EC2N 2AN #J-18808-Ljbffr