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Added 4 days ago
Summer 2027 Long Term Thermal Mechanical Test Engineer Intern/Co-op
Advanced Micro Devices, Inc
Markham, ON
We are seeking highly motivated Thermal/Mechanical Test Engineer co-op to join our team. In this role –
Added 3 days ago
Oracle EDQ Platform Engineer (contract)
Capgemini
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We are seeking a highly skilled Oracle EDQ Platform Engineer to lead and support the migration of Oracle Enterprise Data Quality (EDQ) from on-premises environments to Microsoft Azure…
Added 4 days ago
FY27 Intern - Physical Mixed Layout Engineering Internship - Canada (16 months)
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As a Physical Mixed Layout Engineer Intern, you will have the unique opportunity to work alongside our experienced design team on the layout of complex integrated circuits. You will be…
Added 2 months ago
Founding Engineer
Requesty
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Full-time
Added 3 days ago
Senior Software Engineer II, KYC
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As a Senior Software Engineer II, KYC, You Will Lead Technically Complex Projects And Serve As a Multiplier For Your Team. You’ll Work To
Added 3 days ago
Senior Software Engineer II, KYC
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As a Senior Software Engineer II, KYC, You Will Lead Technically Complex Projects And Serve As a Multiplier For Your Team. You’ll Work To
Added 3 days ago
Professional Senior, Engineering, Data Engineer, Data Analytics
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Added 3 days ago
Lead Product Engineer (Global Security)
Royal Bank of Canada
Toronto, ON
Full-time
Full-stack development (JavaScript, React, Node.js, Python or similar)
Added 4 days ago
Senior Solutions Engineer
Suger
Vancouver, BC
$120,000 to $160,000 CAD / year
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We’re hiring a Senior Software Engineer - Solutions to work directly at the intersection of product engineering and customer integrations.
Added 3 days ago
Software Engineer
Picovoice
Vancouver, BC
$75,000 to $150,000 CAD / year
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Added 3 days ago
Founding Engineer (AI & Agentic Systems)
Codexa Intelligence
Remote, Canada
$80,000 to $110,000 USD / year
Full-time · Remote
We're looking to hire a founding engineer to own the intelligence layer of the product. This person lives entirely on the agentic and AI side of Codexa: the orchestration that decides what…
Added 3 days ago
Senior Developer Engineer/Leader
Xcelerated Consulting Group, LLC.
Montreal, QC
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Scripting & Frontend (Preferred): Proficiency in Python and/or Shell Scripting for automation.
Added 4 days ago
Lead Product Engineer (Global Security)
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Toronto, ON
Full-time
Full-stack development (JavaScript, React, Node.js, Python or similar)
Added 28 days ago
Senior Data Engineer, Temporary
Aviso
Vancouver, BC
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We're looking for a Senior Data Engineer to join our Data and Analytics Group within the Technology Services Partners (TSP) department for 12 months.
Added 3 days ago
AI Platform Engineer
Pacer Group
Halifax, NS
$55 to $60 CAD / hour
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Job Title: AI Platform Engineer with DevOps Experience
Added 4 days ago
Senior Cloud Security Engineer
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Vancouver, BC
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Added 4 days ago
Tech Lead | Canada
Cuesta Partners
Remote, Canada
$140,000 to $275,000 CAD / year
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Proven 8-10 years experience as a Data Engineer or similar role, with a strong background in designing and implementing data solutions.
Added 3 days ago
ML Dev Engineer
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Vancouver, BC
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Added 3 days ago
Senior Analytics Developer
CNN
Ottawa, ON · Kanata, ON
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You think about the long-term health of your work, your monitoring, your alerting, and your documentation. You nurture all of these in parallel to your engineer responsibilities.
Added 4 days ago
Lead Agentic AI Engineer
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Toronto, ON
Full-time
Strong Python backend - FastAPI, async, Pydantic, streaming responses
Added 3 days ago
Python Engineer
Raas Infotek
Mississauga, ON
Contract
We are looking for an experienced Python Automation Engineer to design, develop, and maintain automation solutions that improve operational efficiency, reduce manual effort, and enhance…
Added 3 days ago
Python Engineer
Raas Infotek
Mississauga, ON
Contract
We are looking for an experienced Python Automation Engineer to design, develop, and maintain automation solutions that improve operational efficiency, reduce manual effort, and enhance…
Added 3 days ago
Senior Cloud Security Engineer
Pixieset
Vancouver, BC
Full-time
We’re hiring a Senior Cloud Security Engineer to strengthen and lead cloud security across Pixieset’s AWS, Cloudflare, and Kubernetes environments.
Added 3 days ago
Vertex AI Developer
Spruce InfoTech Inc.
Toronto, ON
Contract
A senior developer (7+ years) with strong Python/PySpark and Java experience who has spent the last 1-2 years building AI/ML solutions, LLM-powered agents, and Vertex AI applications, and…
Added 4 days ago
Sr. Software Engineer - Fullstack
eBay
Toronto, ON
Full-time
We are looking for a Senior Software Engineer – Full Stack with 6+ years of professional software development experience to help build a new, scalable authentication platform.

eBay

Sr. Software Engineer - Fullstack

Toronto, ON, Canada

Pay: C$118,000 - C$157,500
Job type: Full-time
Experience: 6+ years of professional software engineering experience building production applications.
Posting language: English
Posted: Sep 17, 2026

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Original job description

At eBay, we're more than a global ecommerce leader - we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work - every day. We're in this together, sustaining the future of our customers, our company, and our planet.

Join a team of passionate thinkers, innovators, and dreamers - and help us connect people and build communities to create economic opportunity for all.

About the Role

We are looking for a Senior Software Engineer – Full Stack with 6+ years of professional software development experience to help build a new, scalable authentication platform.

You will work across the full stack, with a stronger focus on frontend development, while contributing to backend services, system design, architecture, deployment, and production support. This is an opportunity to join a new team and help shape a greenfield product from the ground up.

About the Team

The Authenticity Guarantee program helps build trust in high-value transactions by having eligible items inspected for authenticity and quality before reaching the buyer.

Our team is building Authentication as a Service, evolving these capabilities into a scalable and reusable platform that can support experiences beyond the core eBay marketplace, starting with Depop.

This is a new team working on a 0→1 product, with significant opportunities to influence architecture, technology choices, and how the platform is built.

Responsibilities

Design, build, test, deploy, and maintain full-stack applications, with a focus on frontend development.
Develop modern web experiences using React, Angular, or similar frontend frameworks.
Design and build backend services and RESTful APIs.
Design and work with relational databases such as PostgreSQL or MySQL.
Build and deploy cloud-native applications using GCP, AWS, or Azure.
Own complex features end-to-end, from technical design and implementation through deployment and production support.
Contribute to system design and architecture, evaluating technical approaches and trade-offs as the platform evolves.
Build high-quality, maintainable software and contribute to strong testing, code review, CI/CD, and production practices.
Collaborate closely with product, UX, QE, and other engineering teams to drive technical decisions and delivery.
Use AI-assisted development tools to improve engineering productivity while maintaining strong code quality and review practices.
Evaluate technologies and frameworks and help establish engineering practices for the new platform.
Provide technical guidance and mentorship to other engineers as the team grows.

Minimum Qualifications

6+ years of professional software engineering experience building production applications.
Strong full-stack development experience, with significant hands-on frontend development.
Experience with a modern frontend framework such as React, Angular, Vue.js, or similar.
Experience designing and developing backend services and RESTful APIs.
Strong programming skills in a backend language such as Java, Kotlin, C#, Python, Go, or similar.
Experience designing and developing applications using relational databases such as PostgreSQL or MySQL.
Experience developing and deploying applications in a cloud environment such as GCP, AWS, or Azure.
Experience with CI/CD pipelines such as Jenkins, GitHub Actions, or similar.
Experience contributing to system design and architectural decisions, including evaluating technical trade-offs.
Experience independently owning technical problems from design through production.
Experience using AI-assisted software development tools to improve developer productivity, with the ability to review and understand AI-generated code.
Strong communication and collaboration skills in a cross-functional engineering environment.

Preferred Qualifications

Experience with Java and Spring Boot.
Experience with Google Cloud Platform (GCP).
Experience with Kafka or other event-driven technologies.
Experience with Elasticsearch or similar search technologies.
Experience with Kubernetes.
Experience developing native Android applications, ideally using Kotlin.
Experience with warehouse operations, shipping, logistics, authentication, or e-commerce.
Experience mentoring or providing technical guidance to other engineers.

Success In This Role

A successful Senior Full Stack Software Engineer will:

Deliver high-quality features with limited oversight.
Contribute effectively across frontend and backend development.
Own technical problems from design through production.
Make meaningful contributions to architecture and technology decisions.
Thrive in a greenfield environment where requirements and architecture are still evolving.
Use AI tools effectively to increase productivity without compromising engineering quality.
Help establish strong engineering practices as the team and platform grow.

Additional Details

The base pay range for this position is expected in the range below:

C$118,000 - C$157,500

Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including RRSP eligibility, various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.

This job posting relates to an existing vacancy within eBay.

eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at [email protected]. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility.

We use cookies to enhance your experience and may use AI tools for administrative tasks in the hiring process. To learn how we handle your personal data and use AI responsibly, please visit our Talent Privacy Notice, Privacy Center and AI Hiring Guidelines.

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More about this job

Responsibilities

Design, build, and maintain full-stack applications with a focus on frontend development for a new authentication platform. Collaborate with cross-functional teams to drive technical decisions, architecture, and production support.

Requirements

Requires 6+ years of professional software engineering experience with strong proficiency in full-stack development and modern frontend frameworks. Candidates must have experience with backend services, relational databases, and cloud-native application deployment.

Skills

Fullstack development
Frontend development
React
Angular
Vue.js
RESTful APIs
PostgreSQL
MySQL
Java
Kotlin
Cloud computing
GCP
AWS
Azure
CI/CD
System design

Benefits

Medical benefits
Financial benefits
RRSP eligibility
Paid time off
Parental leave
Restricted stock units
Target bonus

Visa sponsorship

Not detected in the job text

Keywords

Software Engineer
Fullstack
Ecommerce
Authentication
React
Angular
Vue.js
Java
Kotlin
PostgreSQL
MySQL
GCP
AWS
Azure
RESTful APIs
CI/CD
Jenkins
GitHub Actions
Spring Boot
Kafka
Elasticsearch
Kubernetes
System Design
Cloud-native
AI-assisted development
Greenfield product
Scalable platform
Technical mentorship
Software development
Production support

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