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, Business Systems Analysts, Technical Leads and stakeholders to translate business 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

Requirements 5+ years of skilled software development experience, with strong hands-on experience developing backend applications in Java

Strong experience with Spring and Spring Boot

Experience designing and developing REST APIs and microservices

Strong understanding of object-oriented programming, software design principles and common design patterns

Experience working with relational databases, SQL and core database concepts

Experience with Git-based source control and modern software development practices

Experience writing and maintaining automated tests and participating in code reviews

Strong debugging, problem-solving and analytical skills

Experience working within Agile software delivery teams

Strong communication and collaboration skills,



with the ability to work effectively with both technical and business stakeholders

Bachelor's degree in Computer Science, Engineering or a related discipline, or equivalent practical experience

Previous experience within banking, payments or financial services

Experience building or supporting high-volume, transaction-oriented systems

Experience with cloud-native application development and modern enterprise architectures

Experience with messaging, event-driven architectures or distributed systems

Hands-on experience using AI-assisted software development tools such as GitHub Copilot, Cursor, Claude Code or similar

Interest in applying AI across requirements analysis, solution design, coding, testing, debugging and code review

Experience working in consulting or client-facing delivery environments

Core Competencies Demonstrates expertise in designing and developing scalable backend applications using Java and Spring technologies, with a strong focus on RESTful APIs and microservices. Proven ability to collaborate effectively with cross-functional teams and apply modern software development practices, including Agile methodologies.

Highest-signal resume keywords Java Development

Spring Framework

REST API Development

Relational Database Management

Agile Software Delivery

ATS Optimization Keywords Hard Skills Backend Application Development

Microservices Architecture

Object-Oriented Programming

SQL

Automated Testing

Code Review

Debugging

Performance Optimization

Design Patterns

Cloud-Native Application Development

Soft Skills Problem-Solving

Analytical Skills

Communication

Collaboration

Certifications &

Qualifications Bachelor's Degree in Computer Science

Engineering or Related Discipline

Industry Keywords Banking

Payments

Financial Services

High-Volume Systems

Consulting

Tools & Technologies Git

AI-Assisted Development Tools

Spring Boot

Modern Development Tools

📌 Senior Java Backend Developer (Toronto)
🏢 Jobtailor
📍 Toronto