Real-Time Systems Engineer — Research & LLM Infra

DRW; Montreal (administrative region); On-site; CAD 110,000 - 170,000; Full time

Benefits offered by this job

Mentorship program

Postgraduate degree support

Language tutoring

Volunteer hours

Bi-weekly social activities

Wellness plan with on-site massages

On-site meals & snacks

RRSP matching

Job summary

DRW in Montreal is seeking a software engineer focused on building real-time, data-intensive systems and agentic LLM-driven tools. You will prototype quickly, validate signals, and deploy scalable production systems that operate at low latency across a trading environment.

You will work with Python, Go, Rust and network protocols, shaping infrastructure and performance from edge to memory stores. A strong track record with end-to-end systems is essential.

Qualifications

• 3-5 years building real-time or data-intensive systems (trajectory and depth valued).
• Deep knowledge of LLMs: behavior, tools, memory, retries, evals, cost/latency trade-offs.
• Strong fundamentals in Python, Go or Rust; deep systems experience in another language.
• Deep knowledge of network programming and protocols: TCP/UDP/IP, DNS, BGP, HTTP(S), WebSocket, QUIC.
• Rapid POCs to production: validate significance, iterate, ship and explain results to technical and non-technical audiences.
• Bachelor's or Master's in Computer Science, Data Science, Mathematics, or related discipline.

Responsibilities

• Discovery & Research: Expand event-driven strategy across feeds, news, social media, telemetry; run rapid analyses in Python/Jupyter to assess signal quality and drive improvements.
• LLM & Agentic Systems: Build agentic harnesses—tools, context management, evals, guardrails—for production data and infrastructure.
• Infrastructure & Technical Leadership: Own full-stack performance and lead green-field initiatives, design reviews, post-mortems.

Skills

Real-time systems

LLMs depth

Python/Go/Rust

Networking protocols

POCs to production

CS/DS/Math degree

Education

Bachelor's or Master's in Computer Science, Data Science, Mathematics

Tools

Python

Go

Rust

Job description

DRW in Montreal is seeking a software engineer focused on building real-time, data-intensive systems and agentic LLM-driven tools. You will prototype quickly, validate signals, and deploy scalable production systems that operate at low latency across a trading environment.

You will work with Python, Go, Rust and network protocols, shaping infrastructure and performance from edge to memory stores. A strong track record with end-to-end systems is essential.