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Added 9 mins ago
Senior Software Engineer
Scotiabank
Toronto, ON
The Product Onboarding team is seeking a hands-on Senior Engineer to design and deliver modern, cloud-native onboarding applications using JavaScript, TypeScript, MongoDB, Express.js,…
Added 9 mins ago
Lead IT Infrastructure & Cloud Engineer - Mining/Mineral Processing
Blue Moon Metals
Toronto, ON
We are seeking a Lead IT Infrastructure & Cloud Engineer to design, implement, and support our core infrastructure, cloud services, and modern workplace environment. This is a hands-on…
Added 9 mins ago
NDT Engineer
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Mississauga, ON
Hatch is seeking a Non-Destructive Testing Engineer (NDT Engineer) for the Mississauga office. The incumbent will be part of a team responsible for Non-Destructive Testing duties for Hatch…
Added 9 mins ago
Operations Engineering Specialist
Celestica International LP
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Senior commodity engineer with extensive experience in managing electronic component quality. Applicant must have experience working directly with suppliers to drive quality improvement…
Added 9 mins ago
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Engineer, Acoustics and Vibrations
BBA Consultants
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- Full-time
Added 9 mins ago
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Engineer, Acoustics and Vibrations
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- Full-time
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Engineer, Acoustics and Vibrations
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Engineer, Acoustics and Vibrations
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- Full-time
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Engineer, Acoustics and Vibrations
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Mont-Tremblant, QC
- Full-time
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Engineer, Acoustics and Vibrations
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Rouyn-Noranda, QC
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Added 9 mins ago
TE
Directeur des opérations manufacturières/Manufacturing Operations Director
TRAMAC EQUIPMENT
Vaudreuil-Dorion, QC
- Full-time
Lean, Six Sigma, APICS/ASCM certifications, an MBA, or a Professional Engineer (P.Eng.) designation are considered strong assets
Added 9 mins ago
C
Software Engineer
Cisco
Ottawa, ON
- $116,700 to $165,800 CAD / year
- Full-time
Experience programming in languages such as Go and Python, including leveraging AI-assisted development tools to write, test, and optimize code.
Added 9 mins ago
TG
Senior Structural Engineer
Tomlinson Group of Companies
Ottawa, ON
- Full-time
We are seeking a Senior Structural Engineer with a minimum of 8 years of professional experience in Ontario to lead structural projects and manage a team of engineers and EITs. This role…
Added 9 mins ago
BC
Engineer, Acoustics and Vibrations
BBA Consultants
Quebec, QC
- Full-time
Added 9 mins ago
S
Optoelectronic Engineer
Sanmina
Ottawa, ON
- Full-time
We are looking for an experienced Optoelectronic Engineer with a strong background in optical / optoelectronic product development and manufacturing, to join the multidisciplinary…
Added 9 mins ago
A
Lead Instrumentation Engineer
Actalent
Calgary, AB
- $80 to $100 CAD / hour
- Full-time
The Lead Instrumentation Engineer provides high-quality instrumentation and control (I&C) engineering services across large, complex industrial projects in sectors such as energy, mining,…
Added 10 mins ago
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Systems Integration Engineer
AtkinsRéalis
Toronto, ON
- Full-time
The Systems Integration Engineer is responsible for driving interdisciplinary systems integration, interface coordination, and deliverable readiness across complex project environments,…
Added 10 mins ago
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Senior Projects Engineer
Gibraltar Mine
McLeese Lake, BC
- Full-time
We are looking for an experienced professional engineer to join Gibraltar Mine as Senior Projects Engineer, Technical Services. This role provides technical leadership and project…
Added 10 mins ago
S
Intermediate Electrical Engineer
Stantec
Dartmouth, NS
- Full-time
As an Intermediate Electrical Engineer in our Dartmouth/Moncton office, you will work independently on small and average-sized projects, and as a team member of a larger project under the…
Added 24 mins ago
Senior Lead, Utilities & Energy Management
City of Mississauga
Mississauga, ON
…professionals in the management of BAS and renewable energy portfolio, development and implementation of energy management programs, and utilities budget in relation to all City-owned…
Added 24 mins ago
RK
Manager, Software Engineering
Rakuten Kobo Inc.
Toronto, ON · Kobo-ON-John Street
- $144,812 to $194,812 CAD / year
- Full-time
Providing mentorship and coaching to team members, actively seeking opportunities for their professional development & providing feedback in 1:1s and other settings
Added 24 mins ago
A
Senior Software Engineer, Analytics and Reporting Solutions ⭐
Achievers
Toronto, ON
- Full-time
Contribute to agile development cycles, including sprint planning, estimation, and retrospectives
Added 24 mins ago
SP
Structural Engineer P. Eng (Building Systems)
Stubbe's Precast
Fergus, ON
- $100,000 to $125,000 CAD / year
- Full-time
We are seeking a Senior Structural Engineer (Building Systems) for immediate employment for the Harley, ON (located between Brantford and Woodstock) with opportunities for hybrid work. This…
Added 25 mins ago
FC
Project Engineer
FCC Construcción
Toronto, ON
- Full-time
…through mentorship, meaningful work experiences, and career development…
Added 25 mins ago
ES
Software Engineer (Java, Python & Linux)
Enterprise Solutions Inc.
Toronto, ON
- Contract
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…

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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