Frontend Developer - Trading Platform

The Role

We are looking for a Frontend Developer who can help us build out reliable user interfaces for our trading systems and dashboards that our traders and researchers will use on a day-to-day basis and under high pressure.

Key Responsibilities

Develop and maintain real-time trading interfaces and data visualization dashboards
Build responsive, high-performance components for data-intensive financial applications
Implement WebSocket connections for live market data streaming
Create intuitive order management and portfolio tracking interfaces
Collaborate with traders and researchers to optimize user experience and workflow efficiency
Ensure application security and performance standards for financial systems

Required Technical Skills

Core Frontend Technologies

TypeScript: Advanced proficiency (TypeScript 5+ preferred)
Next.js: Expert-level experience (v15+) with Server Components and App Router
React: Strong knowledge of React 18+, hooks, and modern patterns
State Management: Experience with State or similar lightweight solutions
Forms: Proficiency with React Hook Form for complex form handling

Trading & Financial UI Experience

Real-time trading interface development
WebSocket implementation for live data feeds
Order book visualization and real-time updates
Financial charting integration (TradingView or similar)
High-performance data tables and grids for large datasets

UI Development & Styling

Tailwind CSS: Strong proficiency
Component Libraries: Experience with Radix UI and/or shadcn/ui
Data Grids: Familiarity with MUI DataGrid or equivalent high-performance solutions
Responsive Design: Multi-device compatibility

Security & Authentication

Auth0 or similar authentication systems
Financial application security best practices
Secure data handling and transmission

Development Practices

Modern build tools and frontend workflows
ESLint and code quality standards
Git version control and collaborative workflows
Clean, maintainable, well-documented code

Preferred Qualifications

Previous experience with financial or trading applications
Frontend performance optimization expertise
Zod validation library experience
Track record of building complex, data-intensive UIs with exceptional UX

What We Offer

Contract Duration: 1+ year commitment
Probation Period: 3 months
Start Date: September 2025
Location: Seoul, South Korea (on-site)
Compensation: Competitive salary, open to discussion based on experience

Application Process

Please submit your resume along with:

Portfolio or examples of trading/financial interface work (if available)
GitHub profile or code samples demonstrating relevant technical skills

Process: After resume review, selected candidates will proceed to an interview in person.

Sun Labs AG is committed to building a diverse and inclusive team. We welcome applications from all qualified candidates regardless of background.