Senior Fullstack Software Engineer, Flex
Risk Engineering
$146-210k
Salary dependent on location. Plus company equity
More information about location
2-3 days a week in office
Flexible rent payment application
Open for applications
Flexible rent payment application
501-1000 employees
Open for applications
$146-210k
Salary dependent on location. Plus company equity
More information about location
2-3 days a week in office
501-1000 employees
Company mission
To help people pay for the things that matter most.
Role
Who you are
- Must-have: Experience working in a risk engineering team, specializing in rules engine architecture or risk/credit/fraud systems
- 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
- 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
Desirable
- 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 collabo
What the job involves
- Flex is looking for a Senior Software Engineer to join our Risk Engineering team. This role involves spearheading the implementation of platforms and APIs crucial for supporting business features within the risk management domain
- The Risk Engineering team is dedicated to mitigating both credit risk, fraud risk, and risk for launching new products. 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
- 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
- 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
Our take
Many people struggle to pay their rent every month, with a variety of bills hitting their bank accounts simultaneously. Whilst many of these people earn enough money to cover their bills, the inflexible nature of monthly bills can make the all-in-one payment a harder obstacle.
Flex provides a mobile application for the flexible payment of rent, allowing users to pay their landlords through flexible payment plans, reschedule payments when necessary, and protect their funds through Overdraft Protection. The company achieves this by partnering with estate agents and paying their resident's bills upfront, taking on the challenges that landlords would normally have due to late payments.
Flex has experienced extremely rapid growth since its founding which has caused some issues, as it struggled to keep up with the surge in new customers. Having made improvements to its product and scaled its customer service team, it is set to continue providing a service that has come to be highly valued by both tenants and landlords.
Freddie
Company Specialist at Welcome to the Jungle
Insights
10% employee growth in 12 months
Company
Funding (last 2 of 5 rounds)
Feb 2022
$160m
SERIES C
Apr 2021
$46.6m
SERIES B
Total funding: $225.1m
Company benefits
- Medical, Dental & Vision: Your healthcare will be available from Day 1— giving you immediate peace of mind — with best in class coverage and options.
- Parental Leave: Step away with paid time off to focus on family and life’s newest chapter.
- NYC HQ: Collaborate in our lively New York headquarters, with new office space on the way!
- 401(k) Retirement Savings: Plan ahead with our 401(k) program to grow your future. And starting early 2026, employees will be eligible for a company match!
- Flex Giving: Flex Giving empowers employees to support local nonprofits advancing housing stability in the communities we call home.
- Employee Assistance Fund: Confidential financial support to teammates facing unexpected hardships or emergencies.
- Hybrid Work Policy: Work flexibly from home, with in-person collaboration and events that matter.
- Unlimited PTO + Holidays: Take the time you need— whether that’s a vacation, recharge, or simply a long weekend
- Free Flex Subscription: As a Flex employee, you'll have full access to our services without charge.
- GrubHub Credit: Enjoy meal credits while in the office, so you’re fueled for the workday ahead.
Company HQ
Midtown Manhattan, New York, NY
Leadership
Shragie Lichtenstein
(Co-Founder & CEO)Prior to co-founding Flex in 2019, Shragie co-founded Boundless Reality. They graduated from Yeshiva University in 2015 with a Bachelor's Degree in Finance.
YeTong Shao
(Co-Founder)Prior to co-founding Flex in 2019, YeTong co-founded Boundless Reality alongside Shragie. They graduated from the University of Chicago with a Bachelor's Degree in Mathematic & Economics.
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