Senior Java Backend Engineer | Spring Microservices & APIs

Jobtailor; Toronto; On-site; CAD 110,000 - 150,000; Full time

Job summary

Jobtailor is seeking a senior backend engineer to design, develop and enhance scalable applications using Java and Spring-based technologies. You will build RESTful APIs and microservices for high-volume, business-critical systems and collaborate across design, development, testing, and production support.

You will apply OOP, design patterns, work with SQL and cloud-native architectures, participate in code reviews and automated tests, and help improve engineering practices and delivery.

Qualifications

• Bachelor's degree in CS, engineering or related discipline or equivalent practical experience.
• 5+ years of professional software development experience with Java backend.
• Strong Spring and Spring Boot experience and REST API design.
• Experience with relational databases, SQL and core database concepts.
• Experience with Git-based source control and modern development practices.
• Experience with automated testing, code reviews and Agile delivery.
• Strong debugging and analytical skills; effective in cross-functional teams.
• Banking/payments/financial services experience and high-volume systems.
• Cloud-native development, event-driven or distributed architectures.
• Experience with AI-assisted development tools (e.g., Copilot) is a plus.

Responsibilities

• Design, develop and enhance scalable backend applications and services using Java and Spring-based technologies.
• Build and maintain APIs and microservices supporting high-volume, business-critical applications.
• Work across solution design, development, testing, code review and production support.
• Collaborate with developers, BSA, Tech Leads and stakeholders to translate requirements into technical solutions.
• Apply object-oriented design principles, engineering practices and design patterns.
• Develop and integrate RESTful APIs and services within complex enterprise environments.
• Work with relational databases and data persistence technologies.
• Participate in code reviews, automated testing, debugging and performance optimization.
• Contribute to continuous improvement of engineering practices, development processes and delivery effectiveness.
• Use modern development tools and explore AI-assisted engineering techniques.
• Communicate with client and internal teams in a collaborative delivery environment.

Skills

Java Development

Spring Framework

REST API Development

Relational Database Management

Agile Software Delivery

Backend Application Development

Microservices Architecture

Object-Oriented Programming

SQL

Automated Testing

Code Review

Debugging

Performance Optimization

Design Patterns

Cloud-Native Application Development

Problem-Solving

Analytical Skills

Communication

Collaboration

Education

Bachelor's Degree in Computer Science

Engineering or Related Discipline

Tools

Git

AI-Assisted Development Tools

Spring Boot

Modern Development Tools

Job description

Jobtailor is seeking a senior backend engineer to design, develop and enhance scalable applications using Java and Spring-based technologies. You will build RESTful APIs and microservices for high-volume, business-critical systems and collaborate across design, development, testing, and production support.

You will apply OOP, design patterns, work with SQL and cloud-native architectures, participate in code reviews and automated tests, and help improve engineering practices and delivery.