Staff Software Engineer, FinPlatform Backend

Flex is a growth-stage, NYC headquartered FinTech company creating an innovative rent payment experience, enabling users to pay rent on a flexible schedule. They are seeking motivated individuals to help grow their mission of empowering renters.

Location: United States

Salary: $170,000–$250,000

Responsibilities

• Design, implement and maintain the Finance service and internal tooling, including financial reporting, reconciliation/audit process.
• Design and develop new APIs and functionalities to support large money movements across banking partners via different payment rails, such as ACH.
• Scale out core platform to support business growth while maintaining performance and reliability.
• Continuously improve daily operations with automation, tooling, design evolution, observability, etc.
• Work closely with product, analytics, finance, and engineering teams to launch new financial features.

Requirements

• 6+ years of experience in software development or a related field.
• Experience in technical leadership, guiding engineering teams through complex projects.
• Experience with Java, Python, Golang, or TypeScript/Node.js.
• Strong experience with relational SQL and NoSQL databases, such as MySQL/PostgreSQL/DynamoDB.
• Experience in designing and developing fault-tolerant and scalable distributed systems.
• Experience with AWS cloud services: ECS/EKS, Lambda, API Gateway, VPN, RDS, etc.
• Infrastructure as code (AWS CLI, AWS CDK/Terraform).
• Strong communication skills to explain technical issues to non-technical audiences.
• Experience with finance reporting and reconciliation.
• Deep experience with writing complex queries and data mining.

Benefits

• Competitive medical, dental, and vision from Day 1.
• Company equity.
• 401(k) plan with company match.
• Unlimited paid time off + 13 company paid holidays.
• Parental leave.
• Flex Cares Program.
• Free Flex subscription.