Senior Software Engineer (Java)

Exadel Inc; Canada; On-site; CAD 100,000 - 120,000; Full time

Job summary

A global technology firm based in Canada seeks a talented backend developer with 7–10+ years of experience in Java and AWS. You will lead the design of secure authentication and authorization systems, mentor younger engineers, and ensure robust backend services. The role offers flexible working arrangements and a culture of trust and mentorship.

Benefits

International projects

Medical healthcare

Ongoing learning & reimbursement

Team events & local benefits

Qualifications

• 7–10+ years backend Java development experience (Java 11+; 17/21 preferred).
• Deep knowledge of OAuth2, OIDC, JWT, and related identity protocols.
• Hands-on experience with AWS, ideally including Cognito, Lambda, API Gateway, and IAM.

Responsibilities

• Lead design and implementation of authentication and authorization flows.
• Develop secure backend services using Java, Spring Boot, and Spring Security.
• Mentor engineers, conduct code reviews, and drive best practices.

Skills

Backend Java development

OAuth2 knowledge

Spring Boot experience

REST API design

AWS services

Communication skills

Engineering leadership

Tools

Java 11+

AWS Cognito

Docker

Kubernetes

Job description

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.

What powers it all? Our people are ambitious, collaborative, and constantly evolving.

What You’ll Do

• Lead design and implementation of authentication, authorization, and access control flows
• Develop secure backend services using Java, Spring Boot, and Spring Security
• Implement OAuth2, OpenID Connect (OIDC), JWT, identity federation, and SSO patterns
• Integrate backend systems with AWS services including Lambda, API Gateway, Cognito, and IAM
• Define architectural standards for secure microservices and API security
• Ensure token management, auditing, and session lifecycle controls are in place
• Troubleshoot complex security issues across distributed environments
• Mentor engineers, conduct code reviews, and drive best practices
• Collaborate closely with cloud, product, and security teams on end-to-end solution design

What You Bring

• 7–10+ years backend Java development experience (Java 11+; 17/21 preferred)
• Deep knowledge of OAuth2, OIDC, JWT, and related identity protocols
• Strong experience with Spring Boot, Spring Security, and REST API design
• Hands-on experience with AWS, ideally including Cognito, Lambda, API Gateway, and IAM
• Familiarity with SAML, Kerberos, and identity federation concepts
• Knowledge of containerization (Docker, Kubernetes) is a plus
• Excellent communication and engineering leadership capabilities

Nice to Have

• Direct, hands-on experience with AWS Cognito (user pools, identity pools, hosted UI, federation)
• Ownership of architecture in previous roles
• Experience in regulated or financial environments

Legal & Hiring Information

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement
• Team events & local benefits
• Sports compensation

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.