Software Engineer

Flex is building the AI-native private bank for business owners, re-architecting the financial system for entrepreneurs. The Software Engineer II will help build product features that power financial services, focusing on systems that handle payments, credit, and other core products essential for business operations.

Responsibilities:

• Own the full lifecycle of medium-sized features and tasks across our product stack
• Build user-facing features, internal tools, APIs, and backend services
• Write clear, maintainable, and tested code that you'll be responsible for long-term
• Participate in code reviews and provide timely feedback to teammates
• Build features with the end product and user in mind, not just the code
• Reason carefully about how your work extends in service of larger product needs
• Build upon systems and features that others depend on
• Balance speed with reliability and compliance in a regulated environment
• Collaborate with other engineers and product team members to deliver high-impact work

Requirements:

• Have strong fundamentals in software development and ability to work effectively within established systems
• Product sense—you think about the user impact and business value of your work
• Ability to take responsibility for the maintenance and quality of what you build
• Ability to research and proactively solve problems, bring solutions to the table
• English proficiency
• A strong work ethic
• Experience with financial services, regulated industries, or handling sensitive data is a plus but not required