Flex

Flex designs, manufactures, and supplies electronics products for the industrial sector.

10001+ employees

Electronics

Public Company

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Electronics Product Design Manufacturing

Remote-First Company

This company operates with a remote-first culture, allowing team members to work from anywhere. Team members are distributed across the U.S. and Canada.

Open Positions6

We have employees located throughout the USAustraliaCanada and South AmericaFull-TimeFinTechPosted

Staff Software Engineer, Partner Integrations

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

AWSJavaSpring Boot+2 more

Showing 1 of 6 positions

About Flex

Flex is a growth-stage FinTech company transforming the rent payment experience. We empower renters to pay throughout the month, aligning with their finances. Our mission is to provide flexibility for the most significant recurring expense. We also offer a finance 'super app' for mid-market businesses. This platform integrates private credit, business tools, and payment solutions. We have quadrupled revenue and grew annualized total payments volume from $1 billion to $3 billion in the past year. We also secured $105 million in equity funding, valuing us near $500 million.

How We Work

We foster a culture of radical transparency, integrity, and individual growth. Our remote-first philosophy empowers you with significant independence. You will take ownership of business challenges and execute innovative solutions. We embrace diversity across our teams, located throughout the U.S., Australia, Canada, and South America. We are also an AI-first engineering organization, seeking domain experts who leverage AI-augmented workflows for world-class reliability.

Engineering at Flex

Our engineering teams build and scale robust backend services and APIs across consumer products, partner integrations, and critical risk management platforms. You will work on designing, implementing, and maintaining core services like Identity, Auth, Payment, Financial, and Risk. We optimize for performance, resilience, and cost. We also use Terraform to automate infrastructure provisioning on AWS and GCP. Expect to improve developer workflows by creating self-service tools and optimizing CI/CD pipelines. Our stack involves Java, Python, TypeScript, Golang, relational and NoSQL databases like MySQL and DynamoDB. We also utilize GitHub Actions for CI/CD and Datadog for monitoring.

Why Join Us

Influence key infrastructure and architecture decisions in an AI-first organization.
Take absolute ownership of business challenges and solution execution.
Contribute to a product that provides financial flexibility to millions of renters.
Work with a diverse, globally distributed team committed to transparency and growth.
Shape the future of FinTech in a rapidly scaling company backed by significant funding.

Benefits & Perks

Competitive compensation with market-based adjustments.
Company equity for all full-time U.S. employees.
401(k) plan with company match.
Unlimited paid time off plus 13 company holidays.
Comprehensive medical, dental, and vision coverage.
Generous parental leave.
Flex Cares Program: non-profit company match and pet adoption coverage.
Free Flex subscription.
Relocation assistance for hybrid roles in NYC, SF, or Salt Lake City.