> Markdown version of [/jobs/ext/2720334-full-stack-engineer-web-mobile](https://www.wearedevelopers.com/jobs/ext/2720334-full-stack-engineer-web-mobile). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Full Stack Engineer - Web & Mobile

- **Company:** Titan, LLC
- **Location:** New York, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, JavaScript (Programming Language), Performance Tuning, Ui Patterns, Systems Integration, TypeScript, ReactJS, Backend, Real Time Data, Data Management, React Native, Front End Software Development, Restful APIs
- **Published:** September 4, 2026
- **Apply:** https://startup.jobs/senior-full-stack-engineer-web-mobile-titan-4-7726017

## About the Role

* 3 + years of professional experience building full stack applications.
 * Expert in JavaScript / TypeScript with hands-on experience in React and React Native.
 * Familiarity with mobile-first design principles and web/mobile performance considerations.
 * Experience integrating with backend services, RESTful APIs, and real-time data updates.
 * Comfortable operating across frontend and backend boundaries to ship cohesive products.
 * Excellent communication skills and ability to partner with product and design teams.

What Makes You Stand Out

 * Contributions to React or React Native open-source libraries.
 * Experience in fintech or regulated systems with strict reliability expectations.
 * Past work on consumer apps with rapid release cadences.
 * Thought leadership on frontend architecture and tooling.

## Description

Titan is looking for a Senior Full Stack Engineer who can ship end-to-end features that span web and mobile surfaces. You'll partner closely with Product, Design, and Backend teams to deliver seamless user experiences across both React (web) and React Native (mobile) applications. The ideal candidate thrives on solving real, user-facing problems with elegant design and engineering excellence.

Core Responsibilities

 * Build and maintain customer-facing products using React (web) and React Native (mobile).
 * Implement features end-to-end: frontend UI, backend API integration, data management, and performance optimization.
 * Collaborate with product designers to create intuitive, responsive UX across multiple platforms.
 * Identify opportunities to reuse components and unify shared UI patterns and tooling.
 * Ensure stability and high performance on both web and mobile through testing, metrics, and monitoring.
 * Contribute to backend endpoints where needed to support frontend features.
 * Advocate for scalable front-end architecture and clean, maintainable code.


## Related Videos

- [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling)
- [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock)
- [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs)
- [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript)
- [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape)
- [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean)

## Related Articles

- [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025)
- [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023)
- [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025)
- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)
- [Exploring TypeScript: Benefits for Large-Scale JavaScript Projects](https://www.wearedevelopers.com/magazine/554-exploring-typescript-benefits-for-large-scale-javascript-projects)
- [Web Development Best Practices: What The Data Tells us](https://www.wearedevelopers.com/magazine/84-web-development-best-practices-what-the-data-tells-us)