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Designs, builds, and maintains scalable backend services for a crypto trading platform using Go/Ruby, optimizing performance and security for REST/WebSocket APIs.
Build and maintain backend services for a crypto trading platform using Ruby/Go, AWS, and databases; optimize performance and collaborate with cross-functional teams.
About the Role We are looking for an experienced Backend Engineer to design and build scalable, high-performance backend systems that power large-scale applications. You will work on distributed systems, event-driven…
Builds scalable back-end and full-stack systems for crypto-mining products using Python, Go, Docker, and cloud tech, while collaborating with product and engineering teams.
Build and lead the front-end architecture for a modern web platform using React, Next.js, and TypeScript, shaping user experiences and mentoring engineers.
Develop and maintain Java-based applications, write Python automation scripts, and integrate systems via REST APIs, WebSockets, and SFTP in a Unix/Linux environment.
Build and automate Java/Python applications with REST/WebSocket APIs, focusing on real-time data exchange, performance, and incident response.
Build interactive 3D digital twin dashboards in Unity that visualize real-time IoT/OT data for operational insights, integrating geospatial layers and optimizing rendering performance.
Build and maintain high-performance frontend and backend services for Kraken’s onchain products, integrating blockchain networks and APIs with React, Node.js, and TypeScript.
Builds high-performance React UIs for trading apps, integrating real-time data via WebSockets and optimizing performance for low-latency workflows.
This role is for a Senior Full Stack UI Developer in Citi Equities Technology. The candidate should possess strong analytical and technical ability with at least 8 to 10 years of experience in React, Redux, websockets…
Builds and maintains full-stack web apps using React/Next.js, Node.js, and cloud services, with CI/CD, DevOps, and security best practices in an agile environment.
Builds a React 18/TypeScript frontend for a legal AI platform, including a streaming chat UI, interactive knowledge-graph explorer, and multilingual i18n framework.
Build secure fintech and blockchain infrastructure, including digital asset wallets, transaction systems, and scalable APIs using React, Java/Spring Boot, and cloud-native tools.
Build and maintain React/TypeScript web apps for equities trading, using Redux, WebSockets, and unit tests to improve efficiency and reduce risk in a global finance setting.
Build and maintain high-performance web apps in React/TypeScript, manage state with Redux, and collaborate with global teams to deliver fintech solutions.
Build and maintain full-stack web applications using Node.js, React, TypeScript, and modern frameworks; collaborate with cross-functional teams to deliver scalable, secure features.
Build full-stack applications that turn real-time emergency data into actionable insights for first responders using Java, React, and cloud-native tools.
Builds cloud-native, full-stack apps that turn real-time emergency data into actionable insights for first responders using Java/Go/Python, React/Angular, and AWS/Azure.
Builds and optimizes a high-load Vue 3/Nuxt 3 frontend for a construction workforce tool that tracks crews, verifies hours via AI, and syncs data to Procore and Power BI.
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