Senior Java Consultant

Job Description

Job Title: Java Full Stack Developer
Location: Markham, ON
Model: Hybrid - 3 Days a week (Mon/Tue/Wed Mandatory)

Position Overview:
This role emphasizes Java 17/21 and Spring Boot 3.x, microservices architecture, and AWS cloud deployment, while ensuring compliance with technical standards, governance, risk management, and driving continuous improvement.
Key Responsibilities:
Backend Development (Primary Focus)

• Build scalable, high-performance RESTful APIs using Java 17/21 and Spring Boot 3.x.

• Architect and implement microservices with Spring Cloud (Gateway, Config, Discovery).

• Implement security using Spring Security 6.x (OAuth2, JWT, RBAC), with structured logging and robust error handling.

• Design and optimize schemas; tune queries with Spring Data JPA/Hibernate 6.x for PostgreSQL/MySQL.

• Develop event-driven patterns with Kafka or AWS SNS/SQS; apply caching (Redis/Caffeine) where needed.

• Write unit/integration tests (JUnit 5, Mockito, Testcontainers) and ensure performance/availability (health checks, DR).

• Drive technical governance, code quality, and adherence to architecture standards; lead root-cause analysis for production incidents.
Frontend Development

• Develop responsive UIs with Angular 17+, TypeScript 5.x, HTML5, SCSS, and Angular Material.

• Integrate backend APIs; handle async workflows with RxJS and adopt state management (NgRx or Signals).

• Ensure UI quality with unit tests (Jest/Jasmine) and e2e tests (Cypress).
Cloud & DevOps

• Deploy and operate on AWS (EC2, S3, RDS, Lambda, API Gateway, CloudWatch).

• Implement CI/CD (Jenkins/GitLab CI/AWS CodePipeline) and containerization with Docker.

• Use IaC (CloudFormation/Terraform); monitor and optimize cost/performance.
Collaboration & Best Practices

• Participate in code reviews; maintain coding standards and clear technical documentation.

• Collaborate with Product, Design, QA; work in Agile/Scrum and contribute to roadmap/architecture.

• Champion continuous improvement and process innovation to drive quality and efficiency.
Required Qualifications
Technical Skills (Backend Expertise is MANDATORY)

• Expert-level Java 17/21 & Spring Boot 3.x; deep Spring ecosystem (MVC, Data JPA, Security 6.x).

• Strong microservices architecture with Spring Cloud; REST API design best practices.

• RDBMS expertise (PostgreSQL/MySQL); ORM and query optimization; NoSQL (MongoDB/DynamoDB) a plus.

• Messaging (Kafka, RabbitMQ, AWS SQS/SNS); WebFlux/reactive knowledge preferred.
Additional Skills

• Frontend: Angular 17+, TypeScript; RxJS/Signals; modern build tooling.

• Cloud & Infra: AWS hands-on, Docker; Git; CI/CD practices.

• Experience: 2–4 years professional Java backend development building production systems.

• Soft skills: problem-solving, debugging, communication, teamwork.
Preferred Qualifications

• AWS certifications; Kubernetes/ECS; GraphQL; Serverless (Lambda).

• Monitoring (CloudWatch/New Relic/Datadog); Elasticsearch; Redis/caching.

• Understanding of distributed systems and microservice patterns.
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