Senior Full-Stack Engineer – Trading Systems (React/TS)

gemini; Singapore; Hybrid; SGD 150,000 - 230,000; Full time

Benefits offered by this job

Health plans

Employee equity

Parental Leave

Paid time off

Job summary

Gemini, a global crypto and Web3 platform, is hiring a Senior Full-Stack Engineer (React) to build scalable web apps using React and TypeScript, with backend services in Scala/Go on AWS.

You will own features end-to-end, mentor engineers, and collaborate with product, design, and security across web and mobile platforms, including React Native, while contributing to performance, security, and reliability in a hybrid Singapore office.

Qualifications

• 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.

Responsibilities

• 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.

Skills

React

TypeScript

JavaScript

HTML

CSS

React Native

Frontend architecture

APIs

Distributed systems

Mentoring

Communication

Tools

AWS

Docker

Kubernetes

Terraform

CI/CD

Kafka

Scala

Go

Job description

Gemini, a global crypto and Web3 platform, is hiring a Senior Full-Stack Engineer (React) to build scalable web apps using React and TypeScript, with backend services in Scala/Go on AWS.

You will own features end-to-end, mentor engineers, and collaborate with product, design, and security across web and mobile platforms, including React Native, while contributing to performance, security, and reliability in a hybrid Singapore office.