Top Tech Jobs & Startup Jobs in NYC, NY

Build and own fraud metrics, dashboards, and reporting. Design and implement real-time monitoring, alerts, and predictive ML-driven risk controls. Balance loss savings with customer friction, run experiments (A/B tests), partner with GTM teams, summarize findings to stakeholders, and assist teams with fraud triage.

Provide advanced technical support for Rain's payments platform: troubleshoot APIs and integrations, read logs and run SQL queries, own incidents in 24x7 coverage, communicate with partners and internal teams, produce documentation and troubleshooting guides, and feed product and engineering insights to improve systems and roll out features.

As the lead iOS engineer, you'll own the mobile development lifecycle, collaborate with teams, build apps, and ensure secure data handling.

As a Customer Engineering Lead, manage customer engineering efforts, coordinate between post-sales and solutions teams, resolve technical issues, and identify efficiency improvements using AI.

Join Rain's AI team as a Backend Engineer to build scalable backend systems and AI-powered features while collaborating with business teams.

Build and operate central security systems, automation, tooling, and controls across cloud infrastructure, identity, access, products, partners, and vendors. Develop AI-assisted security workflows, lead external assessments through verified remediation, identify and validate vulnerabilities, guide engineering teams, and participate in incident response. The role requires production security engineering experience, strong programming skills, cloud security expertise, and fintech, payments, or crypto experience.

Own application security for backend services, APIs, cloud infrastructure, and edge systems handling financial transactions. Responsibilities include validating red-team findings, assigning severity, hardening services, implementing WAF and rate-limiting defenses, creating automated security configuration checks, expanding pull-request security gates, reviewing architectures, managing attack-surface coverage, and evaluating security tools. The role also partners with engineers and Security Operations to drive effective remediation.

Design and own secure, scalable wallet infrastructure for custody, key management, transaction signing, authorization, recovery, and multichain systems. Architect support for MPC, HSMs, secure enclaves, TEEs, smart contract wallets, account abstraction, and emerging cryptographic approaches. Define security boundaries, policy engines, secrets management, authentication, and programmable authorization while making foundational build-versus-buy decisions and guiding systems from first principles through production.