Top Tech Jobs & Startup Jobs

Build and operate high-throughput ledger, balance, settlement, and treasury systems. Design durable ledgering APIs, ensure data contracts, run reliable distributed transaction processing, meet SLOs, debug production, use AI tooling, lead projects, and mentor engineers.

The Engagement Marketing Manager will focus on activation and habituation through experimentation, analytics, and collaboration across Product, Engineering, and Design teams to drive customer engagement and product decisions.

Lead product-focused data science for Cash App Lending: define measurement frameworks, run experiments, analyze customer and risk data, use AI tools to accelerate analysis, partner with product/engineering/risk, drive technical standards, and mentor junior data scientists to inform product and policy decisions.

Design, build, and operate distributed ledger, transaction, settlement, and treasury systems. Develop durable ledgering APIs, emit trusted data for finance, maintain high-reliability services to SLOs, lead complex cross-team projects, mentor engineers, and integrate AI tooling across the development lifecycle.

Lead federal government engagement and lobbying strategy, deepen relationships with Congress and the Administration, track legislative and regulatory issues (financial regulation, consumer protection, digital assets, AI/privacy), and coordinate cross-functional policy responses to advance Block's objectives.

Lead end-to-end data science for Cash App Lending: define measurement frameworks, run experiments, evaluate model and policy performance, use AI tools to accelerate analysis, partner with product, engineering, and risk, and mentor junior data scientists to drive product and risk decisions.

Own end-to-end reconciliation and reporting for payment settlements: design automated SQL-based reports, reconcile card-network and banking reports to internal ledgers, drive discrepancy root cause and resolution, define metrics and controls, partner with Engineering/Data to build pipelines, support month-end close and audits, mentor analysts, and lead process automation and control improvements.

Field-based hunter sales role targeting restaurants, retailers, and service businesses. Build local pipeline via 50–60 weekly drop-ins, demos, and referrals, sell Square hardware and software in-person (80% of time), close complex deals, partner with onboarding and channel teams, use Salesforce to track activities, and meet monthly sales KPIs.

Lead end-to-end data science for Cash App lending products: define measurement frameworks, run experiments, evaluate model and policy performance, detect bias/drift, build decision support, and mentor junior data scientists while partnering with product, engineering, and risk.

Design, deploy, and maintain end-to-end ML-driven risk solutions at scale to detect and prevent fraud, abuse, and credit risk. Lead technical decisions, build ML tooling and processes, apply state-of-the-art models and third-party data, investigate emerging risk patterns, and collaborate with platform and cross-functional teams to ensure reliable real-time model operation.