Apply on Employer Site

Flex · 1 day ago

Senior Software Engineer, Risk Engineering (Backend)

United States

Full-time

Remote

Senior Level

$197K/yr - $213K/yr

6+ years exp

Flex is a growth-stage FinTech company headquartered in NYC, focused on transforming the rent payment experience. They are seeking a Senior Software Engineer to join their Risk Platform team, where the main responsibilities include developing platforms and APIs to manage credit and fraud risks while enhancing app accessibility.

AppsBillingFinancial ServicesFinTechSoftware

H1B Sponsor Likely

Responsibilities

Build rules engine / 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

Risk engineering experienceJava programmingAWS proficiencyRules engine architectureService-Oriented ArchitectureCI/CD systemsInfrastructure as CodeSoft skills

Required

Must-have: Experience working in a risk engineering team, specializing in rules engine architecture or risk/credit/fraud systems

Must-have: Experience implementing risk policies in a rules engine or production services

6+ years of professional software development experience

5+ years of hands-on Java experience

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 AWS (EKS, Aurora RDS, Elasticache, DynamoDB) and containerization tools

Preferred

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

Glassdoor3.9

Flex enables people to pay rent bills on a schedule that fits their personal finances.

Founded in 2019

New York, New York, USA

201-500 employees

https://getflex.com

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)