Software Engineer, Flex

Fullstack, Risk Engineering - 2025 New Grad

$125-153k

+ Company equity. Salary may vary by location.

SQL

React

AWS

TypeScript

Redux

React Native

Java

Terraform

Spring

Snowflake

Git

REST API

Datadog

Entry and Junior level

Remote from US

Flexible rent payment application

Be an early applicant

Flexible rent payment application

501-1000 employees

B2BPaymentsRentingFinancial ServicesMobile

Be an early applicant

$125-153k

+ Company equity. Salary may vary by location.

SQL

React

AWS

TypeScript

Redux

React Native

Java

Terraform

Spring

Snowflake

Git

REST API

Datadog

Entry and Junior level

Remote from US

501-1000 employees

B2BPaymentsRentingFinancial ServicesMobile

Company mission

Flex's mission is to empower as many renters as possible with flexibility over their most significant recurring expense.

Job

Company

Role

Who you are

This role is ideal for engineers who enjoy working across the stack, are eager to learn, and want to see their work directly impact product safety and customer access
Bachelor’s degree in Computer Science or a related field (or equivalent practical experience)
Strong foundational knowledge of Java and object-oriented programming principles
Experience with React or React Native, and proficiency in TypeScript
Understanding of data structures, algorithms, and basic system design concepts
Familiarity with REST APIs and service-oriented architectures
Experience working with relational databases and writing SQL queries
Familiarity with Git or other version control systems
Ability to communicate clearly, collaborate effectively, and ask questions
Curiosity about how systems work and a desire to learn continuously

Desirable

Exposure to risk engineering, fraud detection, or decision platforms (through coursework, internships, or prior roles)
Experience building high-quality mobile and web UIs to product and design specifications
Experience with the React Native and React ecosystems, including Hooks, Components, Context, and Redux
Experience with Spring Boot or backend service development
Basic knowledge of cloud platforms, particularly AWS
Familiarity with CI/CD pipelines (e.g., GitHub Actions)
Exposure to observability and monitoring tools such as DataDog
Experience or coursework involving data platforms (e.g., Snowflake)
Familiarity with Infrastructure as Code concepts (e.g., CDK, Terraform)
Strong written and verbal communication skills

What the job involves

Flex is looking for a Software Engineer I to join our Risk Engineering team
In this role, you will contribute to the development of services and APIs that support Flex’s risk decisioning, fraud prevention, and credit access systems
You’ll work closely with experienced engineers and technical leaders to deliver reliable, scalable features across both backend services and user-facing applications
Build and maintain backend services and APIs in Java (Spring Boot) that support real-time risk decisioning and fraud prevention
Develop user-facing features using TypeScript with React and/or React Native for risk-related flows across web and mobile
Collaborate with product, design, and engineering partners to deliver end-to-end features from requirements to production
Write clean, well-tested, and maintainable code, participating in code reviews and learning best practices
Help monitor, debug, and support production systems, gaining experience with distributed systems and operational excellence

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

Top investors

10% employee growth in 12 months

Glassdoor (3.1)

Company

Funding (last 2 of 5 rounds)

Feb 2022

$160m

SERIES C

Apr 2021

$46.6m

SERIES B

Total funding: $225.1m

Company benefits

100% company-paid medical, dental, and vision
401(k) + company stock options
Unlimited paid time off + company paid holidays
Parental leave + IVF and adoption support
Flex Cares Program: Non-profit company match + pet adoption coverage
Pet Insurance
Free Flex subscription

Company HQ

Midtown Manhattan, New York, NY

Leadership

Shragie Lichtenstein

(Co-Founder & CEO)

Experience working in venture capital investments for Point72 and TVC. Also co-founded Boundless Reality.

YeTong Shao

(Co-Founder)

Experience as Data Science Researcher. Also co-founded Boundless Reality.

Share this job

View 54 more jobs at Flex