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Added 2 months ago
L4 Software Developer
TELUS Digital
Remote, Canada
$110,000 to $115,000 CAD / year
Full-time · Remote
TELUS Digital is seeking a Senior Technical Lead (L4) to join our NCCS engineering team. This role is ideal for a hands-on technical leader with strong experience in Java development,…
Added 3 months ago
Intermediate or Senior Software Developer
Ultra Maritime
Dartmouth, Nova Scotia
Full-time
Ultra Maritime has an exciting opportunity for an Intermediate or Senior Software Developer to contribute to our rapidly expanding business. The candidate will be responsible for designing,…
Added 17 days ago
Senior Application Security Analyst
Purolator
ON · Mississauga, ON
The Senior Application Security Analyst is responsible for embedding security into the software development lifecycle (SDLC) by partnering closely with application and engineering teams.…
Added 16 days ago
Staff Software Engineer, Fullstack
Fivetran
Toronto, ON
…authentication, billing, data model, and more. You’ll be a senior member of a distributed, collaborative, agile team of engineers of varying experience levels and diverse…
Added 1 month ago
Senior Agentic Software Engineer
Lantern
Edmonton, AB
As a Senior Software Modernization Engineer, you'll work directly with enterprise software engineering organizations to help modernize applications, improve developer productivity,…
Added 2 months ago
Sr. Software Engineer, Auth Tech
eBay
Remote, Canada
Full-time · Remote
We are seeking a talented and motivated Senior Backend Software Engineer to design, develop, and maintain the core services that power our authentication platform. In this role, you will…
Added 2 months ago
Future Opportunities: Senior Software Developer - Product Engineering
Wealthsimple Technologies
Remote, Canada
$151,200 to $189,000 CAD / year
Full-time · Remote
Take ownership of a domain and grow it. Our product is in a stage where the right senior engineer can have an outsized influence on what we build, how we build it, and where we go next.…
Added 2 months ago
Principal Engineer - Platform & Data
Masabi
Remote, Canada
Full-time · Remote
This is a senior role for someone who combines deep technical expertise with strong judgement and the ability to operate across teams. You’ll help shape the technical direction of Masabi’s…
Added 2 months ago
Software Development Manager
Curve Dental
Calgary, Alberta
Handle disciplinary actions in coordination with senior management as needed
Added 2 months ago
Artificial Intelligence (AI) Architect
Symbiotic Digital
Unorganized North Algoma, Ontario · Downtown Toronto (Ryerson), Ontario
Contract
We are seeking a Senior AI Architect/Designer to lead the
Added 2 months ago
Senior Manager, Engineering
TD
Remote, Canada
Full-time · Remote
10+ Years Technical Experience with Java, Angular, Kafka and Azure
Added 2 months ago
Senior Test Automation Developer
MNP
Calgary, Alberta
Full-time
Make an impact with our Technology - Development team as a Senior Test Automation Developer. This diverse team of tech-savvy builders and problem solvers embraces digital transformation,…
Added 22 days ago
Senior Crypto Engineer
Scotiabank
Toronto, ON
As a Senior Crypto Engineer, you will be a core member of the Crypto Engineering pillar, responsible for the design and modernization of the crypto platform, including the development of…
Added 2 months ago
Senior Software Developer
SOTI
Mississauga, Ontario
Full-time
…ecosystem - and you’re the one who is making it to happen. As our Senior Software Developer, you’ll own the core services that onboard thousands of devices, while mentoring a small,…
Added 23 days ago
Actuarial Associate, Life & Health (2027 Permanent - Toronto)
Munich Re
Toronto, ON
…including developing client strategies, reporting profitability to senior management, conducting market research, and quoting on special…
Added 2 months ago
Senior Backend Engineer - Lodging and Cars
Hopper
Remote, Canada
$220,000 to $300,000 CAD / year
Full-time · Remote
As a senior-level individual contributor, you will navigate a complex microservices environment to deliver reliable booking fulfillment, integrate new lodging and cars partners into our…
Added 2 months ago
Développeur·euse backend senior - Hébergement et Logement
Hopper
Remote, Canada
Full-time · Remote
En tant que contributeur·euse individuel·le de niveau senior, vous évoluerez dans un environnement complexe de microservices pour assurer un traitement fiable des réservations, intégrer de…
Added 2 months ago
Développeur(-euse) principal d’application mobile − Android / Senior Mobile Developer – Android
Expedia
Montreal, Quebec · Canada - Quebec - Montreal
Full-time
Maîtrise approfondie du développement Android (Kotlin/Java, Android SDK, frameworks UI), y compris la conception d’API, la modélisation de données et la conception de systèmes pour les…
Added 2 months ago
Java Full Stack Developer - Assistant Vice President
Citi
Remote, Canada
Full-time · Remote
The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application…
Added 3 months ago
Automation QA Lead
Kumaran Systems
Toronto, Ontario
Full-time
Seeking a QA Automation Senior / Lead with deep expertise in test automation, quality engineering, and AI-powered development tools, particularly GitHub Copilot. This role will lead the…
Added 3 months ago
QA Automation Senior Manager
Kumaran Systems
Toronto, Ontario
Full-time
We are seeking a highly experienced and strategic Senior Manager – QA-Automation to lead and scale enterprise-wide quality engineering practices within a fast-paced banking environment.…
Added 2 months ago
Développeur(-euse) de logiciels sénior(e) (contenu) / Senior Software Development Engineer
Expedia
Montreal, Quebec · Canada - Quebec - Montreal
Full-time
Développeur(-euse) de logiciels sénior(e) (contenu)
Added 25 days ago
Crypto Platform Engineer
Scotiabank
Toronto, ON
Provide technical mentorship to Senior Associate Crypto Platform Engineers, sharing best practices for working with Crypto Operations and Application teams.
Added 14 days ago
Principal IT Software Developer
Open Text Corporation
Waterloo, ON
Other
The Principal Developer, IT – System Integrations is a senior technical leader responsible for the design, development, and evolution of enterprise integration solutions across complex,…
Added 25 days ago
Senior Software Enginner- Global Payments Engineering
Scotiabank
Toronto, ON · Scarborough, ON
Familiar with languages, frameworks, and databases (such as Java/Spring, Node.js/Express.js, Python, MySQL, PostgreSQL, MongoDB, DB2)

eBay

Sr. Software Engineer, Auth Tech

Remote, Canada

Pay: C$118,000 - C$157,500
Job type: Full-time
Workplace: Remote
Experience: Experience: 6+ years of advanced software development experience (or 5+ with a Master’s degree or equivalent professional experience) in building large-scale distributed systems.
Posting language: English
Posted: Jul 7, 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.

Senior Backend Software Engineer

About the team:

Authenticity Guarantee is an important initiative at eBay where a select category of items are authenticated by professional authenticators to increase buyer confidence and satisfaction. The Authentication Technology team is responsible for building software for orchestrating the authentication process and storing high-value items. The team is also responsible for building software for warehouse operations, including integration with custom hardware, RFID readers, and Android-based mobile devices.

About the role:

We are seeking a talented and motivated Senior Backend Software Engineer to design, develop, and maintain the core services that power our authentication platform. In this role, you will lead the architecture of distributed systems, ensure high availability and performance, and drive operational excellence through cloud-native best practices. You will work closely with product managers, cross-functional engineering teams, and DevOps to deliver robust, scalable solutions on Google Cloud Platform.

Responsibilities:

System Design & Architecture: Define, design, and implement complex, multi-tier distributed software systems. Participate/lead architectural discussions and produce high-quality design documentation.
Backend Development: Develop and maintain scalable, high-performance services using Java/Spring Boot. Create and evolve robust RESTful and GraphQL APIs for internal and external integrations.
Cloud & DevOps: Lead the deployment of services on Google Cloud Platform (GCP). Implement and maintain CI/CD pipelines (e.g., GitHub Actions, Cloud Build) and embrace Infrastructure-as-Code (IaC) principles.
Operational Excellence: Improve system reliability, observability, and performance. Troubleshoot production issues and participate in incident management.
Leadership: Mentor junior team members, conduct rigorous code reviews, and drive engineering standards across the team.

Required Qualifications:

Experience: 6+ years of advanced software development experience (or 5+ with a Master’s degree or equivalent professional experience) in building large-scale distributed systems.
Core Backend Expertise: Deep expertise in Java/J2EE and Spring Boot. Solid understanding of object-oriented design, design patterns, and caching mechanisms.
API Proficiency: Extensive hands-on experience designing and developing APIs using REST and GraphQL.
Cloud & Data: Proven experience working in a distributed cloud-native environment (GCP preferred). Strong knowledge of relational and NoSQL database design, data modeling, and performance tuning.
Engineering Practices: Proficient in professional software engineering practices, including CI/CD, automated testing (unit/integration), source control (Git/GitHub), and code quality standards.

Nice to Have:

Experience with containerization and orchestration (Docker, Kubernetes/GKE).
Familiarity with event-driven architectures and distributed processing.
Experience with infrastructure automation and monitoring tools (Cloud Monitoring, Logging, Terraform).
Understanding of warehouse operations, logistics, or high-value item authentication.
Basic familiarity with front-end technologies (React) if needed for cross-team collaboration.

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 and develop scalable backend services for the authentication platform using Java and Spring Boot on GCP. Lead the architecture of distributed systems and drive operational excellence through CI/CD and cloud-native practices.

Requirements

Requires 6+ years of experience in large-scale distributed systems with deep expertise in Java, Spring Boot, and API design. Proficiency in GCP, database modeling, and professional software engineering practices is essential.

Skills

Java
Spring Boot
Distributed Systems
REST API
GraphQL
Google Cloud Platform
CI/CD
NoSQL
Relational Databases
System Design
Infrastructure-as-Code
Object-Oriented Design

Benefits

Target Bonus
Restricted Stock Units
Medical Insurance
Financial Benefits
RRSP Eligibility
Paid Time Off
Parental Leave

Visa sponsorship

Not detected in the job text

Keywords

Java
J2EE
Spring Boot
REST
GraphQL
Google Cloud Platform
GCP
CI/CD
GitHub Actions
Cloud Build
Infrastructure-as-Code
Docker
Kubernetes
GKE
Event-Driven Architecture
Terraform
Cloud Monitoring
Cloud Logging
React
Distributed Systems
NoSQL
Relational Databases
System Architecture
Backend Development
Authentication Technology
Warehouse Operations
RFID
Android

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