Senior Backend 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 Description Summary:

What you need to know about the role-
As a member of PayPal's Rate Limiting Platform team within the Developer Platform Engineering Organization, your work will play a crucial role in ensuring the availability, reliability, performance, and security of PayPal's systems. We are seeking a highly talented, enthusiastic, and motivated engineer to join our team, contributing to one of the most influential payment platforms in the world. We expect you to be collaborative, creative problem solvers with the ability to manage multiple projects simultaneously. You will be involved in all aspects of application development, including gathering requirements, designing, coding, implementing security measures, testing, and managing production releases.
In this role, you will be responsible for delivering new features, enhancements, and fixes to the platform that detects and mitigates abusive traffic. You will collaborate closely with engineers, architects, product owners, and program managers to build, test, and deliver features that impact millions of PayPal users globally.
The ideal candidate will have a strong foundation in Java and experience working with large-scale distributed systems. Success in this role requires strong problem-solving skills, attention to detail, and the ability to thrive in a fast-paced environment.
Meet our team
The Rate Limiter platform at PayPal is essential for protecting the company from cyber-attacks such as DDoS and credential stuffing. This platform is responsible for rate-limiting all PayPal traffic, effectively stopping abusive traffic before it reaches the core services. Our team is dedicated to staying ahead of cyber threats by developing features that perform anomaly detection and enforce rate limiting. We advocate for developers' needs by fully immersing ourselves in their journey, driving customer-centric innovation that safeguards PayPal from online fraud. Our platform comprises solutions designed to address real-world challenges related to Cyber Security. As part of our day-to-day work, we push the boundaries of innovation and dedication, ensuring we not only meet but surpass the cybersecurity challenges of the future.

Job Description:

Your way to impact 

As a Senior Backend Engineer, you will play a key role in developing and maintaining core platform backend services responsible for rate limiting and anomaly detection at PayPal. Your work will directly enhance PayPal's threat detection and mitigation capabilities, improving the overall security and availability of PayPal's services.

In this role, you will support other product development teams by implementing various mechanisms to protect applications from large-scale cyber-attacks, such as those from botnets and fraud networks. Leveraging your extensive technical expertise, you will work to minimize friction for legitimate traffic while ensuring that abusive traffic encounters maximum resistance, utilizing industry-standard practices.

Your day to day 

In your day-to-day role you will:

• Design, develop, test, and deploy multi-tier distributive software applications using Java in a Linux/Unix environment, ensuring high performance, security, and scalability.
• Independently work on multiple product features, utilizing your technical expertise to propose innovative solutions for both new and existing functionalities, informed by a growing understanding of our products and the business domain.
• Manage your own project deliverables, timelines, and priorities, effectively balancing multiple tasks to meet project deadlines and performance targets.
• Actively engage in design and code reviews, providing constructive feedback to peers and incorporating feedback into your own work to maintain high standards of code quality and functionality.
• Drive innovation through rapid prototyping and iterative development.
• Be able to quickly ramp-up on the many different components/services - built on different technology stacks, Operations Systems and use different build and deploy pipelines.
• Be able to work closely with the users of the system to understand their problems and exercise empathy and maturity while working with them to solve the problems.
• Troubleshoot critical issues in a timely manner and recommend the root cause fixes for the issues.
• Ability to work collaboratively with team members to achieve end vision.

What do you need to bring- 

• Bachelor’s or Master’s degree in Computer Science or Computer Engineering.
• 4+ years of relevant experience.
• Proficient in developing large-scale applications using Java and Spring technologies, with a solid understanding of both SQL and NoSQL databases.
• Demonstrated success in building modern, resilient, and operationally efficient backend systems at scale, adhering to industry standards such as HTTP, REST, and microservices architecture.
• Exceptional debugging skills for issue resolution and solution identification.
• Strong experience with Git and collaborative code management practices.
• Experience with cloud platforms, particularly AWS or Google Cloud.
• Familiarity with monitoring and logging tools like Datadog, Open Telemetry, and Splunk, and experience in monitoring production systems and resolving issues promptly.
• Flexible and eager to learn new technologies and adapt quickly.
• Experience with go lang is a plus.
• Experience with containerization (Docker) and orchestration tools (Kubernetes) is a plus.

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

Additional Job Description:

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 https://www.paypalbenefits.com

Who We Are:

Click Here to learn more about our culture and community.

PayPal has remained at the forefront of the digital payment revolution for more than 20 years. By leveraging technology to make financial services and commerce more convenient, affordable, and secure, the PayPal platform is empowering more than 400 million consumers and merchants in more than 200 markets to join and thrive in the global economy. For more information, visit paypal.com.

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].

As part of PayPal’s commitment to employees’ health and safety, we have established in-office Covid-19 protocols and requirements, based on expert guidance. Depending on location, this might include a Covid-19 vaccination requirement for any employee whose role requires them to work onsite. Employees may request reasonable accommodation based on a medical condition or religious belief that prevents them from being vaccinated.

Subsidiary:

PayPal

Travel Percent:

0

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 https://www.paypalbenefits.com.

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.