Senior Java Software Engineer

Iris's Fortune 100 direct client is looking Java Backend Developer. Please find below Job description and share me your updated resume at [email protected]. Job Title: Java Backend Developer Location: Mississauga, ON (Hybrid, 4 days onsite in a week) Technical Skills Core Java Java 17/21, OOP, Collections, Streams, Multithreading & Concurrency, Completable Future, JVM tuning, Garbage Collection, performance optimization, modern features (Records, Sealed Classes, Virtual Threads preferred) Spring Spring Boot 3.x, Spring Framework 6, MVC, Data JPA, Security, AOP, Validation, Actuator, Profiles, Caching Microservices REST APIs, versioning, service communication, Resilience4j (circuit breaker, retry, bulkhead), rate limiting, distributed tracing, health checks, configuration management

Develop and maintain backend services using Java and the Spring ecosystem for a Fortune 100 client. Focus on building scalable microservices and optimizing system performance.

Requires deep expertise in modern Java (17/21) and Spring Boot 3.x. Candidates must be proficient in microservices architecture, REST APIs, and performance tuning.

• REST APIsPreferred

Identified from the job description. Confirm important requirements above.

• Core Java
• Java 17/21
• Spring Boot 3.x
• Spring Framework 6
• Microservices
• REST APIs
• JVM Tuning
• Garbage Collection
• Multithreading
• Concurrency
• Spring Security
• Spring Data JPA
• Resilience4j
• Distributed Tracing
• OOP
• Collections

• Software
• Technology
• Engineering

Minimum experience

5+ years

Apply by

Sep 10, 2026

Posting language

English

Working hours

40 hours per week

Office presence

4 days per week

Seniority

Mid-Senior level

Application method

Direct apply is available