Senior Java Backend Developer

Lever, Inc.; Toronto; On-site; CAD 110,000 - 150,000; Full time

Job summary

Electric Mind is seeking a Senior Java Backend Developer in Toronto to join our delivery team for enterprise-scale applications. You will design and enhance backend services using Java and Spring, build RESTful APIs and microservices, and collaborate with stakeholders across the lifecycle.

You will contribute to code reviews, automated testing, and performance tuning in a fast-paced Agile environment. AI-assisted development experience is a plus.

Qualifications

• 5+ years of professional software development experience, focusing on backend Java
• Strong experience with Spring and Spring Boot
• Experience designing and developing REST APIs and microservices
• Strong understanding of OOP and design patterns
• Experience with relational databases and SQL
• Experience with Git-based workflows and modern SDLC
• Experience writing automated tests and participating in code reviews
• Strong debugging and analytical skills
• Experience in Agile teams
• Bachelor’s degree in CS/Engineering or related field

Responsibilities

• Design, develop and enhance scalable backend applications and services using Java and Spring-based technologies
• Build and maintain RESTful APIs and microservices supporting high-volume applications
• Collaborate across the delivery lifecycle including design, development, testing, CI/CD and production support
• Translate business requirements into technical solutions with stakeholders
• Contribute to code reviews and engineering best practices
• Develop with relational databases and data persistence technologies
• Participate in performance optimization and debugging
• Explore AI-assisted engineering techniques to improve productivity

Skills

Java backend

Spring/Spring Boot

REST APIs

Object-oriented design

Relational databases

Git

Automated testing

Agile

Communication

Education

Bachelor’s degree in Computer Science or related

Tools

Git

Job description

AtElectric Mind,Engineeringis where strategy meets action. Our team helps organizations cut through complexity-aligning business ambition with technology execution to unlock real, lasting change.You’llwork alongside curious, driven people tackling high-impact challenges for everyone from scaling startups to global enterprises. Each engagement is different, pushing you to learn, adapt, and grow.

Electric Mind’s Technology Practice brings together deep engineeringexpertise, modern delivery disciplines, and pragmatic architectural thinking to help clients execute complex, mission-critical transformation. We design and implement scalable, secure, high-impact technology solutions that accelerate business outcomes.

We’re looking for a Senior Java Backend Developer to join our team. This opportunity is open to candidates interested in either permanent or contract employment.

You’ll work as part of an experienced delivery team building and enhancing enterprise applications for a large financial services client. This is a hands-on engineering role for someone with strong Java backend expertise who is comfortable working in complex enterprise environments and collaborating closely with technical and business stakeholders.

As an AI-native organization, we’re also looking for engineers who are interested in how AI can improve the software delivery lifecycle. Experience using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code or similar tools is an asset.

While working within a team in Agile environment, you will be:

• Designing, developing and enhancing scalable backend applications and services using Java and Spring-based technologies
• Building and maintaining APIs and microservices that support high-volume, business-critical applications
• Working across the software delivery lifecycle, including solution design, development, testing, code review and production support
• Collaborating closely with developers, Business Systems Analysts, Technical Leads and other stakeholders to translate business requirements into effective technical solutions
• Applying sound object-oriented design principles, engineering practices and design patterns to produce maintainable, high-quality software
• Developing and integrating RESTful APIs and services within complex enterprise environments
• Working with relational databases and data persistence technologies
• Participating in code reviews, automated testing, debugging and performance optimization
• Contributing to continuous improvement of engineering practices, development processes and delivery effectiveness
• Using modern development tools and exploring AI-assisted engineering techniques to improve productivity and quality across the software development lifecycle
• Communicating effectively with client and internal teams and contributing to a collaborative, high-performing delivery environment

Must Have' Skills/Experience:

• 5+ years of professional 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

Nice to Have' Skills/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 activities such as requirements analysis, solution design, coding, testing, debugging and code review
• Experience working in consulting or client-facing delivery environments

About Electric Mind

Electric Mind is a fast-growing, AI-native advisory and digital engineering firm built for those who want to shape the future, not just watch it happen. We blend premium strategyexpertisewithcutting-edgeAI-centric engineering to solve complex, meaningful problems for industry-leading clients.

We pride ourselves on a high-touch delivery model and a culture that values diverse talent, innovation, and true client partnership - creating an environment where your ideas matter and your impact is visible.

Ifyou’relooking for a place where you can grow fast, collaborate with exceptional teammates, and help build a company scaling its capabilities and global footprint at speed - Electric Mind is the place to ignite your career. The future is bright!

For more info on Electric Mind, check out our Careers Page and Instagram.

Electric Mind is committed to diversity in the workplace. We are an inclusive employer and welcome and encourage applications from all qualified candidates. Applicants’ needs will be accommodated during our recruitment and selection process so please advise us if you require accommodation.