Senior Staff Machine Learning Engineer (AI Agent)

Cresta is a company focused on revolutionizing the contact center industry through AI technology. They are seeking a Senior Staff Machine Learning Engineer to lead the development and deployment of AI Agent solutions, leveraging large language models to create practical applications for customers.

Responsibilities:

• Design, develop, and deploy Cresta’s AI Agent solutions and proprietary models
• Focus on practical AI challenges such as improving reasoning, planning capabilities, and evaluation in real-world scenarios
• Collaborate with cross-functional teams including front-end and back-end software engineers to integrate AI Agents into Cresta’s customer solutions
• Lead initiatives to scale AI systems for production environments, ensuring performance and reliability across use cases
• Contribute to solving cutting-edge problems in AI and help define the future roadmap for Cresta’s AI Agents
• Innovate and research ways to improve security, cost-efficiency, and reliability of AI systems

Requirements:

• Bachelor's Degree in Computer Science, Mathematics, or a related field; Master's or Ph.D. preferred, or equivalent professional experience
• 7+ years of hands-on industry experience with AI and machine learning, preferably with 3+ years of experience working with LLMs in large-scale production environments
• Expert knowledge of machine learning concepts and methods, especially those related to NLP, Generative AI, and working with LLMs
• Proven leadership in designing and deploying AI solutions at scale, with a deep understanding of model optimization and real-time AI applications
• Extensive practical knowledge of modern machine learning frameworks and technologies (e.g., PyTorch, Tensorflow, Hugging Face, NumPy), as well as experience with distributed systems and cloud-based AI infrastructure
• Strong problem-solving and strategic thinking abilities, with a proven ability to lead cross-functional teams and work collaboratively to deliver innovative AI solutions in production
• A passion for driving AI adoption and pushing the boundaries of AI technology into real-world applications, with an ability to mentor junior engineers and influence strategic decisions across the organization