Senior Full-Stack Engineer – TradeTerm

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🕒 May 5

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Railsware

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2007

💳 Fintech

🤖 Artificial Intelligence

🤝 B2B

Fintech • Artificial Intelligence • B2B

Railsware is a product studio that specializes in building innovative technology products using Ruby on Rails, React, and React Native. The company supports entrepreneurs and offers services that include web and mobile development, as well as artificial intelligence and machine learning solutions. Railsware is notable for its successful products like Mailtrap, Coupler, and TitanApps, and it aims to empower businesses by providing top-notch technical partnership and resources.

📋 Description

• We’re building a Trading Terminal— a platform for reviewing and replaying trades, designed for prop firms and traders. It combines order flow visualization with replay, audit, and execution in one system. • We work in a spec-driven way: we plan before we build. • Building real-time market data pipelines (Level 2 data, order book reconstruction) • Developing order flow visualizations (footprints, heatmaps, DOM, profiles, CVD) • Improving the trading interface (charts, DOM, tape, order panel working together) • Preparing live data features for partnerships with prop firms • Integrating with market data providers

🎯 Requirements

• 5+ years of engineering experience • Comfortable across backend systems, including low-latency backend • Experience with modern frontend frameworks ( React 18+ / TypeScript) • Active trader: futures or crypto, day trading or scalping • Spec-driven, AI-orchestrated development: you plan deeply and know how to work with AI agents effectively • Experience with real-time market data: WebSocket streaming, order books, Level 2 depth • Ability to produce your own product specs • Ability to make UX decisions based on the UX guide and input from a UX advisor • Fluent English (written and spoken)

🏖️ Benefits

• Ownership — you’ll be involved in the full process: from specs to shipping. No ticket queue. • Product connection — you’ll use the product yourself as a trader. • AI-first team — we use AI as part of how we plan, research, and build, not just as a helper tool. • Working style — flexible. We collaborate when needed and work independently when it’s more effective. We focus on results. • Working style — outcome-driven. We combine synchronous collaboration with focused asynchronous work, choosing the approach that best supports effective outcomes.