Staff iOS Engineer

1 month agoLead New York, USA Hybrid Full Time Engineering Jobs by Polymarket

Polymarket

Polymarket is a decentralized information markets platform that lets users bet on the outcome of real-world events.

Series BRecently funded0 current maintainers0 active leadsTeam intelligence

Maintainer signals as of 9/2/2026

1280 Lexington Avenue, New York, USA, United States

Funding history

Unknown ($600M)Unknown ($600M)Strategic ($2B)

Investors

Abstract Ventures Tarun Chitra Polychain Capital josh-hannah ParaFi Capital

Projects

PolymarketPrediction Markets

Polymarket ClearingService Provider

DomeInfrastructure

About Polymarket

Polymarket is an information markets platform where users can trade on the outcomes of various events, leveraging the power of free markets to forecast the future. It provides a mechanism for users to bet on real-world events and earn money based on the outcomes.

View jobs by Polymarket

Skills

Api Architecture Code Review Ios Memory Management Mentoring Performance Real-Time Data Sdk Streaming Api Swift Trading Websocket

Candidate Availability

Hybrid · New York · Required

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

Own the iOS experience end to end, including technical architecture, performance, product quality, release discipline, real-time market data, engineering standards, APIs, data contracts, and mobile platform strategy.

Requirements

Significant iOS engineering experience with a record of shipping and owning high-quality production iOS applications.
Deep experience building trading, financial, or sportsbook applications.
Strong knowledge of Swift and the iOS SDK.
Knowledge of performance, memory management, and real-time data handling.
Experience consuming live data feeds and reliably displaying fast-moving information.
Cross-functional communication skills with product, design, and backend engineers.
Familiarity with WebSockets, streaming APIs, or real-time data infrastructure.
Experience leading or mentoring iOS engineers.
Experience in a high-growth startup environment.

Responsibilities

Own the iOS product experience from architecture and performance to quality and release discipline.
Set and own the technical direction and architectural decisions for the iOS platform.
Design and implement reliable real-time experiences for live market data, prices, and order states.
Lead code reviews and establish strong iOS engineering standards.
Collaborate with product, design, and backend teams to define priorities, APIs, and data contracts.
Shape mobile platform strategy and scalable architecture decisions.

Benefits

Competitive salary and equity
Unlimited PTO
Full health, vision, and dental coverage
401k match
Hardware setup including a MacBook Pro, display, and accessories