Senior Software Engineer, Invest / Trade (Full Stack, React)

As a Senior Software Engineer on Gemini's Invest/Trade team, you build and own products across web, mobile, and backend systems. Your primary focus is developing complex web applications using React and TypeScript, while contributing to React Native mobile applications and backend services built with Scala and Go on AWS.

What you'll do

• Design and deliver scalable web applications using React and TypeScript
• Own features from technical design through release, monitoring, and improvement
• Define frontend architecture and build reusable components
• Contribute to React Native applications for iOS and Android
• Develop and integrate backend services using Scala or Go
• Make pragmatic technical decisions and communicate trade-offs
• Improve performance, accessibility, reliability, testing, and security
• Collaborate with product managers, designers, and engineers
• Review code, mentor engineers, and improve engineering standards
• Use AI development tools effectively while remaining accountable for code quality

What you bring

• Strong experience with React, TypeScript, JavaScript, HTML, and CSS
• Experience building large-scale, production-grade web applications
• Strong knowledge of frontend architecture, performance, testing, and accessibility
• Solid software engineering and system-design fundamentals
• Experience integrating web applications with APIs and distributed systems
• Ability and willingness to contribute to React Native and backend development
• Proven ownership of complex projects from design to production
• Strong communication, technical leadership, and mentoring skills

Nice to have

• React Native or native mobile development experience
• Backend development with Scala, Go, Java, or Kotlin
• AWS, Docker, Kubernetes, Terraform, and CI/CD
• REST APIs, event-driven architecture, Kafka, and distributed systems
• AI coding agents and AI-assisted development workflows
• Experience in financial services, trading, payments, or regulated systems

What we offer

• Comprehensive health plans covered at 100% for employees and dependents
• Long-term incentive in the form of a new hire equity grant
• Paid parental leave
• Competitive paid time off
• Hybrid work policy in Singapore with in-person onboarding required

About Gemini

Gemini is a globally accessible crypto and Web3 platform founded in 2014, offering crypto products and services to individuals and institutions in over 70 countries. As a publicly traded company, Gemini bridges traditional finance with the emerging cryptoeconomy, aiming to unlock financial, creative, and personal freedom through trusted access to the decentralized future.