Software Engineer II, User Targeting
Core
Design and implement full-stack features across Ruby on Rails backend and React frontend, optimizing segmentation performance and cost at scale.
Role type
mid-level full-stack software engineer
Builds
customer-focused web application features
Domain
e-commerce / user targeting
Deliverable
production ML models | product features
Required skills
full-stack development, software design, data structures, algorithms, SQL, database management, automated testing, code review, on-call rotation
Preferred skills
Ruby, Ruby on Rails, TypeScript, React, Sidekiq, MongoDB, ClickHouse, Snowflake, high-scale systems, customer experience focus
Technologies
Ruby on Rails, React, MongoDB, ClickHouse, Sidekiq, Snowflake
Responsibilities
Design and implement features from design review through production rollout; break down medium-sized projects and set delivery dates; write and tune queries against MongoDB and ClickHouse; collaborate with product managers, designers, and engineering teams; write automated tests and review code; participate in on-call rotation
Seniority
Mid-level, hands-on IC