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Added 8 days ago
Supplier Quality Engineer
Westerkirk
Calgary, AB
The Supplier Quality Engineer reports to the Director of Quality for Manufacturing and the primary purpose of the role is to; develop, implement, and coordinate the supplier approval…
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Manager, ML Engineer
RBC
Toronto, ON
- Full-time
Reporting to the Director, Credit & Stress Testing Implementation Assurance, the Manager, ML Engineer will apply business and technical knowledge to turn models into production-grade…
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Assistant Shift Engineer
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- Full-time
…possibility. We currently have an opportunity for an Assistant Shift Engineer (3rd Class Power Engineer) at our Yorkton - Oilseed location. The Assistant Shift Engineer (3rd Class Power…
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Intermediate Electrical Designer
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Senior System Engineer, Service SDK / Backend
Haply Robotics
Montreal, QC
- Full-time
We're hiring a Senior System Engineer, Service SDK / Backend to build the software foundation that powers every Haply device.
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Quality Engineer Lead
Kelly Science, Engineering, Technology & Telecom
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- $67,000 to $97,000 USD / year
- Full-time
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Guidewire ClaimCenter Integration Developer
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- Full-time
Monitor system performance and recommend improvements to enhance functionality.
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Senior Audio Systems Engineer
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Senior Audio Systems Engineer (Acoustics / Hardware / DSP)
Added 8 days ago
MA
ELECTRICAL ENGINEER
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Saskatoon, SK
- Full-time
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Structural Technologist
Ikon Engineers Canada Ltd.
Vancouver, BC
- Full-time
…This is a full-time position that will report to the Principal Engineer…
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Senior Transportation Engineer
CIMA+
Calgary, AB
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Added 8 days ago
SE
Senior Electrical Engineer
Sense Engineering
Remote, Canada
- $125,000 to $140,000 CAD / year
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- Remote
As a Senior Electrical Engineer, you’ll play a vital part in delivering outstanding service and solutions to our clients on a range of projects, including electrical equipment assessments,…
Added 8 days ago
SI
R&D Engineer II
Stathera, Inc.
Vancouver, BC
- Full-time
The R&D Engineer is responsible for designing, analyzing, and validating board-level analog and mixed-signal circuits to support the development of high-performance electronic systems. This…
Added 8 days ago
Staff Software Engineer, Investors
Carta
Toronto, ON · Waterloo, ON
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Senior Software Engineer II, Investors
Carta
Toronto, ON · Waterloo, ON
…private capital. Built to replace fragmented tools with a single system of record, Carta brings together the software, services, and legal infrastructure that founders use to manage equity,…
Added 8 days ago
V
Product Manager, Measurement Experience
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Remote, Canada
- $140,000 to $170,000 CAD / year
- Full-time
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Work toward a system where launching a new retailer integration automatically lights up the standard reporting suite - configuration, not engineering.
Added 8 days ago
S
Fullstack Engineer (Moderation)
Stream
Remote, Canada
- $100,000 to $127,998 CAD / year
- Full-time
- Remote
We're looking for a Senior Full Stack Engineer I to join Stream on our mission of elevating the quality of apps for billions of users globally. You'll own the backend of our AI Moderation…
Added 8 days ago
S
Senior Machine Learning Engineer
ServiceNow
Toronto, ON
- Full-time
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
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DevOps Engineer
Tekshapers
Toronto, ON
- Full-time
Added 8 days ago
C
Structural Engineer
CIMA+
Mississauga, ON
- $106,720 to $146,740 CAD / year
- Full-time
…what’s expected of us to meet the challenges of tomorrow and engineer a better…
Added 8 days ago
FA
Application Engineer - Physical AI
FANUC America Corporation
Mississauga, ON
- $80,000 to $127,000 CAD / year
Application Engineer with experience in Physical AI technologies are responsible for the duties outlined below. As a member of the FANUC Canada engineering team based in Mississauga, you…
Added 8 days ago
Project Engineer Mechanical (4-7 years)
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Working closely with the project team and reporting to the Director of Engineering, the Project Engineer Mechanical will be actively participating in or leading the execution of HVAC system…
Added 8 days ago
Automation - Automation Engineer
Bronswerk Group & Affiliates
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Reporting to the Automation Controls Director, the Automation Engineer/Specialist will work with Project Managers to program and design PLC and HMI’s, install (commission), troubleshoot,…
Added 8 days ago
XS
AI Solution Architect/FDE (AWS and Azure)
XChange Software Inc
Toronto, ON
- Contract
Experience with full-stack development and system integration
Added 8 days ago
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MONTRÉAL | [HYBRID] – Middleware File Transfer Engineer
QUANTEAM - North America (RAINBOW PARTNERS Group)
Montreal, QC
- Full-time
We are looking for a Middleware File Transfer Engineer to join one of our clients, an international bank based in Montréal.

Stream

Fullstack Engineer (Moderation)

Remote, Canada

Remote

$100,000 to $127,998 CAD / year · Full-time

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Job details

Pay: $100,000 to $127,998 CAD / year
Job type: Full-time
Workplace: Remote
Experience: 3+ years of professional software engineering experience, mostly on the backend.
Posting language: English
Posted: Oct 16, 2026

Original job description

About Stream

Stream powers real-time Chat, Video, Activity Feeds, and AI Moderation for more than 1 billion end users across 4,000+ apps, from Strava and Bumble to eBay and Patreon. Our platform processes billions of API requests per month and supports applications with millions of concurrent users, while delivering highly reliable, low-latency services and a great developer experience.

The role

We're looking for a Senior Full Stack Engineer I to join Stream on our mission of elevating the quality of apps for billions of users globally. You'll own the backend of our AI Moderation product: building new capabilities and making the Go services behind them cleaner, faster and more reliable.

This is a full-time role, hybrid with 3 days a week in our Toronto co-working space.

What you'll work on

You'll join our five-person Moderation team, which builds the product customers use to detect, review and act on harmful content in their apps. The role leans backend. Dedicated frontend engineers own the moderation dashboards, and you'll own the Go services, data model and integrations behind them, stepping into React when a feature spans the stack. You'll work closely with the team lead, our other Toronto-based engineer, Infrastructure, and the Customer Success and Support teams, and directly with customers' trust and safety and engineering teams.

Here's the honest current state: the product has grown fast and the backend has grown with it. There's real cleanup, refactoring and simplification to do, and you'll have the room to do it well. You'll also give the team coverage in North American hours, which today rests largely on one engineer.

Job responsibilities:

Build new moderation features: design and ship Go services from database schema and API endpoints through to production rollout, including work on our new AI moderation flow.
Clean up the backend: refactor existing moderation services, reduce technical debt, simplify code paths and raise test coverage.
Improve reliability and performance: strengthen alerting and observability, and fix scaling and latency issues in the moderation pipeline.
Own third-party integrations: maintain and extend the AI and moderation providers that plug into the pipeline.
Keep production healthy: diagnose defects to root cause and take part in on-call, with a focus on North American hours.
Work with customers: troubleshoot their issues directly and bring what you learn back into the roadmap.
Work across the stack when needed: ship React changes alongside the frontend engineers and review your peers' code.

About you

You're a backend engineer at heart who is comfortable picking up frontend work when a feature needs it. You enjoy leaving a codebase better than you found it, and you'd rather simplify a service than add another layer to it. You like owning problems end to end, including the ones that show up in production or in a customer conversation.

You probably won't enjoy this role if you want a pure frontend position, a large team with a fixed process, or a job with no on-call. The team is small, the product is moving fast, and North American coverage is part of the job.

You have:

3+ years of professional software engineering experience, mostly on the backend.
Solid backend experience in Go, Python or a comparable language, and willingness to work in Go. We run a 10-week internal Go onboarding programme.
Experience designing REST APIs and relational data models (ideally Postgres), and working with Redis.
A track record of shipping features used at scale and of refactoring and improving existing production systems.
Working knowledge of React and TypeScript or JavaScript.
Experience with automated testing across client and server code.
Comfort working with customers and handling production incidents.

Bonus points:

Exposure to trust and safety, content moderation or policy enforcement products.
Professional experience with Go.
Experience with GCP or another major cloud provider.
Experience integrating LLM or ML-based services into production systems.
Message queue experience.
Full-text search experience.
Open-source contributions.

What makes this role exciting

Scope: you'll own the backend of a product area, with the room to clean up and reshape it.
Impact: AI Moderation is one of Stream's growth products, and you'll help ship its new AI moderation flow and the features that come after it.
Stack: Go, Postgres, Redis and React on GCP, with Claude, Cursor and ChatGPT Codex as everyday tools.
Starting point: a small team where your work is visible from week one, and a second Toronto engineer to work with closely.

Why join Stream?

We're a Series B company with offices in Boulder, Amsterdam, Skopje and Toronto, and a team of 140+ people from 37 nationalities. We're backed by Felicis Ventures, GGV Capital, 01 Advisors, Techstars, and Arthur Ventures, with angels including Dick Costolo (ex-CEO of Twitter), Olivier Pomel (CEO of Datadog), Tom Preston-Werner (co-founder of GitHub), and Nicolas Dessaigne (co-founder of Algolia).

We'll be straight with you: a startup is more demanding than a large company. There's no fixed playbook, you'll own things end to end, and you'll sometimes pick up work outside your title. That's also what makes it a fast place to grow. If you want real ownership and high scale more than structure and a set career ladder, you'll feel at home here.

What we offer

A base salary of CAD 100,000 to 127,998 per year
Stream employees enjoy some of the best job benefits in the industry:
- A team of exceptional engineers
- The chance to work on OSS projects
- 20 days of PTO first year of employment, 24 days starting your second year
- Company equity
- Extended Healthcare
- Dental benefit
- Long & Short-Term Disability
- Life Insurance
- Fitness stipend
- A Macbook Pro provided
- A Learning and Development budget
- The opportunity to attend or present to global conferences and meetups
- The possibility to visit our offices in Boulder, CO and Amsterdam, NL

Our culture

Stream is a casual, transparent team that aims high and supports each other. In engineering, we care about ownership and quality, and our goal is to ship stable software. Management stays hands-on, with less middle management and more time spent doing the work. If that sounds like the environment you want next, apply now.

Equal opportunity

Stream is an equal opportunity employer and welcomes applications from all qualified candidates. We don't discriminate based on any ground protected by the Ontario Human Rights Code. Accommodation is available on request for candidates taking part in all parts of the selection process.

This posting is for an existing vacancy. We don't use AI to screen, assess or select applicants. You must be legally entitled to work in Canada; we can't offer visa sponsorship or relocation for this role.

Hybrid office policy: applicants based (or relocating to) one of our office locations are expected to work according to the applicable local office attendance policy.

Equal opportunity employer statement: Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Note for external recruiters: We currently have this role covered and do not accept unsolicited agency resumes. We are not responsible for any fees related to unsolicited resumes.

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More about this job

Responsibilities

You will own the backend of the AI Moderation product, building new features and refactoring existing Go services to improve reliability and performance. You will also work across the stack to ship React changes and collaborate directly with customers to troubleshoot issues.

Requirements

The role requires 3+ years of professional software engineering experience with a strong focus on backend development. Candidates must have experience with Go, Python, or similar languages, as well as proficiency in designing REST APIs and working with relational databases.

Skills

Go
Backend development
React
TypeScript
JavaScript
Postgres
Redis
REST APIs
Automated testing
Observability
Cloud computing
GCP
System architecture
Technical debt reduction
Customer support

Benefits

Extended Healthcare
Dental benefit
Long & Short-Term Disability
Life Insurance
Fitness stipend
Macbook Pro provided
Learning and Development budget
Company equity
Paid time off

Visa sponsorship

Not detected in the job text

Keywords

Fullstack Engineer
Go
Python
Postgres
Redis
React
TypeScript
JavaScript
REST APIs
GCP
AI Moderation
Observability
Technical debt
LLM
ML
Message queue
Full-text search
Software engineering
Cloud provider
API development

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