Software Engineer II
Flex is building a finance super app for premium business owners — reimagining every single aspect of the financial workflow and financial services for any entrepreneur. The company has grown revenue 25x+ since publicly launching in September 2023 and is on track to achieve profitability by late 2025. Flex is focused on mid-market businesses ($3 - $100M revenue) that are largely overlooked by existing fintech solutions and reliant on slow and outdated regional banks. We are targeting a ~$1T revenue opportunity that is largely up for grabs.
Flex is a fully remote company and this role can be performed from anywhere.
🕺About the Role
We're looking for a Software Engineer II to help build product features that power financial services. You'll work on systems that handle payments, credit, and other core products that our customers rely on daily to drive business operations.
- 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
- 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
- Experience with financial services, regulated industries, or handling sensitive data is a plus but not required
- Ability to research and proactively solve problems, bring solutions to the table
- English proficiency
- A strong work ethic
Why Join Us
Flex is growing quickly — you’ll help shape the direction of a product and company with real momentum.
We’re well-capitalized with strong backing and a clear long-term vision.
You’ll work with a sharp, driven team that values autonomy, clarity, and quality.
Join ambitious builders who care deeply about winning together — and having fun while doing it.
Annual team on-sites. From Bogota to Mexico City, the entire Flex team gets together once a year to align and build camaraderie.
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