PayPal · 13 hours ago
Sr Software Engineer- Ruby on Rails
Chicago, IL
Full-time
Hybrid
Mid, Senior Level
$124K/yr - $213K/yr
3+ years expPayPal has been revolutionizing commerce globally for more than 25 years. As a Senior Software Engineer in the Braintree Fraud Tools team, you will drive the design and development of innovative solutions to enhance product quality, focusing on developing new features and improving observability, performance, and monitoring capabilities.
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
Own implementation of a module/application/product
Develop efficient, elegant, clean code with no unnecessary complication or abstraction
Deliver code in an agile team environment
Collaborate with other engineers, architects, and cross-vertical teams
Build new APIs to enhance the portfolio of PayPal’s services
Build and take operational responsibility for microservices that serve millions of users
Identify any product/functionality gaps and collaborate with internal product and technology teams to define the necessary development to support solution delivery
Qualification
Required
3+ years relevant experience and a Bachelor's degree OR Any equivalent combination of education and experience
Solid understanding of Ruby language and working experience in Rails framework
Good understanding of web services and related standards like REST/JSON and gRPC
Experience in Object-Oriented programming and concepts
Solid understanding of algorithms and design patterns
Experience in interacting with engineering teams from multiple geo-locations
Experiences in both relational and non-relational DB, like Oracle and Aerospike/Redis
Experience in Junit and TestNG
Exposure to Agile methodologies
Strong problem-solving skills
Proven track record in delivering highly available, scalable systems on time
Preferred
Knowledge in Java Reactive programming, Spring framework, Spring boot is a strong plus
Financial or Payment industry experience is preferred
Benefits
Flexible work environment
Employee shares options
Health and life insurance
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 RobertsBlueRun Ventures
2025-11-17Post Ipo Debt· $6.95B
2023-06-07Post Ipo Debt· $5B
2015-07-20IPO
Leadership Team
Simon Bladon
PayPal UK CEO
chaloem khompitoon
President & CEO
Recent News
2026-01-14
2026-01-13
The Real Deal
2026-01-13
Company data provided by crunchbase