Staff Software Engineer, FinPlatform Backend

🕒 March 5

🏄 California, New York – Remote

🏄 California – Remote 🗽 New York – Remote

💵 $200k - $250k / year

⏰ Full Time

🔴 Lead

🔙 Backend Engineer

🦅 H1B Visa Sponsor

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Flex

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2019

💳 Fintech

🏠 Real Estate

👥 B2C

Fintech • Real Estate • B2C

Flex is a financial technology company that enables renters to split and schedule rent payments, pay move-in costs over time, and build credit through on-time rent reporting. It offers consumer-facing payment products (rent split, pay-over-time, and move-in loans) and partners with property owners and property-management systems to help properties collect on-time rent and retain residents. Flex operates via bank partnerships and regulated lending/servicing subsidiaries to provide loans and payment processing while emphasizing security and regulatory compliance.

📋 Description

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

🎯 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 the fault-tolerant and scalable distributed systems • Experience with AWS cloud services: ESC/EKS, Lambda, API Gateway, VPN, RDS etc • Infrastructure as code(AWS CLI, AWS CDK/Terraform) • Strong communication skills with the ability to understand and explain technical issues to a non-technical audience • Follow engineering best practices as well as propose new ones • Experience with finance reporting and reconciliation • Deep experience with writing complex query and data mining

🏖️ 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