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Senior Full Stack Engineer, AI Enablement Team

Klaviyo

$152,000 - $228,000
Dec 10, 2025
Boston, MA, US
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Klaviyo is looking to accelerate its engineering organization's velocity and innovation by leveraging Artificial Intelligence throughout the Software Development Lifecycle (SDLC)

Requirements

  • 5+ years of full stack development experience.
  • Hands-on experience with one or more front end technologies (React, TypeScript, Angular, Vue, etc.)
  • Strong experience with specific AI/ML frameworks or platforms (e.g., PyTorch, TensorFlow, LangChain, Claude, Gemini, Copilot).
  • Prior experience in a high-growth environment, navigating technical complexity and change.
  • Experience with Python / Django or similarly typed languages.
  • Experience with AWS services, how to stand up infrastructure, and monitor for defects.
  • Hands-on experience with building REST APIs, GraphQL, and other middleware development tools.

Responsibilities

  • Technical Leadership: Act as a subject matter expert for AI-driven engineering tools, mentoring other engineers and championing a culture of AI-first development.
  • Build Paved Paths: Design, implement, and maintain robust, scalable full-stack platforms and tools that allow other engineers to easily integrate and utilize AI services and capabilities within their projects.
  • Drive Automation: Identify high-leverage opportunities to apply AI for automating engineering processes, such as code generation, testing, deployment, and operational tasks, to dramatically improve engineering efficiency and velocity at scale.
  • Establish Best Practices: Define the standards, patterns, and architectural guidance for responsible and effective AI enablement, ensuring reliability, security, and performance.
  • Cross-Functional Collaboration: Partner closely with Product, Machine Learning, and other Engineering teams to understand needs, gather requirements, and deliver production-ready solutions.
  • Build and maintain complex software: You’ll join us in writing clean, maintainable software that solves hard problems. You’ll write testable, quality code.
  • Design and manage scalable databases: Experience with designing and managing scalable databases.

Other

  • Bachelor's degree or higher in Computer Science or related field (not explicitly mentioned but implied)
  • Ability to work in a high-growth environment, navigating technical complexity and change.
  • Strong communication and collaboration skills: You’ll partner closely with Product, Machine Learning, and other Engineering teams.
  • Ability to learn fast and adapt to new technologies and workflows.
  • Commitment to responsible AI use, including privacy, security, bias awareness, and human-in-the-loop.