Jobs in Canada

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Added 10 days ago
SH
Research Associate 2 (SRI) - Physical Sciences - Regular Full-Time 2026-19189
Sunnybrook Health Sciences Centre
Toronto, ON
- Full-time
The Research Associate Level II will play a senior role in supporting the scientific and operational direction of the laboratory, overseeing the implementation and management of multiple…
Added 16 days ago
Directeur(trice) Associé(e), Construction Régionale / Associate Director, Regional Construction
Pure Industrial
Montréal, QC
…construction, de gestion immobilière et de location. Agir comme principal point de contact pour toutes les équipes interfonctionnelles du…
Added 18 days ago
Senior Customer Engineer - Calgary, AB
Cloudflare
Calgary, AB
…Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its…
Added 18 days ago
AI Associate Principal - Radioconjugate Discovery
AstraZeneca
Hamilton, ON
The AI Associate Principal - Radioconjugate Discovery will be accountable for designing, building, deploying, and maintaining software and AI-enabled solutions that accelerate…
Added 1 month ago
Principal Software Engineer, Front End Web UI Platform
GitHub, Inc.
Canada
OR Associate's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 10+ years experience…
Added 1 month ago
Staff Software Engineer, Front End Web UI Platform
GitHub, Inc.
Canada
OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 8+ years experience…
Added 1 month ago
Principal Analyst, Power Markets – Long-Term Forecasting - 26150DD
Enverus
Calgary, AB
Principal Analyst, Power Markets – Long-Term Forecasting
Added 1 month ago
Senior Customer Engineer - Toronto, Canada
Cloudflare
Toronto, ON
…Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its…
Added 1 month ago
Principal Customer Engineer - Toronto Canada
Cloudflare
Toronto, ON
…Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its…
Added 1 month ago
IT Specialist
Amsted Rail Company
Winnipeg, MB
Associate's degree in Information Technology, Computer Science, Engineering, or a related field, or equivalent professional experience.
Added 1 month ago
IT Specialist
Amsted Canada
Winnipeg, MB
Associate's degree in Information Technology, Computer Science, Engineering, or a related field, or equivalent professional experience.
Added 1 month ago
Senior Job Captain, Healthcare Sector
Stantec
Toronto, ON
Certification: LEED Green Associate or LEED AP preferred. Career Advancement: Based on performance, there is an opportunity to be promoted to a Principal and become the technical lead for…
Added 1 hour ago
M
Associate Software Developer
Miraterra
Toronto, ON
- Full-time
As Associate Software Developer, you’ll build software that connects AI, lab instruments and real-world data, helping researchers and customers understand soil (and materials beyond soil),…
Added 9 hours ago
MS
Data Scientist (NLP Specialist) (Hybrid) // Scientifique des données principal(e) (spécialiste en TALN) (hybride)
Morgan Stanley
Montreal, QC
- Full-time
…management of legal, regulatory, and franchise risk. This is an Associate level position within the NFR Data & Analytics team, which is responsible for designing and optimizing surveillance…
Added 10 hours ago
S
Software Engineer
Sysco
AB · Sysco Canada Inc.
- Full-time
Deliver high quality software and technical solutions in an agile environment to meet internal Sysco business partner and end customer requirements. Works across the full stack and…
Added 2 days ago
Senior Staff Scientist (Quantum for AI-Accelerated Materials Discovery)
University of Toronto
Toronto, ON
Software Engineering: Implement algorithms in quantum software frameworks, building modular APIs that connect quantum backends to classical chemistry pipelines.
Added 2 days ago
IR
Associate Vice President, Salesforce Engineering & Development
Info-Tech Research Group
Toronto, ON · London, ON
- Full-time
Set and execute a multi-quarter engineering maturity roadmap spanning software development practices, code review, testing, security, technical debt, release management, observability,…
Added 3 days ago
Q
Mask Layout Design Lead
Qualcomm
Markham, ON
- Full-time
Associate's degree in Computer Science, Mathematics, Electrical Engineering or related field and 6+ years of experience designing custom layouts in relevant domain (e.g., analog, mixed…
Added 3 days ago
B
Principal Architect, AI Platform
BMO
Toronto, ON
- Full-time
10+ years in software engineering, solution architecture, and enterprise architecture, with substantial time at a principal/senior architect level setting direction across multiple teams.
Added 4 days ago
W
Spécialiste principal(e) en architecture de données et intelligence artificielle
Wepoint
Montreal, QC
- Full-time
Nous sommes à la recherche d'un(e) Spécialiste principal(e) en architecture de données et intelligence artificielle pour rejoindre notre équipe.
Added 4 days ago
O
Spécialiste principal(e) en architecture de données et intelligence artificielle
Onepoint
Montreal, QC
- Full-time
Nous sommes à la recherche d'un(e) Spécialiste principal(e) en architecture de données et intelligence artificielle pour rejoindre notre équipe.
Added 4 days ago
A
Consultant Principal Senior d’implantation, Comptes Nationaux - Sr. Lead Implementation Consultant, National Accounts
ADP
Montreal, QC
- Full-time
Consultant Principal Senior d’implantation, Comptes Nationaux
Added 8 days ago
N
Senior Producer (Assets) / Producteur(trice) principal(e) (Répertoire de Contenu)
NBCUniversal
Montreal, Quebec
- Full-time
We’re looking for an experienced Senior Producer (Assets) | Producteur(trice) principal(e) (Répertoire de Contenu) to lead the production system for content creation across a large-scale…
Added 8 days ago
CO
Principal Associate, Technical Recruiting
Capital One
Toronto, ON
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Principal Associate, Technical Recruiting
Added 10 days ago
S
Research Associate 2 (SRI) - Physical Sciences - Regular Full-Time 2026-19189 (2026-19189)
Sunnybrook
Toronto, ON
- Full-time
The Research Associate Level II will play a senior role in supporting the scientific and operational direction of the laboratory, overseeing the implementation and management of multiple…

GitHub, Inc.

Staff Software Engineer, Front End Web UI Platform

Canada

Apply on github.careers About employer

Applications open in a new tab.

Job details

Posting language: English
Posted: Aug 17, 2026

Original job description

About GitHub

GitHub is the world’s leading platform for agentic software development - powered by Copilot to build, scale, and deliver secure software. Over 180 million developers, including more than 90% of the Fortune 100 companies, use GitHub to collaborate, and more than 77,000 organisations have adopted GitHub Copilot.

Locations

In this role you can work from Remote, Canada

Overview

GitHub's Core UX organization owns the frontend platform behind GitHub.com: the architecture, tooling, and standards that let hundreds of engineers ship UI that is fast, accessible, consistent, and reliable. We're looking for a Principal Software Engineer to set technical direction across that platform and raise the ceiling on what the frontend can do for millions of developers.

This is a systems role, not a single-team role. You'll work across the concerns that overlap in frontend at scale: performance, accessibility, UX consistency, and availability. Much of the work is evolving a large, actively developed codebase rather than starting from scratch, so success depends as much on migration strategy and cross-team alignment as on architecture. You'll shape paved paths that many teams adopt, not one-off solutions that rely on heroics.

You'll partner closely with other Principal and Staff engineers, Engineering Managers, and Product and Design leadership to decide where the platform goes next and to drive that direction to real, shipped outcomes.

Responsibilities

Own the technical direction for GitHub's web UI platform across performance, accessibility, consistency, and availability, balancing long-term architecture with hands-on execution.
Drive large cross-team initiatives and migrations, sequencing the work so the platform moves forward without disrupting active product development.
Establish patterns, standards, and paved paths for frontend development that lower cognitive load and scale across many teams.
Produce architecture and design proposals, evaluate tradeoffs honestly, and build alignment across engineering, product, and design.
Mentor and raise the bar for engineers at every level through design review, code review, and pairing.
Represent frontend platform priorities to leadership, securing the support and resourcing needed to deliver.

What Success Looks Like in the First 6 Months

You've built a deep working understanding of GitHub's frontend systems, infrastructure, and their backend dependencies, and you're using it to make informed, high-leverage decisions.
You're leading at least one platform-wide initiative that measurably improves performance, availability, frontend infrastructure, or developer velocity.
Teams are adopting the patterns and paved paths you've shaped, with less need for direct hand-holding.

Qualifications

Required Qualifications

9+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
- OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 8+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR Bachelor's Degree in Computer Science or related field AND 7+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR Master's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR Doctorate in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 3+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR equivalent experience.

Preferred Qualifications

Deep knowledge of React or Angular internals and server-side rendering, with experience modernizing frontend systems in large, multi-team codebases.
Track record of improving web performance (Core Web Vitals, interaction latency, bundle size) through systematic, data-driven work.
Experience leading cross-team frontend migrations and rollouts, managing sequencing, deprecation, and incremental adoption across many engineers.
Strong command of web platform and accessibility fundamentals (browser APIs, a11y standards, TypeScript, JavaScript, CSS) and how they interact with framework-level abstractions.
Experience building design systems, shared component libraries, or paved-path tooling that many teams adopt.

GitHub values

Customer-obsessed
Ship to learn
Growth mindset
Own the outcome
Better together
Diverse and inclusive

Manager fundamentals

Model
Coach
Care

Leadership principles

Create clarity
Generate energy
Deliver success

Who We Are

GitHub is the world’s leading AI-powered developer platform with 150 million developers and counting. We’re also home to the biggest open-source community on earth (and 99% of the world’s software has open-source code in its DNA). Many of the apps and programs you use every day are built on GitHub.
Our teams are dreamers, doers, and pioneers, leading the way in AI, driving humanitarian efforts around the globe, and even sending open source to Mars (and beyond!). At GitHub, our goal is to create the space you need to do your best work. We’re remote-first and offer competitive pay, generous learning and growth opportunities, and excellent benefits to support you, wherever you are - because we know that people flourish when they can work on their own terms.
Join us, and let’s change the world, together.

Equal Employment Opportunity

GitHub is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people of all walks of life. We don't discriminate against employees or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, citizenship, disability, pregnancy status, veteran status, or any other differences. Also, if you have a disability, please let us know if there's any way we can make the interview process better for you; we're happy to accommodate!

Own the technical direction for GitHub's web UI platform across performance, accessibility, consistency, and availability, balancing long-term architecture with hands-on execution.
Drive large cross-team initiatives and migrations, sequencing the work so the platform moves forward without disrupting active product development.
Establish patterns, standards, and paved paths for frontend development that lower cognitive load and scale across many teams.
Produce architecture and design proposals, evaluate tradeoffs honestly, and build alignment across engineering, product, and design.
Mentor and raise the bar for engineers at every level through design review, code review, and pairing.
Represent frontend platform priorities to leadership, securing the support and resourcing needed to deliver.

What Success Looks Like in the First 6 Months

You've built a deep working understanding of GitHub's frontend systems, infrastructure, and their backend dependencies, and you're using it to make informed, high-leverage decisions.
You're leading at least one platform-wide initiative that measurably improves performance, availability, frontend infrastructure, or developer velocity.
Teams are adopting the patterns and paved paths you've shaped, with less need for direct hand-holding.

Required Qualifications

9+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
- OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 8+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR Bachelor's Degree in Computer Science or related field AND 7+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR Master's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR Doctorate in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 3+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python.
- OR equivalent experience.

Preferred Qualifications

Deep knowledge of React or Angular internals and server-side rendering, with experience modernizing frontend systems in large, multi-team codebases.
Track record of improving web performance (Core Web Vitals, interaction latency, bundle size) through systematic, data-driven work.
Experience leading cross-team frontend migrations and rollouts, managing sequencing, deprecation, and incremental adoption across many engineers.
Strong command of web platform and accessibility fundamentals (browser APIs, a11y standards, TypeScript, JavaScript, CSS) and how they interact with framework-level abstractions.
Experience building design systems, shared component libraries, or paved-path tooling that many teams adopt.

Apply on github.careers About employer

More about this job

Responsibilities

The Staff Software Engineer at GitHub will set technical direction for GitHub's web interface platform and lead large initiatives that move many teams to shared frontend tools and standards. The person will also review designs and code, mentor engineers, and present platform priorities to leadership.

Requirements

Candidates need at least 9 years of software engineering experience building and maintaining production software in languages such as JavaScript, Java, Go, Python or Ruby, or an equivalent combination with a relevant degree. Strong frontend skills in React or Angular, web performance and accessibility are preferred.

Skills

React
Angular
Server-side rendering
JavaScript
TypeScript
CSS
Browser APIs
Web accessibility standards (a11y)
Core Web Vitals
Web performance optimization
Bundle size reduction
Design systems
Shared component libraries
Cross-team migrations
Architecture design
Technical leadership
Code review
Design review
Mentoring
Java
Go
Ruby
Python
Rust
C++

Benefits

Learning and growth opportunities
Excellent benefits

Keywords

Staff Software Engineer
Principal Engineer
frontend platform
web UI
React
Angular
server-side rendering
JavaScript
TypeScript
CSS
web performance
Core Web Vitals
accessibility
a11y
design systems
component libraries
frontend migration
paved paths
GitHub
remote Canada

Seniority

Senior

Tools

React
Angular
TypeScript
CSS

Languages

English

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Work requirements

Jobs in Canada