Top Tech Jobs & Startup Jobs in Los Angeles, CA

As a Senior Software Engineer on the Cash App Banking team, you will lead the design, execution, and delivery of banking features, collaborating across teams to enhance the user experience.

Design, deploy, and maintain end-to-end ML risk solutions at scale to detect and prevent fraud, merchant risk, and credit loss. Partner with cross-functional teams, lead technical decisions, build ML tooling, monitor models in production, and investigate emerging abuse patterns to improve detection and decisioning.

Design, build, test, ship, and operate services powering card issuance, transaction processing, and disputes. Own features end-to-end within a microservice and event-driven architecture, write well-tested code, participate in on-call incident response, and leverage AI tools to improve development velocity and quality while collaborating with cross-functional teams.

Looking for a Software Engineer to build financial products and tooling for Cash App's Lending team, ensuring quality and compliance while collaborating across domains.

Own and build Block's furnisher and consumer reporting disputes program under FCRA end-to-end: policies, controls, monitoring, remediation, workflows, training, and regulator engagement. Define reasonable investigation standards, design data-correction remediation paths with data and modeling teams, root-cause recurring data defects, and advise product and engineering to bake in reporting accuracy.

The Senior Technical Account Manager will act as a technical partner to Cash App Pay and Afterpay merchants, optimizing integrations and ensuring growth through collaboration and technical solutions.

Senior individual contributor building and maintaining underwriting and credit decisioning ML systems for Cash App Borrow and Afterpay. Responsibilities include feature engineering, model training, calibration, experimentation, deployment, monitoring, and portfolio-level analysis. Collaborate with cross-functional teams to align models with business and regulatory goals and develop AI-native engineering workflows and governance for reliable, auditable model development.

Senior individual-contributor program manager owning issuer and processor partner relationships end-to-end. Drive partner onboarding, technical integration, BIN setup, compliance, SLAs, incident response, and launch readiness while coordinating Product, Engineering, Legal, Compliance, and Operations to deliver scalable card experiences.

Own and lead federal bank examinations for Block affiliates, act as primary regulator contact, manage exam cycles end-to-end, coordinate cross-functional responses, and maintain institutional regulatory knowledge and post-exam remediation.

The role involves supporting integration and sales of Square's Developer Platform, collaborating with partners, and advising on solutions for sellers.