Senior Frontend Platform Engineer

About Upstart

Upstart is the leading AI lending marketplace partnering with banks and credit unions to expand access to affordable credit. By leveraging Upstart's AI marketplace, Upstart-powered banks and credit unions can have higher approval rates and lower loss rates across races, ages, and genders, while simultaneously delivering the exceptional digital-first lending experience their customers demand. More than 80% of borrowers are approved instantly, with zero documentation to upload.

Upstart is a digital-first company, which means that most Upstarters live and work anywhere in the United States. However, we also have offices in San Mateo, California; Columbus, Ohio; and Austin, Texas.

Most Upstarters join us because they connect with our mission of enabling access to effortless credit based on true risk. If you are energized by the impact you can make at Upstart, we’d love to hear from you!

The Team: 

The Frontend Platform team champions frontend excellence at Upstart by empowering teams to engineer quality user experiences. We  build tools and services that are used internally by the engineering, design and product teams.

We are looking for an experienced Senior Frontend Platform Engineer to help shape the future of our engineering platform and empower product teams to deliver exceptional user experiences with speed, quality, and consistency. In this role, you will own and evolve the core frontend platform, frameworks, and developer tooling that power our web and mobile applications. You’ll collaborate closely with product engineers, infrastructure teams, and design systems partners to drive technical strategy, set standards, and solve cross-cutting challenges at scale.

How you’ll make an impact

• Platform Development: Design, build, and maintain the core frontend platform and tooling used across product engineering teams.
• Developer Experience: Lead efforts to improve build pipelines, CI/CD workflows, testing frameworks, and local dev environments.
• Framework & Architecture: Guide adoption of technologies (e.g., React, TypeScript, React Native) and define architectural patterns that ensure scalability, reliability, and performance.
• Cross-Functional Collaboration: Work with design systems, backend, and infra teams to align frontend initiatives with company-wide engineering strategy.

Minimum Qualifications 

• 6-8 years of professional frontend engineering experience, with deep expertise in React and TypeScript; experience with mobile (React Native) is a plus.
• Strong knowledge of web performance, testing strategies and modern frontend architectures. Solid understanding of observability and monitoring for frontend systems (eg: Sentry, Datadog)
• Hands-on experience with modern build systems (eg: Turbo, Webpack, Vite), skilled in CI/CD tooling (eg: GitHub Actions, CircleCI) and automation of release pipelines.

Preferred Qualifications

• You have experience  building frameworks, libraries, or tooling that scaled across multiple teams or applications.
• Ability to partner effectively with engineers, designers, and PMs; excellent communication skills.
• Knowledge of microfrontend architecture and familiarity with different content rendering strategies.

 

Position location This role is available in the following locations: Remote-United States 

Time zone requirements The team operates on the East/West coast time zones. 

Travel requirements As a digital first company, the majority of your work can be accomplished remotely. The majority of our employees can live and work anywhere in the U.S but are encouraged to to still spend high quality time in-person collaborating via regular onsites. The in-person sessions’ cadence varies depending on the team and role; most teams meet once or twice per quarter for 2-4 consecutive days at a time.

 

What you'll love: 

• Competitive Compensation (base + bonus & equity)
• Comprehensive medical, dental, and vision coverage with Health Savings Account contributions from Upstart 
• 401(k) with 100% company match up to $4,500 and immediate vesting and after-tax savings
• Employee Stock Purchase Plan (ESPP)
• Life and disability insurance
• Generous holiday, vacation, sick and safety leave  
• Supportive parental, family care, and military leave programs
• Annual wellness, technology & ergonomic reimburseme