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Cash App · 6 hours ago

Software Engineer, Access

San Francisco Bay Area

Full-time

Hybrid

Senior Level

$180K/yr - $270K/yr

5+ years exp

Cash App, part of Block, is redefining the world's relationship with money through innovative financial products. The Access team is seeking a Software Engineer to design and build APIs and services for authentication and permissions, ensuring security while enabling product teams to move quickly.

BitcoinCryptocurrencyE-CommerceFinancial ServicesMobile Payments

Comp. & Benefits

H1B Sponsor Likely

Responsibilities

Design and build the APIs and services that power Authentication & Permissions across Cash App and Block's ecosystem, the systems that determine who can access what, and how they prove they are who they say they are

Build fine-grained permissions systems that enable different roles and capabilities across various account configurations

Build secure authentication experiences that protect customers while maintaining seamless access to their accounts

Improve account recovery success rates, helping legitimate customers regain access while keeping bad actors out

Consolidate authentication platforms, migrating critical flows into scalable, composable services

Design authorization primitives that product teams across Block can use to build secure, flexible experiences

Navigate complexity with pragmatism

Balance immediate business needs with long-term platform goals

Ship iteratively while keeping the big picture in mind

Collaborate across product, design, security, and engineering teams

Think critically about priorities

Adapt and thrive in an environment where priorities shift and requirements evolve

Qualification

API designAuthentication systemsDistributed systemsJavaKotlinGolangMySQLAWSCustomer empathyResilienceCommunicationAdaptability

Required

5+ years building and operating production systems with demonstrated impact and technical ownership

Ability to think critically and analyze complex problems, weigh trade-offs, and make pragmatic decisions that balance competing priorities

A bias toward iterative delivery. You know how to break big problems into shippable pieces and maintain momentum through ambiguity

Comfort with complexity. Whether it's large codebases, distributed systems, or evolving requirements, you don't get overwhelmed; you get strategic

Excellent communication skills. You can explain technical concepts clearly, build alignment across teams, and adapt your style to different audiences

Customer empathy. You understand that behind every API call is a person trying to access their money, and that matters

High technical standards in software testing, delivery, and operational excellence

Adaptability and resilience. You stay calm and focused when priorities shift or requirements change

Preferred

Experience with authentication, authorization, or identity systems

Experience working in large codebases and breaking apart monoliths

Background in security, fraud prevention, or trust & safety domains

Experience building platform or infrastructure that other engineering teams depend on

Track record working effectively in distributed or remote teams

Benefits

Remote work

Medical insurance

Flexible time off

Retirement savings plans

Modern family planning

Company

Cash App

Glassdoor3.9

Cash App is a mobile payment service that allows users to send, receive, and store money. It is a sub-organization of Block.

Founded in 2013

San Francisco, California, USA

1001-5000 employees

http://cash.app

H1B Sponsorship

Cash App has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (257)

2024 (253)

2023 (260)

2022 (297)