Senior iOS Engineer

About Fizz

Fizz is the go-to social platform for Gen Z to connect with their community. College Fizz communities feature a private, moderated feed of anonymous posts from verified students, making it the most entertaining and authentic way to experience student life. On Global Fizz, all of Gen Z can connect across their shared experiences and identities.

Users can ask questions, share memes, post polls, and direct message others—all while keeping control of their identity. Safety, inclusion, and authenticity are core to everything we build.

Founded by two Stanford dropouts, Fizz launched at Stanford in 2021 and quickly reached over 95% student adoption. Since then, we've expanded to 400+ colleges, started generating ad revenue, and raised >$40M from investors such as Lightspeed, NEA, and Owl. Our mission: build a social network for the 99% of life that doesn’t make it onto entertainment platforms like Instagram and Tik Tok.

In 2025, we’re focused on:

• Expanding to every U.S. college
• Accelerating revenue through new product iterations
• Expanding Fizz to new markets beyond college, leveraging the new version of the Fizz product - Global Fizz

• Lead the development of new UI features and functionality for Fizz’s iOS app (Swift
  
  UI / UIKit), from conception to deployment
• Build quickly and iterate often—take ideas from zero to one and ship them to hundreds of thousands of daily active users
• Collaborate closely with backend engineers and dive into backend systems as needed to ensure seamless end-to-end product functionality
• Design, build, and maintain core app infrastructure and shared components to support scalable and maintainable product development
• Set up tools and processes that promote fast, high-quality software development and strong engineering culture

• Strong experience with Swift, Swift
  
  UI, and UIKit
• Demonstrated ability to build and ship production-quality iOS apps from 0 to 1, ideally in a startup or fast-paced environment
• Experience working with RESTful APIs, and comfort collaborating with backend engineers—or contributing directly to backend code when needed
• Understanding of core iOS platform concepts, such as app lifecycle, data persistence, concurrency, and performance optimization
• Awareness of common security and privacy best practices from a developer perspective
• Strong product intuition and a pulse on Gen Z user behavior—able to build features that are both delightful and impactful

Compensation range for this role is between $120,000 - $200,000 a year based on job related skills and experience. Fizz full-time employees are eligible to receive company sponsored benefits and equity.