Java Backend Developer- Lead

Mississauga, ON
On-site
Posted Sep 27, 2026
1 position

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Employment type: Full-time
Experience level: Senior · 5+ years
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level
Application method: Direct apply is available

Job summary

Design, develop, test, and deploy Java microservices and RESTful APIs using Spring and Spring Boot, while maintaining application quality, security, performance, and scalability. Collaborate with cross-functional and DevOps teams, resolve production issues, contribute to Agile ceremonies, and mentor junior developers.

Job details

Job Title: Java Backend Developer Location:Mississauga-Ontario-CA (Onsite) Employment Type: Fulltime About Smart IT Frame: At Smart IT Frame, we connect top talent with leading organizations across the USA. With over a decade of staffing excellence, we specialize in IT, healthcare, and professional roles, empowering both clients and candidates to grow together. Key Responsibilities: Design and develop robust Java applications leveraging Spring and Spring Boot frameworks Build and maintain microservices architectures ensuring high scalability and performance Collaborate with crossfunctional teams to gather and analyze business requirements Implement best coding practices and ensure code quality through thorough testing Work with RESTful APIs and integrate thirdparty services as needed Maintain and improve existing applications by identifying bottlenecks and bugs Document application design architecture and operational procedures Stay updated with emerging Java technologies and propose innovative solutions Roles and Responsibilities Develop test and deploy Java microservices utilizing Spring Boot and related technologies Design and implement RESTful APIs ensuring seamless integration with frontend and other services Collaborate with DevOps teams to support CICD pipelines and automate deployments Troubleshoot and resolve production issues to maintain high system availability Mentor junior developers and share knowledge on Java frameworks and microservices Participate actively in Agile ceremonies including sprint planning daily standups and retrospectives Ensure adherence to security and compliance standards in application development Optimize application performance and scalability based on monitoring and feedback Skills Mandatory Skills : Java, Microservices, Spring, SpringBoot 📩 Apply today or share profiles at hussain.m@smartitframe.com

What you’ll do

Requirements

The posting requires Java, microservices, Spring, and Spring Boot skills, along with experience developing RESTful APIs and scalable applications. It also emphasizes testing, troubleshooting, security and compliance, collaboration with DevOps teams, and mentoring junior developers.