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Senior Data/AI Engineer
Guidepoint
Toronto, ON
…drive the development of next-generation research enablement platforms and AI-driven data products. You will develop and scale Generative AI-powered systems, including large language model…
Senior Backend Engineer
Partyhat
Remote, Canada
Full-time · Remote
We value structural integrity, clean concurrent code, and engineering momentum over corporate credentials. Whether you have designed high-throughput financial rails or led the architecture…
Senior Software Engineer, Finance Systems
Eyeline
Vancouver, BC
$165,000 to $200,000 CAD / year
Full-time
The Senior Software Engineer (Finance System) sits on the Platform Engineering team and works day to day with Production Finance to build, support, and improve the studio's bidding,…
Senior Integration Engineer
Vancity
New Westminster, British Columbia · Vancouver, British Columbia
Full-time
Job posting link via Si Systems: Senior Integration Engineer
Senior Software Engineer, Integrations
d1g1t
Toronto, Ontario
Full-time
As a Senior Engineer, you won't just be writing code - you will be a vital technical voice and project leader. You will bridge the gap between business needs and complex data systems,…
Senior DevOps Engineer
ShyftLabs
Toronto, ON
Full-time
ShyftLabs is a fast-growing data and technology company that partners with Fortune 500 and enterprise organizations to solve complex business challenges through cloud, AI, data engineering,…
Senior AI Engineer
CI Financial
Toronto, Ontario
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…
Senior Software Engineer
Royal Bank of Canada
Toronto, ON
Full-time
We're looking for a visionary Senior Software Engineer to provide strategic technical leadership and deep subject-matter expertise in designing and implementing enterprise-scale AI…
Senior Software Engineer, Frontend
Sardine
Remote, Canada
$160,000 to $210,000 CAD / year
Full-time · Remote
Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent…
Senior Software Engineer - Applied AI
Feathery
Toronto, Ontario
$90,000 to $140,000 CAD / year
Full-time
Feathery helps insurance and wealth management firms modernize how they collect and process data. Enterprise teams use our platform to run high-stakes workflows - from new client onboarding…
Senior Software Engineer - Infrastructure
Confluent
Remote, Canada
$144,200 to $169,400 CAD / year
Full-time · Remote
We’re not just building better tech. We’re rewriting how data moves and what the world can do with it. With Confluent, data doesn’t sit still. Our platform puts information in motion,…
Senior Backend Engineer .NET & Python
PosiTrace
Vancouver, BC
$110,000 to $145,000 CAD / year
Full-time
Direct architectural impact on a multi-service SaaS platform processing real-time GPS data at scale
Senior Software Engineer
Roadpost
Etobicoke, Ontario
Full-time
As a Senior Software Engineer, you’ll lead technically significant initiatives across the stack - building React interfaces, Node.js services, and PostgreSQL-backed systems. You’ll work…
Senior Software Engineer
Roadpost
Toronto, Ontario
Full-time
As a Senior Software Engineer, you’ll lead technically significant initiatives across the stack - building React interfaces, Node.js services, and PostgreSQL-backed systems. You’ll work…
Senior Software Engineer
Evismart
Vancouver, BC
…disconnected systems, manual workflows, and decisions made without data. Most of it has never been touched by modern software engineering, let alone…
Senior RAG Engineer
MCI Careers
Canada
Other
We are seeking a Senior RAG Engineer to lead the design and optimization of Retrieval-Augmented Generation platforms that power enterprise AI solutions. This role requires expertise in…
Senior Product Engineer I - Automation
Docebo
Remote, Canada
$102,800 to $137,000 CAD / year
Full-time · Remote
Step into the driver's seat of the high-octane engine that powers Docebo’s enterprise automation platform! In this role, you will architect, build, and scale business-critical backend…
Senior Software Engineer
Fleetworthy
Edmonton, AB
The Senior Software Engineer is a hands-on technical contributor embedded in our agile development organization, helping build and deliver our next-gen compliance platform. You bring the…
Senior Software Engineer
Forum Ventures
ON
Full-time
Weʼre looking for a Senior Software Engineer with 5 - 8 years of professional experience to help design, build, and scale the production systems behind askpollyʼs AI-powered insights…
Senior Software Engineer, Applied AI (Toronto)
Justworks
Toronto, ON
$188,000 to $242,000 CAD / year
Full-time
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…
Senior Software Engineer, Applied AI (Netherlands)
Justworks
Toronto, ON
€143,000 to €184,000 EUR / year
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…
Senior Software Engineer, Applied AI (Spain)
Justworks
Toronto, ON
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…
Senior Software Engineer, Applied AI (Toronto)
Justworks
Toronto, ON
$188,000 to $242,000 CAD / year
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…
Senior Frontend Engineer
GamblingCareers.com
Canada
Full-time
As a Senior Front End Engineer, you will build and evolve modern web and mobile applications while helping shape the event instrumentation and architecture that supports our digital…
Senior Software Engineer
OpenLoop Health
Remote, Canada
Full-time · Remote
As a Senior Full Stack Engineer at OpenLoop, you will play a key role in designing, building, and scaling production-grade systems that power our nationwide healthcare network. Depending on…

Justworks

Senior Software Engineer, Applied AI (Netherlands)

Toronto, ON, Canada

Pay: €143,000 to €184,000 EUR / year
Experience: 5+ years of backend engineering experience building and operating production systems
Posting language: English
Posted: Aug 5, 2026

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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 The Netherlands is targeted at 143,000 - 184,000 EUR per year.

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 [email protected]. Your comfort and success matter to us, and we're here to ensure an inclusive experience.

Our DEIB Report

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More about this job

Responsibilities

Design, build, and own core components of the AI agent platform, including orchestration layers and knowledge infrastructure. Partner with operations teams to translate workflows into automated agent capabilities while ensuring robust trust and safety frameworks.

Requirements

Requires 5+ years of backend engineering experience with a strong focus on production systems and AI/LLM technologies. Candidates must demonstrate a product-minded approach, strong ownership, and the ability to work effectively in ambiguous, early-stage environments.

Skills

Golang
Ruby on Rails
Python
LLMs
AI agents
RAG
API design
System integration
Backend engineering
Kubernetes
Docker
AWS
Kafka
ElasticSearch
Terraform
DataDog

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
System Architecture
API Design
Knowledge Infrastructure
Trust and Safety
Product-minded
Automation

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