Staff Software Engineer, Backend

November 12

🏄 California – Remote

Although this job is listed in California, this company may be open to hiring remote in other states.

🗽 New York – Remote

Although this job is listed in New York, this company may be open to hiring remote in other states.

💵 $199k - $262k / year

⏰ Full Time

🔴 Lead

🔙 Backend Engineer

🦅 H1B Visa Sponsor

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Flex

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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.

201 - 500 employees

Founded 2019

💳 Fintech

🏠 Real Estate

👥 B2C

📋 Description

• Design, build, and scale backend services and APIs that power Flex’s consumer apps, partner integrations, and core platforms. • Provide technical leadership and guidance on system architecture, long-term vision, and team best practices. • Lead the delivery of highly impactful products end-to-end, from requirements gathering to rollout, with high quality and timeliness. • Work closely with product, design, and cross-functional teams to translate requirements into robust technical solutions. • Build robust, fault-tolerant systems with multiple external dependencies in distributed environments. • Drive adoption of best practices across the engineering org, including testing, observability, automation, and CI/CD. • Mentor and support engineers on the team, raising the technical bar and fostering growth. • Operate services in production with high availability, leveraging monitoring and observability tools. • Contribute to evolving Flex’s service-oriented architecture, REST APIs, message queues, and scalable system design. • Balance hands-on execution with architectural decision-making, ensuring velocity and long-term maintainability.

🎯 Requirements

• 6–8+ years of professional software engineering experience, with a focus on backend development. • 4+ years of hands-on Java experience (Spring core/web/boot, Gradle, JUnit, JVM tuning & performance). • Strong computer science fundamentals and proven experience designing scalable, distributed systems. • Experience leading the delivery of multiple high-impact projects end-to-end. • Skilled at working with both technical and non-technical stakeholders, aligning on scope and delivery. • Ability to write high-quality, testable, maintainable, and secure code. • Hands-on experience with AWS (EKS, Aurora RDS, Elasticache, DynamoDB), containerization (Docker/Kubernetes), and relational + NoSQL databases (MySQL, PostgreSQL, DynamoDB). • Proficient with CI/CD pipelines (GitHub Actions preferred), git, and build automation. • Familiar with observability and monitoring tools (e.g., DataDog) for maintaining service availability. • Excellent communicator, comfortable collaborating in globally distributed teams. • Track record of mentoring engineers and raising team standards through best practices. • Bonus: Experience in FinTech and familiarity with major payment rails; experience with big data platforms (e.g., Snowflake); Infrastructure as Code (CDK/Terraform).

🏖️ Benefits

• Competitive pay • 100% company-paid medical, dental, and vision • 401(k) + company equity • Unlimited paid time off + 13 company paid holidays • Parental leave • Flex Cares Program • Free Flex subscription