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PayPal Sr Software Engineer Ruby Rails 
United States, Illinois, Chicago 
907894227

Today

Essential 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

Expected Qualifications:

  • 3+ years relevant experience and a Bachelor’s degree OR Any equivalent combination of education and experience.

Preferred Qualification:

In your day-to-day role you will work ondesigning andbuilding a seamless omnichannel payment acceptance solutionBilling Aggregatorsof helpingstreamline onboarding,increase authorization rates, reduce costs, reduceand drive conversion.You will gain exposure to cross functional technology and business domains such as transaction processing, settlement, pricing, and reporting. You will have the chance to work on various teams and technology stacks.

We practice test-driven development andstrongly encourage aculture ofDevelopers test,their own code.with daily stand-ups and have regular retrospectives toinspect and adapt our working model and processes to increase quality and effectiveness

We value unique perspectives brought by diverse backgrounds and experiences. A broad range of ideas and perspectives help us to create the best possible product.

What we look for in you:

  • Track recordin designing and writing understandable, testable, and easy-to-maintain software

  • Deep knowledge of industry design patterns and object-oriented programming

  • Operates with little day-to-day supervision, making technical decisions based on knowledge of internal conventions and industry best practices

  • 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.

  • end-to-endmonitoring solutions.

  • immediate management on project-level issues

Platform Reliability & Observability

  • Implement and enhance observability frameworks including logging, tracing, metrics, and alerting using Splunk, Datadog,Sentry, and PagerDuty.

  • maintainhigh-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.

Core Development & Feature Delivery

  • Design, build, andoptimizebackend services and APIs using Ruby on Rails andPostgreSQLdata systems.

  • GCPBigQueryfor 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 componentsleveragingAWS/GCP cloud services.

Required Skills

  • 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 GCPBigQuery

  • proficiencywith AWS and GCP Cloud infrastructure and services.

  • expertisein 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.

Bonus / Preferred Skills

  • 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 ordemonstratedfamiliarity with IT service management best practices.

  • teammodernizing and scaling a critical FinTechplatform.

  • Shape the future of our observability and reliability ecosystem, setting standards across the organization.

  • Work in a culture that values technical excellence, ownership,pairprogramming,and continuous improvement.

  • Competitive compensation, flexible hybrid workmodel, and real opportunities for career growth across platform and product domains.

Travel Percent:

The total compensation for this practice may include an annual performance bonus (or other incentive compensation, as applicable), equity, and medical, dental, vision, and other benefits. For more information, visit .

The US national annual pay range for this role is $123,500 to $212,850


Our Benefits:

Any general requests for consideration of your skills, please