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Added 2 days ago
TG
Senior Structural Engineer
Tomlinson Group of Companies
Ottawa, ON
- Full-time
The Tomlinson Group of Companies encourages applications from all qualified candidates. Please contact Human Resources if you need accommodation at any stage of the application process or…
Added 2 days ago
MH
Sales Associate | Regent Mall | Part Time | $17 per hour
Michael Hill
Fredericton, NB
- Part-time
This is an active vacancy, and we use AI- assisted tools to help assess applications based on job-related criteria.
Added 2 days ago
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Optoelectronic Engineer
Sanmina
Ottawa, ON
- Full-time
Sanmina welcomes and encourages applications from persons with disabilities. In accordance with the guidelines established under the Accessibility for Ontarians with Disabilities Act…
Added 2 days ago
QM
Administrative Assistant
Quantum Management Services Ltd.
Mississauga, ON
- $55,000 to $58,000 CAD / year
- Full-time
All applications are reviewed by our recruitment team, and hiring decisions are made by people. We may also use AI-enabled tools to support parts of the application review process.
Added 2 days ago
A
Lead Instrumentation Engineer
Actalent
Calgary, AB
- $80 to $100 CAD / hour
- Full-time
Added 2 days ago
MG
Client Relationship Manager
Markets Group
Toronto, ON
- Full-time
Maintain accurate and up-to-date client and prospect information within the CRM database and related applications.
Added 2 days ago
MI
Sr. Financial Analyst
Mondelēz International
Toronto, ON · Plant - East York, Canada
- Full-time
Added 2 days ago
RJ
AVP, Tax Consulting
Raymond James
Vancouver, BC · Toronto, ON
- Full-time
Added 2 days ago
REPOSTED: EU417P A5: Curriculum & Pedagogies in Social Stud. & Indigenous Education, PJ (W2027)
Wilfrid Laurier University
Brantford, ON
…Part-time Librarians, all applicants shall apply electronically. Applications must be received by 23:59 local time of the date on the…
Added 2 days ago
A
Digital Imaging PACS Administrator
Accenture
Mississauga, ON · Montreal, QC
- Full-time
An experienced Digital Imaging PACS Administrator Applications Support Coordinator
Added 2 days ago
OT
Assistant Superintendent (Night Shift)
Ontario Transit Group
Toronto, ON
- Full-time
OTG uses artificial intelligence (AI) tools as part of the applicant screening process. However, applications are reviewed by a member of our Recruitment team to ensure a fair and thorough…
Added 2 days ago
OT
Civil Project Coordinator (Night Shift)
Ontario Transit Group
Toronto, ON
- Full-time
OTG uses artificial intelligence (AI) tools as part of the applicant screening process. However, applications are reviewed by a member of our Recruitment team to ensure a fair and thorough…
Added 2 days ago
B
Business Analyst - GenAI / Machine Learning
BeachHead
Toronto, ON
- $68.84 to $82.61 CAD / hour
- Contract
Demonstrated passion for AI and active engagement with the evolving AI landscape, emerging capabilities, industry trends, limitations, and potential applications within banking.
Added 2 days ago
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Senior Software Engineer, Analytics and Reporting Solutions ⭐
Achievers
Toronto, ON
- Full-time
Experience integrating applications with AI/ML systems is a plus
Added 2 days ago
D
Software Engineering Architect
Dexterra
Mississauga, ON
- $90,000 to $100,000 CAD / year
- Full-time
Experience modernizing legacy applications using microservices and API-first architectures.
Added 2 days ago
A
Concepteur de produits principal/ Senior Product Designer
Acumatica
Montreal, QC
- Full-time
The Senior Product Designer owns the end-to-end user experience of Acumatica applications, shapes workflows, and aligns them with the product vision. As an active member of the discovery…
Added 2 days ago
ES
Software Engineer (Java, Python & Linux)
Enterprise Solutions Inc.
Toronto, ON
- Contract
Design, develop, implement, and maintain secure, scalable, and high-performance applications.
Added 2 days ago
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Artificial Intelligence Engineer
Hays
Toronto, ON
- Contract
Hands-on experience with LLMs and GenAI applications
Added 2 days ago
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Python Software Engineer (Client Facing Consultant)
Luxoft
Toronto, ON
- $120,000 to $150,000 CAD / year
- Full-time
Develop cloud-native applications (AWS preferred)
Added 2 days ago
DG
Software Engineering Architect
Dexterra Group
Mississauga, ON
- Full-time
Experience modernizing legacy applications using microservices and API-first architectures.
Added 2 days ago
E
Mechanical Design Engineer
Evertz
Burlington, ON
- Full-time
Added 2 days ago
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Senior Designer
Entro
Vancouver, BC
- Full-time
Entro may use AI-assisted tools during parts of the recruitment process to help screen and assess applications**
Added 2 days ago
HO
Data Cloud Engineer
Hydro One
Toronto, ON
- $80 to $90 CAD / hour
- Contract
Enable secure integration between Snowflake and enterprise applications through APIs, event-driven patterns, data sharing, private networking, and Azure-native integration services.
Added 2 days ago
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Creative Director
Entro
Vancouver, BC
- Full-time
Salary Range - 90,000 - 110,000**Entro may use AI-assisted tools during parts of the recruitment process to help screen and assess applications**
Added 2 days ago
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Legal Counsel
Hydrostor
Toronto, ON
- Full-time

Enterprise Solutions Inc.

Software Engineer (Java, Python & Linux)

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Dec 5, 2026
Posting language: English
Posted: Nov 5, 2026

Original job description

Software Engineer (Java, Python & Linux)

Location: Mississauga, ON

Experience: 5+ Years

Position: Sub-contractor

Job Description

We are looking for an experienced Software Engineer with strong hands-on expertise in Java, Python, Linux, and CI/CD to join a dynamic DevSecOps team supporting a large-scale, highly available distributed payment system.

The ideal candidate will have experience in application development, microservices, secure coding, automated testing, and production troubleshooting. Familiarity with QA responsibilities and the ability to perform development and testing activities are highly desirable.

Responsibilities

Analyze business requirements, identify use cases, and document technical specifications.
Design, develop, implement, and maintain secure, scalable, and high-performance applications.
Develop and support distributed applications using Java, Python, Spring Boot, and microservices.
Build and maintain RESTful APIs and integrate distributed application components.
Participate in the full software development lifecycle, including requirement analysis, design, development, testing, deployment, and maintenance.
Develop and execute unit, integration, and automated tests as part of CI/CD pipelines.
Follow test-first development practices and maintain high software quality standards.
Perform code reviews, code scanning, vulnerability assessment, and remediation in collaboration with application security teams.
Identify and address security vulnerabilities related to application code, dependencies, and configuration.
Troubleshoot production issues using Linux tools and performance diagnostics.
Work with SQL and NoSQL databases, ORM frameworks, and application data layers.
Maintain technical documentation, user manuals, configuration dictionaries, and technical specifications.
Collaborate with developers, QA teams, security teams, and business stakeholders throughout the project lifecycle.
Incorporate AI-assisted development tools while maintaining code quality, security, and engineering standards.

Mandatory Skills

Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience.
Minimum 5 years of hands-on software development experience, preferably in high-performance distributed applications.
Strong proficiency in Java and Python.
Experience with Spring Boot, Microservices, and AWS API Gateway.
Strong understanding of Linux internals, including processes, threads, memory management, file systems, networking, signals, and IPC.
Experience with Linux-based production troubleshooting and performance diagnostics.
Proficiency with Git, GitHub, and CI/CD pipelines.
Strong understanding of secure coding practices and common application vulnerabilities.
Experience developing and consuming RESTful APIs using HTTP and JSON.
Hands-on experience with SQL, NoSQL databases, and ORM frameworks.
Knowledge of authentication and authorization standards, including OAuth 2.0 and JWT.
Understanding of cryptography fundamentals and TLS 1.3.
Experience with automated testing, unit testing, integration testing, and test-first development.
Strong analytical, problem-solving, communication, and collaboration skills.

Preferred Skills

Experience with JavaScript, Node.js, and web development frameworks.
Familiarity with Spring, Apache Tomcat, React, or Angular.
Experience with AWS, GCP, or other cloud platforms.
Knowledge of containerization technologies.
Familiarity with GitHub Copilot and AI-assisted development workflows.
Experience with OpenSSL and network troubleshooting tools such as Wireshark.
Knowledge of post-quantum cryptography algorithms.
Familiarity with PCI DSS and PCI SSF security standards.
Experience with static and dynamic application security testing.
Knowledge of diagram-as-code tools such as PlantUML or Mermaid.

Good to Have

Java and AWS integration experience.
Familiarity with application QA responsibilities and test automation.
Ability to independently troubleshoot application issues and support production environments.
Strong documentation skills and attention to detail.

We are committed to fostering an inclusive workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by applicable law

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More about this job

Responsibilities

Design, develop, test, deploy, and maintain secure, scalable distributed applications and RESTful APIs using Java, Python, Spring Boot, and microservices. Support CI/CD and automated testing, address application security vulnerabilities, troubleshoot production issues on Linux, and collaborate with development, QA, security, and business teams.

Requirements

Requires a bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience, plus at least five years of hands-on software development experience. Candidates should be proficient in Java, Python, Linux, CI/CD, secure coding, REST APIs, databases, authentication standards, and automated testing.

Skills

Java
Python
Linux
Spring Boot
Microservices
AWS API Gateway
CI/CD
Git
GitHub
RESTful APIs
Secure Coding
Automated Testing
SQL
NoSQL
OAuth 2.0
JWT

Visa sponsorship

Not detected in the job text

Keywords

Java
Python
Linux
Spring Boot
Microservices
AWS API Gateway
CI/CD
Git
GitHub
RESTful APIs
HTTP
JSON
Secure Coding
Application Security
Vulnerability Assessment
Automated Testing
Unit Testing
Integration Testing
Test-First Development
SQL
NoSQL
ORM Frameworks
OAuth 2.0
JWT
Cryptography
TLS 1.3
Distributed Applications
Production Troubleshooting
DevSecOps
Payment Systems

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