Find work in Canada.

622,572 jobs across our Canadian network. How we count

Jobs in Canada

Email me new jobs Save this search

Added 3 months ago
IE
Integrated Systems Testing Coordinator
INVIRO Engineered Systems Ltd.
Toronto, ON · Scarborough, ON
- Full-time
Working knowledge of fire alarm panels, sprinkler/standpipe systems, emergency generators, smoke control/HVAC dampers, electromagnetic locks, elevator recall controls, and building…
Added 3 months ago
SI
IT Architect, Architecture & Analytics – Enterprise Analytics
Saputo Inc.
Montreal, QC · Saint-Laurent, QC
- Full-time
…high-performance data architectures, with a strong focus on integrating systems into a unified analytics…
Added 2 months ago
A
Senior Mechanical Engineer
AECOM
Burnaby, BC
- $110,000 to $145,000 CAD / year
- Full-time
Design HVAC Controls systems with integration into Building Management Systems and SCADA Systems.
Added 3 months ago
AF
Director of Transformation
Armstrong Fluid Technology
Toronto, ON
- Full-time
…brightest and most creative minds, driven by a shared mission to engineer the future and safeguard our…
Added 3 months ago
L
Electrical, Instrumentation, and Controls Engineer
Lanmark
Calgary, Alberta
- Full-time
Our ideal candidate will be an essential member of our Electrical, Instrumentation, and Controls (EIC) engineering team. This engineer will have strong knowledge of industrial processes in…
Added 3 months ago
B
Staff Software Engineer, Travel & Expense
Brex
Vancouver, British Columbia
- $240,000 to $285,000 CAD / year
- Full-time
…several engineering teams - expenses, travel, policy, and spend controls - that have to work as one system for customers. We're looking for a Staff Engineer who operates across all of them.…
Added 3 months ago
T
Principal AI Engineer - Tangerine
Tangerine
Toronto, Ontario
- Full-time
Design and implement secure, resilient, and compliant AI platforms that integrate with existing enterprise systems, ensuring alignment with risk, ethics, fairness, and regulatory frameworks
Added 3 months ago
IP
Senior Process Engineer
IPS-Integrated Project Services
Vaughan, Ontario
- Full-time
At IPS, we are global leaders in developing innovative solutions for the consulting, architecture, engineering, project controls, procurement, construction management, and CQV of…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Saskatoon, Saskatchewan
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Timmins, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
North Bay, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Mississauga, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Toronto, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Thunder Bay, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Vaughan, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Markham, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
WI
Senior Instrumentation & Controls Engineer, Resources
WSP in Canada
Hamilton, Ontario
- Full-time
…Ontario, Greater Toronto Area, or Saskatoon as a Senior I&C Engineer, you will support as a senior subject matter expert in the instrumentation and controls engineering for both new…
Added 3 months ago
Forward Deployed Agile Software Engineer
TribalScale
Toronto, ON
You will be expected to understand more than models and prompts. You will help design the systems around AI models: the harnesses, agent loops, state graphs, tools, context, evaluations,…
Added 2 months ago
AI and Data - Manager - AI Engineer
EY
Toronto, ON
Build AI governance and responsible AI controls for AI systems
Added 3 months ago
DC
Water Wastewater Engineer
Dillon Consulting Limited
Winnipeg, MB · Saint John, NB · Fredericton, NB · Halifax, NS
- Full-time
We are currently seeking a Water Wastewater Engineer to join our Water Wastewater team. Our team specializes in the strategy and technical execution of water, wastewater, and municipal…
Added 3 months ago
LB
Controls and Automation Specialist - Plant Controls Engineer
LP Building Solutions
Dawson Creek, British Columbia
- Full-time
…applies specific knowledge of automated and process control systems to manufacturing processes with minimal…
Added 3 months ago
SG
Lead Penetration Test Engineer
S&P Global
Toronto, Ontario
- $135,000 to $180,000 CAD / year
- Full-time
…users from modern security threats. Our mission is to safeguard systems and data by developing innovative solutions to the industry’s most complex security challenges. We are passionate…
Added 3 months ago
J
Senior Software Engineer, Applied AI (Netherlands)
Justworks
Toronto, ON
- €143,000 to €184,000 EUR / year
We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments…
Added 2 months ago
Senior Software Engineer, Applied AI (Spain)
Justworks
Toronto, ON
We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments…
Added 3 months ago
V
Senior Metallurgist
Vale
Long Harbour-Mount Arlington Heights, NL,CA
- Full-time
…the accuracy and integrity of accounting and quality control systems. The position monitors plant processes, material balances, and metals recoveries to identify deficiencies that may…

Justworks

Senior Software Engineer, Applied AI (Spain)

Toronto, ON, Canada

The base wage range for this position based in Spain is 111,000-143,000 EUR.

Apply About employer

Applications open in a new tab.

Job details

Pay: The base wage range for this position based in Spain is 111,000-143,000 EUR.
Experience: 5+ years of backend engineering experience building and operating production systems
Posting language: English
Posted: Aug 13, 2026

Original job description

Who We Are

At Justworks, you’ll enjoy a welcoming and casual environment, great benefits, wellness program offerings, company retreats, and the ability to interact with and learn from leaders in the startup community. We work hard and care about our most prized asset - our people.

We’re helping businesses get off the ground by enabling them to focus on running their business. We solve HR issues. We’re data-driven and never stop iterating. If you’d like to work in a supportive, entrepreneurial environment, are interested in building something meaningful and having fun while doing it, we’d love to hear from you.

We're united by shared goals and shared motivations at Justworks. These are best summed up in our company values, which are reflected in our product and in our team.

Our Values

If this sounds like you, you’ll fit right in.

Who You Are

You are self-driven and like to work with others to remove roadblocks. You are curious and love to explore and learn new technologies. You have demonstrated the ability to build, deploy, and maintain large-scale, complex applications. You care more about solutions and impacting the customer experience than using a particular tool or framework.

About the role:

You will join a small, highly autonomous cross-functional team to build AI agents that fundamentally transform how operations work at scale. Instead of writing bespoke software for every workflow, we are developing an agent platform that can read operational knowledge, reason about it in context, and execute tasks end-to-end. This approach allows us to scale complexity through knowledge and reasoning, rather than simply through code.

This is an opportunity to join a foundational team, which currently consists of fewer than five engineers. The work spans critical areas including LLM-powered agent design, robust backend service architecture, tool and integration development, and sophisticated knowledge infrastructure.

We are seeking a Senior Software Engineer with a strong passion for building AI-native systems in a product environment. The ideal candidate will be able to take ownership of large segments of the technology stack, make pragmatic technical decisions in ambiguous and emerging territory, and consistently ship high-quality, production-ready systems that our users rely on every day.

Responsibilities:

Design, build, and own core components of the agent platform, from the orchestration layer to the tool integrations connecting it to internal systems.
Build and evolve the capabilities layer: APIs, data access patterns, and service integrations for agents to execute operational workflows.
Architect the knowledge and memory infrastructure, allowing agents to retrieve the data and act across our systems.
Design and implement the trust and safety framework, including audit trails, human-in-the-loop controls, and guardrails for safe and auditable AI-driven operations.
Contribute to agent evaluation and testing infrastructure, defining how we measure accuracy, reliability, and regression across agent behaviors.
Partner directly with Operations to understand workflows, identify automation opportunities, and translate process knowledge into agent capabilities.
Mentor other engineers on the team as it grows.

About the candidate

You are comfortable in a fast-paced, early-stage environment. You demonstrate a "scrappy" and resourceful approach, proactively identifying solutions and unblocking yourself without needing a fully defined path.
You are pragmatic and balance quality with speed. You understand when to optimize for long-term durability and when to iterate quickly. You prioritize pragmatism over being overly precious about code, but never compromise on quality in a way that creates future issues.
You are product-minded. You look beyond the immediate task, seeking to understand the "why" behind the build and questioning whether it's the right product solution. You are comfortable contributing product thinking alongside engineering work.
You demonstrate a strong ownership mindset. You are proactive, identify gaps, and drive initiatives to completion without waiting for explicit instructions. When encountering issues or ambiguity, you address them directly.
You possess strong backend engineering fundamentals. You can confidently design, build, and operate production systems.
You are curious and eager to develop expertise in AI and LLMs. While deep research is not required, you are motivated to build practical, real-world products using these tools, specifically focusing on agent systems.

Qualifications

5+ years of backend engineering experience building and operating production systems
Hands-on experience with LLMs and AI agents (orchestration, RAG, tool/function calling, or similar)
Strong API design and system integration skills
Product-minded: questions requirements and contributes to product decisions, not just execution
Proven ownership of complex projects in ambiguous, early-stage environments

Technologies Used

Golang, Ruby on Rails, Javascript, Java, C#, Python, VueJS, MySQL, Kafka, AWS, Git, Memcache, Redis, ElasticSearch, Docker, Terraform, Kubernetes, CircleCI, DataDog

The base wage range for this position based in Spain is 111,000-143,000 EUR.

Actual compensation is based on multiple factors that are unique to each candidate, including and not limited to skill set, level of relevant experience, and specific work location. Salary ranges for positions based in other locations may differ based on the cost of labor in that location.

For more information about Justworks’ Total Reward Philosophy, including all of the perks and benefits we are proud to offer our team members, please visit Total Rewards @ Justworks.

Diversity At Justworks

Justworks is committed to maintaining a workplace where diversity of identity, culture, and life experience is the norm and is celebrated authentically and respected consistently. Diversity in our work, our people, and our product drives creativity and innovation, entrepreneurial leadership and integrity, competitiveness, and collaboration throughout our business and in the market. We depend on our differences to make our team stronger, our workplace more dynamic, and our product accessible to all of our customers.

We’re proud to be an equal opportunity employer open to all qualified applicants regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital or familial status, disability, pregnancy, gender identity or expression, veteran status, genetic information, or any other legally protected status. Justworks is fully dedicated to providing necessary support to candidates with disabilities who may require reasonable accommodations. We also provide reasonable accommodations to employees based on their sincerely held religious beliefs, as well as for other covered reasons consistent with applicable federal, state, and local laws. If you're in need of a reasonable accommodation, please reach out to us at accommodations@justworks.com. Your comfort and success matter to us, and we're here to ensure an inclusive experience.

Our DEIB Report

Apply About employer

More about this job

Responsibilities

Design, build, and own core components of the AI agent platform, including orchestration layers and tool integrations. Architect robust knowledge and memory infrastructure while implementing trust, safety, and evaluation frameworks for AI-driven operations.

Requirements

Requires 5+ years of backend engineering experience with a focus on building and operating production-ready systems. Candidates must have hands-on experience with LLMs, AI agents, and strong API design skills in an early-stage environment.

Skills

Golang
Ruby on Rails
Python
LLMs
AI agents
Backend engineering
API design
System integration
RAG
Orchestration
Kubernetes
AWS
Docker
Terraform
Data architecture
Product-minded

Benefits

Wellness program
Company retreats

Visa sponsorship

Not detected in the job text

Keywords

Golang
Ruby on Rails
Javascript
Java
C#
Python
VueJS
MySQL
Kafka
AWS
Git
Memcache
Redis
ElasticSearch
Docker
Terraform
Kubernetes
CircleCI
DataDog
LLMs
AI Agents
RAG
Orchestration
Backend Engineering
API Design
System Integration
Cloud Infrastructure
Product-minded
Software Engineering
Artificial Intelligence

Report this job