Sr Software Engineer

The Company

PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal empowers consumers and businesses in approximately 200 markets to join and thrive in the global economy.

We operate a global, two-sided network at scale that connects hundreds of millions of merchants and consumers. We help merchants and consumers connect, transact, and complete payments, whether they are online or in person. PayPal is more than a connection to third-party payment networks. We provide proprietary payment solutions accepted by merchants that enable the completion of payments on our platform on behalf of our customers.

We offer our customers the flexibility to use their accounts to purchase and receive payments for goods and services, as well as the ability to transfer and withdraw funds. We enable consumers to exchange funds more safely with merchants using a variety of funding sources, which may include a bank account, a PayPal or Venmo account balance, PayPal and Venmo branded credit products, a credit card, a debit card, certain cryptocurrencies, or other stored value products such as gift cards, and eligible credit card rewards. Our PayPal, Venmo, and Xoom products also make it safer and simpler for friends and family to transfer funds to each other. We offer merchants an end-to-end payments solution that provides authorization and settlement capabilities, as well as instant access to funds and payouts. We also help merchants connect with their customers, process exchanges and returns, and manage risk. We enable consumers to engage in cross-border shopping and merchants to extend their global reach while reducing the complexity and friction involved in enabling cross-border trade.

Our beliefs are the foundation for how we conduct business every day. We live each day guided by our core values of Inclusion, Innovation, Collaboration, and Wellness. Together, our values ensure that we work together as one global team with our customers at the center of everything we do – and they push us to ensure we take care of ourselves, each other, and our communities.

Job Summary:

Job Description:

PayPal, Inc. seeks Sr Software Engineer in San Jose, CA

Job Duties: Design and implement mobile Monorepo testing architecture utilizing NX build system, integrating CocoaPods dependency management, and establishing iOS-specific testing workflows to support scalable test execution across multiple mobile applications. Develop predictive test selection algorithms using machine learning techniques to analyze historical test data, code changes, and failure patterns, implementing these models within Harness CI to optimize test execution time by 40-60%. Architect unified user provisioning system by migrating disparate user creation mechanisms to a single-source conditioning platform, ensuring consistent test data management across all mobile testing environments. Build comprehensive metrics collection infrastructure to monitor mobile platform health, including custom instrumentation for tracking infrastructure issues, test flakiness rates, performance degradation, and resource utilization patterns. Design and implement mobile mutation testing platform using advanced code mutation techniques to validate test suite effectiveness, identifying gaps in test coverage and improving overall code quality metrics. Integrate Model Context Protocol (MCP) servers into mobile development workflows by implementing MCP-compatible interfaces that enable engineers to leverage AI/LLM capabilities for automated code generation, test case creation, debugging assistance, and documentation generation directly within their development environment. Develop sophisticated test automation frameworks leveraging XCTest and XCUITest, implementing custom assertions, test helpers, and reusable components that support both UIKit and SwiftUI applications. Create AI-powered test optimization pipelines within CI/CD systems, implementing intelligent test scheduling, parallel execution strategies, and dynamic resource allocation based on historical performance data. Engineer performance profiling and analysis tools for mobile applications, including automated memory leak detection, UI rendering performance validation, and network request optimization testing. Implement advanced test result analytics platform using data visualization and statistical analysis to identify testing trends, predict potential failures, and provide actionable insights to development teams. Design, develop, and maintain iOS applications using Swift, SwiftUI, UIKit, and Objective-C. Implement data persistence solutions using SwiftData and Core Data frameworks for local storage management. Develop asynchronous and concurrent operations using Swift Concurrency (async/await) and Combine framework. Integrate RESTful APIs and GraphQL services into iOS applications, implementing efficient networking layers, managing data synchronization, handling authentication flows, and optimizing query performance for both REST endpoints and GraphQL operations. Write unit tests and integration tests using Swift Testing framework and XCTest to ensure code quality. Collaborate with cross-functional teams to define, design, and ship new features. Lead code reviews and provide technical guidance to junior developers. Optimize application performance, memory usage, and battery consumption. Debug and resolve complex technical issues and crashes. Design and implement scalable, maintainable architecture patterns (MVC, MVVM, VIPER). Ensure applications meet Apple's Human Interface Guidelines and App Store requirements. Stay current with iOS SDK updates and new Apple technologies. Partial telecommuting permitted from within a commutable distance.

Minimum Requirements: Bachelor’s degree, or foreign equivalent, in Computer Science, Engineering or a closely related field plus five years of experience in the job offered or a related occupation.

Special Skill Requirements:

1\. Experience designing and developing mobile applications using Swift programming language and iOS SDK (5 years)

2\. Experience developing user interfaces for iOS applications using SwiftUI framework and declarative programming (3 years)

3\. Experience building iOS applications using UIKit framework (5 years)

4\. Experience developing asynchronous operations using Swift Concurrency including async/await (2 years)

5\. Experience implementing data persistence and management in iOS applications using Core Data framework (3 years)

6\. Experience with Swift Data framework (1 year)

7\. Experience with reactive programming using Combine framework for iOS applications (3 years)

8\. Experience writing unit tests and UI tests for iOS applications using XCTest and XCUITest frameworks (5 years)

9\. Experience with Swift Testing framework (1 year)

10\. Experience with iOS debugging and performance profiling tools including Xcode instruments (5 years)

11\. Experience with dependency management using Swift Package Manager, CocoaPods, or Carthage (3 years)

12\. Experience with mobile application architecture patterns including MVVM, MVC, or clean architecture (5 years)

13\. Experience designing and integrating RESTful APIs in iOS applications using URLSession (3 years)

14\. Implement CI/CD pipelines for automated builds and deployments of iOS apps (1 year)

15\. Experience implementing machine learning workflows in mobile applications using XGBoost or similar gradient boosting algorithms (1 year)

Additional Responsibilities & Preferred Qualifications:

EOE, including disability/vets.

The base pay for this role will depend on where you work and the relevant experience and expertise you bring. The expected range of pay for this role by location is:

Primary Location | Pay Range:

San Jose, California | Salary: $169,576.00-243,500.00 per annum. 40 hours per week; M-F, 9:00 a.m. to 5:00 p.m.

Additional compensation for this role may include an annual performance bonus, equity, or other incentive compensation, as applicable.

Must be legally authorized to work in the U.S. without sponsorship.

Subsidiary:

PayPal

Travel Percent:

0

PayPal does not charge candidates any fees for courses, applications, resume reviews, interviews, background checks, or onboarding. When making an application directly, we will never ask you to share passwords, one-time passcodes (OTP), or verification codes. Any such request is a red flag and likely part of a scam. All communication regarding your application will come from official PayPal email domains. If you suspect fraudulent activity, please report it immediately. To learn more about how to identify and avoid recruitment fraud please visit https://careers.pypl.com/contact-us.

For the majority of employees, PayPal's balanced hybrid work model offers 3 days in the office for effective in-person collaboration and 2 days at your choice of either the PayPal office or your home workspace, ensuring that you equally have the benefits and conveniences of both locations.

Our Benefits:

At PayPal, we’re committed to building an equitable and inclusive global economy. And we can’t do this without our most important asset-you. That’s why we offer comprehensive, choice-based programs, to support all aspects of personal wellbeing—physical, emotional, and financial—delivering meaningful value where it matters most. We strive to create a flexible, balanced work culture with a holistic approach to benefits, including generous paid time off, healthcare coverage for you and your family, and resources to create financial security and support your mental health.

Who We Are:

Click Here to learn more about our culture and community.

Commitment to Diversity and Inclusion

PayPal provides equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, pregnancy, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state, or local law. In addition, PayPal will provide reasonable accommodations for qualified individuals with disabilities. If you are unable to submit an application because of incompatible assistive technology or a disability, please contact us at [email protected].

Belonging at PayPal:

Our employees are central to advancing our mission, and we strive to create an environment where everyone can do their best work with a sense of purpose and belonging. Belonging at PayPal means creating a workplace with a sense of acceptance and security where all employees feel included and valued. We are proud to have a diverse workforce reflective of the merchants, consumers, and communities that we serve, and we continue to take tangible actions to cultivate inclusivity and belonging at PayPal.

Any general requests for consideration of your skills, please Join our Talent Community.

We know the confidence gap and imposter syndrome can get in the way of meeting spectacular candidates. Please don’t hesitate to apply.