Underdog Fantasy

Senior Software Engineer – iOS, Interaction, Animation

Underdog Fantasy

full-time

Posted on:

Location Type: Remote

Location: Remote • 🇺🇸 United States

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Salary

💰 $160,000 - $240,000 per year

Job Level

Senior

Tech Stack

AndroidiOS

About the role

  • 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.

Requirements

  • 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.
  • Even better if you have experience bringing brand expression into motion or helping shape a motion language for a product.
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

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
iOS developmentSwiftUILottieRiveanimation designUI component developmentperformance optimizationdebugginginteraction designmotion concepts
Soft skills
collaborationcommunicationinitiativecreativityproblem-solvingadaptabilityattention to detailmentorshipiterationuser experience focus