Top Java Developer Jobs in Toronto

Administer, monitor, and support Java applications and Genesys Cloud. Provide production troubleshooting, minor bug fixes and enhancements, and act as primary POC for Java apps. Develop/support microservices using Java and Spring Boot, perform analysis of system behavior, and apply problem-solving and diagnostics to maintain service quality.

Design, implement, and deploy Java/Spring Boot microservices and single-page applications for an event-driven deal management platform. Participate in coding, peer reviews, CI/CD, performance tuning (MongoDB), testing (TDD/BDD), troubleshooting, and lead agile delivery efforts with product and DevOps partners.

Design, build, and maintain cloud-native microservices and scalable search/data ingestion systems. Lead architecture, optimize database performance, implement event-driven solutions, mentor engineers, and collaborate across product teams to deliver reliable, production-ready cybersecurity platform features.

Develop and maintain Java backend services for AutoOps, integrate ELK stack and third-party APIs, implement RESTful services, write tests, investigate and resolve performance, concurrency, and stability issues, and support cross-functional teams while leveraging AI tools to accelerate development and debugging.

The role involves advanced Java development, focusing on object-oriented programming, multi-threading, SQL database development, and optimization.

Develop and maintain code for software systems and applications, design user-friendly interfaces, conduct testing, and document processes.

Develop and integrate software applications, conduct testing, write documentation, interact with clients, and travel for meetings.

The Senior Java Developer is responsible for designing security software, providing technical leadership, defining software features, and offering development support.

Lead the development and implementation of application systems, mentor developers, and drive technical excellence in software solutions supporting Citi's global operations.

Lead and implement scalable backend Java applications for a global client onboarding platform. Design, develop, test, and deploy microservices and RESTful APIs; improve performance and reliability; mentor mid-level developers; partner with stakeholders to integrate systems and deliver compliant, secure solutions.

Lead application systems analysis and programming to enhance the Onboarding Master Central platform, mentor developers, and ensure technical excellence.

The Principal Software Data Engineer will design, develop, and maintain data platforms and pipelines, mentor teams, and drive technical excellence in data solutions, focusing on microservices architecture and scalability.

Lead design, development, and deployment of high-performance Java/Spring applications with MongoDB. Integrate AI tools, agents, and Google ADK, implement CI/CD, mentor developers, and resolve complex system and business problems to deliver scalable microservices and APIs.

Lead design and development of middleware and microservices using Java and Spring Boot; optimize database interactions (Oracle, SQL, MongoDB); implement CI/CD with AI-driven testing and security; mentor engineers; integrate AI tools for code generation, testing, anomaly detection, and risk analytics; collaborate with cross-functional teams to deliver high-quality software.

Lead development and design of enterprise Java applications across frontend and backend. Drive architecture, coding standards, testing, and deployment; resolve complex problems; integrate systems; mentor mid-level developers; and ensure regulatory and policy compliance.

Design, develop, and maintain enterprise backend Java applications. Participate in analysis, design, testing, deployment, and support; optimize performance, secure systems, integrate with messaging platforms, mentor junior staff, and ensure compliance with policies and controls.

Design, architect and implement large-scale risk and pricing microservices for counterparty credit risk. Build on-demand pricing, streaming and caching solutions, deliver P&L and risk projects, and create tooling to improve team efficiency while collaborating with trading, finance and global stakeholders.

Build and enhance backend pricing and risk services for front-office trading. Collaborate with sales, trading, and quant teams to design scalable, high-performance systems, integrate downstream consumers, and maintain testable, observable CI/CD pipelines while learning financial product workflows.

The Java developer will analyze business requirements, assist with code reviews, and collaborate with a distributed agile team on various features.

The Java Developer with Angular will analyze business requirements, propose design solutions, assist with code reviews, and collaborate with teams in an agile environment.

Design and build low-latency, high-throughput backend services and REST/GraphQL APIs using Core Java and Spring. Implement full-stack features with React/JavaScript, write SQL for real-time analysis, apply CI/automation testing, and work in microservices containers on cloud platforms (GCP/AWS). Collaborate in cross-functional agile teams to deliver product roadmap initiatives.

As a Senior Software Engineer, you will develop and maintain software for healthcare applications, utilizing big data technologies and programming languages, ensuring high-quality code and system performance.

Lead technical design and delivery of scalable systems, mentor engineers, and ensure coding standards while building cloud-native applications and architectures.

The Java Full Stack Developer leads applications systems analysis, resolves complex problems, develops standards for coding, and coaches mid-level developers while ensuring compliance and risk assessment.

Lead and manage Java development initiatives, ensuring high-quality application solutions while mentoring teams and overseeing architectural designs. Drive Agile delivery processes and system integrations while collaborating with stakeholders.