Software Engineer II, Risk Engineering (Backend) at Flex in Remote

Summary: Flex is a growth-stage FinTech company based in NYC, focused on creating the best rent payment experience. The Software Engineer II will join the Risk Engineering team to implement platforms and APIs aimed at mitigating credit and fraud risks while enhancing app accessibility for customers. Responsibilities: - Build decision platform / machine learning solutions to respond to/mitigate business risks in Flex - Design and develop 24/7 high-scale APIs and distributed systems - Work closely with product, design, and engineering peers to launch new features across our web and mobile platforms Required Qualifications: - 4+ years of professional software development experience - 3+ years of hands-on experience with Java - 1+ years of experience with React.js or React Native - 1+ years of experience with TypeScript - Having experience building high-quality mobile and web UIs to specifications is a must to have - Proficient in Java frameworks and tools used at Flex, including Spring (core/web/boot), Gradle, JUnit, and JVM (memory/performance tuning, GC) - Experience with Service-Oriented Architecture, REST APIs, Message Queues, and scalable architectures - Experience with architectures and tools in React Native and React ecosystems (Hooks, Components, Context, Redux) - Experience with AWS (EKS, Aurora RDS, Elasticache, DynamoDB) and containerization tools Preferred Qualifications: - Experience working in a risk engineering team and with decision platform architecture or risk/fraud detection systems - Proficient in CI/CD systems (preferably GitHub Actions), git, and automation - Skilled in observability and monitoring tools, such as DataDog, to ensure high availability - Experienced with big data platforms and tooling, including Snowflake - Proficient in Infrastructure as Code, using tools like CDK and Terraform - Skilled at elevating team standards through best practices, and mentoring junior engineers - Excellent written and verbal communicator, with experience in cross-functional collaboration Required Skills: Java, AWS, Java Spring Boot Important Skills: React.js, TypeScript, Service-Oriented Architecture, REST APIs, CI/CD 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