Senior Full-Stack Engineer (TradeTerm)

<p>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.</p> <p>We work in a spec-driven way: we plan before we build. If you’re a <strong>senior engineer</strong> who <strong>actively trades</strong> and cares about building better trading tools, this role is for you.&nbsp;</p> <h3><strong>The team</strong></h3> <p>We’re a small founding team: 2 co-founders and 1 engineer (you would be the second), plus part-time support in Product, DevOps, and Compliance + access to a senior Railsware Director with experience shipping many products.</p> <p><strong>Yaroslav Lazor</strong> — engineering &amp; product (previously worked on Calendly)<br><strong>Umar Ashraf</strong> — markets &amp; distribution (runs a 4M+ YouTube trading channel, founder of Tradezella)</p> <h3><strong>What you’ll get</strong></h3> <ul> <li><strong>Ownership</strong> — you’ll be involved in the full process: from specs to shipping. No ticket queue.</li> <li><strong>Product connection</strong> — you’ll use the product yourself as a trader.</li> <li><strong>AI-first team</strong> — we use AI as part of how we plan, research, and build, not just as a helper tool.</li> <li><strong>Working style</strong> — flexible. We collaborate when needed and work independently when it’s more effective. We focus on results.</li> <li>Working style — outcome-driven. We combine synchronous collaboration with focused asynchronous work, choosing the approach that best supports effective outcomes.</li> </ul> <p>&nbsp;</p> <h3><strong>Who we’re looking for</strong></h3> <p>A senior full-stack engineer who is also an active trader. This role requires both strong engineering skills and real trading experience.</p> <p>If you only code or only trade, this is probably not the right fit. We’re looking for someone who is comfortable working across product, technology, and trading.</p> <h3><strong>Requirements</strong></h3> <ul> <li>5+ years of engineering experience</li> <li>Comfortable across backend systems, including low-latency backend</li> <li>Experience with modern frontend frameworks ( React 18+ / TypeScript)</li> <li>Active trader: futures or crypto, day trading or scalping</li> <li>Spec-driven, AI-orchestrated development: you plan deeply and know how to work with AI agents effectively</li> <li>Experience with real-time market data: WebSocket streaming, order books, Level 2 depth</li> <li>Ability to produce your own product specs</li> <li>Ability to make UX decisions based on the UX guide and input from a UX advisor</li> <li>Fluent English (written and spoken)</li> </ul> <p><strong>Would be a plus:&nbsp;</strong></p> <ul> <li>Rust (we use Rust/Axum), Experience with high-performance browser rendering (e.g. WebAssembly, ImGui, egui)</li> <li>Familiarity with trading tools like footprint charts, DOM/ladder, heatmaps, market/volume profile, CVD</li> </ul> <h3><strong>What you’ll work on (first 90 days)</strong></h3> <ul> <li>Building real-time market data pipelines (Level 2 data, order book reconstruction)</li> <li>Developing order flow visualizations (footprints, heatmaps, DOM, profiles, CVD)</li> <li>Improving the trading interface (charts, DOM, tape, order panel working together)</li> <li>Preparing live data features for partnerships with prop firms</li> <li>Integrating with market data providers</li> </ul>