Senior Software Engineer – Risk Engineering

Flex

full-time

Posted on: 9/27/2025

Location Type: Remote

Location: Remote • California, New Jersey, New York • 🇺🇸 United States

✨ AI Apply

💰 $177,000 - $213,000 per year

Senior

AWSDistributed SystemsDynamoDBGradleJavaJUnitReactReact NativeReduxSpringSpring BootSpringBootTerraformTypeScript

About the role

Build decision platform and machine learning solutions to respond to and mitigate business risks in Flex
Design and develop 24/7 high-scale APIs and distributed systems (Java/Spring Boot) on AWS
Implement event data stream ingestion supporting near real-time fraud rules
Develop advanced A/B testing and experimentation capabilities to fight fraud
Work closely with product, design, and engineering peers to launch new features across web and mobile
Maintain and tune JVM performance, CI/CD, observability, and scalable microservice architectures

6+ years of professional software development experience
5+ years of hands-on experience with Java
2+ years of experience with React or React Native
2+ years of experience with TypeScript
Experience building high-quality mobile and web UIs to specifications
Proficient in Java frameworks and tools: Spring (core/web/boot), Gradle, JUnit, JVM (memory/performance tuning, GC)
Experience with microservice architecture, RESTful APIs, Message Queues, and scalable architectures
Experience with React Native and React ecosystems (Hooks, Components, Context, Redux)
Experience with AWS (EKS, Aurora RDS, ElastiCache, DynamoDB) and containerization tools
Preferred: experience in risk engineering, decision/rule engines, or fraud/transaction risk systems
Preferred: proficient in CI/CD (preferably GitHub Actions), git, and automation
Preferred: skilled in observability/monitoring tools (e.g., DataDog)
Preferred: experience with big data platforms and tooling (e.g., Snowflake)
Preferred: proficient in Infrastructure as Code (CDK, Terraform)
Preferred: experience mentoring junior engineers and elevating team standards
Excellent written and verbal communication; experience in cross-functional collaboration

Benefits

Tip: use these terms in your resume and cover letter to boost ATS matches.

JavaSpring BootReactReact NativeTypeScriptJVM tuningMicroservice architectureRESTful APIsCI/CDEvent data stream ingestion

communicationcross-functional collaborationmentoringteam standards elevation