Decibel is a high-performance, fully on-chain trading platform built in collaboration with Aptos Labs and the Decibel Foundation. Designed to match the speed of high performance trading, Decibel offers spot, perpetuals, and yield products through a unified, self-custodial interface. Decibel aims to serve as the execution layer for the Aptos global trading engine, empowering traders, developers, and institutions with scalable, composable financial infrastructure.

You’ll join a small team of traders, quants, and developers, working closely together to design, build, and operate our trading infrastructure. In this role, you’ll help to develop and maintain our market making, pricing, hedging, and monitoring systems, while also keeping a close eye on live performance and resolving issues in real time. Build and maintain market making, hedging, and inventory management systems across centralized venues and on-chain markets Write and ship production-grade code for execution, connectivity, monitoring, and PnL attribution Analyse trading performance and drive experimentation around parameter tuning, signal generation, and order placement logic, supported by rigorous backtesting.

Monitor risk in real time across spot, perpetuals, and on-chain inventory, tightening the feedback loop between observed PnL and the underlying code Partner with our protocol and product teams on new launches, token listings, and evolving market structures Rust, C++, Java, Python . We expect strong Python plus real systems experience in at least one of Rust, C++,



or Java Comfort reading exchange protocol docs, debugging connectivity at the network layer, and reasoning about latency budgets end-to-end Multi-venue portfolio and trading system experience and the ability to think clearly about inventory, hedging, and risk across more than one book Genuine intellectual interest in market microstructure: order book dynamics, queue position, adverse selection, fee tiers, maker/taker economics GitHub, writeups, side projects, internal tools, anything you can talk about in detail and defend Ability to overlap with at least one of SG, HK, or Tokyo trading hours Crypto or digital asset experience: market making on major CEX / DEX, or running on-chain strategies Exposure to options market making Open source contributions to trading infrastructure, exchange SDKs, or DeFi protocols however, experience with HFT trading systems is essential Small, senior team. We ship aggressively, and treat the trading stack as a product.

Direct feedback, short loops, no theater. Variable comp tied to delivery and team performance #Flexible vacation time Competitive Salary Decibel Foundation is committed to diversity in the workplace, and we’re proud to be an Equal Prospect Employer. We do not hire on the basis of race, color, religion, creed, gender, national origin, citizenship, age, disability, veteran status, marital status, pregnancy, parental status, sex, gender expression or identity, sexual orientation, or any other basis protected by local, state or federal law.

📌 Junior Trader - Quant Engineer (Ottawa)
🏢 Decibel Foundation
📍 Ottawa