Software Engineer I, Fullstack, Risk Engineering (New Grad - 2025)

<div class="content-intro"><p>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 2026 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?</p></div><h3><strong>About the role</strong></h3> <p>Flex is looking for a <strong>Software Engineer I</strong> to join our <strong>Risk Engineering</strong> team. In this role, you will contribute to the development of services and APIs that support Flex’s <strong>risk decisioning, fraud prevention, and credit access</strong> systems.</p> <p>You’ll work closely with experienced engineers and technical leaders to deliver reliable, scalable features across both backend services and user-facing applications. 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.</p> <h3><strong>What you’ll do</strong></h3> <ul> <li>Build and maintain <strong>backend services and APIs</strong> in <strong>Java (Spring Boot)</strong> that support real-time risk decisioning and fraud prevention.</li> <li>Develop <strong>user-facing features</strong> using <strong>TypeScript</strong> with <strong>React and/or React Native</strong> for risk-related flows across web and mobile.</li> <li>Collaborate with <strong>product, design, and engineering</strong> partners to deliver end-to-end features from requirements to production.</li> <li>Write clean, well-tested, and maintainable code, participating in <strong>code reviews</strong> and learning best practices.</li> <li>Help monitor, debug, and support <strong>production systems</strong>, gaining experience with distributed systems and operational excellence.<br><br></li> </ul> <h3><strong>Qualifications</strong></h3> <h4><strong>Minimum Qualifications</strong></h4> <ul> <li>Bachelor’s degree in Computer Science or a related field (or equivalent practical experience).</li> <li>Strong foundational knowledge of <strong>Java</strong> and object-oriented programming principles.</li> <li><strong>Experience with React or React Native</strong>, and proficiency in <strong>TypeScript</strong>.</li> <li>Understanding of <strong>data structures, algorithms, and basic system design concepts</strong>.</li> <li>Familiarity with <strong>REST APIs</strong> and service-oriented architectures.</li> <li>Experience working with <strong>relational databases</strong> and writing SQL queries.</li> <li>Familiarity with <strong>Git</strong> or other version control systems.</li> <li>Ability to communicate clearly, collaborate effectively, and ask questions.</li> <li>Curiosity about how systems work and a desire to learn continuously.</li> </ul> <p><strong>Preferred Qualifications</strong></p> <ul> <li>Exposure to <strong>risk engineering</strong>, fraud detection, or decision platforms (through coursework, internships, or prior roles).</li> <li>Experience building <strong>high-quality mobile and web UIs</strong> to product and design specifications.</li> <li>Experience with the <strong>React Native and React ecosystems</strong>, including <strong>Hooks, Components, Context, and Redux</strong>.</li> <li>Experience with <strong>Spring Boot</strong> or backend service development.</li> <li>Basic knowledge of <strong>cloud platforms</strong>, particularly AWS.</li> <li>Familiarity with <strong>CI/CD pipelines</strong> (e.g., GitHub Actions).</li> <li>Exposure to <strong>observability and monitoring tools</str ... (truncated, view full listing at source)