System Software Engineer - AI

Delos Data; Montreal (administrative region); Hybrid; CAD 120,000 - 180,000; Full time

Benefits offered by this job

Meaningful equity

Benefits

401k

Job summary

Delos Data is seeking a talented System Software Engineer to redefine the infrastructure layer of AI. This role involves bridging high-level AI frameworks and low-level system software, focusing on performance optimization and communication primitives for large-scale AI models. The ideal candidate has strong proficiency in C++ and Python, experience in a Linux environment, and familiarity with GPU programming and distributed AI frameworks. Compensation ranges from $120,000 to $180,000 CAD annually, along with meaningful equity and benefits.

Qualifications

• Strong proficiency in C++ and Python, with a deep understanding of systems programming fundamentals.
• Proficient in a Linux development environment.

Responsibilities

• Collaborate across the stack to influence the foundational technology design.
• Identify and resolve performance bottlenecks in distributed training and inference workloads.
• Conduct performance benchmarking and characterization on multi-node clusters.

Skills

C++

Python

Systems programming fundamentals

Linux development environment

Education

Bachelor's or Master's degree in Computer Engineering, Computer Science, or related field

Tools

GPU programming (CUDA)

Distributed AI frameworks (PyTorch, JAX, or DeepSpeed)

Large-scale cluster orchestration tools

Job description

About Us

We are a stealth‑mode startup building foundational technology to address performance, scalability, and resiliency challenges in large‑scale AI data center clusters. We are backed by top‑tier VC firms and notable angel investors. The company is led by experienced builders and operators who have founded companies, taken them to scale, and exited successfully. We work with a strong sense of unity and shared responsibility, and we expect trust, integrity, and respect in how we collaborate and make decisions. We hold ourselves accountable to one another and to the quality of the work we deliver. Headquartered in Silicon Valley, we operate across a mix of remote and on‑site locations in the U.S. and Canada. We aim to create an environment where people are treated fairly, supported in their growth, and are empowered to do meaningful work alongside others who take the craft seriously.

We Are Looking For

We are looking for a talented System Software Engineer to help us redefine the infrastructure layer of AI. In this role, you will bridge the gap between high‑level AI frameworks and low‑level system software. You will be responsible for designing and implementing the communication and execution primitives that allow large‑scale AI models to run efficiently across thousands of GPUs. We are looking for a “builder” who thrives in the early stages of a product’s lifecycle and is passionate about solving the “hard” systems problems of the generative AI era.

Key Responsibilities

• Collaborate across the stack to influence the design of our foundational technology, ensuring it meets the needs of next‑generation AI models.
• Identify and resolve performance bottlenecks in distributed training and inference workloads through deep‑dive analysis of the software‑hardware interface.
• Conduct rigorous performance benchmarking and characterization on multi‑node clusters.

Required Skills And Qualifications

• Strong proficiency in C++ and Python, with a deep understanding of systems programming fundamentals (memory management, concurrency, OS internals).
• Proficient in a Linux development environment.

Desired Skills

• Experience with GPU programming (CUDA) and performance optimization for parallel architectures.
• Familiarity with distributed AI frameworks (PyTorch, JAX, or DeepSpeed) and/or inference engines (vLLM, SGLang, Dynamo/TRT‑LLM).
• Hands‑on experience with large‑scale cluster orchestration and telemetry tools.

Education

• Bachelor's or Master's degree in Computer Engineering, Computer Science, or a related field.

Compensation

Target base salary for this role is $120,000 - $180,000 CAD per year + meaningful equity + benefits + 401k. Our salary ranges are determined by role, level, experience, and location.

Equal Opportunity Employer

We are an equal opportunity employer. We value a range of perspectives and experiences and make employment decisions based on merit and business needs. We do not discriminate on the basis of legally protected characteristics.