Duration: 12 months (possibility of extension) Location: Hybrid - 2 days in office - Monday and Tuesday (Downtown Toronto - 1 day and Mississauga or Scarborough -1 day) We are looking for an experienced Java Development Lead with deep Spring Boot expertise to join our team.

The candidate will lead the design, development, and maintenance of enterprise-grade microservices, with a heavy focus on Oracle SQL-driven business logic.

This role requires strong systems thinking, technical leadership, and the ability to guide a team while remaining hands-on in development.

This role will lead 5-10 people Must Haves 7+ years of hands-on Java development experience Minimum 3+ years with Spring Boot microservices in a production environment Demonstrated Oracle SQL expertise with a strong focus on query design and performance tuning Prior experience in a Development Lead or Senior Developer capacity is required Experience leading code reviews, technical discussions, and delivery planning Deep knowledge and technical proficiency gained through extensive education and business experience Post-secondary degree in Computer Science, Engineering, or equivalent combination of education and experience Technical Skills - In-Depth Proficiency Required Language: Java (8+, ideally 11/17) Framework: Spring Boot, Spring MVC, Spring Data JPA, Spring Security Database: Oracle DB - complex SQL, stored procedures, query optimization ORM / Data Access: Hibernate / JPA, JDBC Deployment: Apache Tomcat, WAR/JAR packaging Architecture: RESTful APIs, Microservices design patterns Version Control: Git, Git

Hub - branching strategies, PR reviews Build Tools: Maven or Gradle Project Tooling: JIRA, Confluence Testing: JUnit, Mockito,



integration testing Operating System: Unix/Linux - basic command line navigation, file permissions, process management, log inspection Leadership and Soft Skills Systems thinking - ability to reason about how changes ripple across services and teams Proven dev lead experience including task breakdown, sprint planning, team guidance, and stakeholder communication Solid verbal and written communication skills Analytical and problem-solving skills with a data-driven mindset Ability to influence technical direction and drive alignment across teams Strong collaboration skills with the ability to work across functions and seniority levels Technical writing and documentation for architecture decisions and runbooks Nice to Have Cloud platform knowledge (AWS, Azure) - familiarity with cloud-native deployments, managed services, or containerized environments is an asset Experience with AI orchestration platforms, agent frameworks, or multi-model architectures Banking/Financial Industry experience Responsibilities Lead the design, development, and maintenance of Java Spring Boot microservices deployed on Apache Tomcat Write, optimize, and review complex Oracle SQL queries that drive core business logic Own technical design discussions and drive architecture decisions across microservices Enforce code quality standards through Git





Hub Pull Request reviews and development best practices Break down business requirements into actionable technical tasks; manage delivery tracking in JIRA and document decisions in Confluence Mentor and guide junior and intermediate developers on Java/Spring Boot standards and patterns Identify and resolve performance bottlenecks in SQL queries and service layers Collaborate with cross-functional teams including product, QA, and infrastructure across the full development lifecycle Apply systems thinking to assess upstream and downstream impacts of changes across services Oversee automated testing strategies and provide direction on test coverage and quality gates Manage end-to-end software development lifecycle from design to deployment and post-release maintenance Take measured risks while protecting the organization by adhering to risk management frameworks, policies, and applicable standards Design and implement integrations with GenAI/LLM APIs (e.g., OpenAI, Anthropic Claude, Azure OpenAI Service) Architect scalable patterns for AI-augmented features including prompt management, context handling, token optimization, and response parsing Evaluate and integrate AI SDKs, and retrieval-augmented generation (RAG) pipelines into existing service architectures Establish guardrails, content filtering, and responsible AI practices for GenAI-powered features in production systems Drive adoption of AI-assisted development tools (e.g., Git

Hub Copilot, Claude Code) across the team to improve developer productivity and code quality Interview process: 1 hour Teams & 1-2 hours in person How many rounds: 2 Technical assessment: Yes

📌 Senior Java Developer Lead to lead enterprise microservices development using Java, Spring Boot, and Oracle SQL (Toronto)
🏢 S.i. Systems
📍 Toronto