PayPal · 2 months ago
Sr Software Engineer, Ruby on Rails
Chicago, Illinois, United States of America
Full-time
Hybrid
Mid, Senior Level
$124K/yr - $213K/yr
3+ years expPayPal is a company that has been revolutionizing commerce globally for more than 25 years. As a Sr Software Engineer on the Bill Pay Engineering team, you will work on an integrated payment processing service solution for Billing Aggregators that directly contributes to PayPal’s growth.
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
Implement and enhance observability frameworks including logging, tracing, metrics, and alerting using Splunk, Datadog, Sentry, and PagerDuty
Collaborate with SRE and cloud teams to design and maintain high-availability architectures across AWS and GCP
Lead Incident and Problem Management practices — ensuring rapid detection, efficient triage, root cause analysis, and long-term remediation
Define and maintain SLIs/SLOs, build dashboards, and automate monitoring and alerting workflows
Contribute to on-call rotations and ensure incident response readiness across critical systems
Design, build, and optimize backend services and APIs using Ruby on Rails and PostgreSQL data systems
Leverage PostgreSQL and GCP BigQuery for performance tuning, analytics, and data consistency across transactional systems
Collaborate with cross-functional teams to deliver secure, scalable, and reliable payment solutions
Participate in code reviews, design discussions, and technical planning to drive excellence in system architecture and development
Build automation, integration pipelines, and scalable components leveraging AWS/GCP cloud services
Qualification
Required
3+ years relevant experience and a Bachelor's degree OR Any equivalent combination of education and experience
Solid backend or platform engineering experience in high-availability, transaction-heavy, or FinTech environments
Experience with Ruby on Rails for building backend APIs and services
Solid SQL development skills with PostgreSQL and GCP BigQuery
Strong proficiency with AWS and GCP Cloud infrastructure and services
Hands-on expertise in observability tools: Splunk, DataDog, PagerDuty
Proven experience in Incident Management and Problem Management from detection to post-incident review
Excellent troubleshooting, analytical, and collaboration skills across distributed systems
Preferred
Track record in designing and writing understandable, testable, and easy-to-maintain software
Deep knowledge of industry design patterns and object-oriented programming
Comfortable with context switching and managing across multiple priorities
Be a quick learner undaunted by complex systems. Ability to expand to new domains and be able to pick up and contribute quickly
Ability and desire to work in our collaborative environment: open team room, pair programming and fluid interactions with all products and operations teams
High interest in Test Driven Development and specific experiences using a test heavy approach to solve problems and create solutions
Commitment to operational excellence through the development of automation, instrumentation of code, and end-to-end monitoring solutions
Understanding of Network OSI model, SQS, Kafka, Data Replication, and API integrations
Experience designing scalable architectures in AWS
Exposure to AI/ML, particularly LLM (Large Language Model) integrations
ITIL v4 Certification or demonstrated familiarity with IT service management best practices
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
Financial Sector Technology
2026-01-11
Digital Trends
2026-01-11
Company data provided by crunchbase