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Senior Software Engineer, Linux Kernel
Arista Networks
Vancouver, BC
- Full-time
…functional and design specifications. Build automated tests and test infrastructure to validate the…
Added just now
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Senior/Lead Software Engineer
Arista Networks
Vancouver, BC
- Full-time
Infrastructure functions related to distributed systems such as messaging, signalling, databases, and command line interface techniques.
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PCIe Senior/Lead Software Engineer
Arista Networks
Vancouver, BC
- Full-time
…builds the foundation for our networking ASICs and supporting infrastructure. PCIe software engineers write the code that manages high speed communication between hardware components in our…
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Senior/Lead Software Engineer, Layer1
Arista Networks
Vancouver, BC
- Full-time
As a Layer1 software engineer, you will get to work on software that manages the physical layer, where packets meet the outside world. Stable and reliable physical connectivity is critical…
Added 45 mins ago
M
Security Engineer II - Identity and Access Management
Marqeta
Remote, Canada
- Full-time
- Remote
We’re seeking an experienced Security Engineer II with a strong passion for Identity and Access Management (IAM) and expertise in cloud-native environments, particularly AWS. You'll build,…
Added 1 hour ago
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Senior Bridge Engineer
Jacobs
Ottawa, ON
- $160,000 to $210,000 USD / year
- Full-time
Jacobs' fast-growing team is currently delivering some of North America's most exciting transportation and infrastructure planning and design assignments and is the #2 Bridge firm as ranked…
Added 1 hour ago
Director, Water and Wastewater Infrastructure Management
Region of Waterloo
Kitchener, ON
Department: Water and Wastewater Infrastructure Management
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Senior Transmission Line Engineer
JobsMedia.io
Laval, QC
- Full-time
Our client, a recognized organization in the energy and electrical infrastructure sector, is seeking a Senior Transmission Line Engineer to strengthen its technical team. You will play a…
Added 2 hours ago
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DevOps Engineer
Kongsberg Geospatial Ltd
Ottawa, ON
- Full-time
Our team is growing and we’re looking for a DevOps Engineer to support the engineering development operations through driving the advancement of our technical processes, frameworks, and…
Added 2 hours ago
GC
Technician, MiningNew
Glencore Canada
Elkford, BC
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Reporting to the Senior Engineer Supervisor, Geotech the Mine technician will participate in a variety of tasks, such as: Drone photogrammetric surveys, field layout and interaction with…
Added 2 hours ago
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Senior Engineer, MaintenanceNew
Glencore Canada
Elkford, BC
- $123,000 to $145,000 CAD / year
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Added 3 hours ago
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Utilities Engineer – Interface Management (Intermediate)
SYSTRA Canada
Toronto, ON
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Added 3 hours ago
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Senior Structural Engineer - Buildings & Infrastructure
Grade Separation Systems
Kingston, ON
- Full-time
Art Engineering Inc. (AEI) is currently seeking a Senior Structural Engineer to join our growing team in Kingston, Ontario. AEI strongly encourages the applications of potential candidates…
Added 3 hours ago
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Senior Civil Engineer or Technologist - Water and Sewage Systems - Campbell River
JE Anderson & Associates
Campbell River, BC
- Full-time
J.E. Anderson & Associates is looking for a full-time Senior Civil Engineer or Technologist based in Campbell River, BC.
Added 3 hours ago
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Building Operator
CBRE
Vancouver, BC
- Full-time
Starts-up/shutdowns building infrastructure equipment
Added 3 hours ago
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Lead, AI Engineering
Bain & Company
Zurich, ON
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As an AI Engineer in AIS, you will build the technical core of these transformations and work as part of broader Bain consulting teams to move solutions from prototype to real adoption. The…
Added 3 hours ago
M
Dynamics 365 CRM Solution Engineer
Microsoft
Toronto, ON · Ottawa, ON · Vancouver, BC · Edmonton, AB · Calgary, AB
- Full-time
As a Dynamics 365 CRM Solution Engineer, you will lead AI transformation engagements with deep CRM domain expertise. Your role involves owning the technical win strategy and supporting AI…
Added 3 hours ago
IG
Facility Technician
Insight Global
Quebec, QC · Greater Quebec City Metropolitan Area
- $35 to $40 CAD / hour
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Added 3 hours ago
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Senior Software Engineer - Card Network Integration
Marqeta
Remote, Canada
- Full-time
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Sector Design Manager – ALTO project / Cadence
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Montreal, QC
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…a new railway line, increasing the capacity of the existing infrastructure, privatization of a…
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Hardware Engineer
Actalent
Ottawa, ON
- $55 to $65 CAD / hour
- Full-time
Interest in working on hardware platforms that support high-speed networking, fiber-optic communications, and cloud or AI computing infrastructure.
Added 4 hours ago
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Power Electronics Design Engineer
Actalent
Ottawa, ON
- $55 to $65 CAD / hour
- Full-time
Interest in working on hardware platforms that support high-speed networking, fiber-optic communications, and cloud or AI computing infrastructure.
Added 4 hours ago
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HEALTH & SAFETY OFFICER
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Long Sault, ON
- Full-time
For over 60 years, The Laframboise Group has been building more than just industrial infrastructure - we’ve been building trust, driving innovation, and shaping careers. We specialize in…
Added 4 hours ago
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Ingénieur(e) En Gestion De Données ML
Ericsson
Montreal, QC
- Full-time
Provisionner l'infrastructure via Terraform et CloudFormation
Added 4 hours ago
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Senior Specialist Engineer
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Canada
- Full-time
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Baseten

Software Engineer- Inference Performance

Montreal, QC, Canada

$180,000 to $360,000 USD / year · Full-time

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Job details

Pay: $180,000 to $360,000 USD / year
Job type: Full-time
Apply by: Nov 4, 2026
Posting language: English
Posted: Oct 5, 2026

Original job description

About Baseten

Baseten powers mission-critical inference for the world's most dynamic AI companies, like Cursor, Notion, OpenEvidence, Abridge, Clay, Gamma, and Writer. By uniting applied AI research, flexible infrastructure, and seamless developer tooling, we enable companies operating at the frontier of AI to bring cutting-edge models into production. We're growing quickly and recently raised our $1.5B Series F, led by Altimeter Capital, Conviction Partners, and Spark Capital. Join us and help build the platform engineers turn to ship AI products.

THE ROLE

We're looking for inference performance engineers who want to make the world's most demanding AI workloads run faster and more efficiently. You'll work across the stack, from the inference engine and runtime through scheduling, serving, and routing. Along the way you'll apply techniques like prefill/decode disaggregation, speculative decoding, and KV-cache management. You'll reason from first principles about where time and memory go, find what's holding performance back, and close the gap. Your work directly impacts how fast our customers' models run and how efficiently we serve them. This role is ideal for someone who thrives in a fast-paced startup environment and is eager to make significant contributions to the exciting field of LLM inference.

EXAMPLE INITIATIVES

You'll get to work on these types of projects as an Inference Performance engineer:

Agentic Kernels in Production
How we built the new fastest API for GLM-5.2
Live draft model training for speculative decoding
Making Kimi K3 Tokenization 18x faster
The Baseten Inference Stack
Driving model performance optimization

Responsibilities

Implement and productionize cutting-edge inference techniques, working deep in runtime internals. That includes quantization, speculative decoding, KV-cache reuse, chunked prefill, LoRA, guided generation for structured outputs, and custom scheduling and routing algorithms.
Profile and optimize inference end to end, from kernel launch overhead and memory layout up to request scheduling, prefill/decode disaggregation, and cache-aware routing. Run cross-layer investigations, such as tracing a tail-latency regression from request timing through routing and batching down to a kernel.
Turn performance into cost savings. Improve tokens per GPU-hour, raise utilization, and give customers and internal teams clear latency/throughput/cost tradeoffs.
Bring up and tune new model architectures on new hardware quickly, often in the same week they're released.
Build benchmarking frameworks that measure real-world performance across model architectures, batch sizes, sequence lengths, and hardware configurations.
Contribute upstream to open-source inference engines (vLLM, SGLang, TensorRT-LLM), and partner closely with model, infrastructure, and customer-facing teams to ship wins.

Requirements

Bachelor's, Master's, or Ph.D. degree in Computer Science, Engineering, Mathematics, or related field.
Experience with one or more general-purpose programming languages, such as Python or C++.
Familiarity with LLM optimization techniques (e.g., quantization, speculative decoding, continuous batching).
Strong familiarity with ML libraries, especially PyTorch, TensorRT, or TensorRT-LLM.
Demonstrated interest and experience in LLMs.
Deep understanding of GPU architecture.

NICE TO HAVE

Proficiency in enhancing the performance of software systems, particularly in the context of large language models (LLMs)
Contributed to vLLM, SGLang, TensorRT-LLM, or another inference engine.
Worked on large-scale distributed serving: autoscaling, load balancing, multi-region or multi-cloud capacity.
Written or optimized GPU kernels (CUDA, Triton, CUTLASS, or similar)
Worked on quantization (FP8/FP4, AWQ, GPTQ) or speculative decoding in production.
Deep understanding of software engineering principles and a proven track record of developing and deploying AI/ML inference solutions.

Benefits

Competitive compensation, including meaningful equity
(U.S. only) 100% coverage of medical, dental, and vision insurance for employee and dependents
Flexible PTO policy including company wide Winter Break (our offices are closed from Christmas Eve to New Year's Day!)
Paid parental leave
Fertility and family-building stipend through Carrot
(U.S. only) Company-facilitated 401(k)
Exposure to a variety of ML startups, offering unparalleled learning and networking opportunities.

Apply now to embark on a rewarding journey in shaping the future of AI! If you are a motivated individual with a passion for machine learning and a desire to be part of a collaborative and forward-thinking team, we would love to hear from you.

At Baseten, we are committed to fostering a diverse and inclusive workplace. We provide equal employment opportunities to all employees and applicants without regard to race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status.

We are an Equal Opportunity Employer and will consider qualified applicants with criminal histories in a manner consistent with applicable law (by example, the requirements of the San Francisco Fair Chance Ordinance, where applicable).

Compensation Range: $180K - $360K

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More about this job

Responsibilities

Implement and optimize production LLM inference across runtimes, kernels, scheduling, serving, and routing, using techniques such as quantization, speculative decoding, and KV-cache management. Improve latency, throughput, GPU utilization, and cost; benchmark new models and hardware; and contribute to open-source inference engines while collaborating across teams.

Requirements

A bachelor's, master's, or Ph.D. degree in computer science, engineering, mathematics, or a related field is required, along with experience in a general-purpose language such as Python or C++. Candidates should have LLM optimization experience or familiarity, strong knowledge of ML libraries such as PyTorch or TensorRT, demonstrated interest and experience in LLMs, and a deep understanding of GPU architecture.

Skills

LLM Inference Optimization
Python
C++
PyTorch
TensorRT
GPU Architecture
Quantization
Speculative Decoding
Continuous Batching
KV-Cache Management
Performance Profiling
GPU Kernel Optimization
Distributed Model Serving
Benchmarking
Scheduling and Routing
Inference Engine Development

Benefits

Competitive Compensation
Equity
Medical Insurance
Dental Insurance
Vision Insurance
Flexible Paid Time Off
Company-Wide Winter Break
Paid Parental Leave
Fertility and Family-Building Stipend
401(k)
Learning and Networking Opportunities

Visa sponsorship

Not detected in the job text

Keywords

LLM Inference
Inference Performance
Python
C++
PyTorch
TensorRT
TensorRT-LLM
vLLM
SGLang
CUDA
Triton
CUTLASS
GPU Architecture
Quantization
FP8
FP4
AWQ
GPTQ
Speculative Decoding
Continuous Batching
KV-Cache
Chunked Prefill
LoRA
Guided Generation
Prefill/Decode Disaggregation
Distributed Serving
Autoscaling
Load Balancing
Benchmarking
Performance Optimization

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