Jobs at Block

Build and operate highly reliable card-issuing systems at Block, focusing on network integrations, ISO 8583 message flows, authorization, clearing, certification, mandates, and production behavior. Lead complex cross-team engineering initiatives, create conformance tooling and shared frameworks, debug protocol-level issues, collaborate directly with card networks, mentor engineers, apply AI-assisted development practices, and participate in on-call support for critical financial systems.

Analyze product, customer, and risk data to guide Support and Risk Operations decisions. Define metrics, forecasting and staffing models, evaluate experiments and risk policies, monitor bias and model performance, and build scalable measurement frameworks. Use AI tools and agent workflows to improve analytical efficiency. Partner with product, engineering, risk, and business stakeholders, communicate insights, provide technical leadership, mentor data scientists, and contribute to hiring.

Own a North Seattle territory through field-based prospecting, business visits, live product demonstrations, consultative selling, and full-cycle deal closing. Build pipeline through cold outreach, community engagement, events, networking, and partnerships. Develop relationships with local sellers, provide onboarding support, maintain Salesforce pipeline accuracy, forecast performance, and consistently exceed sales quotas across Square’s software, hardware, and financial services ecosystem.

As a Staff Machine Learning Engineer, you'll enhance credit products through advanced modeling techniques, data analysis, and ML operations, supporting robust decision-making processes.

Own the full outbound sales cycle for mid-market merchants: prospect, build pipeline, run discovery and demos, negotiate multi-product deals, close new logos, forecast in Salesforce, and collaborate cross-functionally to exceed monthly and quarterly revenue targets.

As a Business Development Representative, you'll reach out to potential merchants, promote Square's services, manage a sales pipeline, and exceed monthly sales quotas while advancing your sales career.

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.

Convert inbound leads and generate outbound pipeline to close SMB merchants. Own full sales cycle, hit monthly/quarterly revenue goals, forecast in Salesforce, collaborate cross-functionally, and continuously improve conversion and deal metrics.

The Staff Machine Learning Engineer will lead ML initiatives, partnering with multiple teams to enhance customer support through AI-driven solutions, focusing on conversational agents and research in chatbot architectures.