Sr. Backend Java Developer

Job Description

• Skill Set :

  Java 11

• Total Experience :

  7.00 to 10.00 Years

• No of Openings :

  1

• Job Post Date :

  08/10/2026

• Job Expiry Date :

  30/11/2026

• Domain :

  IT

• Location :

  TORONTO [Canada]

• Job Reference No :

  4111641

Job Summary

This job posting is for an existing, active vacancy and we are looking to hire Sr. Backend Java Developer in Canada (WFH), immediately who has strong experience in Java 17+, Springboot, Webflux, Kafka, Kubernetes, Docker, Claude.

Role Overview

You will design, build, and maintain reactive Java microservices that integrate enterprise third-party systems with internal consumers. You will own the full lifecycle of API development - from authentication flows and data transformation through deployment automation - within a Kubernetes-hosted, CI/CD-driven environment.

You bring strong opinions on system design, move fast without cutting corners, and actively use AI-assisted tooling to stay ahead. You are comfortable leading technical decisions within a scrum team and mentoring engineers around you.

Responsibilities

• Architect and own (code) reactive Spring Boot/WebFlux microservices at scale using Project Reactor (Mono/Flux)
• Lead design of OAuth2 token exchange flows, credential lifecycle management, and caching strategies
• Define and evolve REST API contracts with structured validation, error handling, and observability
• Drive integration patterns for enterprise third-party platforms and SSO providers
• Automate repetitive engineering tasks - code generation, test scaffolding, data transformation pipelines - using AI-assisted tooling (Claude, Copilot, or similar)
• Set the bar for test quality and coverage; enforce standards via JaCoCo and SonarQube
• Own Docker multi-stage builds and Kubernetes deployment pipelines (GitHub Actions, Harness)
• Champion observability: correlation ID propagation, MDC logging, Actuator metrics
• Mentor mid-level engineers and participate actively in code review and sprint ceremonies

Required Skills

• 5+ years of professional Java development; Java 17+ and Spring Boot required
• Deep experience with reactive programming: Project Reactor, non-blocking I/O, WebClient
• Strong understanding of OAuth2 / OpenID Connect; hands-on experience with token exchange or SSO integrations
• Proven REST API design skills with DTO-based transformation patterns at scale
• Maven, Docker, Kubernetes - not just aware of, but comfortable owning
• Git-based workflow in a fast-paced CI/CD environment
• Daily use of AI coding assistants (Claude Code, Copilot, Cursor, or similar) as a core part of your workflow

Nice to Have

• Experience designing or integrating agentic systems - multi-step LLM workflows, tool use, or prompt engineering for code-adjacent tasks
• JFrog Artifactory or similar artifact management
• Caffeine or other in-memory caching strategies
• SonarQube and code quality gate configuration
• Harness or other deployment automation platforms
• Azure devops experience

Environment

Enterprise tech stack. Services run on Java 17, Spring Boot 4, deployed to Kubernetes via Docker. All code goes through automated quality scans and coverage checks before merge. We actively invest in AI tooling and expect senior engineers to help shape how we adopt it responsibly and at speed.

The pay range for this role is CAD $90,000 - CAD $120,000* per annum including any bonuses or variable pay. Tech Mahindra also offers benefits like medical, vision, dental, life, disability insurance and paid time off (including holidays, parental leave, and sick leave, as required by law). Ask our recruiters for more details on our Benefits package. The exact offer terms will depend on the skill level, educational qualifications, experience and location of the candidate.

AI tools may assist in the recruitment process; however, all hiring decisions are made by the recruitment team based on a comprehensive evaluation of candidates.

“Tech Mahindra is an Equal Employment Opportunity client. We promote and support a diverse workforce at all levels of the company. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, national origin, or disability. All applicants will be evaluated solely on the basis of their ability, competence, and performance of the essential functions of their positions with or without reasonable accommodations. Reasonable accommodations also are available in the hiring process for applicants with disabilities. Candidates can request a reasonable accommodation by contacting the company ADA Coordinator at [email protected]