Senior Software Engineer (React / React Native)

• As a Senior Frontend Engineer on the Personal Loans team, you will own the borrower-facing experiences that drive Prosper’s core business — from rate check through funding
• Using modern web and mobile technologies, you will build and maintain the applications that guide borrowers through one of the most important financial decisions they’ll make
• Your work will directly impact conversion, borrower satisfaction, and Prosper’s top-line growth
• We are investing heavily in AI across our engineering organization — from AI-assisted development workflows to intelligent borrower experiences
• You’ll be joining a team that actively embraces AI tools to accelerate delivery, improve code quality, and explore new ways to make the borrower journey smarter and more personalized
• Collaborate within a cross-functional team that includes product, design, backend engineering, and quality engineers to deliver seamless borrower experiences across web and mobile
• Own projects end to end — from technical design and architecture through launch, iteration, and measurement — driving outcomes that move the business forward
• Build and evolve our React and React Native applications within a pnpm/Turborepo monorepo, shipping features that work beautifully on every platform
• Design and maintain shared component libraries and cross-platform modules that accelerate development across multiple product teams
• Partner with backend and platform engineering teams to integrate with GraphQL and RESTful APIs in a performant, reliable, and secure manner
• Identify and drive improvements in performance, testing, accessibility, and developer experience that make the entire team more effective
• Uphold high standards of code quality and user experience while iterating rapidly in a regulated environment
• Leverage AI-powered tools (coding assistants, automated testing, code review) to amplify your productivity and help establish best practices for AI-assisted development across the team
• Contribute to a strong, inclusive engineering culture by mentoring peers, championing best practices, and participating in thoughtful code reviews

Benefits

• Take-what-you-need (paid) vacation for salaried employees
• 20 days of PTO and 7 paid holidays/year for hourly employees
• Stock options
• 401K retirement savings plan with generous matching
• Comprehensive health, dental and vision insurance plans, with options specific to your own health coverage needs
• Prosper Fit - A monthly stipend to use for gym memberships, personal training sessions, yoga and exercise classes, or club sports/fitness fees
• Pre-tax commuter/parking assistance
• Snacks and beverage selections in our kitchen
• Monthly meet-and-greet happy hours
• Perkspot discount programs
• One Medical
• SF Location - Rooftop deck with ping-pong and foosball table- Familiarity with monorepos (pnpm, Turborepo), bundlers (Vite), and CI/CD pipelines to maintain a high-velocity development environment
• BS in EE/CS with 8+ years of experience or MS in EE/CS or other applicable disciplines with 6+ years of experience
• Active use of AI coding assistants (Cursor, Copilot) and a commitment to exploring new AI developments to enhance team productivity and solve product problems
• A deep focus on the “borrower behind the screen,” sweating the details to maintain trust in a domain where financial accuracy is paramount
• A sharp eye for UX/UI polish, ensuring high-stakes financial flows feel intuitive, professional, and reliable
• Excellence in cross-functional communication and a dedication to elevating the team through clear mentorship and knowledge sharing
• Hands-on experience with GraphQL (Apollo) and RESTful APIs to power high-performance applications
• Deep proficiency in React, React Native, and TypeScript, with the versatility to move seamlessly between web and mobile platforms if applicable
• Disciplined approach to automated testing using tools like Jest, Playwright, or Detox to ensure systems are meticulous and trustworthy
• A proactive, high-accountability approach to driving projects to completion and unblocking yourself to deliver outcomes, not just outputs
• Experience with Expo and mobile deployment workflows (App Store, Google Play)
• Familiarity with cross-platform styling systems (Tamagui, styled-components)
• Background in fintech, lending, or other regulated industries
• Experience with feature flagging, A/B testing, and data-driven product development
• Native mobile development experience (Swift/Kotlin)- Recruiter Call: A brief screening to discuss your experience and initial questions
• Technical Interview: Deeper dive into coding skills
• Team Interview: Meet team members for collaborative discussions, problem-solving, or technical exercises