Senior Site Reliability 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:

At PayPal, Senior Site Reliability Engineers (SREs) drive the reliability, performance, and availability of our global mobile and backend systems. As part of our new Mobile SRE team, you'll bridge the gap between iOS and Android clients and the backend services that power them, delivering seamless experiences for millions of customers. In this hands-on role, you'll implement reliability standards, build automation, and enhance observability across the stack. By developing actionable insights, automating key workflows, and advancing operational excellence, you'll help ensure PayPal's platforms deliver reliable, high-performance experiences customers can trust worldwide.

Job Description:

Essential Responsibilities:

• Manage and deliver large-scale reliability improvement projects, ensuring systems are performant, available, and resilient.
• Drive the identification of performance bottlenecks and lead initiatives to optimize and scale critical systems and services.
• Architect and implement scalable infrastructure solutions to support growing user demands while maintaining system reliability.
• Lead the design and enhancement of monitoring frameworks, ensuring systems are highly observable, and support the response to production incidents.
• Take ownership of improving system resilience by designing fault-tolerant architectures and implementing disaster recovery strategies.
• Lead capacity planning initiatives to ensure system resources are proactively managed, preventing downtime or performance degradation under high load.
• Work closely with development, operations, and other technical teams to ensure seamless system integration and align on best practices for reliability.
• Act as a technical mentor within the organization, guiding teams through complex reliability challenges and promoting a culture of excellence.
• Help define and execute long-term reliability engineering strategies and standards to ensure the scalability and performance of core services.
• Develop and enforce best practices for operational excellence, including automation, incident management, and system monitoring, across engineering teams.

Expected Qualifications:

• 5+ years relevant experience and a Bachelor's degree OR Any equivalent combination of education and experience.

Additional Responsibilities & Preferred Qualifications:

Additional Qualifications

• Proven experience in Site Reliability Engineering, software development, or systems engineering, with a focus on end-to-end system reliability and performance.
• Strong understanding of backend architectures, including APIs, data flows, and cross-system dependencies.
• Hands-on experience developing monitoring, observability, and alerting solutions using tools such as Datadog, Firebase Crashlytics, or Sentry.
• Skilled in automation and tooling development using Python, Go, or similar languages to reduce manual processes and improve efficiency.
• Experience implementing SLIs/SLOs and leveraging metrics to drive measurable improvements in reliability and availability.
• Solid foundation in distributed systems, cloud infrastructure (AWS, GCP, or Azure), and CI/CD pipelines for reliable software delivery.
• Strong debugging and problem-solving skills, capable of diagnosing and resolving complex issues across mobile, API, and backend systems.
• Effective collaborator and communicator, skilled at partnering across mobile, backend, and SRE teams to deliver cohesive reliability outcomes.
• Demonstrated ability to mentor engineers and foster a culture of observability, automation, and operational excellence.

Preferred Qualifications

• Understanding of mobile (iOS and Android) applications
• Experience improving incident response workflows, postmortem and on-call models processes.
• Background in performance optimization, fault tolerance, and disaster recovery for large-scale systems.
• Experience collaborating within distributed or global engineering teams.

Subsidiary:

PayPal

Travel Percent:

0

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PayPal is committed to fair and equitable compensation practices.

Actual Compensation is based on various factors including but not limited to work location, and relevant skills and experience.

The total compensation for this practice may include an annual performance bonus (or other incentive compensation, as applicable), equity, and medical, dental, vision, and other benefits. For more information, visit

The US national annual pay range for this role is $111,500 to $191,950

PayPal does not charge candidates any fees for courses, applications, resume reviews, interviews, background checks, or onboarding. Any such request is a red flag and likely part of a scam. To learn more about how to identify and avoid recruitment fraud please visit

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 benefits to help you thrive in every stage of life. We champion your financial, physical, and mental health by offering valuable benefits and resources to help you care for the whole you.

We have great benefits including a flexible work environment, employee shares options, health and life insurance and more. To learn more about our benefits please visit 

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

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.

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