System Software Engineer - AI

Delos Data Inc
Montreal, Canada
Hybrid

Who this role is best for

Strong fit for systems engineers with deep expertise in AI infrastructure who thrive in collaborative, hybrid environments.

Best fit for

  • Candidates with experience in large-scale AI infrastructure and distributed systems design
    — “designing and implementing the communication and execution primitives that allow large-scale AI models to run efficiently across thousands of GPUs”
  • Individuals who have worked in both high-level AI frameworks and low-level systems programming
    — “bridge the gap between high-level AI frameworks and low-level system software”
  • Professionals with a background in GPU programming and performance optimization
    — “Experience with GPU programming (CUDA) and performance optimization for parallel architectures”

Things to consider

  • The role demands a hybrid work arrangement with a base in Montreal
    — “This is a hybrid role based in Montreal”
  • Equity is offered, suggesting a long-term commitment to the company’s vision
    — “meaningful equity + benefits + RRSP”

How to stand out

  • Highlight projects involving distributed AI workloads and GPU performance tuning
    — “Identify and resolve performance bottlenecks in distributed training and inference workloads”
  • Demonstrate hands-on experience with multi-node cluster benchmarking and analysis
    — “Conduct rigorous performance benchmarking and characterization on multi-node clusters”
  • Showcase expertise in systems programming with C++ and Python, particularly memory and concurrency management
    — “Strong proficiency in C++ and Python, with a deep understanding of systems programming fundamentals (memory management, concurrency, OS internals)”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • designing and implementing communication and execution primitives for large-scale AI models
  • identifying and resolving performance bottlenecks in distributed training and inference workloads
  • conducting rigorous performance benchmarking and characterization on multi-node clusters
Typical background
Bachelor's or Master's degree in Computer Engineering, Computer Science, or a related field

Skills & requirements

Required

C++PythonLinux Development EnvironmentSystems Programming FundamentalsMemory ManagementConcurrencyOS Internals

Preferred

GPU Programming (cuda)Performance Optimization For Parallel ArchitecturesDistributed AI Frameworks (pytorch, JAX, Deepspeed)Inference Engines (vllm, Sglang, Dynamo/trt-llm)Large-scale Cluster Orchestration And Telemetry Tools

Stack & domain

C++PythonLinux Development EnvironmentGPU Programming (cuda)Performance Optimization For Parallel ArchitecturesDistributed AI FrameworksLarge-scale Cluster Orchestration And Telemetry ToolsCollaborationProblem-solvingTeamworkLeadershipAIData Center ClustersPerformanceScalabilityResiliency

About the role

Original posting from Delos Data Inc via Ashby

System Software Engineer - AI

About us:

We are a 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.

Some Recent Press:

https://www.eetimes.com/startup-boosts-scale-up-to-1000-gpus-in-a-single-domain/

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.

Location:

This is a hybrid role based in Montreal.

Compensation:

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

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.

Agency Note:

We do not accept resumes from agencies or search firms. Please do not forward candidate profiles through our careers page, email, LinkedIn messages, or directly to company employees. Any resumes submitted will be deemed the property of the company, and no fees will be paid in the event the candidate is hired.

#LI-EW1

Source: Delos Data Inc careers (Ashby)

Similar roles