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Added 2 days ago
Sr. Software Developer
Propel Holdings
Toronto, ON
Full-time
12+ years of work experience as a developer (Java) or any similar role
Added 3 days ago
Senior Java Engineer – Backend & AI-Assistant Vice President
Citi
Mississauga, ON
Full-time
Citi is looking for a Senior Java Engineer to design and deliver high-performance backend systems at the intersection of enterprise software development and applied AI tooling. Based within…
Added 3 days ago
Backend Java Developer, Officer
Citi
Mississauga, ON
Full-time
Spring Ecosystem: Extensive hands-on experience with Spring Boot, Spring Security, Spring Data JPA, and Spring Core.
Added 2 days ago
Java Application Developer
Jobility Talent Solutions
Toronto, ON
Contract
10+ years of professional experience building and deploying Java applications using Spring and Spring Boot frameworks in enterprise environments.
Added 2 days ago
Senior Java Software Engineer
Experis Canada
Montreal, QC
Contract
We are looking for a Custom Software Engineer / Development Lead with strong experience in Java, Spring Boot, Microservices, REST APIs, Kafka, and AWS. The successful candidate will lead…
Added 2 days ago
Team Lead, Senior Fullstack Engineer
Arcadia
Toronto, ON
$160,000 to $220,000 CAD / year
Full-time
Strong backend experience with Java / Spring Boot or comparable stacks
Added 3 days ago
Senior Java Software Engineer
Maarut Inc
Quebec, QC
Contract
Senior Java Developer – AWS | Spring | Microservices
Added 3 days ago
Software Engineer
PlanIT Search
Markham, ON
Contract
The ideal candidate is a hands-on engineer with strong experience in Java, Spring Boot, Oracle, REST APIs, and enterprise application development, along with exposure to modern web…
Added 3 days ago
Full Stack Engineer
VStream Labs Inc.
Toronto, ON
$60 to $70 CAD / hour
Contract
Develop Java/JEE services with Spring Boot 2.5+, Angular 2+, HTML5, RESTful APIs, and relational databases.
Added 3 days ago
Senior Software Developer
isgSearch
Toronto, ON · Greater Toronto Area, Canada
Full-time
Senior Software Developer (Java / Spring Boot)
Added 3 days ago
Java Software Developer
ZAPCOM GROUP INC
Toronto, ON
Full-time
Backend development using Java/Spring Boot or Python (Django/FastAPI/Flask)
Added 3 days ago
Java Software Engineer
Tekshapers
Mississauga, ON
Full-time
Added 3 days ago
Developer Java, Spring, AWS
Maarut
Longueuil, QC
Contract
Java, Spring, and AWS code to tackle technical debt and fix vulnerabilities,
Added 3 days ago
Senior Data Engineer
Royal Bank of Canada
Toronto, ON
Full-time
Experience in building Kotlin, Spring boot and Java applications.
Added 4 days ago
Senior Data Engineer
RBC
Toronto, ON
Full-time
Experience in building Kotlin, Spring boot and Java applications.
Added 3 days ago
Software Developer - Java/Mobile
CGI
Vancouver, BC
Full-time
2.5+ years developing enterprise Java applications using Java, Spring Boot, Spring Framework, J2EE technologies, and associated build/deployment tools such as Maven and Tomcat.
Added 4 days ago
Full Stack Engineering - Securities Financing
HSBC
Toronto, ON
Full-time
Build backend services using core Java (Java 17 or 21) with Spring Boot or Spring Framework
Added 3 days ago
Senior Java Backend Developer
TSR Consulting
Mississauga, ON
$70 to $75 CAD / hour
Contract
We are seeking a highly skilled and passionate Senior Java Backend Developer to join our engineering team as a Senior Individual Contributor. In this role, you will be responsible for…
Added 3 days ago
Senior Software Developer
Royal Bank of Canada
Toronto, ON
Full-time
Experience developing secure server side services leveraging the following APIs: Spring, Spring Boot, Spark, Scala, RESTful Webservices, Apache Data Utilities (JSON, Avro, CSV/PSV,…
Added 3 days ago
Senior Developer Engineer/Leader
Xcelerated Consulting Group, LLC.
Montreal, QC
Contract
Full-Stack Technical Execution: Architect and develop robust, scalable applications utilizing Java, JEE, Spring, Hibernate, and Oracle, integrating seamless RESTful Web Services and…
Added 3 days ago
Java Full Stack Software Developer
J&M Group
Toronto, ON
Full-time
Java/JEE technology with Spring Boot version 2.5 or higher
Added 4 days ago
Intermediate Software Developer
Best Buy Canada
Newmarket, ON
Full-time
Hands-on experience with back-end development demonstrating proficiency with core development languages such as Java (J2EE, Spring Boot)
Added 3 days ago
Senior Java Developer
K&K Global Talent Solutions INC.
Mississauga, ON
Full-time
We’re hiring a Senior Java Developer to design, build, and operate enterprise-grade microservices with strong expertise in Spring Boot, Kafka, and MongoDB on Open Shift/AWS.
Added 3 days ago
Spark Scala Java Developer
Pacer Group
Toronto, ON
$55 to $60 CAD / hour
Contract
Experience with CI/CD, Helios, Spring Boot Web Services, and SQL.
Added 4 days ago
Senior Software Developer
RBC
Toronto, ON
Full-time
Experience developing secure server side services leveraging the following APIs: Spring, Spring Boot, Spark, Scala, RESTful Webservices, Apache Data Utilities (JSON, Avro, CSV/PSV,…

Maarut

Developer Java, Spring, AWS

Longueuil, QC, Canada

Job type: Contract
Posting language: English
Posted: Sep 18, 2026

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Original job description

The mandate is looking for a senior developer with 12 years of experience who can jump right in on existing Java, Spring, and AWS code to tackle technical debt and fix vulnerabilities, rather than someone focused on developing new features.
The Mythos context and repeated mentions of security posture, vulnerability management, and technological upgrade point to a role centered on actively modernizing an existing application portfolio, not just a standard maintenance job.
The note about AI-assisted development practices, while not a dealbreaker, makes it clear the client is interested in candidates comfortable using these tools in a secure development setting.
The profile combines precise technical expertise (Java, Spring, AWS, microservices, distributed or event-driven architecture) with the ability to shape an automated testing strategy, setting it apart from a regular generalist application developer.

Requirements

Requirement

Bachelor’s degree in computer science or an equivalent discipline
Minimum 12 years of experience in software development, including enterprise application modernization
Excellent proficiency in Java
Significant experience with the Spring ecosystem (Spring Boot, Spring Framework, Spring Security)
Significant experience in API development and microservices architectures
Hands-on experience with AWS, including managed services and serverless technologies
Experience with distributed or event-driven solutions
Experience with CI/CD tools and practices
Implementation of an automated testing strategy (unit, integration, regression, and UI testing)
Experience in reducing technical debt and modernizing applications
Experience in vulnerability management and secure software development
Proficiency in French, both written and spoken

PREFERRED

Knowledge of AI-assisted development practices in a secure environment
Experience working in an Agile environment

ASSET / NICE-TO-HAVE

No distinct nice-to-have criteria were identified in the provided description

WHAT WE DON'T WANT

Less than 12 years of experience in software development.
No hands-on experience modernizing existing applications, only developing new features.
No practical experience with AWS, only theoretical knowledge.
No experience with the Spring ecosystem.
No experience in automated testing or continuous integration.
Profile focused on organizational architecture without direct coding involvement (should be redirected to the solutions architect position in the set of 5 requests).

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More about this job

Responsibilities

The developer will focus on modernizing an existing application portfolio by addressing technical debt and fixing security vulnerabilities. They will also be responsible for implementing an automated testing strategy and maintaining high standards of secure software development.

Requirements

Candidates must have a bachelor's degree and at least 12 years of experience in software development with a strong focus on Java, Spring, and AWS. Proficiency in French is required, along with hands-on experience in microservices, CI/CD, and vulnerability management.

Skills

Java
Spring Boot
Spring Framework
Spring Security
AWS
Microservices
API Development
Technical Debt Reduction
Vulnerability Management
Automated Testing
CI/CD
Distributed Systems
Event-driven Architecture
Secure Software Development
Application Modernization
AI-assisted Development

Visa sponsorship

Not detected in the job text

Keywords

Java
Spring Boot
Spring Framework
Spring Security
AWS
Microservices
API Development
Technical Debt
Vulnerability Management
Automated Testing
CI/CD
Distributed Systems
Event-driven Architecture
Secure Software Development
Application Modernization
AI-assisted Development
Agile
Software Development
Enterprise Application
Serverless
Managed Services

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