Mobile Infrastructure Engineer

About the Role

Polymarket is looking for a Mobile Infrastructure Engineer to own mobile infrastructure end-to-end: the release pipeline, CI, test infrastructure, stability, and observability that let a small mobile platform team ship a high-traffic trading product quickly and safely. You'll also help build our AI layer — the harnesses, evaluations, and developer tooling that make AI a first-class part of how we build and ship mobile software.

This is a generalist, hands-on role. You'll build and operate the tooling behind how the team ships — release automation, CI, test infrastructure, observability — and extend that toolchain with AI. The work spans services and code: alongside the pipelines and dashboards, you'll go into the app itself to fix crash clusters and harden error paths. We're looking for someone who has kept a high-traffic consumer mobile product shipping reliably.

What You'll Do

• Own the release tooling across iOS and Android: automated builds, code signing, store submission, phased rollouts, hotfix paths, and post-release health checks after every deployment

• Build and maintain CI infrastructure that earns trust: build-time budgets, flaky-test detection and quarantine, merge gates, and device and simulator infrastructure that keeps feedback loops short

• Build the quality tooling: regression gates and automated coverage that let the team set and defend crash-free and ANR targets — and go directly into app code to fix crash clusters and harden error paths when the tooling surfaces them