Jobs in Canada

Group jobs by employerEmail me new jobs Save this search

Added 6 days ago
F
Senior Software Engineer (AI & Full Stack)
Fable
Remote, Canada
- $130,000 to $150,000 CAD / year
- Full-time
- Remote
Fable is looking for a highly motivated Senior Software Engineer with deep backend expertise, strong full-stack development skills, and hands-on experience building AI-powered applications…
Added 6 days ago
PG
Senior Application Security Engineer
Paymentus Group Inc
Richmond Hill, ON
- Full-time
The Senior Application Security Engineer is responsible for helping secure the Paymentus SaaS platform by partnering directly with software engineering, product, cloud infrastructure,…
Added 6 days ago
AI
Quality Engineer (QE) / SDET – AI Chatbot Validation
Apptoza Inc.
Toronto, ON
- Contract
We are looking for a seasoned AI first Senior Quality Engineer who is empowered to help the DevOps enablement team deliver highest level quality and is responsible for ensuring the team…
Added 6 days ago
Senior Java Developer
Localcoin
Canada
…new technologies to join our growing Engineering team as our Senior Java Back End…
Added 6 days ago
M
Senior Android SDK Developer (AI-Native Engineering)
MapsPeople
Richmond Hill, ON
- Full-time
…To support this journey, we are looking for an experienced Senior Android Developer who works AI-first: someone who uses AI coding agents as a natural part of their daily workflow, helps…
Added 6 days ago
AP
Senior Backend Developer
Accommodations Plus International
Markham, ON
- $125,000 to $135,000 CAD / year
We’re hiring a Senior Backend Developer to build and maintain the services, APIs, and integrations behind our enterprise-grade applications. This is a hands-on development role: you’ll…
Added 6 days ago
AP
Senior Full Stack Developer
Accommodations Plus International
Markham, ON
- $125,000 to $135,000 CAD / year
We’re hiring a Senior Full Stack Developer to build and maintain enterprise-grade applications across our Java and modern frontend stack. This is a hands-on development role: you’ll write…
Added 6 days ago
OT Systems/Applications Design
Celestica International LP
Newmarket, ON
Site OT Security lead ensuring zero-day vulnerabilities are addressed with no impact to production.
Added 6 days ago
AI
Quality Engineer (QE) / SDET – AI Chatbot Validation
Apptoza Inc.
Toronto, ON
- Contract
We are looking for a seasoned AI first Senior Quality Engineer who is empowered to help the DevOps enablement team deliver highest level quality and is responsible for ensuring the team…
Added 7 days ago
L
Senior Software Engineer
lululemon
BC · British Columbia, Canada
- Full-time
Senior Software Engineer - Tech Distribution & Logistics Systems
Added 7 days ago
M
Lead Full Stack Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
…decisions where no established precedent exists, and influence senior technology and business leaders. Success requires recognized technical depth, sound judgement in ambiguous situations,…
Added 7 days ago
M
Lead Full Stack Engineer
Manulife
Waterloo, ON
- Full-time
…decisions where no established precedent exists, and influence senior technology and business leaders. Success requires recognized technical depth, sound judgement in ambiguous situations,…
Added 7 days ago
AI
Quality Engineer (QE) / SDET – AI Chatbot Validation
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
We are looking for a seasoned AI first Senior Quality Engineer who is empowered to help the DevOps enablement team deliver highest level quality and is responsible for ensuring the team…
Added 7 days ago
IG
Quality Engineer – AI Chatbot Validation
IMCS Group
ON · Ontario, Canada
- Contract
We are looking for a seasoned AI first Senior Quality Engineer who is empowered to help the DevOps enablement team deliver highest level quality and is responsible for ensuring the team…
Added 7 days ago
TI
Quality Engineer (QE) / SDET – AI Chatbot Validation
Tekgence Inc
Brampton, ON
- Contract
We are looking for a seasoned AI first Senior Quality Engineer who is empowered to help the DevOps enablement team deliver highest level quality and is responsible for ensuring the team…
Added 7 days ago
T
Software Engineer II
TD
Toronto, ON
- Full-time
…direction, mentoring, solution design, engineering quality, application security, production readiness, and operational…
Added 7 days ago
M
Senior Full Stack Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
As a Senior Full Stack Engineer, you will help shape solutions, advance strategic initiatives, strengthen our technology footprint and champion strong engineering practices within your team.
Added 7 days ago
Principal Software Engineer
OCS Ontario Cannabis Store
Toronto, ON
…design and development; reviews critical code and detailed application designs; resolves high-impact problems; and mentors Software Engineers and Senior Software Engineers. Working across…
Added 7 days ago
B
Senior Full Stack Developer (.Net Technology Stack)
BDO
Toronto, ON
- Full-time
We are seeking a skilled Full Stack Developer with strong expertise in the Microsoft .NET technology stack for a hybrid role in downtown Toronto. The ideal candidate will have hands-on…
Added 7 days ago
Senior Software Engineer in Test, Android
Okta
Toronto, ON
…system features, communicating with our backend to grant proper application access across a wide variety of Android…
Added 7 days ago
I
Sterling integrator administration Consultant
Infosys
Mississauga, ON
- $102,474 to $147,835 CAD / year
- Full-time
…infrastructure landscape. Has handled sterling integrator platform and application and has performed day-to-day activities like monitoring system, clusters, adapters, queues, purge,…
Added 7 days ago
KG
RPA Platform Engineer
K&K Global Talent Solutions INC.
Toronto, ON
- Full-time
The Senior Platform Engineer develops, maintains, and manages Automation platform on premise, AWS cloud and vendor SaaS to enable automation across the bank and core operations enabling the…
Added 8 days ago
S
Technical Consultant
SymphonyAI
UNAVAILABLE, Ontario
- Full-time
…troubleshooting, and documentation tasks while partnering with senior consultants, engineers, and client technical…
Added 9 days ago
AS
Senior Software Development Engineer in Test (SDET) – Digital Banking
Aequilibrium Software Inc.
Remote, Canada
- $100,000 to $120,000 CAD / year
- Full-time
- Remote
Senior QA Automation Engineer / SDET (Canada-only)
Added 10 days ago
OT
Sr. IT Software Developer
Open Text Corporation
Waterloo, ON
- Other
As a Sr. IT Software Developer (Digital Fullstack), you will independently deliver full-stack and platform capabilities for OpenText's digital experience ecosystem. You will work across…

Celestica International LP

OT Systems/Applications Design

Newmarket, ON, Canada

Apply on careers.celestica.com About employer

Applications open in a new tab.

Job details

Experience: 5 to 7 years of related experience;
Posting language: English
Posted: Oct 21, 2026

Original job description

Req ID: 141715 Remote Position: No Region: Americas Country: Canada State/Province: Ontario City: Newmarket

Summary

Systems & Applications Design is an interdisciplinary field of engineering that works with cross functional teams of other engineers, customers, supply chain and project leadership to ensure robust and high quality product development.

The Lead Engineer, Systems/Applications is the Site Operational Technology (OT) lead that designs, integrates, and manages complex systems over their life cycles. They are engineering leads engaged in issues such as requirements engineering, reliability, logistics, coordination of different teams, testing and evaluation, maintainability and many other disciplines necessary for successful system design, development, implementation, and ultimate decommission. Enhance designs with feedback from reviews in areas such as manufacturing, test, supply chain, reliability, industrial design and simulations.

Detailed Description

Performs tasks such as, but not limited to, the following:

Act as the critical bridge between corporate IT compliance and factory-floor Operations Technology (OT), directly securing, modernizing, and maintaining high-value industrial assets while ensuring business continuity.
Responsible for developing and maintaining applications that integrate production equipment with the shop floor control system.
Site OT Security lead ensuring zero-day vulnerabilities are addressed with no impact to production.
Building new software solutions from scratch and maintaining legacy applications to keep manufacturing operations agile and responsive to shifting business needs.
Maintaing High-Integrity Storage & Disaster Recovery systems for production equipment with familarity with Zettabyte File System (ZFS).
Design, develop and implement technical solutions in two or more technical areas. Lead smaller projects and may coordinate with other engineers including reviews of their work.
Review and interpret customer documentation, conduct appropriate research, analysis and experiments with minimal direction from senior staff.
Create technical proposals (solution and timelines) based on requirements.
Research systems ideas and draw up plans for these systems
Design, modify and implement systems that meet customer and Celestica needs. E.g. Architecture of solution: Divide up tasks for various engineering teams to execute taking into consideration requirements engineering, reliability, logistics, coordination of different teams, testing and evaluation, maintainability and many other disciplines necessary for successful system design and field support.
Test, simulate and measure (including troubleshooting) the performance of systems
Keep up to date with relevant industry knowledge and regulations
Solve complex problems
Liaison with suppliers, customers, contractors, and other internal teams.
Analyze and interpret data and information
Recommend system modifications
Create reports and documentation

Knowledge/Skills/Competencies

The ideal candidate is an autonomous, high-initiative engineer who pairs deep infrastructure knowledge with robust programming skills in Java, PHP, HTML, and SQL.

IT hardware skills and knowledge of Linux Operating systems is a definite asset.

Physical Demands

Duties of this position are performed in a normal office environment.
Duties may require extended periods of sitting and sustained visual concentration on a computer monitor or on numbers and other detailed data.
Repetitive manual movements (e.g., data entry, using a computer mouse, using a calculator, etc.) are frequently required.
Occasional travel may be required.

Typical Experience

5 to 7 years of related experience; Experience in similar job roles

Typical Education

Bachelor degree or consideration of an equivalent combination of education and experience.

Educational Requirements may vary by Geography

Notes

This job description is not intended to be an exhaustive list of all duties and responsibilities of the position. Employees are held accountable for all duties of the job. Job duties and the % of time identified for any function are subject to change at any time.

Celestica is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws. At Celestica we are committed to fostering an inclusive, accessible environment, where all employees and customers feel valued, respected and supported. Accommodations are available upon request for candidates throughout the hiring process. If you require an accommodation, we will work with you to meet your needs.

This position involves technologies regulated by the Canadian government's Controlled Goods Program (CGP). Candidates must be Canadian citizens or permanent residents of Canada and meet all other requirements under CGP. Job offers will be conditional upon candidates undergoing a successful security screening per the Controlled Goods Regulations.

COMPANY OVERVIEW:

Celestica, Inc. (NYSE: CLS; TSX: CLS) is a technology leader dedicated to driving customer success and market advancements. With deep expertise in design, engineering, manufacturing, supply chain, and platform solutions, Celestica enables critical data center infrastructure for AI, cloud, and hybrid cloud and advances technologies in high-growth markets. With a talented team and a strategic global network, Celestica helps its customers achieve competitive advantages.

Today, Celestica delivers innovative supply chain solutions globally to customers in strategic two operating and reporting segments: Advanced Technology Solutions (ATS) and Connectivity and Cloud Solutions (CC):

ATS: This segment serves customers in complex, regulated and high-reliability markets such as Industrial & Smart Energy, Aerospace & Defense, Semiconductor Capital Equipment, and HealthTech. It is engineering led, with deep expertise in design, manufacturing and lifecycle solutions.

CCS: This segment focuses on high-performance technology solutions and services for the data center, serving hyperscalers, digital native customers and enterprises. Celestica's Platform Solutions offering provides innovative and customizable computing, storage and networking solutions enabling AI-driven growth.

Built on a legacy of trust and performance, Celestica has earned its reputation by delivering results in complex and fast-changing markets. Celestica exceeds customer expectations by identifying trends and staying ahead of the curve. Backed by comprehensive capabilities and a global network across North America, Europe and Asia, Celestica helps customers gain competitive advantage with the quality, flexibility and resiliency they need to respond quickly to shifts in demand. Guided by a bold vision to accelerate market advancements, Celestica delivers innovative solutions and technologies that turn complexity into opportunity. Anchored in teamwork and commitment, Celestica strives to be the most trusted partner to its customers and colleagues worldwide.

We use artificial intelligence tools to assist in screening and assessing applications for this role. All hiring decisions involve human review.

This posting is for an existing vacancy.

Celestica would like to thank all applicants, however, only qualified applicants will be contacted. Celestica does not accept unsolicited resumes from recruitment agencies or fee based recruitment services.

Apply on careers.celestica.com About employer

More about this job

Responsibilities

Lead site operational technology design, integration, security, and lifecycle management, bridging corporate IT compliance with factory-floor operations while protecting production continuity. Develop and maintain applications and infrastructure for manufacturing systems, lead technical projects, test and troubleshoot solutions, and coordinate with internal teams, suppliers, customers, and contractors.

Requirements

The role calls for 5–7 years of related experience and a bachelor’s degree or an equivalent combination of education and experience. Candidates should bring strong infrastructure and programming skills, including Java, PHP, HTML, and SQL; Linux and IT hardware knowledge are assets, and candidates must meet Canadian Controlled Goods Program eligibility requirements.

Skills

Operational Technology Security
Systems Design
Systems Integration
Application Development
Java
PHP
HTML
SQL
Linux
ZFS
Disaster Recovery
Requirements Engineering
Reliability Engineering
Testing and Troubleshooting
Project Coordination
Technical Documentation

Visa sponsorship

Not detected in the job text

Keywords

Operational Technology
OT Security
Corporate IT Compliance
Factory-Floor Operations
Manufacturing Systems
Systems Design
Systems Integration
Application Development
Java
PHP
HTML
SQL
Linux
IT Hardware
Zettabyte File System
ZFS
High-Integrity Storage
Disaster Recovery
Production Equipment
Shop Floor Control Systems
Requirements Engineering
Reliability
Testing and Evaluation
Troubleshooting
Technical Proposals
System Architecture
Lifecycle Management
Business Continuity
Controlled Goods Program

Report this job

Work requirements

Jobs in Canada