Jobs in Canada

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Added 23 mins ago
Frontend Engineer
Jobright.ai
Canada
Full-time
Jobright is a personal AI job search agent that simplifies the job search process and helps users reach better job outcomes. The Frontend Engineer builds accessible, reliable web interfaces…
Added 56 mins ago
Senior Fire Engineer
Hatch
Mississauga, ON
Hatch is seeking an experienced Senior Fire Engineer to join our growing Fire Safety team. In this role, you will provide technical leadership and project delivery expertise across a…
Added 1 hour ago
Machine Learning Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search. They are seeking an Early Career Machine Learning Engineer to design, build, and maintain scalable…
Added 1 hour ago
Machine Learning Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search. They are seeking an Early Career Machine Learning Engineer to design, build, and maintain scalable…
Added 1 hour ago
Golang Engineer
Jobright.ai
Canada
Full-time
Jobright is a personal AI job search agent that simplifies job searching and helps users reach better job outcomes. The Golang Engineer develops and maintains Go services, APIs, database…
Added 1 hour ago
Java Engineer
Jobright.ai
Canada
Full-time
Jobright is a personal AI job search agent that simplifies the job search process and helps users reach better job outcomes. The Java Engineer develops and maintains backend services, APIs,…
Added 1 hour ago
Data Engineer (Early Career) (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent transforming the job search process. They are seeking an early-career Data Engineer to design and build data pipelines, ensuring data quality…
Added 1 hour ago
DevOps Engineer, New Grad
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search from solo, time-consuming efforts to a fast, expert-guided journey, simplifying every job search step…
Added 1 hour ago
Cloud Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search. They are seeking a Cloud Engineer to provision and manage cloud infrastructure, build CI/CD…
Added 1 hour ago
AI Engineer, Entry Level (Canada)
Jobright.ai
Canada
Full-time
Jobright is a rapidly growing AI job search platform in the U.S. that is dedicated to transforming the job search experience. They are seeking an entry-level AI Engineer to build and refine…
Added 1 hour ago
Marketing Engineer & Director of AEO
Equiniti
Toronto, ON
Full-time
We are looking for a Marketing Engineer & Director of AEO to own how our brand is discovered, understood, cited, and recommended across search engines, answer engines, AI assistants, and…
Added 1 hour ago
Senior/Lead Engineer - Agentic AI Development
FICO
Canada
Full-time
…person on every change. We call that environment the harness (Agent = Model + Harness). As a Senior Harness Engineer you'll independently own whole harness subsystems, set the standards…
Added 1 hour ago
Prompt Engineer - Early Career (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent transforming the job search process. They are seeking an early-career Prompt Engineer to craft and evaluate prompts that enhance the…
Added 1 hour ago
Cybersecurity Engineer, Entry Level (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search from solo, time-consuming efforts to a fast, expert-guided journey, simplifying every job search step…
Added 1 hour ago
Senior AI Engineer
Tekgence Inc
Toronto, ON
Contract
Experience with the Model Context Protocol (MCP), building tool or resource servers and clients, and with agent-to-agent (A2A) interoperability.
Added 1 hour ago
Staff Platform Engineer - Materia AI
Thomson Reuters
Toronto, ON
Full-time
Experience with AI-driven systems, agent-based architectures, LLM evaluation tools, and AI APIs from providers like OpenAI and Anthropic.
Added 2 hours ago
Offensive Security Engineer
Epsilon Solutions Ltd.
Toronto, ON
Contract
10+ years hands-on experience across software engineering, offensive security, and defensive security at a principal engineer level, with demonstrated personal contributions to production…
Added 2 hours ago
Senior Business Systems Engineer - Integrations & AI
Lyft
Toronto, ON
2+ years of experience with RAG (Retrieval Augmented Generation), vector databases, MCP and agent frameworks such LangChain, LangSmith or similar technologies
Added 2 hours ago
Observability Engineer (KUBERNETES & CONTAINERS, GITOPS & AUTOMATION, QUERY LANGUAGES, CLOUD & INFRASTRUCTURE)
Apptoza Inc.
Toronto, ON
Contract
We are seeking an experienced Observability Engineer to join our Enterprise Kubernetes Platform team at a leading financial services organization. You'll own the complete observability…
Added 3 hours ago
Senior Software Engineer, Internal Tools
Tubi - Canada
Toronto, ON
Make our AI systems dependable in production: evaluation harnesses, human approval steps before an agent acts, retries that handle a model returning something unexpected, and cost tracking…
Added 3 hours ago
AI Engineer, Agent Product (Full-time/Part-time) (Canada)
Jobright.ai
Canada
Full-time · Part-time
Hands-on experience using and deploying AI agents, such as: Claude Code, Codex, ClawdBot, OpenCode, or similar agent frameworks/tools
Added 4 hours ago
QA Engineer (Early Career) (Canada)
Jobright.ai
Canada
Full-time
Jobright is your personal AI job search agent that transforms the way you do job search from solo, time-consuming efforts to a fast, expert-guided journey, simplifying every job search step…
Added 4 hours ago
AI Engineer, Mid Level
Jobright.ai
Canada
Full-time
Jobright is a personal AI job search agent that simplifies job searching and helps users find better job outcomes. The Mid-Level AI Engineer designs, builds, evaluates, deploys, and…
Added 4 hours ago
Senior AI Engineer
CI Financial
Toronto, ON
Full-time
CI Financial is seeking an experienced and technically strong Senior AI Engineer to join our Data, AI & Analytics (DNA) team. This role focuses on the applied use of Generative AI and…
Added 5 hours ago
Founding Engineer, Generalist
Journify Learning
Vancouver, BC
Full-time
EdTech, K-12, or special education experience

FICO

Senior/Lead Engineer - Agentic AI Development

Canada

Job type: Full-time
Posting language: English
Posted: Sep 21, 2026

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Original job description

The Opportunity

Come join our engineering team in a hands-on technical role at the heart of a new discipline: Harness Engineering. As AI coding agents take on more of the software lifecycle, the hard part is no longer writing code - agents generate it faster than humans can review it, so the bottleneck shifts to verification and trust. Harness Engineering exists to break that bottleneck: engineering the environment that steers agents toward correct, maintainable, well-architected output so that quality is enforced by the system, not re-audited by a person on every change. We call that environment the harness (Agent = Model + Harness). As a Senior Harness Engineer you'll independently own whole harness subsystems, set the standards other engineers build to, and be involved in the end-to-end lifecycle of turning raw model capability into production-grade engineering.

What You'll Contribute

Design, build, deploy, and support core components of the harness - the guides, feedback loops, guardrails, and shared context that turn raw model capability into production-grade engineering. This is a hands-on role focused on systems and leverage, not hand-writing application code.
Own and evolve feedforward guides - agent instruction files, reusable skills, architectural rules, reference docs, and codemods - and drive team-wide standardization so agents get it right the first time.
Build feedback sensors - custom linters, static analysis, structural and architecture-fitness tests, verification loops, and LLM-as-judge reviewers - that catch issues automatically before they reach human reviewers.
Own quality gating and release criteria for agent-produced work, defining authority boundaries for what agents may merge unaided and the escalation rules for what must route to a human.
Establish LLM testing infrastructure and evaluation approaches that ensure AI-generated output meets quality and safety thresholds; apply consumer/contract testing (e.g. Pact) where service integration reliability matters.
Run the steering loop - when an agent repeats a mistake, engineer a control so it can't happen again - and treat repository knowledge (docs, specs, context) as the system of record, fighting drift with continuous garbage collection.
Decide where each control runs in the path to production - fast checks pre-commit, more expensive checks post-integration, and continuous sensors that scan for drift outside the change lifecycle - keeping quality as far left as is economical.
Improve observability into agent work and track the measures that matter - cost per merged PR, time-to-merge for agent-assisted PRs, review velocity relative to PR size, defect escape rate, and agent-PR survival rate - using them to decide where to invest next.
Partner with product and platform teams to turn specifications and acceptance criteria into enforceable controls.
Serve as a source of technical expertise and mentor engineers across teams in harness practices and the effective, responsible use of AI tools.

What We're Seeking

Seasoned software engineer with experience in large, complex codebases and a strong foundation in architecture and design; you care deeply about testing and maintainability.
Hands-on experience with AI coding agents (e.g. Claude Code, Codex, or similar) and a well-developed feel for where they succeed and fail.
Proven ability to build engineering tooling across a modern stack - linters and static analysis, CI/CD pipelines, containerized build/test environments, and instrumentation/observability - plus familiarity with agent instruction conventions such as AGENTS.md.
Experience with spec-driven development, context engineering, agent orchestration, fitness functions, and developer-platform work.
A systems mindset - you'd rather fix the environment than fix one output - and the ability to encode "what good looks like" into mechanical, repeatable rules.
Judgement about when to reach for deterministic, computational controls (type checkers, linters, structural/architecture-fitness tests) versus inferential, LLM-based ones (AI code review, LLM-as-judge) - and an understanding of the cost, speed, and reliability trade-offs between them.
Experience owning quality-gating processes and defining release criteria to ensure engineering standards are consistently met.
Working knowledge of the security surface unique to autonomous agents - prompt injection, tool/permission scoping, sandboxed execution, and audit trails for agent actions - and how to design least-privilege guardrails around them.
Experience with consumer/contract testing approaches (e.g. Pact) to validate service integrations across distributed systems.
Excellent communication skills; able to articulate design with architects and drive standards across teams.
Bachelor's/Master's in Computer Science or related disciplines, or relevant experience in software architecture, design, development, and testing.

About US

FICO is a leading analytics and decision management company that empowers businesses and individuals around the world with data-driven insights. Known for pioneering the FICO® Score, a standard in consumer credit risk assessment, FICO combines advanced analytics, machine learning, and sophisticated algorithms to drive smarter, faster decisions across industries. From financial services to retail, insurance, and healthcare, FICO's innovative solutions help organizations make precise decisions, reduce risk, and enhance customer experiences. With a strong commitment to ethical use of AI and data, FICO is dedicated to improving financial access and inclusivity, fostering trust, and driving growth for a digitally evolving world.

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More about this job

Responsibilities

You will design and build the harness environment that steers AI coding agents toward producing high-quality, maintainable, and secure software. This involves creating feedback loops, guardrails, and automated testing infrastructure to ensure agent-generated code meets production standards.

Requirements

The ideal candidate is a seasoned software engineer with extensive experience in complex codebases, architecture, and modern engineering tooling. You must have hands-on experience with AI coding agents and a strong understanding of the trade-offs between deterministic and inferential quality controls.

Skills

Agentic AI
Software Architecture
CI/CD Pipelines
Static Analysis
LLM Testing
System Design
Quality Gating
Observability
Contract Testing
Python
Containerization
Security Guardrails
Technical Mentorship
Spec-driven Development
Code Review Automation

Visa sponsorship

Not detected in the job text

Keywords

Agentic AI
Harness Engineering
Software Lifecycle
LLM-as-judge
Static Analysis
CI/CD
Pact
Containerization
Observability
Prompt Injection
Least-privilege
Architecture-fitness tests
Codemods
Feedback loops
Quality gating
Release criteria
Technical leadership
System design
Data-driven insights
Machine learning
Algorithms
Analytics
Software development
Engineering standards
Distributed systems

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