Senior Full-Stack Engineer: Real-Time Trading & Analytics

United States Digital Space LLC; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

United States Digital Space LLC is seeking a Senior Full-Stack Engineer to build mission-critical trading and analytics applications used daily by traders, researchers, and analysts. This is a genuinely full-stack role: designing responsive, data-intensive React applications; building the Go services and real-time APIs behind them; and taking systems through to reliable production operation.

The applications are real-time and performance-sensitive, where accuracy, responsiveness, and reliability

Qualifications

• 4+ years of professional full-stack experience with production ownership across frontend and backend systems.
• Strong production experience with Go/Golang.
• Strong TypeScript, React, HTML, and CSS skills; knowledge of Svelte or Vue is a plus.
• Experience building responsive, data-intensive web applications with real-time updates.
• Good understanding of WebSockets and/or Server-Sent Events.
• Experience optimising frontend performance, including rendering, browser memory, and large-scale data handling.
• Experience building reusable components, shared abstractions, SDKs, or platform capabilities.
• Strong software design, testing, API design, and cloud-infrastructure fundamentals.
• Excellent communication skills and the ability to work effectively with technical and non-technical users.
• Comfortable working autonomously in a fast-moving environment.

Responsibilities

• Partner with traders, researchers, and business stakeholders to turn complex workflows into effective products.
• Own solutions end to end, from requirements and technical design through delivery, production support, and iteration.
• Build high-performance React and TypeScript applications for real-time trading, analytics, and operational workflows.
• Design, build, and operate production Go services, APIs, and backend integrations.
• Develop robust real-time data flows and data-rich interfaces for large, frequently updating datasets.
• Create reusable UI components, shared libraries, and extensible platform capabilities.
• Drive architecture and performance decisions across frontend, backend, and data flows.
• Ensure applications are reliable, maintainable, well tested, and observable in production.
• Work in a fast-paced, collaborative environment with a high degree of ownership.

Skills

Go/Golang

TypeScript

React

HTML

CSS

WebSockets

Server-Sent Events

Frontend performance

API design

Cloud infrastructure

Observability

Communication skills

Tools

Docker

CI/CD

Kafka

Protobuf

Databases

Microservice architectures

Job description

United States Digital Space LLC is seeking a Senior Full-Stack Engineer to build mission-critical trading and analytics applications used daily by traders, researchers, and analysts. This is a genuinely full-stack role: designing responsive, data-intensive React applications; building the Go services and real-time APIs behind them; and taking systems through to reliable production operation.

The applications are real-time and performance-sensitive, where accuracy, responsiveness, and reliability