Software Engineer II, User Targeting
Braze · Austin
About this role
At Braze, we’re looking for a **Software Engineer II** to join the **User Targeting** team. ## What you’ll do You’ll build and own features in a complex, high-scale segmentation system that underpins Braze’s product offering. The team is responsible for how customers segment and target their users—every message flows through pipelines that process **billions of users per day**. **Responsibilities include:** - **Design & Build:** Design and implement features across the **Ruby on Rails** backend and **React** frontend, from design review through production rollout - **Own Features:** Take ownership of medium-sized projects—break down work, set delivery dates, and hit them - **Work with Data at Scale:** Write and tune queries against **MongoDB** and **ClickHouse**, and learn how segmentation performance and cost change with data volume - **Collaborate Cross-Functionally:** Work closely with product managers, designers, and other engineering teams to clarify requirements and deliver customer-focused features - **Maintain & Evolve:** Write thorough automated tests, review teammates’ code, and participate in the on-call rotation to keep systems stable and high-quality The team also extensively integrates **AI** into daily workflows, using agentic tools to navigate the Ruby monolith, create proof of concepts, and move quickly and safely from an ask to a working solution. ## Who you are - **2+ years** of professional experience building and shipping web applications (full-stack or back-end services) - Strong fundamentals (details continue in the original posting)
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