Serotonin is hiring a

Senior Web3 Frontend Engineer (External)

Our client is a leading institutional investment platform in the digital asset space, providing comprehensive infrastructure and technology for investors to manage their entire digital asset investment lifecycle. Their platform integrates portfolio management, centralized and decentralized trading, risk management, and investment operations, enabling seamless engagement with both permissioned and permissionless decentralized finance (DeFi). Their mission is to build the necessary infrastructure that allows institutional investors to seamlessly integrate digital assets and DeFi into the existing financial system. 

We're seeking a Senior Frontend Engineer with expertise in building high-performance financial applications

Key Responsibilities:

• Develop and maintain responsive web applications using JavaScript, ES6, React, and tailwindCSS.
• Collaborate with cross-functional teams to design, develop, and deploy new features.
• Optimize applications for maximum speed and scalability.
• Ensure the technical feasibility of UI/UX designs.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and contribute to team knowledge sharing.
• Troubleshoot and debug issues as required.

Key Qualifications:

• 5-10 years of professional experience in Front-End development working with React, TypeScript, WebSocket, TradingView.
• Strong experience translating Figma designs into responsive, pixel-perfect websites
• Track record building complex financial interfaces, particularly trading terminals and real-time analytics dashboards
• Expertise in WebSocket management for real-time data feeds
• Experience with TradingView integration and financial charting libraries
• Deep understanding of React performance optimization, including efficient data loading and memory management
• Ability to handle large datasets while maintaining smooth UI performance

Preferred Qualifications:

• Familiarity with the crypto and blockchain space is a plus.

What We Offer:

• Competitive salary and benefits package.
• Opportunity to work with a passionate and innovative team.
• Flexible working hours and remote work options.
• Professional growth and development opportunities.
• A collaborative and inclusive company culture.