Job Title: Senior Frontend Developer Company Name: Bits of Stock Job Url: https://wellfound.com/jobs/3358293-senior-frontend-developer-take-ownership-of-our-frontend Job Description: Bits of Stock Actively Hiring Bits of Stock makes investing as easy as earning points Save Apply Now Senior Frontend Developer - Take Ownership of Our Frontend $70k – $100k • 0.0% – 0.5% | Remote ( United States ) |5 years of exp |Full Time Reposted: 1 day ago• Recruiter recently active Hires remotely in United States Remote Work Policy Remote only Company Location Miami •  Amsterdam Visa Sponsorship Not Available Preferred Timezones Eastern Time Collaboration Hours 8:00 AM - 5:00 PM Eastern Time Relocation Not Allowed Skills TypeScript React.js About the job About Our Product We build embedded investment and rewards interfaces that integrate into bank and credit union digital platforms. Our co-branded solution enables financial institutions to offer stock rewards, round-ups, and portfolio management directly within their existing online banking experience. See our product: https://www.bitsofstock.com/Product What You'll Actually Build User experiences that take users from "what's a stock?" to actively investing Portfolio dashboards that make $10K look as manageable as $10 Financial tools that turn everyday spending into wealth building Flexible interfaces that fit to each bank's brand and platform Real-time investing tools that make complex data accessible and engaging for investing newcomers The Role You'll inherit ownership of our established React/TypeScript frontend. We're seeking a senior developer to take the reins and guide the next phase of growth, with plans to expand the team to support you as we scale. What You'll Do Take ownership of established React/TypeScript frontend application Evaluate and improve existing architecture and patterns Build responsive interfaces optimized for iframe embedding across various banking platforms Drive technical decisions for product evolution and scaling Help hire and mentor the expanding team Collaborate with backend developers to integrate UI with API services Required Skills Strong proficiency in TypeScript and React (5-6+ years) Strong understanding of frontend authentication best practices including SSO Experience with responsive design in constrained environments Strong understanding of state management (Redux, React Context or other) Experience with modern frontend build tools and workflows Proven track record of writing clean, maintainable code Experience with frontend testing frameworks Bonus Points Affinity for financial technology, including stock markets, banking technology, or payments Experience with micro-frontend architecture Experience with backend for frontend pattern Material UI experience Basic knowledge of Python/Django Proven ability to work independently in a remote environment Our Tech Stack React/TypeScript • Python/Django • PostgreSQL • AWS What We Offer Meaningful equity in a Series A-ready fintech company Flexible PTO Remote work with direct impact on product direction Own the frontend as we scale Work with experienced team that's solved hard fintech problems Growth potential and opportunity to build your own team To Apply We appreciate candidates using AI to craft thoughtful applications - we use it too where it fits! For especially excited applicants: Instead of a cover letter tell us about: Your most interesting React project in production (company name + what made it technically challenging) Why building in the investing space interests you What helps: Specific examples over generic statements. It's fine to say "no fintech experience but excited about the embedded challenges" rather than fabricating experience. Note: We'll discuss projects you mention in interviews, so please only include work you can talk about in detail.