Senior iOS Engineer
Polymarket
Senior iOS Engineer at Polymarket is a full time role based in New York, NY, United States. The listing states pay of $250k–$500k. It was published on 16 June 2026 and was open at last check.
| Role | Senior iOS Engineer |
|---|---|
| Company | Polymarket |
| Location | New York, NY, United States |
| Employment type | Full Time |
| Pay (as listed) | $250k–$500k |
| Published | 16 June 2026 |
| Status | Open at last check |
About Polymarket
Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current affairs. Built as a peer-to-peer marketplace with no centralized "house," Polymarket aggregates diverse opinions into transparent, market-based probabilities that reflect collective expectations about the future.
We're growing fast — both in terms of volume ($21B traded in 2025) and adoption as an alternative news source. Our ambition is to become a ubiquitous beacon of truth in global media and we need your help adding fuel to the fire.
About the Role
Polymarket is looking for a Senior iOS Engineer to help build our iOS product as we invest seriously in mobile. This is a high-ownership role for someone who understands what it takes to build a great trading or wagering experience on mobile — the performance requirements, the real-time data challenges, the UI patterns that make fast-moving information feel intuitive rather than overwhelming.
You'll work closely with product, design, and engineering leadership to deliver a high-quality iOS experience and help raise the bar across the mobile codebase. The right person has been in this world before: they know what a great trading or sportsbook app feels like from the inside, and they want to build something better.
What You'll Do
- Take end-to-end ownership of Polymarket's iOS experience, from technical architecture and performance to product quality and release discipline
- Make and own architectural decisions for the iOS platform, ensuring the codebase is built to scale and maintained with rigor as the product grows
- Design and implement experiences that handle live market data, fast-moving prices, and real-time order state in a way that feels fast and reliable to users
- Lead code reviews, establish strong iOS engineering standards, and help grow the capability of the broader mobile team
- Work closely with product, design, and backend teams to align on priorities, define APIs and data contracts, and ship high-quality experiences end-to-end
- Help shape how Polymarket thinks about mobile as a platform, including architecture decisions that set up the team for scale
What We're Looking For
- Significant iOS engineering experience, with a track record of shipping and owning high-quality iOS applications in production
- Deep experience building trading, financial, or sportsbook applications — you understand the product domain and the technical demands that come with it
- Strong knowledge of Swift and the iOS SDK, with solid instincts around performance, memory management, and real-time data handling
- Experience building apps that consume live data feeds and display fast-moving information reliably and smoothly
- A high bar for product quality — you care about how things feel, not just whether they work
- Comfortable operating with broad ownership in a fast-moving environment
- Strong cross-functional communication skills — you work well with product, design, and backend engineers
- (Plus) Familiarity with WebSockets, streaming APIs, or other real-time data infrastructure
- (Plus) Experience leading or mentoring iOS engineers
- (Plus) Background in a high-growth startup environment
Benefits
- Competitive salary & equity
- Unlimited PTO
- Full Health, Vision, & Dental coverage
- 401k match
- Hardware setup: new MacBook Pro, big display, & accessories
Pay Transparency
Base salary range: $250,000 to $500,000 annually, plus equity and benefits.
This range reflects a good-faith estimate for this position. Experience levels vary widely within a title here, so please reach out even if your expectations fall outside it. We're always happy to chat.
Create your free OnJob profile to apply — we'll take you to Polymarket's application after sign-up. · Posted 16 Jun 2026.
Senior iOS Engineer at Polymarket — questions answered
What does the Senior iOS Engineer role at Polymarket pay?
The Senior iOS Engineer at Polymarket listing states pay of $250k–$500k for the New York, NY, United States position. That figure is taken directly from the employer's own posting as published, not estimated or averaged from other roles.
Where is the Senior iOS Engineer role at Polymarket based?
Polymarket lists this Senior iOS Engineer role in New York, NY, United States, advertised as full time work at that location. Larger employers sometimes cover several sites under one city name, so confirm the exact office with Polymarket before you apply.
Is the Senior iOS Engineer role at Polymarket still open?
The Senior iOS Engineer posting at Polymarket was open at OnJob's last check of the employer's careers page, having been published on 16 June 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Senior iOS Engineer role at Polymarket?
Apply to the Senior iOS Engineer at Polymarket role through OnJob with a free profile: OnJob scores your fit against the listing, shows the skills lowering that score, and submits an ATS-ready profile to Polymarket's own application page. Creating a profile is free and needs no card.
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