Company Name: MaxRewards

Job Details: Hiring,Remotely,in,USA,Remote,120K-160K,Annually,Senior,level

Job Url: https://builtin.com/job/senior-full-stack-engineer-react-native-node-js/7507633

Job Description: About Us MaxRewards is an early-stage technology startup building the financial optimization layer for consumers and small businesses. Our rapidly growing platform helps 700K+ members effortlessly manage their credit cards, unlock hidden offers, and strategically maximize their rewards—all in one seamless experience.The Role We're seeking a Senior Full Stack Engineer to join our core product team. Reporting directly to the CTO and working alongside our other full-stack engineers, you'll build features across our mobile app and backend systems that directly impact how hundreds of thousands of users manage their financial lives.Technical Challenges You'll SolveBuild complex mobile experiences in React Native/Expo for iOS and AndroidDesign and implement scalable backend APIs handling financial transactions and sensitive user dataArchitect database schemas and queries for high-performance financial data operationsIntegrate with third-party services (e.g., Stripe, AI services)Optimize application performance and user experience at scaleKey ResponsibilitiesDevelop new features, improvements, and bug fixes for the MaxRewards mobile app using React Native and ExpoBuild and maintain RESTful APIs using Node.js and ExpressDesign MongoDB schemas and implement efficient database queriesWrite clean, maintainable code with proper testing and documentationParticipate in code reviews and contribute to technical architecture decisionsDeploy and monitor applications on AWS infrastructureRequired Qualifications4+ years of full-stack software engineering experience3+ years of professional experience with React Native and modern mobile development2+ years of professional experience with Node.js and building REST APIsStrong proficiency with JavaScript/TypeScript and modern frameworksExperience with MongoDB or other NoSQL databasesUnderstanding of cloud infrastructure (AWS preferred)Experience building secure applications that handle sensitive user dataStrong problem-solving skills and ability to work independentlyPreferred QualificationsExperience with Expo and React Native development best practicesExperience with CI/CD pipelines and DevOps practicesExperience at early-stage startups or high-growth companiesInterest in personal finances, credit cards, or travel hackingKey Attributes for SuccessProduct-minded: Think about member experience and business impact, not just codeSelf-starter: Take ownership of features from concept to deploymentQuality-focused: Write maintainable code with appropriate testingFast learner: Quickly adapt to new technologies and problem domainsStrong bias toward action: Balance quality with shipping and iteratingCollaborative: Work effectively with small teams and contribute to technical discussionsWhat We OfferCompetitive salary: $120K–$160K base + 0.1%–0.5% equityExcellent benefits: Up to 100% employer-paid health/dental/vision insurance401(k) with 100% match up to 6% after 1 year of employmentOpportunity to shape product direction as part of a small teamDirect impact on 700K+ members' financial outcomesWork on cutting-edge features with modern tech stackIf you're passionate about building elegant mobile experiences, excited about fintech innovation, and want to make a massive impact at a high-growth startup, we'd love to hear from you!