Position: Full Stack Java Developer

Location: Toronto, ON (2-3 days Hybrid)

Contract: Long term

We are looking for a Full Stack Java Developer to build and enhance modern web applications using Angular on the frontend and Java/Jakarta EE on the backend. The role also requires working knowledge of databases and practical familiarity with AI-assisted development tools and LLM application components (e.g., vector databases and orchestration frameworks). You will collaborate with product, QA, and DevOps teams to deliver secure, testable, container-ready solutions.

- Develop and maintain SPA features using Angular 17+, TypeScript 5.x, and Angular Material / Material Design.
- Build backend services using Java 17+ and Jakarta EE 10 (REST APIs, validation, security, integration patterns).
- Design and implement API contracts, error handling, logging, and performance-conscious services.

Write and maintain automated tests:

Frontend: Jest

Backend: JUnit 5

- Work with databases: create/modify schemas, write queries, tune basic performance, and support migrations.
- Apply AI tools and patterns to improve productivity and/or product features:
- Use AI coding assistants (e.g., GitHub Copilot, Windsurf/Devin) effectively and responsibly.
- Integrate or support LLM-based capabilities using vector databases (e.g., ChromaDB or similar) and orchestration frameworks (LangChain or Haystack).
- Use Git for version control and participate in code reviews and branching workflows.




- Build and package applications using Maven containerize and run services with Docker.
- Collaborate in agile ceremonies, contribute to estimations, and communicate progress and risks clearly.
- Troubleshoot issues across the stack (UI, API, database, container/runtime) and contribute to root-cause analysis.
- Develop and maintain SPA features using Angular 17+, TypeScript 5.x, and Angular Material / Material Design.
- Build backend services using Java 17+ and Jakarta EE 10 (REST APIs, validation, security, integration patterns).
- Design and implement API contracts, error handling, logging, and performance-conscious services.

Qualified experience delivering full stack applications with:
- Angular 17+, TypeScript 5.x, Angular Material
- Java 17+, Jakarta EE 10
- Testing experience with Jest (frontend) and JUnit 5 (backend).
- Working knowledge of databases (relational preferred): SQL querying, joins, indexes basics, transactions, and data modeling fundamentals.

AI enablement experience/knowledge

- Handson familiarity with GitHub Copilot and/or Windsurf/Devin
- Understanding of vector databases (e.g., ChromaDB or similar) and typical RAG flows
- Exposure to LangChain or Haystack concepts (chains/pipelines, retrieval, prompt management)
- Strong fundamentals in HTTP/REST, JSON, authentication/authorization basics, and secure coding practices.
- Proficiency with Git, Maven, and Docker in day-to-day development.

Nice to Have

- Oracle / PL/SQL
- Spring Batch
- Python / FastAPI
- OpenShift / Kubernetes
- Jasper Reports
- Redis

📌 Full Stack Java Developer (Toronto)
🏢 apptoza
📍 Toronto