Senior Software Engineer, Python

### **About the Role** We’re looking for a **senior-level software engineer who leans backend** and can take product problems from first principles through implementation. You’ll spend roughly 70% of your time on backend and distributed systems work and 20–30% on frontend work, giving you the ability to own features across the stack when needed. **You’ll help take new products and capabilities from early traction to meaningful scale** — designing reliable backend systems while contributing the frontend components required to deliver complete product experiences. This work could include helping expand our **new incrementality offering into a scalable experimentation platform, building near real-time data infrastructure or building AI into our marketing user's workflows**. You'll have an opportunity to collaborate with a cross-functional team of data scientists, product managers, and designers along the way. ### **Your Impact** - Scale our **new incrementality product** into a reliable, repeatable experimentation platform. - Develop **near-real-time ingestion and processing capabilities** to move beyond batch workflows. - **Build new AI-powered workflows** that help marketers evaluate performance and act on insights. - Improve connection-state systems and help extend the partner ecosystem across data ingestion and exports. - Work on other product areas such as role-based access control (RBAC). - Contribute to frontend work when needed to deliver complete experiences. ### **What You Bring** - 5+ years of experience designing and building distributed backend systems, microservices, APIs and/or data processing systems written in Python. - Multiple years of professional experience building system architecture. - Experience working closely with product managers, designers, and data scientists while independently driving implementation and delivery. - Previous startup experience or working in an environment where engineers need breadth, sound judgment, and strong problem-solving skills. - Demonstrated experience turning ambiguous product needs into sound technical architecture and production-ready solutions. - The ability to navigate complex datasets and interconnected tables to investigate issues, trace dependencies, and identify the right path forward in ambiguous technical situations. - Working frontend experience with technologies such as React and TypeScript; **deep frontend specialization is not required.** - Strong coding fundamentals and the ability to solve technical problems independently, with AI used as an accelerator rather than a substitute for core capabilities. - A generalist mindset and willingness to work across backend, frontend, pipelines, and infrastructure when the product requires it. ### **You may be a strong fit if** - Most of your experience is in **data-intensive** backend engineering, but you have also shipped frontend work.