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Added 1 month ago
Technical Lead, Software
Palitronica Inc.
Waterloo, ON
$100,000 to $140,000 CAD / year
Full-time
7+ years of professional software development experience, including substantial backend and full-stack delivery experience, preferably using C++, C#, or Java.
Added 1 month ago
Senior Software Engineer
Clutch
Toronto, ON
$160,000 to $200,000 USD / year
Full-time
Continuously improve the systems, tools, and developer experience that power Clutch.
Added 1 month ago
Senior Software Engineer, Full-Stack Applications - Ratings Technology
Fitch Ratings
Toronto, ON
Full-time
…architecture and implementation of net-new applications using Java/Springboot, Python, and REACT that integrate cutting-edge generative AI and ML capabilities; own technical decisions that…
Added 1 month ago
Senior Software Engineer (AI & Full Stack)
Fable
Canada
Full-time
Improve developer experience through automation, tooling, and reusable engineering patterns.
Added 1 month ago
Senior Development Consultant – Migration & Integration
CGI
Toronto, ON
Full-time
8+ years of experience developing enterprise software solutions using Java or similar languages.
Added 1 month ago
Stagiaire en Développement Cloud, Intern Cloud Developer – FCAP
Autodesk
Montreal, QC
Full-time
Posséder une expérience en développement logiciel backend ou orienté objet, de préférence avec Java ou un langage similaire (Kotlin, C#, Python ou Go).
Added 1 month ago
Stagiaire en Développement Cloud, Intern Cloud Developer – FCAP
Autodesk
Montreal, QC
Full-time
Posséder une expérience en développement logiciel backend ou orienté objet, de préférence avec Java ou un langage similaire (Kotlin, C#, Python ou Go).
Added 1 month ago
Staff Software Engineer
Equifax
Toronto, ON · CAN - Ontario - Toronto
Full-time
Lead the Architecture design and development of complex , scalable and resilient full-stack applications , with a primary focus on Java , Spring Boot, and modern front-end frameworks.
Added 1 month ago
Senior Test Automation Engineer
PureFacts Financial Solutions
Toronto, ON
$100,000 to $120,000 CAD / year
Design, develop, and maintain scalable automation frameworks using Java, Python, and Playwright.
Added 1 month ago
Sr. Quality Engineer (contract)
CoreFactor Inc.
ON · Downtown Toronto (Central Bay Street), Ontario
Contract
automation (e.g. data-driven testing) across API and UI
Added 1 month ago
AI Enginering Technical Lead (Permanent)
CoreFactor Inc.
Toronto, ON
Full-time
Strong proficiency in Java, Python and Node.js for backend service integration with CCaaS or AI applications.
Added 1 month ago
Java Developer
Tata Consultancy Services
Mississauga, ON
$90,000 to $110,000 CAD / year
Full-time
Microservices architecture (service decomposition, API contracts)
Added 1 month ago
Senior ISAM Developer
J&M Group
Toronto, ON
Full-time
We are seeking an experienced Senior ISAM Developer with strong expertise in IBM Security Access Manager (ISAM) and Identity & Access Management (IAM). The ideal candidate will have…
Added 13 days ago
Staff FullStack Engineer, Okta Secures AI
Okta
Toronto, ON
Deep expertise in building highly reliable, secure, enterprise-grade software using Java or another type safe programming language.
Added 1 month ago
Java Backend Integration Developer (Spring Boot & Azure)
Recrute Action
ON · Toronto, Waterloo, Ontario
Contract
Backend Integration Developer (Java/Spring Boot)
Added 1 month ago
Software Engineer, Full Stack
Gigi
Toronto, ON
Full-time
…FastAPI, LangGraph and LangChain; TypeScript, Vue and Nuxt; Java and Spring Boot; PostgreSQL, pgvector, Redis and NATS; and…
Added 1 month ago
Backend Engineer – Data Ingestion & APIs, Kitchener, ON
Siemens
Kitchener, ON
Full-time
We are seeking a Backend Engineer to build the ingestion and API backbone of the Canada Physical AI platform. In this role, you will develop services that bring together customer data,…
Added 1 month ago
Project Leader (Business Analyst Research) - Competition ID: 4741
Kwantlen Polytechnic University
Surrey, BC
Full-time
Added 1 month ago
Senior Server Engineer
GamblingCareers.com
Canada
Full-time
Design, build, and maintain scalable backend services using Java (Spring Boot, Hibernate, Dropwizard) and related technologies
Added 1 month ago
Engineering Standards, Lead
Interac Corp.
Toronto, ON · Interac Corp. Head Office
Full-time
Evaluate and recommend shared Java backend libraries, build tooling, third-party frameworks, and backend platform practices that improve consistency, reliability, and developer productivity.
Added 1 month ago
Staff Engineer, API Design & Governance
eBay
Toronto, ON
Full-time
eBay’s Developer Ecosystem team offers resources that help developers create solutions to make buying and selling on eBay faster and easier. The team builds and manages eBay’s Public APIs…
Added 11 days ago
Senior Java Developer - Vice President
Citi
Mississauga, ON
Full-time
We are seeking a talented and passionate Senior Developer to join our Operations Workbench Scrum team. You will be a key contributor to the development of our new, cutting-edge Operations…
Added 1 month ago
Software Developer - Internal Automation
YuJa Inc.
Toronto, ON · North York, Ontario
$80,000 to $90,000 CAD / year
Full-time
We're looking for a Software Developer - Internal Tools who combines strong software engineering fundamentals with hands-on experience managing internal systems and infrastructure. In this…
Added 1 month ago
API Developer
J&M Group
Toronto, ON
Full-time
Strong experience in API Proxy, Shared Flow, and Custom Policy development (JavaScript, Java/Python Callouts).
Added 1 month ago
Spécialiste de l'intégration de données | Senior Integration Developer
Delmar International Inc.
Montreal, QC
Full-time
…Mulesoft) pour convertir les données de ANSI X12 en formats XML, API, SQL, fichier plat, SAP IDoc et vice…

eBay

Staff Engineer, API Design & Governance

Toronto, ON, Canada

Job type: Full-time
Experience: 10+ years of experience in the software industry
Posting language: English
Posted: Aug 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 team:

eBay’s Developer Ecosystem team offers resources that help developers create solutions to make buying and selling on eBay faster and easier. The team builds and manages eBay’s Public APIs and eBay’s world-class Developer Portal, which helps onboard new developers, gets them started with eBay APIs, and answers their questions about our products. APIs are first-class products at eBay. APIs allow our developer community to create powerful experiences and manage their eBay business at scale. Our goal is a large ecosystem of developer applications that contribute to our buyers and sellers.

About the Role:

We are seeking a highly experienced Software Design Engineer to design and build scalable, high-performance systems & APIs that power seamless end-to-end customer experiences.

This is an individual contributor role for a hands-on technical leader who drives architecture, solves complex distributed systems challenges, and partners multi-functionally to deliver customer-first solutions at scale. A key focus of this role is designing clear, scalable, and well-governed APIs and service contracts that enable consistent, high-quality integration across systems.

You will influence system design, internal API standards (REST, GraphQL), and long-term technical strategy while remaining deeply engaged in implementation.

What You’ll Do:

Design and implement scalable, resilient fullstack systems supporting core platform capabilities
Architect high-traffic, distributed systems across multiple domains
Lead the design of robust, intuitive, and evolvable APIs and service contracts
Define and enforce standards for API design, documentation, versioning, observability and governance
Drive clarity and consistency in technical specifications, ensuring they are precise, consumable, and scalable
Write high-quality, maintainable, and performant code
Lead complex technical initiatives end-to-end, from design through production rollout
Apply SOLID principles and advanced design patterns to ensure clean, extensible architectures
Design multi-threaded and highly concurrent systems with strong performance guarantees
Contribute to enterprise architecture decisions and cross-domain technical alignment
Collaborate with Product, UX, Data, and Business teams to translate requirements into scalable technical solutions
Conduct architecture and code reviews to raise engineering standards
Mentor engineers and serve as a technical role model across teams
Proactively identify and resolve system bottlenecks, reliability risks, and scaling challenges

What you will bring:

10+ years of experience in the software industry
Deep expertise in at least one of: Java, Python, or Kotlin
Strong knowledge of software design principles (SOLID) and design patterns
Deep expertise in GraphQL schema composition and evolution, including building user-focused APIs, optimizing query performance, and maintaining backward compatibility at scale.
Proven ability to design and operate GraphQL APIs in large-scale systems, with strong understanding of API architecture (alongside REST/RPC), versioning strategies, and efficient data fetching patterns.
Expert-level understanding of:
- Multi-threading and concurrency
- Distributed systems design
- Enterprise-scale architecture
Demonstrated ability to create clear, consistent, and well-documented service contracts and technical specifications
Experience driving API design standards, consistency, and governance across teams
Experience with agentic coding assistants like claude code, cursor or github copilot
Proven experience building and scaling high-traffic, transaction-heavy systems
Strong understanding of system performance, availability, and observability
Experience working in Agile/Scrum environments

Nice to Have:

Experience with Federated GraphQL architectures (e.g., Apollo Federation or similar)
Experience designing and scaling modern frontend systems using TypeScript/JavaScript with frameworks such as React (or similar)
Experience with microservices and cloud-native architectures
Background in large-scale platforms or multi-tenant architectures
Experience with search systems, recommendation engines, pricing systems, or payment flows
Experience driving technical strategy across multiple team

Technical Leadership Expectations:

Acts as a system-level problem solver - designs for scale, resilience, and long-term maintainability
Champions high-quality API design and treats APIs as long-lived products
Drives clarity, precision, and standardization in system design and specifications
Makes sound architectural trade-offs balancing performance, cost, and development velocity
Customer-obsessed outlook - understands how technical decisions impact performance, reliability, and user experience
Drives technical clarity in ambiguous, high-complexity problem spaces
Sets the standard for engineering quality and operational excellence

Additional Details

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

You will design and build scalable, high-performance systems and APIs while driving architecture and technical strategy. The role involves leading complex technical initiatives, mentoring engineers, and ensuring consistent API standards across the organization.

Requirements

Candidates must have 10+ years of software industry experience with deep expertise in Java, Python, or Kotlin. Strong proficiency in distributed systems, GraphQL schema composition, and API design principles is required.

Skills

Java
Python
Kotlin
GraphQL
REST
API Design
Distributed Systems
Software Architecture
System Design
Concurrency
Multi-threading
API Governance
Microservices
Cloud-native
Agile
Scrum

Visa sponsorship

Not detected in the job text

Keywords

API Design
Governance
GraphQL
REST
Distributed Systems
Java
Python
Kotlin
Microservices
Cloud-native
Software Architecture
Concurrency
Multi-threading
Scalability
Observability
Agile
Scrum
Apollo Federation
TypeScript
React
System Design
Technical Leadership
API Versioning
Service Contracts
Performance Optimization
Enterprise Architecture
Backend Engineering
Fullstack
Ecommerce
Developer Ecosystem

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