PayPal · 1 day ago
Sr Software Engineer Python
San Jose, California, United States of America
Full-time
Hybrid
Mid, Senior Level
$144K/yr - $213K/yr
4+ years expPayPal has been revolutionizing commerce globally for more than 25 years. As a Senior Software Engineer focused on Identity and Authentication, you will develop large-scale, high-performance backend solutions that ensure trust, security, and seamless customer experiences.
E-Commerce PlatformsFinTechMobile PaymentsTransaction Processing
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
Qualification
Required
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
Preferred
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
Benefits
Generous paid time off
Healthcare coverage for you and your family
Resources to create financial security and support your mental health
Company
PayPal
PayPal is a financial service company that provides online payment solutions to its users worldwide.
10001+ employees
H1B Sponsorship
PayPal has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1144)
2024 (917)
2023 (775)
2022 (921)
2021 (1051)
2020 (1049)
Funding
Current Stage
Public CompanyTotal Funding
$12.17BKey Investors
Kohlberg Kravis Roberts & Co.Madison Dearborn Partners,VertexClearstone Venture Partners,Goldman Sachs
2025-11-17Post Ipo Debt· $6.95B
2023-06-07Post Ipo Debt· $5B
2015-07-20IPO
Leadership Team
Alex Chriss
President & CEO
Simon Bladon
PayPal UK CEO
Recent News
Crowdfund Insider
2026-02-08
2026-02-07
Company data provided by crunchbase