Senior Full Stack Application DeveloperWellnessLiving • Hybrid Thornhill, Canada

Senior Full Stack Application Developer

WellnessLiving • Hybrid Thornhill, Canada

Il y a 6 jours

Type de contrat

Temps plein

Télétravail

Description de poste

Responsibilities

Full-Stack Application Development

Design, develop, and maintain production-grade full-stack applications using React , Node.js , and Java / Spring Boot
Build modular, reusable frontend components aligned with design systems , accessibility standards, and responsive UX best practices
Develop secure, scalable RESTful and event-driven APIs , ensuring performance, reliability, and backward compatibility

Microservices, DDD & Event-Driven Systems

Implement microservices aligned to business domains and bounded contexts

Contribute to domain-driven design (DDD) discussions and translate domain models into working services

Design and implement event-driven workflows using messaging or streaming platforms (e.g., Kafka, Kinesis, SNS / SQS)

Apply patterns such as idempotency , event versioning , and eventual consistency

Implement and integrate modern authentication and authorization solutions using OAuth2, OpenID Connect (OIDC), and JWT

Work hands-on with identity platforms such as Auth0 and / or FusionAuth

Design role-based and permission-based access controls suitable for multi-tenant SaaS environments

Build and deploy services using Docker, Kubernetes , and AWS

Own services throughout their lifecycle : CI / CD, deployment, monitoring, and production support

Use infrastructure-as-code and automated pipelines (e.g., GitHub Actions, Terraform / CloudFormation)

Implement logging, monitoring, and alerting using tools such as Datadog, ELK, or Splunk

Write clean, testable, and maintainable code with appropriate unit, integration, and contract testing

Participate in code reviews, architecture reviews, and technical decision-making

Collaborate cross-functionally with Product, UX, QA, and Platform teams in an Agile environment

Mentor junior engineers and help raise overall engineering standards

AI-Augmented Development

Leverage AI-assisted development tools (e.g., Copilot, ChatGPT, internal AI tools) to improve productivity, code quality, and learning

Apply engineering judgment to validate, refactor, and test AI-assisted outputs

Use AI responsibly for tasks such as scaffolding, refactoring, test generation, and documentation, and not as a substitute for engineering fundamentals

Required Qualifications & Experience

Bachelor’s degree in computer science, Engineering, or equivalent practical experience

5+ years of hands-on full-stack development experience in production environments

Strong experience with React , including Hooks, Context, and component-driven architecture

Proficiency in JavaScript / TypeScript , HTML5, CSS3 / SASS, and modern frontend tooling

Hands-on experience building API-first microservices using Java (Spring Boot) , Node.js , and / or Python (FastAPI) , with a strong emphasis on contract-first design (OpenAPI), backward compatibility, and service evolution

Practical experience with microservices architectures , including service decomposition and inter-service communication

Strong understanding of REST, OAuth2, OIDC, JWT , and API gateway patterns

Experience with Docker and Kubernetes in real production systems

Experience with cloud platforms (AWS preferred) and CI / CD pipelines

Working knowledge of relational and NoSQL data stores (e.g., MySQL, Redis, MongoDB, DynamoDB )

Experience with monitoring, logging, and observability in distributed systems

Comfortable working in Agile teams (Scrum / Kanban)

Nice to Have

Experience with Event Streaming / Messaging platforms (Kafka, Kinesis, SNS / SQS)

Exposure to Micro Frontend architectures (Module Federation, single-spa)

Experience with multi-tenant and white-label SaaS platforms

Familiarity with PHP-based legacy systems and modernization efforts

Knowledge of accessibility (WCAG) and internationalization

Experience in healthcare, fitness, or regulated SaaS environments

Please note that only those selected for an interview will be contacted.

We appreciate you taking the time and look forward to reviewing your application!

WellnessLiving is proud to be an equal opportunity employer. We base employment decisions solely on qualifications, experience, and business needs. We do not tolerate discrimination or harassment of any kind. All qualified applicants will receive consideration without regard to race, color, religion, creed, gender, gender identity or expression, sexual orientation, national origin, disability, age, genetic information, veteran status, marital or family status, or any other status protected by applicable laws.

We utilize AI to generate summaries of interview notes as part of our candidate evaluation process. This helps ensure a fair and consistent review while maintaining a human-centered hiring approach.

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Senior Application Developer • Hybrid Thornhill, Canada

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