Sr Backend Developer

Job summary

Lead backend development and technical delivery, including designing scalable application architectures, building and maintaining APIs and persistence layers, and resolving complex technical issues. Guide and mentor developers, conduct code reviews, uphold quality standards, and collaborate with architecture, QA, DevOps, vendors, and project teams.

Job details

Job Title: Sr Backend Developer Location: Brampton, ON (100% onsite only) Employment Type: Contract Pay Rate: CAD$45/HR INC Required Skills, Experience And Qualifications We are seeking a proficient 5 to 8 years Java Backend Senior Developer in Java Spring Boot. Person to have strong Java technical skills to enhance an existing application s architecture as well as create applications architecture from scratch.Expertise a strong understanding of scalable microservices architecture. Should be able to lead technical team, remove technical impediments and help in estimations, code reviews. Must to have experience in utilizing AI assisted development tools ( Co-pilot or cursor). The role involves creating maintainable REST and SOAP APIs extending. The developer will build data persistence layers using Spring Data JPA Hibernate. Additional duties include containerizing applications with Docker deploying to Kubernetes automating builds with Azure DevOps securing APIs using OAuth JWT and TLS implementing access control optimizing performance with Redis and async processing and using Azure services like Blob Storage and Managed Identity. The candidate will collaborate with frontend QA and DevOps teams in an Agile Scrum environment. Strong technical, analytical and problem-solving skills Excellent verbal and written communication skills Ambitious with an ability to take initiative You should be passionate about quality and writing clean, reusable, readable code that scales and performs well Accountabilities Routinely advise on-site or vendor developers/implementation teams on coding, design, and testing/debugging standards Understand and help refine un-stated requirements Routinely deal with and resolve difficult technical issues Aid in the development of architectural framework and design Be responsible for the quality of deliverables via sign-off and problem tickets Evaluate and introduce new tools and techniques to the development team Manage technical issues and the work of other developers Act as liaison with various groups including architecture, vendors, and other project teams Assume technical leadership role on projects Exercise leadership through superior technical and domain knowledge Conduct regular code reviews Proactively identify areas for improvement, seek solutions and make recommendations Lead initiatives & acts as a change agent (embraces change and helps other to embrace it) Listen actively & suspend judgment Foster a spirit of creative collaboration by giving team members a common focus Help establish and maintain quality software architecture and implementation design for products Provide support to the entire project team in order to deliver Provide mentorship to development team Disclaimer: AI tools may assist in the recruitment process; however, all hiring decisions are made by the recruitment team based on a comprehensive evaluation of candidates.

What you’ll do

Lead backend development and technical delivery, including designing scalable application architectures, building and maintaining APIs and persistence layers, and resolving complex technical issues. Guide and mentor developers, conduct code reviews, uphold quality standards, and collaborate with architecture, QA, DevOps, vendors, and project teams.

Requirements

Requires 5–8 years of Java backend development experience, strong Java and Spring Boot skills, and expertise in scalable microservices and API development. Candidates should have experience with AI-assisted development tools, cloud and container technologies, security, performance optimization, technical leadership, and clear communication.

Listed skills

• Kubernetes · Preferred
• REST APIs · Preferred
• Redis · Preferred
• Docker · Preferred
• Java · Preferred
• Spring Boot · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• Java
• Spring Boot
• Microservices Architecture
• REST APIs
• SOAP APIs
• Spring Data JPA
• Hibernate
• Docker
• Kubernetes
• Azure DevOps
• OAuth
• JWT
• TLS
• Redis
• Azure Services
• Technical Leadership

Job areas

• Software
• Technology
• Management & Leadership

More jobs from Aarorn Technologies Inc