Software Engineer II, Frontend, Mobile and Web - Remote

Overview

Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. It’s hard to believe that it’s 2025 and paying rent on time is expensive, inflexible, and difficult. We’re here to change that! Flex enables our users to pay rent throughout the month on a schedule that better fits their finances and budget. Our mission is to empower as many renters as possible with flexibility over their most significant recurring expense. After deliberately keeping a stealth profile as we built up unprecedented investor support and an enthusiastic user base, we are looking for motivated individuals to help us keep our mission growing. Will you be a part of the team?

In Short

• Work closely with product, design, and engineering peers to launch new features across our web and mobile platforms
• Design, test, and scale new features to solve complex problems in a simple way for our customers
• Be hands-on and execute work as an individual, while also building products that allow for flexibility as we evolve our product offerings
• The ideal candidate will be comfortable leading scoping, design, & implementation for mobile/web features

Requirements

• A minimum of 2 years experience in React.js or React Native is required for this position.
• Strong computer science fundamentals
• A strong focus on building high quality mobile and web UIs to specifications
• Experience with various architectures and tools within the React Native and React ecosystems (Hooks, Components, Context, Redux).
• Experience delivering products at a large scale without performance bottlenecks (hundreds of thousands to millions of users)
• Write maintainable code that uses industry best practices to improve the entire software development life cycle (unit testing, linting, automation).
• Ability to write well-documented and testable TypeScript code
• Familiarity with REST API’s and tooling across web and mobile architectures
• Collaborating with engineers across multiple teams to improve code quality

Benefits

• Competitive medical, dental, and vision available from Day 1
• Company equity
• 401(k) plan with company match (our company match kicks off at the beginning of 2026)
• Unlimited paid time off + 13 company paid holidays
• Parental leave
• Flex Cares Program
• Free Flex subscription