Top Tech Jobs & Startup Jobs in NYC, NY

Own US unit economics end-to-end: build driver-based cohort and margin models, maintain weekly revenue and gross-margin forecasts, decompose payments/fraud/incentive costs, produce KPI reporting for leadership, partner with growth/product to size opportunities, and deliver analyses that inform strategic resource and pricing decisions.

Manage day-to-day execution of high-value media partnerships (WSJ, Substack, StockTwits, RealClearPolitics). Coordinate creatives, track referral traffic and placement performance, handle technical integrations (APIs, iFrames, SDKs), pitch and onboard new partners, build tracking systems, and drive deal expansion and renewals.

Own mobile quality for a fast-moving product: perform hands-on end-to-end manual testing on iOS and Android, sign off releases, improve an AI-driven testing harness, extend automated coverage across core trading and market resolution flows, surface bugs early with engineers, and clearly communicate quality status to PMs and leadership.

Serve as the legal-product bridge, vetting new market categories and features for regulatory exposure, translating legal constraints into product requirements, embedding legal thinking into design, building internal frameworks, monitoring regulatory developments, and making fast defensible decisions to keep product moving while managing compliance risk.

Lead Growth Engineering architecture and implementation: build Go-based data pipelines, audit/replace martech, create experimentation infrastructure, ship full-stack Go/TypeScript features, productionize ML, review team work, and apply AI-assisted development daily.

Interns will enhance Polymarket's outreach by driving awareness, creating content, and leading local events, while learning from industry experts.

Own technical onboarding and post‑onboarding support for market makers and institutional partners across CLOB, WebSocket feeds, RFQ gateway, and SDKs. Debug production integrations, write/maintain integration guides and code samples in Python and TypeScript, monitor integration health, and translate partner feedback into actionable product and engineering items.