Staff Software Engineer, Risk Engineering

Flex; United States; Remote; USD 199,000 - 213,000; Full time

Job summary

Join a forward-thinking FinTech company as a Staff Software Engineer, where you'll spearhead the development of innovative risk management solutions. This role offers the chance to work on cutting-edge projects that enhance user experience while safeguarding against fraud. You'll design high-scale APIs and collaborate with a dynamic team to launch impactful features across web and mobile platforms. If you're passionate about creating flexible solutions for renters and have a strong background in risk engineering and software development, this opportunity is perfect for you. Be part of a mission-driven team that's changing the way people manage their most significant recurring expense.

Benefits

100% company-paid medical, dental, and vision

401(k) + company equity

Unlimited paid time off

13 company paid holidays

Parental leave

Flex Cares Program

Free Flex subscription

Qualifications

• 6+ years of professional software development experience.
• Must have experience in risk engineering and decision platform architecture.
• Proficient in Java frameworks and AWS services.

Responsibilities

• Build machine learning solutions to mitigate business risks.
• Design and develop high-scale APIs and distributed systems.
• Collaborate with product and engineering teams to launch new features.

Skills

Java

Risk Engineering

Decision Platform Architecture

Fraud Detection

Service-Oriented Architecture

Cross-Functional Collaboration

Education

Bachelor's Degree in Computer Science

Master's Degree in Software Engineering

Tools

AWS

Java Spring Boot

Gradle

JUnit

DataDog

Snowflake

Terraform

GitHub Actions

Job description

Staff Software Engineer, Risk Engineering

Remote (U.S.)

Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. It’s hard to believe that it’s 2025 and paying rent on time is expensive, inflexible, and difficult. We’re here to change that! Flex enables our users to pay rent throughout the month on a schedule that better fits their finances and budget. Our mission is to empower as many renters as possible with flexibility over their most significant recurring expense. After deliberately keeping a stealth profile as we built up unprecedented investor support and an enthusiastic user base, we are looking for motivated individuals to help us keep our mission growing. Will you be a part of the team?

About the role

Flex is looking for a Staff Software Engineer to join our Risk Platform team. This role involves spearheading the implementation of platforms and APIs crucial for supporting business features within the risk management domain.

The Risk Platform team is dedicated to mitigating both credit risk and fraud risk. Our mission is to enhance Flex app accessibility for customers while safeguarding against improper use and unauthorized access by identifying and preventing misuse across all core product areas.

Following are some projects/systems in Risk Platform you will have opportunities to work with:

• Core decision platform which is an end-to-end solution for the enterprise decision management lifecycle, including business rule management, analytics, process management, and ML/AI.
• Event data stream ingestion which supports near real-time fraud rules setup.
• Advanced a/b testing and experimentation capabilities for our customers so they can leverage greedy algorithms and fight fraud.

What you’ll do

• 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
  
  

Qualifications

Minimum Qualifications

• Must-have: Experience working in a risk engineering team, specializing in decision platform architecture or risk/credit/fraud detection systems.
• 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 Qualifications

• 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.

The salary compensation range for this role will be commensurate with the candidate's experience and Flex's internal leveling guidelines and benchmarks.

For working locations in NY/NJ/CA, the base salary pay range will be $221,000-$237,000For all other states, the base salary pay range will be $199,000-$213,000

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.

We offer many employee benefits. For full time, U.S. based employees we offer:

• Competitive pay
• 100% company-paid medical, dental, and vision
• 401(k) + company equity
• Unlimited paid time off with a PTO minimum + 13 company paid holidays
• Parental leave
• Flex Cares Program: Non-profit company match + pet adoption coverage
• Free Flex subscription

For full time non-US employees, we offer

• Competitive Pay
• Company Equity
• Unlimited PTO

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