Senior Java Developer

Tecsys Inc.

. Design, develop, and deploy high-quality backend solutions using Java, Spring Boot, and microservices .

Posted 10/6/2026full-timeMontreal • CanadaSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and developing scalable backend solutions using Java, Spring Boot, and microservices, while integrating AI tools and promoting best practices in performance and security. Strong mentoring capabilities and collaboration with cross-functional teams to ensure production-ready software.

Highest-signal resume keywords

Java 11+ DevelopmentSpring Boot FrameworkMicroservices ArchitectureAI IntegrationRDBMS Experience

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

JavaSpring BootMicroservicesRESTful ServicesJUnitMockitoPostgreSQLGitMavenAI Tools

Soft Skills

MentoringCollaborationCommunicationProblem-SolvingContinuous Improvement

Tools & Technologies

IntelliJEclipseVisual Studio CodeNoSQL DatabasesDevOps Practices

Industry Keywords

Object-Oriented DesignAgile MethodologiesOperational StabilityCode ReviewsDistributed Architectures

Tech Stack

Tools & technologies

JavaJUnitMavenMicroservicesMockitoNoSQLOraclePostgresRDBMSSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact

Design, develop, and deploy high-quality backend solutions using Java, Spring Boot, and microservices
Conduct code reviews and contribute to design discussions
Support hands-on QA work and mentor other developers
Translate complex business needs into scalable technical solutions with product and business stakeholders
Integrate AI into delivered solutions and team workflows
Mentor developers in AI-first approaches that accelerate delivery
Evaluate and introduce emerging technologies where valuable
Apply and promote best practices in performance, scalability, observability, and security
Partner with DevOps and Operations to ensure software is production-ready and maintainable
Participate in agile ceremonies and retrospectives
Promote collaboration, innovation, accountability, and continuous improvement

Requirements

What you’ll need

7+ years of experience building Java-based backend systems in production environments
Hands-on experience in system design, application development, testing, and operational stability
Deep understanding of object-oriented design, microservices architecture, and RESTful services
Strong experience with Spring Boot, Java 11+, and testing frameworks including JUnit and Mockito
Solid foundation in RDBMS, preferably PostgreSQL; Oracle and SQL Server
Familiarity with NoSQL databases is a plus
Experience with Git, Maven, and modern IDEs including IntelliJ, Eclipse, and Visual Studio Code
Experience incorporating AI tools such as Kiro and Claude into day-to-day development
Ability to design and deliver scalable solutions in complex, distributed architectures
Ability to mentor developers, collaborate with QA, participate in code reviews, and develop proofs of concept
Strong business orientation and excellent communication skills
Degree in Computer Science, Software Engineering, or a related field

Benefits

Comp & perks

Remote-first flexibility and the trust to manage your own time
Benefits and vacation from day one
Pension plan with competitive employer contribution
Employee events and community initiatives
Room to learn, stretch and take on new challenges
Collaboration with global teams
Inclusive workplace where everyone feels valued, respected, and empowered to thrive