Staff Software Engineer, Partner Integrations

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🔥 0 minutes ago

🏄 California, New York – Remote

🏄 California – Remote 🗽 New York – Remote

💵 $200k - $250k / year

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

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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 payment integrations platform, including partner APIs, SDKs, and embedded web experiences • Help shape and drive the technical roadmap for the Partner Engineering team • Design and develop scalable APIs and integrations to support money movements across our banking partners via payment rails such as ACH • Work cross-functionally with Engineering, Product, Design, Infrastructure, Sales, Partner, and Customer Success to deliver high-impact features • Scale our integrations platform to support business growth while maintaining performance and reliability • Continuously improve daily operations through automation, tooling, design evolution, and observability • Mentor engineers and elevate team standards through best practices, code reviews, and technical guidance

🎯 Requirements

• Minimum 6 years of experience in software engineering • Minimum 4 years of experience with Java; proficient in Spring (core/web/boot), Gradle, JUnit, and JVM tuning • Experience with Service-Oriented Architecture, REST APIs, message queues, and scalable distributed systems • Experience with AWS (EKS, Aurora RDS, Elasticache, DynamoDB) and containerization • Experience leading delivery of multiple high-impact products end to end, on time with a high quality bar • Ability to work on a globally-distributed team with a high degree of ownership • Experience aligning technical and non-technical stakeholders on scope and delivery • Experience in FinTech and familiarity with major payment rails • Ability to drive quality and consistency across your team without compromising velocity.

🏖️ Benefits

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