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Klaviyo’s Integrations Velocity team is building the future of how integrations are created and maintained—not just by our internal engineers, but by developers across the Klaviyo ecosystem. We currently support dozens of integrations supporting over 149,000 customers across 80+ countries. As Klaviyo expands beyond e-commerce into new industries, we want to make integrations faster to build, easier to maintain, and more accessible to developers everywhere. To support this, we built the Integrations Generation Framework (IGF)—a Python-based, declarative ETL engine that powers all new integrations through a unified codebase. IGF dramatically reduces complexity by centralizing monitoring, error handling, and sync logic, while enabling integrations to be defined declaratively. As a Software Engineer II on this team, you’ll work across the stack—but with a strong focus on frontend development. You’ll help design and build intuitive React-based tools and UIs that streamline the development experience for anyone working with IGF. From debugging and deployment to monitoring and configuration, your work will directly improve how fast and efficiently new integrations are delivered. You’ll also collaborate on our Python backend, contributing to the continued evolution of IGF and the infrastructure that powers it. Whether you're writing reusable components, improving observability, or building documentation workflows, your contributions will help accelerate Klaviyo’s ability to enter new markets and scale developer impact.
