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Added 1 min ago
LC
Senior Engineer, Application Security
Lightspeed Commerce, Inc.
Remote, Canada
- Full-time
- Remote
As a Senior Application Security Engineer, you will serve as a foundational anchor on the AppSec team, leading our strategic shift hard-left toward developer-embedded security and Secure by…
Added 1 min ago
EG
Intermediate / Senior Groundwater Modeller
Egis Group
Mississauga, ON
- $90,000 to $140,000 CAD / year
- Full-time
We are seeking an experienced and talented Intermediate / Senior Groundwater Modeller to join our team. The ideal candidate will be involved in a variety of projects that have a…
Added 1 min ago
EG
Junior Project Engineer
Egis Group
Calgary, AB
- $70,000 to $80,000 CAD / year
- Full-time
Accompany and assist intermediate and senior engineers to gather and interpret field data;
Added 15 mins ago
I
QA Automation Engineer - ETL/Database
Infoya
Toronto, ON
- $100,000 to $115,000 CAD / year
- Full-time
About the Job: Infoya is looking for an experienced Senior Automation Engineer with strong expertise in test automation , database testing, ETL validation, and data pipeline testing. The…
Added 15 mins ago
E
Senior QE + AI Engineer
enableIT
Toronto, ON
- $75 to $80 CAD / hour
- Contract
We are seeking a Senior QE + AI Engineer with around 8 years of experience in Quality Engineering, Test Automation, or Software Engineering. The role focuses on building AI-powered…
Added 15 mins ago
I
QA Automation Engineer - Database & ETL Testing
Infoya
Toronto, ON
- $100,000 to $115,000 CAD / year
- Full-time
About the Job: Infoya is looking for an experienced Senior Automation Engineer with strong expertise in test automation , database testing, ETL validation, and data pipeline testing. The…
Added 15 mins ago
X
Senior Network Engineer
Xanadu
Toronto, ON
- $95,000 to $115,000 CAD / year
- Full-time
As a Senior Network Engineer, you will own, secure, and modernize our enterprise network infrastructure across a multi-vendor environment. In this role, you will bridge core network…
Added 15 mins ago
W
Principal, Energy and Carbon Solutions
WalterFedy
Hamilton, ON
- Full-time
…our ECS (Energy and Carbon Solutions) team. The role provides senior technical and practice leadership for ECS work, with accountability for the quality, consistency, and commercial…
Added 15 mins ago
HO
Structural Design Engineer (Intermediate)
Hydro One
Toronto, ON
- Full-time
Assist senior engineers on projects involving greater complexity and provide technical guidance to supporting staff as required.
Added 31 mins ago
C
Ping Engineer: IT Support Analyst
Cyderes
Canada
- Contract
We are seeking an experienced Senior IT Support Analyst with strong hands-on expertise in PingFederate and Ping Identity technologies. This role will focus on supporting, administering, and…
Added 43 mins ago
HS
Senior Software Engineer, Dentrix Ascend
Henry Schein One UK
Surrey, BC
- Full-time
We are looking for a Senior Software Engineer to join our True North team and help build and evolve Dentrix Ascend for the US market.
Added 43 mins ago
ZT
Senior Electrical Engineer
Zebra Technologies
Mississauga, ON
- Full-time
We are seeking an Advanced Electrical Engineer to join our Hardware Platform Engineering team. In this role, your primary focus will be assisting core hardware platform development and…
Added 43 mins ago
RE
Technical Project Manager
Randstad Enterprise
Montreal, QC
- Contract
This is a senior individual-contributor role for someone with strong content strategy or knowledge-management foundations and practical experience with enterprise search, generative AI or…
Added 45 mins ago
FI
Senior Simulation Scientist
Fulfillment IQ
Remote, Canada
- Full-time
- Remote
Job Title: Senior Supply Chain Simulation Scientist
Added 45 mins ago
I
QA Automation Engineer - ETL/Database
INFOYA
Toronto, ON
- $100,000 to $115,000 CAD / year
- Full-time
experienced Senior Automation Engineer with strong expertise
Added 1 hour ago
MI
Senior Buyer
Magna International
Toronto, ON
- Full-time
The Senior Buyer is responsible for the procurement and management of purchased and directed-buy components, capital equipment, tooling & facility services. Additionally, the Buyer may need…
Added 2 hours ago
1
Applied AI Engineer - Evaluation & Reliability
15Rock
Toronto, ON · Greater Toronto Area, Canada
- Full-time
Applied AI Engineer - Evaluation & ReliabilityThe problem you'd own
Added 3 hours ago
A
Principal Engineer - Open Source Data Platform (ODP)
Acceldata
Kitchener, ON
- Full-time
We are seeking a Principal Engineer with at least 14 years of experience to serve as a technical visionary and thought leader for Acceldata's Open Data Platform (ODP). In this role, you…
Added 5 hours ago
KI
Technical Marketing Engineer
Klara Inc
Hamilton, ON
- Full-time
…depend on auditable, long-lived, sovereign systems. Our team is senior, globally distributed, and operates with a high degree of…
Added 5 hours ago
K
Senior Software Engineer – DevTest / QA Automation
Kaseya
Toronto, ON
- Full-time
Kaseya is seeking a Senior Software Engineer – DevTest / QA Automation to design, build, and maintain robust automated testing capabilities across enterprise software platforms.
Added 5 hours ago
MA
Senior AI Engineer
Meeru AI Inc
Remote, Canada
- Other
- Remote
We are looking for a Senior AI Engineer to build the AI and intelligence layer - and help uphold the discipline that keeps it honest. Our output sits adjacent to externally reported…
Added 6 hours ago
A
Senior Mechanical Test Engineer
Actalent
Vancouver, BC
- $48 to $57 CAD / hour
- Contract
The Senior Mechanical Test Engineer will support new product development by leading and executing design verification activities for complex mechanical and electromechanical products. This…
Added 6 hours ago
RT
Senior Data Architect
Ripotek Technologies Inc.
Calgary, AB
- Full-time
As a Senior Data Architect, you'll lead the design and implementation of modern data platforms for enterprise clients across Energy, Financial Services, and Public Sector. You'll work…
Added 6 hours ago
RT
Azure Solutions Consultant
Ripotek Technologies Inc.
Calgary, AB
- Full-time
Pursue Microsoft certifications (Azure Data Engineer, Solutions Architect)
Added 8 hours ago
GC
Engineering Sales Associate – Custom Air Handling Units
GLP Canada
Mississauga, ON
- Full-time
Technical Sales Engineer – Custom Air Handling Units

15Rock

Applied AI Engineer - Evaluation & Reliability

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Apr 7, 2027
Posting language: English
Posted: Oct 9, 2026

Original job description

Applied AI Engineer - Evaluation & ReliabilityThe problem you'd own

15Rock is a financial intelligence firm. Our research goes in front of institutional investors and gets read line by line - by people looking for the one number that doesn't hold up. Every figure has to reconcile across every table and sentence; every claim has to trace to a live source.

We build that research with a multi-agent pipeline on large language models. LLMs write well and count badly: left alone, they produce clean prose that contradicts the table three paragraphs up. Our answer isn't "prompt harder." It's to route every number through deterministic computation and gate every report behind checks that pass or fail - never a model grading its own work. You'd build that layer.

What you'll build

Deterministic evaluation gates that block a report when a defect is present - measured against thresholds set before the run, not a gut feel.
A fact-reconciliation layer that verifies a figure agrees with itself everywhere it appears.
Citation-integrity checks: every reference resolves, every quote is real, every source is live.
Golden-set and regression harnesses that catch quality drift before it ships.
The path from research to production: hardening a validated approach into the pipeline, behind CI, with the traces to prove it works.

What we're looking for

You've shipped LLM systems to production - not demos - where being wrong had a cost.
You've built the evaluations that kept them honest: you think in precision and recall, and you define "good" before you measure it.
Strong Python; you can own backend services and data pipelines yourself.
You reason about the numbers, not just the tokens - enough quantitative or financial literacy to know when a figure is wrong, or the appetite to learn it fast.
Self-directing. You'd rather write a one-page memo than wait for a ticket.

Bonus: model-risk or evaluation-infrastructure work in a regulated setting; LangGraph, DuckDB, CI you owned; a finance or quantitative background.

This role is not

Prompt engineering, a pure research seat, or a place where "the model said so" is an answer.

How we work

A small, senior team with direct access to the founder and research lead. Async by default - we meet on blockers, not to read status aloud. We run on hypotheses and measurable outcomes.

Details

Downtown Toronto, on-site / hybrid. Must be authorized to work in Canada. Early-stage financial intelligence firm, recognized by the Globe and Mail Changemaker Award and selected for Google for Startups.

To Apply: send a short note and something you've built where correctness mattered to Careers@15Rock.com . Tell us about a check you built that caught something a person would have missed.

15Rock is an equal-opportunity employer.

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More about this job

Responsibilities

Build deterministic evaluation gates that block reports with defects, and develop checks for fact consistency, citation validity, and source integrity. Create golden-set and regression testing harnesses, then harden validated approaches for production with CI and traceable evidence.

Requirements

Candidates should have shipped production LLM systems where errors carried real costs and built evaluations using defined quality measures such as precision and recall. Strong Python skills and the ability to own backend services and data pipelines are required, along with quantitative or financial literacy or the ability to learn it quickly.

Skills

Python
LLM Production Systems
Evaluation Design
Precision and Recall
Deterministic Computation
Fact Reconciliation
Citation Integrity
Regression Testing
Backend Services
Data Pipelines
Quantitative Analysis
Financial Literacy
CI
LangGraph
DuckDB

Visa sponsorship

Not detected in the job text

Keywords

Applied AI
Large Language Models
Multi-Agent Pipeline
Python
Deterministic Computation
Evaluation Gates
Precision
Recall
Fact Reconciliation
Citation Integrity
Golden Sets
Regression Testing
Backend Services
Data Pipelines
Production Hardening
Continuous Integration
LangGraph
DuckDB
Model Risk
Evaluation Infrastructure
Financial Intelligence
Quantitative Analysis
Institutional Investors
Source Verification

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