Sr Software Engineer

PayPal PayPal · Fintech · Singapore · Software Engineering

This role is for a Sr. Software Engineer on the RegTech team at PayPal, focusing on integrating AI agents into the software development lifecycle. The engineer will design and orchestrate AI-Agent workflows, build guardrails around AI-generated code, and integrate these AI agents with existing development tools and pipelines to ensure scalable, secure, and observable processes.

What you'd actually do

  1. 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.
  2. Advises immediate management on project-level issues
  3. Guides junior engineers
  4. Operates with little day-to-day supervision, making technical decisions based on knowledge of internal conventions and industry best practices
  5. Applies knowledge of technical best practices in making decisions

Skills

Required

  • 5+ years of professional experience programming modern web applications in JavaScript, Typescript, CSS, and HTML
  • 5+ years of professional experience on on NodeJS and any web framework such as React
  • Experience in system design for high traffic volume applications
  • Strong understanding of developing APIs and micro-services architecture
  • Strong skills in writing testable code and high-quality tests
  • Experience in optimizing web applications for speed and performance, including knowledge of techniques like lazy loading and code splitting.
  • Familiarity with security considerations for web applications, including knowledge of common vulnerabilities (like XSS, CSRF) and how to mitigate them
  • Design & Orchestrate AI-Agent Workflows: Proven experience designing and implementing end-to-end workflows that integrate AI coding into the software development lifecycle, including task decomposition, prompt strategy, context management, tool invocation, and automated validation loops.
  • Engineering for Reliability & Quality Control: Ability to build guardrails around AI-generated code through automated testing, static analysis, security scanning, human-in-the-loop review, and measurable evaluation frameworks (accuracy, regression risk, performance impact).
  • Systems Integration & Scalability: Strong experience integrating AI agents with existing CI/CD pipelines, version control systems, issue trackers, and developer tooling, ensuring scalable, secure, and observable agent-driven development processes in production environments.
  • Familiarity with developing efficient queries and designing schemas for relational databases
  • Experience working in an Agile team, familiarity with Agile best practices, and ability to manage individual task deliverables
  • Experience in mentoring junior developers or leading teams

Nice to have

  • Awareness of emerging trends and technologies in web development (like serverless architecture, Module federation) to keep the technology stack modern
  • Experience in Android and iOS development, mobile SDK development
  • Familiarity with backend for frontend architecture
  • Experience in developing platform level features, such as configuration management, service discovery and routing, feature switch, A/B testing, etc.
  • Experience in RegTech or FinTech related domains

What the JD emphasized

  • Proven experience designing and implementing end-to-end workflows that integrate AI coding into the software development lifecycle
  • Ability to build guardrails around AI-generated code through automated testing, static analysis, security scanning, human-in-the-loop review, and measurable evaluation frameworks
  • Strong experience integrating AI agents with existing CI/CD pipelines, version control systems, issue trackers, and developer tooling

Other signals

  • AI-Agent Workflows
  • guardrails around AI-generated code
  • integrating AI agents with existing CI/CD pipelines