Senior Mobile Developer

About Us

We’re second-time founders who previously built and successfully exited a company in the same space. After raising a significant seed round, we’re now scaling Momentum - a data-driven platform transforming how mobile apps are built, distributed, and monetized for millions of users.

Our product is already live, generating revenue, and rapidly expanding - validating both our vision and technology.

The Opportunity

At Momentum, you’ll take a leading role in building the core front-end and mobile foundations of our product.

We’re looking for a strong hands-on frontend developer who has designed and developed complete applications from the ground up - from first commit to App Store launch. You’ll work closely with the founders and engineering team to define architecture, shape the product experience, and lay the groundwork for scalable growth.

Responsibilities

• Design, architect and implement end-to-end front-end and mobile app features with a focus on performance and scalability.
• Build applications from scratch - including onboarding flows, in-app experiences, and integrations with backend services.
• Collaborate closely with product and backend engineers to translate ideas into production-ready experiences.
• Define and maintain front-end best practices, code quality standards, and reusable components.
• Take ownership of UX/Ui quality, responsiveness, and delivery timelines.
• Contribute to technical and product direction, influencing how Momentum evolves.

Qualifications

• 5+ years of experience in front-end or full-stack development, with a proven track record in building and launching android and ios applications.
• Deep expertise in React Native, hands-on experience with Next.js is a strong advantage.
• Strong proficiency in TypeScript, state management (Redux, Zustand, or Recoil), and performance optimization.
• Experience working in a startup or fast-paced environment - an advantage.
• Excellent communication skills and collaborative mindset.

What We Offer

• The opportunity to build a product and company from the ground up as one of the first engineers.
• Significant ownership and influence over product decisions and technical direction.
• A clear path for career growth as the team expands.
• Competitive compensation and equity package aligned with impact.
• A culture that values initiative, creativity, and constant learning.