Sr Software Engineer Python

Job Description Summary

At Pay Pal, 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.

• Deliver complete solutions spanning all phases of the Software Development Lifecycle (SDLC) including design, implementation, testing, delivery and operations.
• Advise immediate management on project‑level issues and make technical decisions based on industry best practices.
• Guide junior engineers and operate with minimal supervision.
• Apply knowledge of technical best practices to make design and architecture decisions.
• Design, develop, and maintain backend services for identity and authentication using 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, well‑tested code and participate in code reviews, design discussions, and process improvements.
• Troubleshoot and resolve complex technical issues across distributed systems and continuously optimize performance and reliability.

• 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.
• Familiarity with relational and/or No
  
  SQL databases.
• Experience with version control systems (e.g., Git) and collaborative development workflows.

• 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.

The Venmo Identity Engineering team powers the authentication and authorization experiences that millions of Venmo customers rely on every day. We design and build secure, high‑performance systems that drive trust and simplicity across Venmo’s ecosystem. Our team partners closely with product, design, and security to deliver innovative, customer‑first solutions.

• San Jose, California: $ – $ Annually
• Austin, Texas: $ – $ Annually

We offer a flexible work environment, employee share options, health and life insurance, and more. For more details see Pay Pal benefits.

Pay Pal 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, Pay Pal 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 paypalgloba