Software Engineer

Summary

Flex is building the AI-native private bank for business owners, re-architecting the entire financial system for entrepreneurs. They are seeking a Software Engineer II to help build product features that power financial services, focusing on systems that handle payments, credit, and other core products.

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

Skills

• 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

Qualifications

Must Haves

• 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

Nice to Haves

• Experience with financial services, regulated industries, or handling sensitive data is a plus but not required

Benefits

• Meaningful equity if you help build something big
• Founder-level exposure — Direct access to leadership, customers, and investors