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Staff iOS Engineer

Polymarket· Engineering
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New York, Remote$250k - $500kFull-timePosted 3mo ago

About the role

Polymarket is seeking a Staff iOS Engineer to set the technical direction for the iOS product, lead architectural decisions, and raise engineering quality across the mobile org. The role focuses on performance, real-time data handling, and intuitive UI for fast-moving trading/wagering experiences, partnering with product, design, and leadership.

Responsibilities

  • Own the technical vision and long-term roadmap for Polymarket’s iOS platform, from architecture and performance to product quality and release discipline
  • Drive foundational architectural decisions that scale the codebase with the product and team, end to end
  • Lead the design of systems that handle live market data, fast-moving prices, and real-time order state reliably and at scale
  • Set iOS engineering standards and best practices, and level up the broader mobile team through code reviews, design reviews, and mentorship
  • Partner with backend, product, and design leadership to shape APIs, data contracts, and cross-platform technical strategy
  • Identify and tackle the hardest technical problems across mobile, including performance bottlenecks, reliability gaps, and infrastructure investments
  • Act as a technical leader and multiplier, influencing direction beyond your own code and helping shape how Polymarket builds mobile as a platform

Qualifications

  • Extensive iOS engineering experience with track record of leading architecture of high-quality iOS applications in production at scale
  • Deep experience building trading, financial, sportsbook, or adjacent real-time products
  • Expert knowledge of Swift and the iOS SDK, with strong performance, memory management, concurrency, and real-time data handling instincts
  • Proven experience designing apps that consume live data feeds and display fast-moving information reliably and smoothly
  • Experience setting technical direction across a team or multiple teams and driving alignment on complex architectural decisions
  • Track record of mentoring engineers and raising the technical bar of teams
  • High bar for product quality and user experience
  • Comfortable operating with broad ownership and ambiguity in a fast-moving environment
  • Strong cross-functional communication skills to influence product, design, and backend leadership
  • (Plus) Familiarity with WebSockets, streaming APIs, or other real-time data infrastructure
  • (Plus) Background in a high-growth startup environment

Skills

Required:iOS architecture leadershipSwiftReal-time data handling

Benefits

  • Competitive salary & equity
  • Unlimited PTO
  • Full Health, Vision, & Dental coverage
  • 401k match
  • Hardware setup: new MacBook Pro, big display, & accessories
Last updated Oct 25, 2026. Interested? Apply on the company site.

About Polymarket

Polymarket | The World's Largest Prediction Market™

Polymarket is the world's largest prediction market, allowing you to stay informed and profit from your knowledge by trading on future events across various topics.

BTC Up or DownBitcoinEconomyEsportsGeopoliticsMarketsPrediction MarketSoccer
Company profileWebsite

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