Senior Lead AI Engineer MLX

Salary: $276000 - 315000 per year Requirements: We require a bachelors degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or a related discipline, along with at least 6 years of experience building AI and ML algorithms or technologies; alternatively, we accept a masters degree in one of those fields plus at least 4 years of relevant experience. We require at least 6 years of programming experience with Python, Go, Scala, or Java. We prefer 7 years of experience delivering scalable and responsible AI solutions on cloud platforms such as AWS, Google Cloud, Azure, or comparable private cloud environments. We value experience designing, building, integrating, delivering, and supporting complex AI systems. We look for proven leadership and mentoring experience, including the ability to influence cross-functional stakeholders. We prefer hands-on experience with AI and ML technologies such as LLM inference, similarity search and vector databases, guardrails, and memory, using Python, C++, C#, Java, or Golang. We value experience applying advanced techniques to optimize training and inference software for better hardware utilization, latency, throughput, and cost. We look for strong curiosity about the latest AI research and the judgment to apply new methods responsibly in production. We seek excellent communication and presentation skills, with the ability to explain complex AI concepts clearly to peers. Responsibilities: We partner with engineers, research scientists, technical program managers, and product managers to deliver AI-powered products that improve how our associates work and how our customers interact with us. We design, develop, test, deploy, and support AI software components, including foundation model training, large language model inference, similarity search, guardrails, model evaluation, experimentation, governance, and observability. We leverage a broad mix of open-source and SaaS AI technologies, including AWS Ultraclusters, Hugging Face, vector databases, Nemo Guardrails, PyTorch, and related tools. We invent and introduce state-of-the-art LLM optimization techniques to improve scalability, cost, latency, throughput, and overall production performance. We contribute to the technical vision and long-term roadmap for foundational AI systems across the company. We help shape and advance responsible, scalable AI solutions that deliver value to millions of customers. Technologies: AI AWS Azure C# Cloud Golang Hardware Support Java LLM PyTorch Python Scala Machine Learning More: We are Lumen Dynamics, building responsible and reliable AI systems to help change banking for good. Our Intelligent Foundations and Experiences (IFX) team sits at the center of our AI strategy, working across the company to advance science and AI engineering while building proprietary solutions that serve millions of customers. We offer a comprehensive, competitive, and inclusive benefits package that supports total well-being, and this role includes eligibility for performance-based incentive compensation. The position is available in locations including New York, NY and San Jose, CA, with salary ranges of $250,800 to $286,200 for Sr. Lead AI Engineer, depending on location. We also support qualified candidates requiring employment authorization sponsorship and are committed to an inclusive, non-discriminatory workplace. last updated 28 week of 2026