Sr Software Engineer Python

Job 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 SDLC (design, implementation, testing, delivery, and operations), based on definitions from more senior roles.
• Advise immediate management on project‑level issues.
• Guide junior engineers.
• Operate with little day‑to‑day supervision, making technical decisions based on knowledge of internal conventions and industry best practices.
• Apply 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.

• 3+ years relevant experience and a Bachelor’s degree or 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 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.

• Generous paid time off.
• Healthcare coverage for you and your family.
• Resources to support financial security and mental health.

For the majority of employees, Pay Pal's balanced hybrid work model offers 3 days in the office and 2 days at a choice of either the Pay Pal office or your home workspace.

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 us at paypalgloba