Senior Java Software Engineer

Iris’s Fortune 100 direct client is looking for Senior Java Developer . Please find below Job description and share me your updated resume at [email protected] .

Position: Senior Java Developer

Location: Toronto Ontario

Key Responsibilities:

• Design, develop, and maintain low-latency, high-throughput Java applications using Java 17+ while adhering to OOP principles, SOLID principles, and industry-standard design patterns.
• Build scalable and resilient backend services using Spring Boot and Spring Framework, ensuring optimal performance, maintainability, and security.
• Develop highly concurrent systems utilizing multithreading, thread pools, synchronization mechanisms, locks, atomic operations, and the java.util.concurrent framework.
• Analyze and optimize application performance by identifying and resolving race conditions, deadlocks, memory leaks, garbage collection issues, and latency bottlenecks.
• Design and implement efficient database solutions, including complex SQL queries, indexing strategies, transaction management, and query performance tuning across Oracle, MySQL, or SQL Server.
• Develop event-driven and batch processing solutions using Spring Data, Spring Batch, Spring Integration, and transaction management frameworks.
• Work extensively in Linux/Unix environments, performing system administration tasks, shell scripting, process monitoring, troubleshooting, and performance analysis.
• Build and maintain CI/CD pipelines using Jenkins, enabling automated build, testing, deployment, and release management through Pipeline-as-Code (Jenkinsfiles).
• Collaborate with cross-functional development teams using Git-based version control systems, following branching strategies, code reviews, merging, rebasing, and repository management best practices.
• Monitor and optimize application performance across infrastructure, JVM, database, and network layers to meet stringent SLA, throughput, and response-time requirements.
• Integrate AI/ML capabilities into enterprise applications by supporting model deployment, inference workflows, data preprocessing, and production integrations where applicable.
• Participate in architecture discussions and code reviews, contributing to the design of high-performance distributed systems with a focus on scalability, reliability, observability, and operational excellence.

About Iris Software Inc.

With 4,000+ associates and offices in India, U.S.A. and Canada, Iris Software delivers technology services and solutions that help clients complete fast, far-reaching digital transformations and achieve their business goals. A strategic partner to Fortune 500 and other top companies in financial services and many other industries, Iris provides a value-driven approach - a unique blend of highly-skilled specialists, software engineering expertise, cutting-edge technology, and flexible engagement models. High customer satisfaction has translated into long-standing relationships and preferred-partner status with many of our clients, who rely on our 30+ years of technical and domain expertise to future-proof their enterprises. Associates of Iris work on mission-critical applications supported by a workplace culture that has won numerous awards in the last few years, including Certified Great Place to Work in India; Top 25 GPW in IT & IT-BPM; Ambition Box Best Place to Work, #3 in IT/ITES; and Top Workplace NJ-USA.