Sr Software Engineer Python

PayPal • San Jose, CA

1d • Hybrid

About The Position

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 Software Engineers play a critical role in designing and building the systems that power secure global transactions every day. As a Backend Python Engineer focused on Identity and Authentication, you will develop large-scale, high-performance backend solutions that ensure trust, security, and seamless customer experiences. You’ll work on complex technical challenges, collaborate with cross-functional teams, and contribute to the evolution of Venmo's identity platform. This role requires strong problem-solving skills, deep technical expertise, and a passion for building reliable, scalable software.

Requirements

• 3+ years relevant experience and a Bachelor’s degree OR Any equivalent combination of education and experience.
• 4+ years of software engineering experience with a Bachelor’s degree OR equivalent combination of education and experience.
• Strong foundation in programming concepts, data structures, and algorithms.
• Proficiency in Python and experience with frameworks such as Django or Flask.
• Understanding of web services, REST APIs, and Service-Oriented Architecture (SOA).
• Familiarity with relational and/or NoSQL databases.
• Experience with version control systems (e.g., Git) and collaborative development workflows.

Nice To Haves

• Experience with identity and authentication technologies, including OAuth2 and secure token management.
• Exposure to large-scale, high-performance distributed systems.
• Familiarity with cloud platforms such as AWS, GCP, or Azure.
• Awareness of the payments industry and related compliance or regulatory standards.

Responsibilities

• Delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC) (design, implementation, testing, delivery and operations), based on definitions from more senior roles.
• Advises immediate management on project-level issues
• Guides junior engineers
• Operates with little day-to-day supervision, making technical decisions based on knowledge of internal conventions and industry best practices
• Applies knowledge of technical best practices in making decisions
• Design, develop, and maintain backend services for identity and authentication, leveraging Python and frameworks such as Django or Flask.
• Implement secure token management solutions, including OAuth2 and related standards.
• Build scalable, fault-tolerant systems that meet high availability and performance requirements.
• Collaborate with product managers, architects, and other engineers to deliver impactful business outcomes.
• Write clean, maintainable, and well-tested code while adhering to engineering best practices.
• Participate in code reviews, design discussions, and contribute to improving development processes.
• Troubleshoot and resolve complex technical issues across distributed systems.
• Continuously optimize system performance and reliability through proactive improvements.

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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level