Software Engineer II, User Targeting

Braze•Chicago, IL

7d•$104,400 - $176,040

About The Position

Braze is hiring a Software Engineer II to join its User Targeting team, which builds the systems customers use to segment and target users. The team’s pipelines process billions of users per day and support a core part of the Braze product. In this role, you will build and own features in a complex, high-scale segmentation system, contribute to new segmentation capabilities, and help improve system performance and cost. You will develop across a Ruby on Rails backend and React frontend, work with large-scale data, and collaborate with product managers, designers, and engineering teams. The team also uses AI-assisted and agentic tools throughout product delivery to navigate its Ruby monolith, develop proofs of concept, and move from requests to working solutions efficiently and safely.

Requirements

At least 2 years of professional experience building and shipping web applications in full-stack development or back-end services.
Solid understanding of software design, data structures, and algorithms.
Experience with SQL and at least one production database.
Ability to clarify ambiguous feature requests and turn them into working, tested code with limited oversight.
Strong communication and organizational skills, with a history of thriving in team environments.

Nice To Haves

Familiarity with Ruby, Ruby on Rails, TypeScript, React, Sidekiq, and SQL or NoSQL databases.
Experience with MongoDB, ClickHouse, Snowflake, or other data lake solutions.
Experience working on a high-scale, high-throughput system.
Passion for customer experience.

Responsibilities

Design and implement features across the Ruby on Rails backend and React frontend, from design review through production rollout.
Own medium-sized projects by breaking down the work, setting delivery dates, and meeting them.
Write and tune queries against MongoDB and ClickHouse, and assess how segmentation performance and cost change with data volume.
Work with product managers, designers, and other engineering teams to clarify requirements and deliver features that meet customer needs.
Write thorough automated tests, review teammates’ code, and participate in the on-call rotation to maintain stable, high-quality systems.

Benefits

Competitive compensation that may include equity.
Retirement and Employee Stock Purchase Plans.
Flexible paid time off.
Comprehensive benefit plans covering medical, dental, vision, life, and disability.
Family services, including fertility benefits and equal paid parental leave.
Professional development supported by formal career pathing, learning platforms, and a yearly learning stipend.
A curated in-office employee experience designed to foster community, team connections, and innovation.
Opportunities to give back to the community, including an annual company-wide Volunteer Week and donation matching.
Employee Resource Groups.
Collaborative, transparent, and fun culture recognized as a Great Place to Work.