Senior Software Engineer, Backend (AI Platform)

Cresta; Toronto; On-site; CAD 100,000 - 130,000; Full time

Job summary

A leading company in AI is seeking a Senior Software Engineer, Backend to design and maintain high-performance serving stacks for ML models. The role involves automating training pipelines, optimizing system performance, and mentoring engineers on best practices. Join us to revolutionize the workforce with AI and contribute to a cutting-edge platform.

Benefits

Medical, dental, and vision plans

Paid parental leave

Monthly Health & Wellness allowance

Work from home office stipend

Lunch reimbursement

3 weeks PTO in Canada

Qualifications

• 5+ years writing production software; 2+ years focused on ML platform or infra.
• Proven experience with serving frameworks like vLLM or Triton.

Responsibilities

• Design, build, and maintain low-latency serving stacks for ML models.
• Automate training pipelines on Kubernetes with MLOps practices.
• Optimize system performance and cost through caching and autoscaling.

Skills

Python

Golang

Kubernetes

Distributed Systems

Networking

Container Security

Tools

Terraform

Helm

Job description

Senior Software Engineer, Backend (AI Platform)

Senior Software Engineer, Backend (AI Platform)

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Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center. Our platform combines the best of AI and human intelligence to help contact centers discover customer insights and behavioral best practices, automate conversations and inefficient processes, and empower every team member to work smarter and faster. Born from the prestigious Stanford AI lab, Cresta's co-founder and chairman is Sebastian Thrun, the genius behind Google X, Waymo, Udacity, and more. Our leadership also includes CEO, Ping Wu, the co-founder of Google Contact Center AI and Vertex AI platform, and CTO & co-founder, Tim Shi, an early member of Open AI.

Join us on this thrilling journey to revolutionize the workforce with AI. The future of work is here, and it's at Cresta.

About The Role

• Own model serving: Design, build, and maintain low-latency, highly-available serving stacks for in-house ML model serving and integrating with LLM serving partners.
• Automate training pipelines: Orchestrate data prep, training, evaluation, and registry workflows on Kubernetes with solid MLOps practices.
• Optimize at scale: Profile and tune throughput, memory, and cost; introduce caching, sharding, batching, and GPU/CPU autoscaling where it pays off.
• Build platform primitives: Create reusable SDKs, templates, and CLI tools that let research and product teams ship models independently and safely.
• Raise the bar: Instrument deep observability (tracing, metrics, alerts), drive blameless post-mortems, and mentor engineers on production ML best practices.
  
  

What We’re Looking For

• 5+ years writing production software; 2+ years focused on ML platform or infra.
• Expert Python (async, typing, packaging, performance).
• Working Golang knowledge for systems components.
• Proven experience with one or more serving frameworks (e.g., vLLM, Triton, TorchServe).
• Kubernetes and cloud-native ops.
• Solid grasp of distributed systems, networking, and container security.
• Culture of rigorous testing, code review, and continuous delivery.
  
  

Nice-to-haves

• Hands-on with large language models or real-time streaming inference.
• Terraform, Helm, or similar IaC tooling.
• Experience in speech or conversational AI domains.
  
  

Perks & Benefits

• We offer Cresta employees a variety of medical, dental, and vision plans, designed to fit you and your family’s needs
• Paid parental leave to support you and your family
• Monthly Health & Wellness allowance
• Work from home office stipend to help you succeed in a remote environment
• Lunch reimbursement for in-office employees
• PTO: 3 weeks in Canada
  
  

Compensation for this position includes a base salary, equity, and a variety of benefits. Actual base salaries will be based on candidate-specific factors, including experience, skillset, and location, and local minimum pay requirements as applicable. We are actively hiring for this role in the US and Canada. Your recruiter can provide further details.

We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @cresta.ai domain. Any outreach claiming to be from Cresta via other sources should be ignored. If you are uncertain whether you have been contacted by an official Cresta employee, reach out to [e-mail]

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Software Development

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