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Lead AI Software Engineer

KlaviyoBoston, MA
On-site Full-time

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Qualifications

Proven experience in backend engineering and machine learning system design. Strong proficiency in programming languages such as Python, Java, or similar. Deep understanding of machine learning frameworks and tools (e.g., TensorFlow, PyTorch). Experience with big data technologies (e.g., Spark, Hadoop) is a plus. Excellent problem-solving skills and the ability to work collaboratively in a fast-paced environment. Strong communication skills and a passion for mentoring and developing others.

About the job

At Klaviyo, we cherish the distinct backgrounds and perspectives that each Klaviyo (as we affectionately refer to ourselves) contributes to our vibrant workplace. We firmly believe in equitable opportunities for success and value the diverse experiences that go beyond conventional job criteria. If you find that you align closely with the role but may not meet every single requirement, we encourage you to apply. Curious about what life is like at Klaviyo? Explore klaviyo.com/careers to see how we empower creators to own their destinies.

Senior AI Software Engineer

At Klaviyo, we envision a future where software transcends mere productivity tools for human users, evolving into self-learning, self-optimizing systems grounded in measurable outcomes. Our infrastructure and applications currently support a thriving community of over 182,000 customers, encompassing billions of consumer profiles and facilitating hundreds of billions of customer interactions.

We are now pioneering the development of next-generation AI and machine learning technologies designed to empower these products, creating AI agents capable of autonomously designing, executing, and refining marketing and customer experience strategies tailored for businesses of all sizes.

As a Senior AI Software Engineer, you will play a pivotal role in architecting, developing, and scaling the backend and machine learning frameworks that underpin Klaviyo’s AI initiatives. You will collaborate closely with product managers, data scientists, and engineering teams to deliver intelligent, outcome-oriented systems that operate at an unprecedented scale, while also mentoring team members and guiding the technical vision of the group.

Your Impact

  • Lead the architecture and development of backend and ML systems serving over 182K customers.
  • Create robust, reliable, and efficient data processing and model-serving pipelines that fuel production ML models.
  • Design and enhance predictive systems (e.g., conversion likelihood, engagement ranking, personalization strategies) that drive customer engagement.

About Klaviyo

Klaviyo is a leading marketing automation platform that empowers businesses to personalize their marketing efforts and foster deeper connections with their customers. Our innovative solutions help over 182,000 brands harness the power of data-driven insights for effective engagement and growth. Join us as we redefine the future of marketing through cutting-edge AI and machine learning technologies.

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