Senior Full Stack Engineer (React Native/Node.js)

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.

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.

• Build complex mobile experiences in React Native/Expo for iOS and Android

• Design and implement scalable backend APIs handling financial transactions and sensitive user data

• Architect database schemas and queries for high-performance financial data operations

• Integrate with third-party services (e.g., Stripe, AI services)

• Optimize application performance and user experience at scale

• Develop new features, improvements, and bug fixes for the MaxRewards mobile app using React Native and Expo

• Build and maintain RESTful APIs using Node.js and Express

• Design MongoDB schemas and implement efficient database queries

• Write clean, maintainable code with proper testing and documentation

• Participate in code reviews and contribute to technical architecture decisions

• Deploy and monitor applications on AWS infrastructure

• 4+ years of full-stack software engineering experience

• 3+ years of professional experience with React Native and modern mobile development

• 2+ years of professional experience with Node.js and building REST APIs

• Strong proficiency with JavaScript/TypeScript and modern frameworks

• Experience with MongoDB or other NoSQL databases

• Understanding of cloud infrastructure (AWS preferred)

• Experience building secure applications that handle sensitive user data

• Strong problem-solving skills and ability to work independently

• Experience with Expo and React Native development best practices

• Experience with CI/CD pipelines and DevOps practices

• Experience at early-stage startups or high-growth companies

• Interest in personal finances, credit cards, or travel hacking

• Product-minded: Think about member experience and business impact, not just code

• Self-starter: Take ownership of features from concept to deployment

• Quality-focused: Write maintainable code with appropriate testing

• Fast learner: Quickly adapt to new technologies and problem domains

• Strong bias toward action: Balance quality with shipping and iterating

• Collaborative: Work effectively with small teams and contribute to technical discussions

• Competitive salary: $120K–$160K base + 0.1%–0.5% equity

• Excellent benefits: Up to 100% employer-paid health/dental/vision insurance

• 401(k) with 100% match up to 6% after 1 year of employment

• Opportunity to shape product direction as part of a small team

• Direct impact on 700K+ members' financial outcomes

• Work on cutting-edge features with modern tech stack

If 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!