Flex - Staff Software Engineer, Partner Integrations
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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 • Proficient in CI/CD systems (preferably GitHub Actions) and automation • Skilled in observability and monitoring tools such as DataDog • Experienced with big data platforms including Snowflake • Proficient in Infrastructure as Code (CDK, Terraform) • Excellent written and verbal communicator with cross-functional collaboration experience
Responsibilities
• 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
Benefits
• Flex takes a market-based approach to pay, and compensation may vary depending on your primary work location. Work locations are categorized into one of three tiers based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be commensurate with their experience, qualifications, and Flex’s internal leveling guidelines and benchmarks. • Tier 1 (NYC/Bay Area, Los Angeles, Seattle) • $200,000—$250,000 USD • Tier 2 (Austin, Washington D.C. Philadelphia, San Diego, Chicago, Atlanta) • $180,000—$225,000 USD • Tier 3 (Salt Lake City, all other USA cities) • $170,000—$212,500 USD • Life at Flex • Life at Flex • We understand that it takes a diverse team of highly intelligent, curious, determined, empathetic, and self aware people to grow a successful company. Our HQ is located in New York City, but we have employees located throughout the US, Australia, Canada and South America. We are growing quickly, but deliberately, with a focus on building an inclusive culture. Our dynamic team has incredible perspectives to share, just as we know you do, and we take great pride in being an equal opportunity workplace. • Roles posted in New York, San Francisco, and Salt Lake City are hybrid positions with on-site expectations of 2-3 days per week in our local offices. For candidates outside of these areas, you may be eligible for our relocation assistance program. • Competitive medical, dental, and vision • 401(k) plan with company match • Unlimited paid time off + 13 company paid holidays • Free Flex subscription • For full-time non-U.S. employees, we offer: • Competitive compensation + company equity
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