3 months ago
Base Salary
$148k - $222k/yr
Responsibilities
- Design and build backend systems that scale AI solutions for more than 167,000 customers.
- Develop reliable data collection and processing pipelines for machine learning model training and consumption.
- Build reliable services that serve AI models in production environments.
- Help evolve Klaviyo’s agentic architecture to make AI agents more self-sufficient and performant.
- Collaborate with product managers, machine learning engineers, data scientists, and customers to shape solutions and deliver product impact.
Requirements
- 5–7 years of professional software engineering experience focused on backend systems and distributed architectures.
- Hands-on experience building and deploying generative AI and agentic AI applications in production, including prompt engineering, few-shot learning, fine-tuning, and evaluation.
- Strong experience designing scalable distributed systems and AI agent capabilities.
- Proficiency in Python and modern backend frameworks, preferably FastAPI or Django.
- Experience creating human and automated evaluations for AI model quality.
- Proficiency with big data tools such as Apache Spark and Hadoop.
- Deep experience with asynchronous processing and distributed task queues including Celery, Kafka, SQS, RabbitMQ, and Redis.
- Strong understanding of database technologies and ORMs, including SQLAlchemy and Alembic.
- Experience with AWS, Kubernetes, cloud-native architectures, infrastructure, and CI/CD pipelines.
- Skill designing and building robust APIs.
- Ability to work autonomously, handle ambiguity, collaborate with product managers and customers, and stay current with the rapidly evolving AI field.
- Preferred: prior ML model training and production deployment experience.
- Preferred: experience with reinforcement learning.
Benefits
- Comprehensive health, welfare, and wellbeing benefits based on eligibility.
- Potential annual cash bonus, equity, and sign-on payments in addition to base salary.
- Role may require up to 10% travel for onboarding, client or partner work, team meetings, and industry events.
Tech Stack
Categories
About Klaviyo
Klaviyo builds a subscription SaaS platform that lets e-commerce and consumer brands use first-party data to run targeted email, SMS, and push campaigns, with built-in automation and analytics. The product also includes B2C CRM features for segmentation, A/B testing, and customer lifecycle workflows. Founded in 2012 and headquartered in Boston, it is a public company (NYSE: KVYO) used by brands such as Mattel and Glossier.