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Added 2 months ago
Project Manager, Marine Vapour Control System Upgrade Program (Contract)
Trans Mountain
Burnaby, BC
…and Indigenous Engagement, Supply Chain Management, Project Controls, consultants, contractors, and equipment suppliers to validate system constraints and develop integrated…
Added 2 months ago
Operator, Production
Gates Corporation
Brantford, ON
…transmission solutions. We push the boundaries of material science to engineer solutions that continually exceed customer…
Added 2 months ago
Senior Project Engineer, Marine Vapour Control System Upgrade Program (Contract)
Trans Mountain
Calgary, AB
…values-driven individual to join our dynamic team as a Senior Project Engineer, Marine Vapour Control System Upgrade Program (MVCSUP) & Westridge Marine Terminal Coordination. In this…
Added 2 months ago
Project Manager, Jet Fuel (Contract)
Trans Mountain
Calgary, AB
…Stakeholder and Indigenous Engagement, Supply Chain, Project Controls, consultants, contractors, and equipment…
Added 2 months ago
HL
Process Optimization Manager
High Liner Foods
Lunenburg, NS
- Full-time
Utilize engineering principles to identify, analyze, and design cost effective food processing technology and improve the current manufacturing systems with operations.
Added 2 months ago
NS
Lead AI Back-End Engineer
Network Solutions
Canada
- Full-time
The impact you’ll make as a Lead AI Back-End Engineer
Added 2 months ago
ND
Lead AI Back-End Engineer
Newfold Digital
Canada
- Full-time
The impact you’ll make as a Lead AI Back-End Engineer
Added 2 months ago
R
Stage - Hiver 2027 - Service Technique des Accessoires Moteurs / Internship - Winter 2027 - Engine Controls & Accessories Technical Services
RTX
Longueuil, QC
- Full-time
Added 2 months ago
G
Project Engineer Lead
Globotech
Kincardine, ON
- $80,000 to $110,000 CAD / year
Analyze and interpret all project related documents (electrical, mechanical, architectural, etc.) to accurately quantify all controls and instrumentation scope items provided in bid package
Added 2 months ago
KA
*HIRING BONUS* Licensed Aircraft Maintenance Engineer- Mechanics
KF Aerospace
ON
- $38.03 to $45.65 CAD / hour
- Full-time
Inspection and assessment of aircraft components and airframe including engines, landing gear, flight controls, hydraulic systems, and pneumatic systems to locate defects or other problems…
Added 2 months ago
KA
*HIRING BONUS* Licensed Aircraft Maintenance Engineer- Avionics
KF Aerospace
ON
- $38.03 to $45.65 CAD / hour
- Full-time
Autoflight, navigation, communication, instrumentation, electrical/lighting and general systems (hydraulics, pneumatics, flight controls, etc.)
Added 2 months ago
Senior/Staff Engineer, Pharmaceutical Delivery
AbCellera
Vancouver, BC
We are looking for a Senior/Staff Engineer, Pharmaceutical Delivery to become a key technical driver for device development across our combination product programs, including pre-filled…
Added 2 months ago
AW
Intermediate Electrical Engineer
AWC Water Solutions
Calgary, AB
- $89,093 to $113,391 CAD / year
- Full-time
Strong understanding of engineering first principles utilized in the design of electrical and controls systems is an asset
Added 2 months ago
AW
Intermediate Electrical Engineer
AWC Water Solutions
Langley (District), BC · City of Langley, BC
- $89,093 to $113,391 CAD / year
- Full-time
Strong understanding of engineering first principles utilized in the design of electrical and controls systems is an asset
Added 2 months ago
P
SOC Automation Engineer
Paymentus
Richmond Hill, ON
- Full-time
We're hiring a SOC Automation Engineer! Are you a developer with a SecOps mindset? We are looking for an automation expert to build complex SOAR playbooks, integrate AI into our workflows,…
Added 2 months ago
Controls & Robotics Engineer - Body Shop or GA Experience
Volcanix Automation Inc.
Vaughan, ON
VOLCANIX AUTOMATION is seeking experienced Controls & Robotics Engineers with a strong BIW (Body-in-White) or GA (General Assembly) background to support automotive projects across North…
Added 1 month ago
Project Engineer - Gates
ANDRITZ AG
Boucherville, QC
The Project Engineer – Gates bridges the boundaries between engineering and project management, leading the technical activities as a whole with the Engineering, Procurement and…
Added 2 months ago
Project Engineer Specialist
ANDRITZ AG
Peterborough, ON
Ensuring effective communication/coordination between the engineering, construction, and project controls groups;
Added 4 months ago
T
Automation Controls Engineer
Tesla
Markham, ON
- Full-time
4+ years of experience as a hands-on Controls Engineer or Applications Engineer working on automation and, or electromechanical systems
Added 2 months ago
RV
Sr. Manufacturing Quality Assurance Specialist
Ross Video
Iroquois, ON
- Full-time
…other stakeholders to develop, implement, and sustain quality systems, processes, procedures, and controls that improve performance, ensure compliance, reduce risk, and lower the cost of…
Added 2 months ago
CN
Operating Engineer, Class 3
Canadian Nuclear Laboratories
Chalk River, ON
- Full-time
Are you looking for a role that will challenge you? Can you see yourself as an Operating Engineer, Class 3, ensuring the safe and efficient operation of critical utility, power generation,…
Added 2 months ago
A
Senior Project Engineer (Minerals & Metals) - Toronto
Ausenco
Burlington, ON
- Full-time
…and technical coordination in the field. The Senior Project Engineer will act as a critical link between engineering, procurement, construction, commissioning, project controls,…
Added 2 months ago
Software Engineer, Intern (Summer or Winter)
Stripe
Toronto, ON
…generalized anomaly detection, building more approachable fraud controls, creating safer payouts, and developing user-facing solutions that prevent costly pricing mistakes and make merchant…
Added 2 months ago
TG
Technical Architect, Google
TMX Group
Toronto, ON
- Full-time
Act as the principal designer and engineer for the Google Workspace tenant, ensuring organizational units (OUs), groups, and access controls are optimally structured for scale and security.
Added 2 months ago
PR
Senior/Principal LLM & Evals Engineer
Perennial Resources International
Toronto, ON
- $160,000 to $180,000 USD / year
- Full-time
We are seeking an experienced GenAI engineer with deep expertise in LLM evaluation, production-grade AI systems, and financial services. The successful candidate will design and improve…

Newfold Digital

Lead AI Back-End Engineer

Canada

Full-time

Apply About employer

Applications open in a new tab.

Job details

Job type: Full-time
Posting language: English
Posted: Aug 27, 2026

Original job description

At Network Solutions, we’ve been trusted for decades to help people get online and stay ahead. We’ve been here since the beginning of the internet, and we’re still building for what comes next.

As the original digital identity authority, we help secure domain names, protect brands, and safeguard the infrastructure businesses rely on. We empower our customers to own and manage the assets that define them online, while delivering enterprise-grade security to protect against virtual threats. Our team leverages modern, AI-accelerated tools to streamline how businesses manage their digital presence, making the most of our decades of experience.

The Network Solutions team is here to help online businesses protect what’s theirs and build for tomorrow. That’s why millions trust us to protect their domains, brands, and websites every day.

The impact you’ll make as a Lead AI Back-End Engineer

• Set the technical architecture for our agent powered platform, choosing the right mix of LLMs, retrieval technologies, agent frameworks, and microservice patterns to meet reliability, cost, quality, and latency targets.

• Drive architecture for high throughput APIs built with .NET, C#, Python 3.11+, FastAPI async, SQLModel, and Semantic Kernel, from design documents through production rollout.

• Lead multi agent orchestration across handoff, sequential, parallel, and supervisor patterns, combining knowledge grounded and tool calling agents across OpenAI GPT 5.6 Sol, Terra and Luna, Google Gemini 3.7 Flash, Anthropic Claude Sonnet 5 and Opus 5, xAI Grok 4.6, and future model providers.

• Guide teams implementing Retrieval Augmented Generation on Azure AI Search, pgvector, Chroma, and equivalent vector and hybrid retrieval platforms, ensuring index quality, filtering, evaluation, and safety controls.

• Own end to end CI/CD pipelines using Bitbucket Pipelines, Jenkins, or similar platforms, including linting, type checking, security scanning, testing, containerization, and deployment.

• Mentor and hire engineers and adopt AI coding agents such as Cursor and Claude Code as engineering force multipliers while maintaining strong code quality, security, and review standards.

• Champion observability and FinOps for LLM workloads using structured JSON logging, OpenTelemetry tracing, Langfuse, evaluation frameworks, and cost dashboards, keeping latency and cost per request within defined SLOs.

Partner with Product and Security to translate business goals, compliance requirements, emerging AI capabilities, and user feedback into a pragmatic technical roadmap.

Must have experience

• 7+ years building and scaling production backend systems, including 2+ years in a technical lead, staff, principal, or equivalent role.

• Expert in REST API design and development using Python FastAPI or .NET C# APIs, with strong experience in dependency injection, middleware, profiling, performance optimization, and distributed systems.

• Hands on leadership experience with Semantic Kernel or equivalent agent and LLM frameworks, including production agent orchestration, tool calling, structured outputs, and multi step workflows.

• Delivered at least one production RAG system or pipeline using a vector or hybrid search platform such as Azure AI Search, pgvector, Chroma, or equivalent, with measurable latency and quality KPIs.

• Deep PostgreSQL expertise plus SQLModel, SQLAlchemy 2, and Alembic migrations at scale.

• Proven track record integrating multiple frontier and cost optimized model providers, such as OpenAI GPT 5.6, Gemini 3.x, Claude 5, Grok 4.x, or equivalent, including model routing, structured output, reasoning, tool calling, and fallback strategies.

• Fluency with Poetry, Docker, GitHub Actions, Azure DevOps, Jenkins, or Argo, along with infrastructure as code fundamentals and blue green or canary release strategies.

Strong people leadership through code reviews, architectural guidance, technical mentoring, roadmap planning, hiring, and cross team communication.

Nice to have

Experience with message queue and event driven architectures using RabbitMQ, Kafka, Azure Service Bus, or equivalent.

Experience with GPU inference fleets, self hosted open weight models, or serverless model hosting.

• Experience with model gateways, intelligent model routing, MCP, agent interoperability, prompt caching, and LLM cost optimization.

Familiarity with automatic evaluation pipelines, agent evaluations, LLM as judge techniques, safety guardrails, and cost aware prompt and context engineering.

Why join the Newfold AI team?

You’ll steer the core intelligence behind our AI products, building an LLM agnostic, agent driven platform that serves millions of users while meeting enterprise grade standards for reliability, security, governance, and economics. If you thrive on significant technical challenges, enjoy mentoring strong engineers, and want the opportunity to shape both architecture and engineering culture, we’d love to meet you.

Why you’ll love us.

Work-life balance. Our work is thrilling and meaningful, but we know balance is key to living well.
We celebrate one another’s differences. We’re proud of our culture of diversity and inclusion. We foster a culture of belonging. Our company and customers benefit when employees bring their authentic selves to work. We have programs that bring us together on important issues and provide learning and development opportunities for all employees. We have 20 + affinity groups where you can network and connect with Newfolders globally.
We care about you. We are a family, and we care about you and your family’s physical and mental health by providing competitive HMO benefits – 175k MBL with one free dependent upon one year of service! We also give out Punctuality Bonus, Generous Vacation policy, and much more!
Where can we take you? We’re fans of helping our employees learn different aspects of the business, be challenged with new tasks, be mentored, and grow their careers. Unfold new possibilities with #teamnewfold!

#NetworkSolutions

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More about this job

Responsibilities

Set the technical architecture for an agent-powered platform and lead the development of high-throughput APIs using .NET and Python. Mentor engineers and manage the end-to-end CI/CD pipelines and observability for LLM workloads.

Requirements

Requires 7+ years of backend experience with at least 2 years in a leadership role and expertise in REST API design. Must have a proven track record of delivering production RAG systems and integrating multiple frontier LLM providers.

Skills

Python
.NET
C#
FastAPI
Semantic Kernel
LLM Orchestration
RAG
PostgreSQL
Azure AI Search
Docker
CI/CD
System Architecture
Vector Databases
API Design
Technical Leadership
FinOps

Benefits

HMO Benefits
Punctuality Bonus
Generous Vacation Policy
Learning And Development Opportunities

Visa sponsorship

Not detected in the job text

Keywords

AI
LLM
Backend Engineering
FastAPI
C#
.NET
Semantic Kernel
RAG
Azure AI Search
Pgvector
Chroma
PostgreSQL
SQLModel
SQLAlchemy
Alembic
OpenAI GPT
Google Gemini
Anthropic Claude
xAI Grok
Docker
Bitbucket Pipelines
Jenkins
GitHub Actions
Azure DevOps
Argo
OpenTelemetry
Langfuse
FinOps
Microservices
Vector Search

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Jobs in Canada

Project Manager, Marine Vapour Control System Upgrade Program (Contract)

Operator, Production

Senior Project Engineer, Marine Vapour Control System Upgrade Program (Contract)

Project Manager, Jet Fuel (Contract)

Process Optimization Manager

Lead AI Back-End Engineer

Lead AI Back-End Engineer

Stage - Hiver 2027 - Service Technique des Accessoires Moteurs / Internship - Winter 2027 - Engine Controls & Accessories Technical Services

Project Engineer Lead

HIRING BONUS Licensed Aircraft Maintenance Engineer- Mechanics

HIRING BONUS Licensed Aircraft Maintenance Engineer- Avionics

Senior/Staff Engineer, Pharmaceutical Delivery

Intermediate Electrical Engineer

Intermediate Electrical Engineer

SOC Automation Engineer

Controls & Robotics Engineer - Body Shop or GA Experience

Project Engineer - Gates

Project Engineer Specialist

Automation Controls Engineer

Sr. Manufacturing Quality Assurance Specialist

Operating Engineer, Class 3

Senior Project Engineer (Minerals & Metals) - Toronto

Software Engineer, Intern (Summer or Winter)

Technical Architect, Google

Senior/Principal LLM & Evals Engineer