Principal Full Stack Engineer – Web & Mobile

Reposted 10 Days Ago
Be an Early Applicant
New York, NY, USA
In-Office
150K-300K Annually
Senior level
Fintech • Payments • Financial Services
The Role
The Principal Full Stack Engineer will build customer-facing web and mobile products using React and React Native, ensuring performance and optimal user experience through collaboration with design and backend teams.
Summary Generated by Built In

About Titan

Despite decades of innovation in money, the most important consumer money domain remains largely untouched: wealth management. Legacy Wall Street institutions still dominate private wealth, gatekeeping their services behind extremely high minimums, janky user experiences, and layers of fees. They are, in our opinion, the "final boss" of consumer fintech.

Our belief: every American deserves an elite wealth team navigating their capital, delivered at the cost and speed only humans working in harmony with AI can unlock.

At heart, we're a small pack of hard-working rebels operating at the intersection of engineering craft and high-stakes financial precision. Every person here is a calibrated bet on what we're building next. Our mission is to rebuild what a wealth management firm means, from the ground up, brick by brick, leveraging technology across the entire stack, so that AI lets one wealth advisor deliver what used to take a team, serving clients a Wall Street team never could have reached.

We're backed by a16z and Sam Altman, and currently power over $1 billion in assets under management.

Why Join Titan

For the right person, this will be one of the most rewarding roles they ever have.

  • Legacy-defining vision. Private wealth in every pocket isn't an incremental product. It’s not B2B automation. It’s a “before & after” moment in money.

  • The time is now. LLMs just unlocked what was impossible five years ago: truly personalized wealth management for everyone.

  • Outsized decision making. We're a small team by design. Every hire is precise, every role carries real weight, and your decisions disproportionately shape what we become.

  • Built in person, in the trenches. We're a high-touch, high-tempo group that works side by side. You’ll see our founders working in the trenches with the team everyday.

  • Ownership in every sense. Competitive cash and well-above-market equity. We believe in identifying only exceptional talent and compensating them generously.

  • World-class backing. Investors who share the bold vision: a16z, General Catalyst, Accel, Y Combinator, Sam Altman, Paul Graham, and more.

Role Overview

Titan is looking for a Principal 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.

Qualifications

  • 6 + 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.

Skills Required

  • 6+ years of professional experience building full stack applications
  • Expert in JavaScript/TypeScript
  • Hands-on experience in React and React Native
  • Familiarity with mobile-first design principles
  • Experience integrating with backend services and RESTful APIs
  • Excellent communication skills
Am I A Good Fit?
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The Company
HQ: Sturtevant, WI
428 Employees

What We Do

Titan is an award-winning wealth management firm reimagining how ambitious, high-earning professionals manage and experience their wealth. Headquartered in New York City's Greenwich Village, we're building the Wall Street firm of the future. We exist for those who push boundaries, redefine success, and drive society forward. While our members are center stage, reshaping industries and creating the future, we're their wealth team behind the scenes, obsessing over their financial wellbeing – so they don't have to. By combining comprehensive wealth management with unique member benefits, our members have described us as the Amex of Wealth Management. The vision? To build the last wealth platform this generation will ever need. We're selective with who we choose to bring onto the team. If you're not just dreaming of the future, but actively creating it, you belong with us. We'd love to meet you. Disclosures: Titan Global Capital Management USA LLC ("Titan") is an SEC-registered investment adviser. Brokerage services are provided to Titan Advisory Clients (“Clients”) by Titan Global Technologies LLC and Apex Clearing Corporation, both SEC-registered broker-dealers. The description of Titan as ‘the Amex of Wealth Management’ is an opinion expressed independently by clients in September 2024, referring to our membership benefits. The clients were not paid by Titan. The statement does not imply any official endorsement or affiliation, nor is it representative of all client opinions. All statements are for informational purposes only. All investing involves risk. Not investing advice, no guarantee of future results. See disclosures at titan.com/disclosures.

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