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Added 2 days ago
Sr. Integration Architect - Automation
Infotree Global Solutions
Toronto, ON
Contract
Expert-level Senior Integration Developer with Intelligent Automation experience to design, build, and govern mission-critical enterprise automation and integration solutions on Workato and…
Added 2 days ago
Senior Software Engineer
Elective
Vancouver, BC
Full-time
As a Senior Software Engineer at Elective, nothing you build is invisible and you'll be in the room for planning, speccing, and debating architectural direction rather than just receiving…
Added 3 days ago
Senior Java Developer
Citi
Mississauga, ON · ON
Full-time
Citi Futures Front Office Technology supports a rapidly growing business with a high degree of change. The role is a senior lead developer to contribute to the Risk and Trading solution,…
Added 3 days ago
Senior Applications Developer - Assistant Vice President
Citi
Mississauga, ON
Full-time
Acts as SME to senior stakeholders and /or other team members.
Added 3 days ago
Backend Java Developer, Officer
Citi
Mississauga, ON
Full-time
The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application…
Added 2 days ago
Java Application Developer
Jobility Talent Solutions
Toronto, ON
Contract
This is a senior technical Java Developer position combining hands-on development with team guidance and production support responsibilities. You'll work with a small global developer team…
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
Senior Java Developer
Prolifics
Montreal, QC
Contract
We are looking for a Java developer (8-10 years exp) who can take ownership for the whole end to end delivery, performing analysis, design, coding, testing, and maintenance of large-scale…
Added 2 days ago
Senior Java Software Engineer
VLink Inc
Montreal, QC
$55 to $70 CAD / hour
Contract
We are looking for a Java developer (8-10 yrs exp) who can take ownership for the whole end to end delivery, performing analysis, design, coding, testing, and maintenance of large-scale and…
Added 3 days ago
Senior Software Developer
Euna Solutions
ON · Oakville, Ontario
Full-time
…users depend on to responsibly manage public dollars. As a Senior Developer, you will own features end to end across a modernization effort moving a large-scale legacy monolith toward a…
Added 2 days ago
Team Lead, Senior Fullstack Engineer
Arcadia
Toronto, ON
$160,000 to $220,000 CAD / year
Full-time
A fast-growing AI software company is hiring a Team Lead, Senior Full Stack Software Engineer in Toronto to help build a modern enterprise platform used to manage, monitor, and scale AI…
Added 2 days ago
Senior Java Software Engineer
Maarut Inc
Quebec, QC
Contract
Senior Java Developer – AWS | Spring | Microservices
Added 3 days ago
Data Architect
Univeris
Toronto, ON
Full-time
Added 2 days ago
Senior ServiceNow Developer
Brainhunter Systems Ltd
Toronto, ON
Contract
Brainhunter is currently seeking the services of a “Senior ServiceNow Developer ” for a contract opportunity with one of our Valued Clients.
Added 2 days ago
Full Stack Engineer
VStream Labs Inc.
Toronto, ON
$60 to $70 CAD / hour
Contract
Software Developer - Full Stack, Senior (Java / Azure / Esri)
Added 2 days ago
Data Architect
Univeris
Toronto, ON
$130,000 to $150,000 CAD / year
Full-time
Added 2 days ago
Senior Software Developer
isgSearch
Toronto, ON · Greater Toronto Area, Canada
Full-time
Senior Software Developer (Java / Spring Boot)
Added 2 days ago
Financial Risk Analyst
Gala Solutions
Montreal, QC
Contract
We are currently seeking a senior developer within the Fixed Income Derivatives Technology group. Our team works closely with Interest Rates Sales & Trading and the Quantitative Strategists…
Added 2 days ago
Java Developer
TMC Canada
Montreal, QC
Full-time
We're looking for a Senior Java Developer to join a global engineering team building large-scale, distributed risk management applications. You'll work on mission-critical systems that…
Added 3 days ago
Developer Java, Spring, AWS
Maarut
Longueuil, QC
Contract
senior developer with 12 years of experience who can jump right in on existing
Added 2 days ago
Staff Software Developer, Canada Tax Content
Intuit
Toronto, ON
Full-time
The Canada Tax Content team is looking for a highly motivated, innovative Staff Software Developer to help build and maintain Canada's leading tax products. You'll work with a diverse team…
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
Senior Applied Scientist
Microsoft
Vancouver, BC
Full-time
…highly competitive market sound exciting to you? If so, this Senior Applied Scientist role with the Microsoft Turing team may be a great fit for…
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…

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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