Job Title: Sr Software Engineer Company Name: PayPal Job Url: https://paypal.wd1.myworkdayjobs.com/jobs/job/San-Jose-California-United-States-of-America/Sr-Software-Engineer_R0135754-1 Job Description: Sr Software Engineer Apply locations San Jose, California, United States of America Chicago, Illinois, United States of America time type Full time posted on Posted Yesterday job requisition id R0135754 The Company PayPal has been revolutionizing commerce globally for more than 25 years. Creating innovative experiences that make moving money, selling, and shopping simple, personalized, and secure, PayPal empowers consumers and businesses in approximately 200 markets to join and thrive in the global economy.  We operate a global, two-sided network at scale that connects hundreds of millions of merchants and consumers. We help merchants and consumers connect, transact, and complete payments, whether they are online or in person. PayPal is more than a connection to third-party payment networks. We provide proprietary payment solutions accepted by merchants that enable the completion of payments on our platform on behalf of our customers. We offer our customers the flexibility to use their accounts to purchase and receive payments for goods and services, as well as the ability to transfer and withdraw funds. We enable consumers to exchange funds more safely with merchants using a variety of funding sources, which may include a bank account, a PayPal or Venmo account balance, PayPal and Venmo branded credit products, a credit card, a debit card, certain cryptocurrencies, or other stored value products such as gift cards, and eligible credit card rewards.  Our PayPal, Venmo, and Xoom products also make it safer and simpler for friends and family to transfer funds to each other. We offer merchants an end-to-end payments solution that provides authorization and settlement capabilities, as well as instant access to funds and payouts. We also help merchants connect with their customers, process exchanges and returns, and manage risk. We enable consumers to engage in cross-border shopping and merchants to extend their global reach while reducing the complexity and friction involved in enabling cross-border trade.  Our beliefs are the foundation for how we conduct business every day.  We live each day guided by our core values of Inclusion, Innovation, Collaboration, and Wellness. Together, our values ensure that we work together as one global team with our customers at the center of everything we do – and they push us to ensure we take care of ourselves, each other, and our communities. Job Summary: This job delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC). It involves advising management on project-level issues, guiding junior engineers, operating with little supervision, and applying knowledge of technical best practices. Job Description: 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 Minimum Qualifications: 3+ years relevant experience and a Bachelor’s degree OR Any equivalent combination of education and experience. Additional Responsibilities & Preferred Qualifications: Build and maintain modern web applications using Next.js and React, delivering intuitive, performant user interfaces Develop full-featured product experiences with a component-driven architecture and strong attention to UX Integrate large language models into product workflows, including PRD parsing, requirement mapping, and AI-assisted code generation Design and iterate on LLM-powered pipelines that convert unstructured inputs (design specs, product documents) into structured, actionable outputs Build, train, and deploy ML models using Vertex AI and the broader GCP ecosystem Manage model lifecycle including training pipelines, evaluation, versioning, and continuous retraining feedback loops Deploy and operate model serving infrastructure on Kubernetes/GKE for reliable, low-latency predictions at scale Develop Python-based data pipelines to ingest, transform, and analyze large datasets in BigQuery Instrument data collection and monitoring to support model performance tracking and improvement Integrate ML model outputs and automation tooling natively into CI/CD pipelines to reduce build and test cycle times Collaborate with platform and DevOps teams to ensure scalable, production-grade infrastructure Participate in design reviews, technical planning, and agile ceremonies Proactively identify opportunities to improve developer tooling, automation, and platform capabilities Proficient in TypeScript with a strong grasp of type safety, modern ES patterns, and scalable front-to-back codebases Experience structuring test strategies and writing automated test suites in fast-moving product environments Demonstrated personal or professional investment in AI tooling and emerging technologies — side projects, experimentation with LLMs, or contributions to AI-driven developer productivity tools Experience identifying and implementing engineering efficiencies through automation, improved developer workflows, or reduced toil Familiarity with AI code generation tools and incorporating them responsibly into day-to-day development Subsidiary: PayPal Travel Percent: 0