Flex · 12 hours ago
Software Engineer II, Risk Engineering (Backend)
United States
Full-time
Remote
Mid Level
$140K/yr - $175K/yr
4+ years expFlex is a growth-stage FinTech company headquartered in NYC that focuses on creating a better rent payment experience. They are looking for a Software Engineer II to join their Risk Engineering team, where the primary responsibility will be to implement platforms and APIs to support business features within the risk management domain.
AppsBillingFinancial ServicesFinTechSoftware
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. The tech stack will be on AWS. Java would be the language for the existing code base. Java Spring Boot will be the framework
Work closely with product, design, and engineering peers to launch new features across our web and mobile platforms
Qualification
Required
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
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
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
Competitive compensation + company equity
Unlimited PTO
Company
Flex
Flex enables people to pay rent bills on a schedule that fits their personal finances.
201-500 employees
H1B Sponsorship
Flex has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
Funding
Current Stage
Growth StageTotal Funding
unknown2025-03-31Series A
2019-11-01Seed
2019-07-24Pre Seed
Leadership Team
Shragie Lichtenstein
Co-Founder & CEO
Michael Jannain
Staff Software Engineer
Recent News
Flexible Finance, Inc.
2025-10-14
Flexible Finance, Inc.
2025-10-09
2023-12-15
Company data provided by crunchbase