Jobs at Cash App

Lead the development of foundational iOS platform systems, shared frameworks, developer tools, architecture standards, and multi-quarter migrations across Cash App and Square. Drive performance, reliability, security, testing, observability, release safety, and AI-assisted development practices. This hands-on individual contributor role influences multiple teams, develops technical leaders, and partners broadly to improve iOS engineering quality, productivity, and product outcomes.

Own AI and developer-experience analytics end to end, including telemetry instrumentation, production data pipelines, metric governance, executive dashboards, and analysis. Define trustworthy metrics from evolving signals, monitor pipeline quality, communicate insights to senior stakeholders, and recommend actions to improve AI ROI and developer productivity. Use AI coding agents to build and maintain pipelines, dashboards, and analyses while partnering with data engineering, applied AI, and data science teams.

Build internal services and infrastructure that support privacy initiatives and consumer privacy rights. Collaborate with engineering, security, platform, and legal teams to integrate privacy technologies, define privacy architecture, mentor engineers, review implementations, and maintain reliable privacy solutions. The role focuses on responsible data use, governance, data flows, access controls, and reducing privacy risk across Block’s engineering ecosystem.

Build and lead foundational Android platform infrastructure used across Cash App. Responsibilities include evolving architecture, shared libraries, developer tooling, observability, performance systems, and cross-platform engineering practices. The role drives AI-native development, leads organization-wide technical initiatives, conducts architecture reviews, identifies systemic risks, mentors engineers, and aligns platform investments with product teams. Requires deep Android expertise, strong systems thinking, organizational leadership, and 10+ years of experience.

Staff Android Software Engineer responsible for owning Cash App’s foundational Android platform, including architecture, shared libraries, infrastructure, developer tooling, observability, performance, and experimentation systems. The role drives AI-native engineering practices, leads cross-organizational technical initiatives, establishes standards, mentors engineers, and partners across mobile, web, backend, product, and design teams. Requires deep Android expertise and organizational-level impact.

Build and own foundational Android platform infrastructure, shared libraries, architecture, developer tooling, observability, and performance systems. Lead AI-native engineering practices, evaluate AI development tools, drive cross-organizational technical initiatives, establish scalable standards, mentor engineers, and collaborate across Android, iOS, web, backend, product, and design teams.

Leads end-to-end machine learning initiatives for Block’s support experiences, including conversational AI, chatbots, recommendation systems, and agent tools. Defines ML roadmaps, guides research into LLMs, RAG, fine-tuning, and real-time inference, and designs, deploys, and maintains production models. The role requires strategic technical leadership, cross-functional influence, stakeholder communication, and extensive experience delivering applied ML and generative AI systems.

Own end-to-end analytics pipelines for AI usage, developer experience, engineering productivity, and spend. Instrument telemetry, build governed ETL workflows, define trusted metrics, and create executive dashboards and visual narratives. Analyze results, recommend improvements to AI ROI and developer experience, and communicate methodology to senior stakeholders. Collaborate across data engineering, applied AI, and data science while using AI coding agents to build, test, and maintain production data systems.

Manage enterprise KYC due diligence policy and strategy across Block’s business lines. Develop and maintain KYC standards, assess regulatory changes, guide implementation, define AI/ML risk-segmentation and identity-verification controls, monitor program performance, advise stakeholders, support audits and examinations, and remediate compliance risks including model bias, drift, false positives, false negatives, and explainability gaps.

Build and operate highly reliable card-issuing systems at the network boundary. Responsibilities include interpreting specifications, protocols, certifications, mandates, and production behavior; developing production software and conformance tooling; analyzing network messages; driving certification cycles; influencing card networks; mentoring engineers; applying AI-assisted engineering practices; and participating in on-call support for critical financial systems.

Staff Software Engineer responsible for building and operating Block’s card issuing platform at the network boundary. The role requires deep expertise in card networks, ISO 8583, authorization and clearing flows, certifications, mandates, and direct network connectivity. Responsibilities include writing production code, developing conformance tooling, debugging protocols, leading cross-team technical initiatives, influencing network requirements, mentoring engineers, supporting AI-assisted development, and participating in on-call operations for critical financial systems.

Lead hands-on engineering for Block’s card issuing platform, specializing in card-network integrations, ISO 8583 protocols, authorization, clearing, certification, mandates, and production behavior. Build software and conformance tooling, resolve network-level issues, drive certification cycles, influence technical direction, mentor engineers, apply AI-assisted development practices, and participate in on-call support for critical financial systems.

Leads a team of five outbound business development representatives generating SMB and mid-market merchant pipeline. Responsibilities include hiring, onboarding, coaching, performance management, outbound strategy, messaging, account targeting, and cross-functional collaboration with sales, marketing, CRM, and strategy teams. The role also requires using data, AI capabilities, and modern sales technology to improve team performance and operations.

Own federal and state tax software updates from research through launch. Translate tax law changes into product requirements, calculations, UI, documentation, PDFs, e-file/XML, and test scenarios. Review targeted code changes, collaborate with engineering and quality teams, conduct regression and launch testing, and resolve filing defects and rejections with tax agencies and internal partners.

Build and operate production machine learning systems for ranking, retrieval, recommendations, search, propensity, churn, lifecycle intelligence, and next-best-action decisioning. Design reliable signal contracts with freshness, provenance, confidence, and calibration guarantees. Lead experimentation, monitoring, feedback loops, and impact evaluation focused on fairness, trust, risk, compliance, and long-term engagement. Partner across product, growth, data, platform, modeling, risk, and compliance teams.

Originate and lead brand platforms, repositioning efforts, and campaign ideas from concept through activation. Shape creative briefs, maintain brand coherence across products and media, and direct designers, writers, and production partners. Set creative standards while remaining hands-on, collaborate with marketing, product, partnerships, and cross-functional leadership, and identify cultural shifts to inform impactful work.

Build and maintain backend systems powering Cash App Taxes, including federal and state tax logic and e-file submission. Translate complex tax requirements into reliable, scalable, well-tested software; create tools enabling safe contributions; make architectural decisions; and improve accuracy, performance, security, deployment, and documentation. Collaborate with tax specialists, product, QA, cloud platform, design, customer care, and other teams while applying AI coding tools and best practices.

Build and operate a scalable data platform supporting warehousing, orchestration, business intelligence, governance, and agentic workflows. Develop Python services, Terraform infrastructure, and developer tools for petabyte-scale data. Partner with data practitioners and product teams, establish security and reliability patterns, set technical direction, improve engineering standards, and mentor engineers.

Owns end-to-end reconciliation and financial reporting across card networks, banks, processors, and internal ledger data. Designs SQL-based reporting, dashboards, exception queues, metrics, controls, and automated solutions; investigates discrepancies, improves data pipelines, supports month-end close and audits, and partners with Finance, Accounting, Treasury, Tax, Compliance, Engineering, and Product. Mentors analysts and drives process improvements, automation, and responsible AI adoption.

Own complex Banking design initiatives end to end, creating zero-to-one financial product experiences and improving existing products. Set the design quality bar, shape product vision and strategy, prototype with AI and emerging tools, and translate financial and regulatory complexity into clear experiences. Partner with Product, Engineering, Risk, Compliance, and Research while extending design systems and mentoring designers through critique, feedback, and hands-on example.