Underdog · 1 week ago
Senior Software Engineer - iOS (Interaction and Animation)
United States
Full-time
Remote
Senior Level
$160K/yr - $240K/yrUnderdog is a fast-growing sports company focused on creating engaging products for sports fans. The role involves enhancing the app's interaction quality and motion through designing animations and collaborating with product teams to deliver polished user experiences.
eSportsFantasy SportsGaming
Responsibilities
You will join the Mobile Platform team and work within a group focused on foundational mobile capabilities
Collaborate with other iOS and Android engineers, as well as product and design partners, to raise the quality of motion and interaction across the app
Design and build animations, transitions, and interactive UI components in SwiftUI, Lottie, and Rive
Work closely with designers to explore ideas quickly and turn the best ones into production-ready patterns
Help teams evaluate motion concepts, understand trade-offs, and use animation to improve clarity and engagement
Bring other engineers along as a key part of the role
Document patterns, create examples, pair with engineers when needed, and help the organization understand when and how to use motion responsibly
Build systems that enable product teams to ship polished interactions without relying on bespoke implementations
Qualification
Required
You are an experienced iOS engineer who cares deeply about how interfaces feel, not just how they function
You have a portfolio or examples of past motion or interaction work, and can explain the intent, decisions, and tradeoffs behind them
You understand animation tools such as SwiftUI animations, Lottie, and Rive, and know when to use each
You know how to build animations that perform well under real product conditions and how to debug issues that affect responsiveness
You work well with designers and can translate motion concepts into clear engineering plans
You communicate clearly with engineers, designers, and product partners and can guide conversations about what motion adds and what it costs
You are comfortable iterating quickly during exploration and being disciplined when shipping to production
You notice gaps in polish and take initiative to improve them without needing direction
Preferred
Experience bringing brand expression into motion or helping shape a motion language for a product
Experience working with design systems teams or contributing to reusable interaction patterns
Experience with cross‑platform animation tools and collaboration patterns, especially when aligning animations across iOS and Android
Familiarity with haptics, gesture‑driven interactions, and micro‑interaction design
Interest in building lightweight tools or workflows that make it easier for teams to prototype and ship polished interactions
Benefits
Unlimited PTO (we're extremely flexible with the exception of the first few weeks before & into the NFL season)
16 weeks of fully paid parental leave
Home office stipend
A connected virtual first culture with a highly engaged distributed workforce
5% 401k match
FSA
Company paid health, dental, vision plan options for employees and dependents
Company
Underdog
We’re the fastest-growing sports gaming company ever. Our mission is to build innovative games and products for American sports fans.
Founded in 2020
201-500 employees
H1B Sponsorship
Underdog has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
$115MKey Investors
Spark CapitalBlackRockKevin Carter
2025-03-26Series C· $70M
2022-07-26Series B· $35M
2021-05-03Series A· $10M
Leadership Team
Jeremy Levine
Founder & CEO
Rishi Garg
Chief Financial Officer
Recent News
Mergers & Acquisitions
2025-10-19
2025-10-18
Company data provided by crunchbase