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Added 5 days ago
K
Data Consultant
KPMG
ON · Toronto, Ontario
- Full-time
Bachelors or Diploma or Master in Computer Science, Database Management, Data Programming, Information Systems, Data Engineering, Data Analytics, Applied Computing or other IT-related…
Added 5 days ago
C
Principal Technical Consultant, Google Cloud (GCP)
CWX
Vancouver, BC
- Full-time
Lead complex workload migrations, database modernization initiatives, and application refactoring to maximize agility, performance, and cloud-native capabilities.
Added 5 days ago
KR
Quality Assurance Engineer + IoT
KTek Resourcing
Canada
- Contract
Ability to work independently and support several developer teams focused mostly on Software-Oriented Architecture) SOA services or web development technologies (API / Web Service / REST)
Added 5 days ago
HT
Software Validation Technologist
Husky Technologies
Bolton, ON
- Full-time
Evaluate and verify some issues discovered, log probable software bugs in Husky tracking database.
Added 5 days ago
I
Sterling integrator administration Consultant
Infosys
Mississauga, ON
- Full-time
Added 5 days ago
C
Consultant, Risk Analytics (9 Month Fixed Term)
CIBC
Toronto, ON
- Full-time
…analysis and data mining solutions, emphasizing the development of database driven reports and analyses. Maintain a high level of competency in statistical and analytical principles, tools…
Added 5 days ago
KR
Spring Boot Technical Lead
KTek Resourcing
Montreal, QC
- Contract
Experience with Python, Spring Boot, and REST API development
Added 5 days ago
R
Spécialiste en automatisation manufacturière / Manufacturing Automation Specialist
RTX
Longueuil, QC
- Full-time
Maîtrise des langages de programmation (C#, Java, Python);
Added 5 days ago
C
Staff Backend Engineer | Remote, US & Canada
Cube
Canada
- Full-time
Python/Django Expert: Deep knowledge of Django internals including middleware, database routing, management commands, signals, and performance optimization in high-scale, multi-tenant…
Added 5 days ago
AS
Backend Developer – GenAI
Amaze Systems
Montreal, QC
- Contract
We are seeking an accomplished Full Stack Developer with expertise in GenAI technologies to join the team and drive key initiatives forward.
Added 5 days ago
OR
Senior Systems Engineer
OSL Retail Services Inc
Mississauga, ON
- Other
Extensive experience with scripting and automation using PowerShell, Bash, and/or Python to improve reliability, reduce manual effort, and enforce standards.
Added 5 days ago
SI
Full-Stack Developer (Rust & WebAssembly)
SuperQubit Inc.
Markham, ON
- $80,000 to $120,000 CAD / year
- Full-time
Job Title: Full-Stack Developer (Rust & WebAssembly)
Added 5 days ago
E
Quality Engineer - Banking Mobile (iOS/Android) & Automation Testing
Experis
Toronto, ON
- Contract
Build & Scale Automation: Design, write, and maintain robust automated test suites across the application stack (UI, API, and database layers).
Added 5 days ago
P
Lead Data Consultant, Manager
PwC
Toronto, ON
- Full-time
Proficiency in SQL and Python and experience developing maintainable, testable and reusable data engineering solutions.
Added 5 days ago
SM
IT & Systems Manager (AI-First)
Stichting Mission on Wheels
Calgary, AB
- $90,000 to $115,000 CAD / year
You'll lead our small technical team: our AI and internal tools developer, a contract AI engineer, and the app developers we're hiring now. You'll set the rules for how we build and review…
Added 5 days ago
ZS
Python Full stack developer at Toronto, ON (Hybrid)
Zodiac Solutions, Inc
Toronto, ON
- Full-time
The ideal candidate will have a strong background in full stack development with hands-on experience in Python, React, and cloud-native technologies. As a Full Stack Developer, you will be…
Added 5 days ago
A
Développeur(se) Java sénior
Astek
Montreal, QC
- Full-time
Expérience avec des pipelines de traitement de données distribués utilisant Apache Spark, Python et d'autres outils
Added 5 days ago
OR
Senior System Engineer
OSL Retail Services
Mississauga, ON
- $100,000 to $115,000 CAD / year
- Full-time
Extensive experience with scripting and automation using PowerShell, Bash, and/or Python to improve reliability, reduce manual effort, and enforce standards.
Added 5 days ago
VK
Software Engineer
Venue Kings
North Vancouver, BC
- $70,000 to $120,000 CAD / year
- Full-time
Production experience with either Go or Python, plus the ability and interest to work in both languages.
Added 5 days ago
Software Development Engineer, Early Career - 2027 (CAN)
Amazon
Vancouver, BC
- Experience with at least one general-purpose programming language such as Java, Python, C++, C#, Go, Rust, or TypeScript
Added 5 days ago
R
Digital Asset QA Engineer
RBC
Toronto, ON
- Full-time
Programming/scripting languages: JavaScript/TypeScript, Python, or Solidity
Added 5 days ago
FS
Atlassian System Administration
Futran Solutions
Mississauga, ON
- $120,000 to $128,000 CAD / year
- Full-time
Experience with MSSQL to include database management and scripting.
Added 5 days ago
HG
Monitoring & Observability Engineer
Humankind Global Recruitment
Halifax, NS
- Full-time
…infrastructure and application monitoring, and scripting with Python, PowerShell or…
Added 5 days ago
SI
Observability Engineer - Need Locals to Montreal, Canada (In-person Interview is required)
Saransh Inc
Montreal, QC
- Contract
Experience in integrating observability tools with CI/CD pipelines and automating through scripting (Python, Bash, JSON, YAML, Terraform, or similar).
Added 5 days ago
ZS
Peoplesoft techno functional
Zodiac Solutions, Inc
Toronto, ON
- Full-time
Troubleshoot application, database, and performance issues.Automate administrative tasks using Shell, Python, PowerShell, or other scripting technologies.

OSL Retail Services

Senior System Engineer

Mississauga, ON, Canada

$100,000 to $115,000 CAD / year · Full-time

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Job details

Pay: $100,000 to $115,000 CAD / year
Job type: Full-time
Apply by: Nov 18, 2026
Experience: 5+ years experience supporting engineering enterprise environments across networking, security, Windows and Linux systems, and cloud platforms.
Posting language: English
Posted: Oct 19, 2026

Original job description

At OSL Retail Services, we believe people are the heart of everything we do, and it is an exciting time to be part of something special! Our momentum is growing, and is fueled by innovation, collaboration, and a shared entrepreneurial spirit that drives real results. Founded in 2012 in Mississauga, Ontario, OSL delivers customized sales solutions in retail, direct sales, and customer acquisition, all built on a foundation of integrity, respect, and passion. Our culture thrives on connection, purpose, and growth. If you’re looking for a place where your talents are valued, your ideas matter, and your career can grow, we’d love to meet you.

The Opportunity:

As the Senior Systems Engineer, you will be instrumental in managing our corporate infrastructure, cybersecurity and cloud services. Your expertise will ensure the highest reliability and performance, supporting our commitment to delivering exceptional service to our clients and customers. This role involves working on complex projects, including evolving existing systems and implementing new technologies.

Location: based out of our corporate office in Mississauga, Ontario.

Key Responsibilities:

Oversee corporate network operations: Administer network infrastructure, firewalls, VPNs, and maintain robust network troubleshooting and security measures.
Develop and maintain documentation: Prepare and update system configurations, mappings, process documentation, and problem management records.
Supervise desktop and cloud infrastructure: Manage both on-premises and Azure cloud environments.
Continually monitor OSL’s IT landscape: Maintain vigilant oversight of capacity and performance metrics.
Support IT strategy and service improvement: Actively participate in tactical planning and contribute to the enhancement of all IT service deliveries.
Administer application servers: Oversee a diverse environment comprising Windows, Linux, and Azure-based resources.
Enforce security controls: Ensure the implementation of best-practice security measures across all systems.

Required Knowledge, Skills, and Abilities:

Deep expertise in designing, operating, and securing enterprise network environments, including firewalls, switches, access points, VPN technologies, and MPLS or equivalent WAN solutions.
Strong systems engineering background with advanced experience in automation, configuration management, and secure-by-design principles across network and infrastructure platforms.
Demonstrated ability to lead the technical design and implementation of complex networking and security initiatives, balancing scalability, resiliency, and risk management.
Advanced proficiency administering and troubleshooting both Windows and Linux environments, with the ability to diagnose and resolve issues across networking, systems, and applications.
Extensive experience with scripting and automation using PowerShell, Bash, and/or Python to improve reliability, reduce manual effort, and enforce standards.
Hands-on experience building and operating monitoring, observability, and alerting solutions using tools such as Zabbix, Azure Monitor, Prometheus, Grafana, Datadog, and centralized logging platforms (e.g., ELK, Loki, Graylog).
Strong working knowledge of Microsoft Entra ID / Active Directory, identity federation, and access control models in hybrid and cloud-integrated environments.
Proven ability to take full ownership of technical outcomes, including architecture decisions, implementation, documentation, and ongoing operational excellence.
Excellent communication and stakeholder management skills, with the ability to translate complex technical concepts, risks, and trade-offs into clear business-facing language.
Experience providing Tier‑3 operational support and participating in after-hours on-call rotations for critical infrastructure services.
Solid understanding of ITIL practices (Incident, Change, and Problem Management), with experience improving operational processes and system stability over time.

What you’ve done:

5+ years experience supporting engineering enterprise environments across networking, security, Windows and Linux systems, and cloud platforms.
Expert knowledge of core networking protocols and services, including TCP/IP, DNS, DHCP, routing, and VPN technologies (site-to-site and client-based).
Strong experience with Fortinet firewalls and networking equipment; Fortinet certifications (e.g., NSE) are a strong asset.
Proven experience designing and supporting cloud and hybrid networking solutions, with Microsoft Azure strongly preferred (AWS or GCP experience considered an asset).
Hands-on experience delivering Infrastructure as Code using tools such as Terraform, Ansible, and/or Chef to provision and manage network and system resources.
Working knowledge of database platforms such as Microsoft SQL Server and PostgreSQL, particularly as they relate to infrastructure, performance, and availability considerations.
Experience implementing enterprise observability, monitoring, and alerting strategies using. platforms such as Azure Monitor, Prometheus, Datadog, and related tooling.

Working Conditions:

Flexibility to work various schedules, including evenings and weekends, as required.

What’s in it for you:

Competitive base salary: $100K-$115K plus bonus.
Generous time off: Start with 3 weeks of vacation, plus extra flex days to recharge.
Comprehensive benefits package: Includes medical, dental, vision, health spending account, and Teladoc virtual care.
Retirement support: Company-sponsored savings plan to help build your financial future
Career growth: Ongoing training, development, and programs to help you advance.
Award-winning culture: Proud to be one of Canada’s Best Managed Companies for 8 years running - now a Platinum Club member.

The Interview Process:

Stage 1: If your profile is a match, we will invite you for a first conversation with the recruiter.
Stage 2: The next step is a in-person interview with the hiring manager.
Stage 3: The final step is an in-person interview with the hiring manager and extended team members.

If this sounds like you and you’re excited to be a member of our team - please apply now.

Disclaimer: As part of our recruitment process, we utilize artificial intelligence (AI)-based tools to assist with certain stages, including initial resume screening and skills-matching assessments. These tools are designed to help our hiring team identify candidates whose experience and qualifications align closely with the requirements of the role. Please note that all final hiring decisions are made by our recruitment team. The preceding job description has been designed to indicate the general nature and level of work performed by employees within this job. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of employees assigned to this job. In compliance with Ontario’s Bill 190, we confirm that this posting represents a current existing vacancy within our organization.

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More about this job

Responsibilities

Manage and secure corporate network, on-premises, and Azure infrastructure, including firewalls, VPNs, application servers, and system performance. Lead complex infrastructure and security initiatives, maintain technical documentation, provide Tier 3 support, and contribute to IT service improvements and operational planning.

Requirements

Requires at least five years of experience supporting enterprise networking, security, Windows and Linux systems, and cloud platforms, with strong knowledge of core networking protocols and hybrid cloud environments. Candidates should have experience with Fortinet, automation and Infrastructure as Code, monitoring and observability, identity and access management, ITIL practices, and Tier 3 support; Fortinet certifications are an asset.

Skills

Enterprise Networking
Network Security
Fortinet Firewalls
Windows Administration
Linux Administration
Microsoft Azure
PowerShell
Bash
Python
Infrastructure As Code
Terraform
Ansible
Monitoring And Observability
Active Directory And Microsoft Entra ID
Incident, Change, And Problem Management
Technical Documentation

Benefits

Three Weeks Of Vacation
Flex Days
Medical Benefits
Dental Benefits
Vision Benefits
Health Spending Account
Teladoc Virtual Care
Company-Sponsored Savings Plan
Training And Development
Career Advancement Programs
Competitive Base Salary
Bonus

Visa sponsorship

Not detected in the job text

Keywords

Enterprise Networking
TCP/IP
DNS
DHCP
Routing
VPN
MPLS
Fortinet
Firewalls
Microsoft Azure
AWS
Google Cloud Platform
Windows
Linux
PowerShell
Bash
Python
Terraform
Ansible
Chef
Azure Monitor
Prometheus
Grafana
Datadog
ELK
Loki
Graylog
Microsoft Entra ID
Active Directory
ITIL

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