Senior AI Engineer

Responsibilities

• Design and build backend systems that support scaling AI solutions for over 167K customers
• Develop robust, reliable, and scalable data collection and processing pipelines for machine learning models
• Develop scalable services to serve AI models in production environments
• Contribute to evolving agentic architecture to improve AI agent self-sufficiency and performance
• Collaborate with product managers and data scientists to drive customer-centric product thinking

Requirements

• 5-7 years of professional software engineering experience with a focus on backend systems and distributed architectures
• Hands-on experience building and deploying generative AI and agentic AI applications in production
• Expertise in prompt engineering, few-shot learning, fine-tuning, and evaluation
• Proficiency in Python and modern backend frameworks like FastAPI or Django
• Experience with big data tools such as Apache Spark and Hadoop
• Deep experience with asynchronous processing and distributed task queues (Celery, Kafka, SQS, RabbitMQ, or Redis)
• Strong understanding of database technologies and ORMs (SQLAlchemy, Alembic)
• Proficiency with cloud-native architectures (AWS) and container orchestration (Kubernetes)
• Skilled in designing and building robust APIs

Preferred Qualifications

• Experience training and deploying ML models in production systems
• Experience in reinforcement learning

About the Company

Klaviyo empowers creators to own their destiny by making first-party data accessible and actionable. They build the infrastructure and applications that serve as the interface between businesses and consumers, helping them nurture personalized experiences in ecommerce and beyond.