Find work in Canada.

552,788 jobs across our Canadian network. How we count

Jobs in Canada

25+ jobs

Email me new jobs Save this search

Added 7 mins ago
MI
Jr Weld Technician
Martinrea International
Woodbridge, ON
- Full-time
…metal parts, assemblies and modules, complex fluid management systems and aluminum products. We employ approximately 19,000 skilled and motivated people at manufacturing, engineering and…
Added 3 hours ago
HT
Advanced Applications Blow Molding Specialist
Husky Technologies
Bolton, ON
- Full-time
Title: Advanced Applications Blow Molding Specialist
Added 4 hours ago
BT
IT & Innovation Consultant, SR&ED
Baker Tilly Canada
Windsor, ON
- Full-time
…strong relationships. From audit and tax to consulting and specialist advisory services, we help clients navigate complexity and seize opportunity with…
Added 9 hours ago
RM
M.L.T. Charge - Quality
Ross Memorial Hospital
Kawartha Lakes, ON · Lindsay, ON
- Full-time
Thorough working knowledge of Quality Management Systems (QMS) , Quality Assurance (QA), Quality Control (QC), Point of Care Testing (POCT), and Clinical Laboratory Standard Institute…
Added 9 hours ago
K
Intermediate Instrumentation and Controls specialist
Kleinfelder
Calgary, AB
- Full-time
We are looking to hire an Intermediate Instrumentation and Controls specialist in our Edmonton Office and Calgary location. Reporting to the Instrumentation & Controls Lead, the…
Added 9 hours ago
HT
Advanced Applications Blow Molding Specialist
Husky Technologies
Bolton, ON
- Full-time
Title: Advanced Applications Blow Molding Specialist
Added 9 hours ago
K
Intermediate Instrumentation and Controls specialist
Kleinfelder
AB · Edmonton, AB
- Full-time
We are looking to hire an Intermediate Instrumentation and Controls specialist in our Edmonton Office and Calgary location. Reporting to the Instrumentation & Controls Lead, the…
Added 11 hours ago
KI
Intermediate Instrumentation and Controls specialist
Kleinfelder Inc
Calgary, AB · Edmonton, AB
- Full-time
We are looking to hire an Intermediate Instrumentation and Controls specialist in our Edmonton Office and Calgary location. Reporting to the Instrumentation & Controls Lead, the…
Added 15 hours ago
HT
Advanced Applications Blow Molding Specialist
Husky Technologies
Bolton, ON
- Full-time
Title: Advanced Applications Blow Molding Specialist
Added 21 hours ago
M&
Jr Weld Technician
Mitchell & Associates
Vaughan, ON
- Full-time
…metal parts, assemblies and modules, complex fluid management systems and aluminum products. We employ approximately 19,000 skilled and motivated people at manufacturing, engineering and…
Added 21 hours ago
RM
M.L.T. Charge - Quality
Ross Memorial Hospital
Kawartha Lakes, ON · Lindsay, ON
- Full-time
Thorough working knowledge of Quality Management Systems (QMS) , Quality Assurance (QA), Quality Control (QC), Point of Care Testing (POCT), and Clinical Laboratory Standard Institute…
Added 21 hours ago
HT
Advanced Applications Blow Molding Specialist
Husky Technologies
Bolton, ON
- Full-time
Title: Advanced Applications Blow Molding Specialist
Added 21 hours ago
GD
Design Engineering C4 Systems Associate Specialist
General Dynamics Land Systems–Canada
London, ON
- Contract
The C4 (Command, Control, Communications, Computers) Design Engineering role is responsible to execute full life cycle design activity on any assigned task within the subsystem and take…
Added 21 hours ago
S
Spécialiste en applications ERP / ERP Application Specialist
Smardt
Dorval, QC
- Full-time
Added 1 day ago
Q
Power Systems Specialist III
Qualus
Bolton, ON
- Full-time
Power your future with Qualus as a Power Systems Engineer III. The Engineer III is responsible for providing technical and engineering support for field work, and office work performing…
Added 1 day ago
MD
Artificial Intelligence (AI) Support Developer - Information Technology Spec 3
Minnesota Direct Care and Treatment
Saint-Paul, NB · St.-Paul, NB
- Full-time
This position exists to provide application development and support for systems that incorporate Artificial Intelligence (AI) as part of development projects. The scope of the work will be…
Added 1 day ago
MD
IT Advanced Project Manager - ITS4
Minnesota Direct Care and Treatment
Saint-Paul, NB · St.-Paul, NB
- Full-time
Job Class: Information Technology Specialist 4
Added 1 day ago
GD
Design Engineering C4 Systems Associate Specialist
General Dynamics Land Systems–Canada
London, ON
- Contract
The C4 (Command, Control, Communications, Computers) Design Engineering role is responsible to execute full life cycle design activity on any assigned task within the subsystem and take…
Added 1 day ago
HT
Advanced Applications Blow Molding Specialist
Husky Technologies
Bolton, ON
- Full-time
Title: Advanced Applications Blow Molding Specialist
Added 1 day ago
BH
Specialist Engineer - Electrical
BC Hydro
Burnaby, BC
- Temporary
Specialist Engineer - Electrical Site – Campbell River Systems - Full Time Temporary
Added 1 day ago
ST
Senior IT Systems Specialist
Saltworks Technologies
Richmond, BC
- $110,000 to $140,000 CAD / year
- Full-time
Saltworks Technologies has an immediate opening for a Senior IT Systems Specialist. You will own our technology infrastructure, from on-premises servers and cloud platforms to enterprise…
Added 1 day ago
U
QA Specialist
UPS
Burlington, ON
- Full-time
The Healthcare Quality Assurance (QA) Specialist overall Quality System status of the distribution center. Acts in compliance to drug, medical device, and local regulations. And ensures…
Added 1 day ago
U
QA Specialist
UPS
Burlington, ON
- Full-time
Added 1 day ago
U
QA Specialist
UPS
Burlington, ON
- Full-time
The Healthcare Quality Assurance (QA) Specialist overall Quality System status of the distribution center. Acts in compliance to drug, medical device, and local regulations. And ensures…
Added 1 day ago
A
Spécialiste De La Documentation En R&D
Actalent
Montreal, QC
- $25 to $33 CAD / hour
- Contract
We are seeking a detail-oriented R&D Documentation Specialist to support engineering and product lifecycle documentation activities. This role is responsible for managing controlled…

Mariner

Senior OT Control Systems - Engineering Specialist

Saint John, NB, Canada

Apply About employer

Applications open in a new tab.

Job details

Apply by: Nov 21, 2026
Posting language: English
Posted: Sep 22, 2026

Original job description

WHO WE ARE

Mariner innovates always and everywhere, turning novel ideas into practical solutions. From products and services to venture creation, we build better futures powered by people. Our purpose has always been to be a great, everlasting technology company for those who make an impact - elevating people, data, and technology in the best way to solve hard problems. We partner with people embracing change, leveraging data, cybersecurity, cloud, and change management to drive successful business outcomes that matter to our customers.

Mariners build for change. Like SHIFT Energy, our energy management and decarbonization company. Or East Valley Ventures, created to scale social economic impact in our communities through investment and mentorship of emerging change-makers and their companies.

Mariner’s purpose has always been to be a great, everlasting technology company and the core values that guide us every day are:

OUR VALUES

We care for our team.
We care about the impact we have on our community.
We serve by solving complex problems.
We grow because growth fuels opportunities.
We innovate always and everywhere.
We build a business that lasts.

OVERVIEW OF THE ROLE:

We are seeking a Senior OT Control Systems Engineer to join a critical industrial operations environment in Saint John, New Brunswick. In this role, you will be responsible for the design, support, optimization, and security of Operational Technology (OT) and industrial automation systems that enable safe and reliable operations. The successful candidate will bring extensive experience in process control, industrial networking, distributed control systems, and automation technologies within complex industrial settings such as refining, manufacturing, utilities, or other process-driven environments.

This is an on-site position in Saint John, NB.

WHAT YOU’LL BE DOING IN THE ROLE:

Lead the design, implementation, and enhancement of OT and industrial control system solutions to support operational and business objectives.
Configure, maintain, and troubleshoot automation systems, including DCS, PLC, HMI, SIS, and asset monitoring platforms.
Develop and maintain control strategies, system configurations, and automation standards to improve performance, reliability, and safety.
Design and support industrial networks, ensuring high availability, cybersecurity compliance, and secure system integration.
Plan and execute system upgrades, patching, lifecycle management activities, and technology modernization initiatives.
Monitor system health, investigate operational issues, and provide advanced troubleshooting support for critical automation infrastructure.
Lead commissioning, startup, testing, and validation activities for new and modified control systems.
Collaborate with operations, engineering, maintenance, cybersecurity, and external vendors to deliver reliable and secure automation solutions.
Support process safety initiatives, risk assessments, and change management activities while maintaining technical documentation and procedures.

WHAT SKILLS / QUALIFICATIONS YOU’LL NEED TO DO THE JOB:

Required Experience

15+ years of experience supporting Operational Technology (OT), industrial automation, or process control environments, including significant experience in heavy industrial operations.
Strong expertise with industrial control technologies, including DCS, PLC, SCADA, HMI, Safety Instrumented Systems (SIS), and industrial networking platforms.
Hands-on experience with OT infrastructure, cybersecurity practices, network architecture, and system lifecycle management.
Proven experience troubleshooting, maintaining, and optimizing complex automation and control environments.
Previous experience in refining, petrochemical, energy, utilities, manufacturing, or other process-intensive industries is highly desirable.

Technical Expertise

Honeywell Experion PKS, TPS/TDC, Safety Manager, and HMI Web.
Rockwell Automation platforms, including Studio 5000 and FactoryTalk View.
Industrial Ethernet, Cisco networking, firewalls, and OT cybersecurity solutions.
Active Directory, Windows Server environments, VMware, and related OT infrastructure technologies.
Asset monitoring and reliability systems such as Emerson AMS, Bently Nevada, CCC, and Prognost.

Education & Certifications

Degree or diploma in Electrical Engineering, Electrical/Electronics Technology, Industrial Automation, Instrumentation & Controls, or a related field.
Professional engineering designation, engineering technologist certification, or relevant industry certifications are considered assets.
Certifications in Honeywell technologies, Cisco networking, OT/ICS cybersecurity, instrumentation, or electrical disciplines are highly regarded

Core Competencies & Skills

Demonstrated ability to excel in a dynamic, operationally driven environment while maintaining a high level of accuracy and attention to detail.
Strong organizational and time management skills, with the ability to effectively prioritize competing demands.
Excellent communication and interpersonal skills, supported by strong analytical capabilities and sound technical judgment.
Adaptable and responsive, with the ability to quickly adjust priorities based on operational requirements and business needs.
Self-motivated professional who can work independently while contributing effectively within cross-functional and collaborative teams.
Proven problem-solving, troubleshooting, and critical-thinking abilities in complex technical environments.
Strong hands-on technical expertise in industrial networking, network infrastructure, control systems hardware, panel design, installation, maintenance, and repair.
Commitment to operational excellence, continuous improvement, and the delivery of reliable, secure, and high-performing automation solutions.

WHY MARINER?

We believe in making a positive impact in the communities where we live and work! Not only are we passionate about nurturing a thriving technology sector here in Atlantic Canada, but we are also committed to solving technology challenges that will make an impact worldwide. Technology is everlasting, and we take pride in connecting world class talent to world class projects and business solutions.

If you are an IT Professional, Software Professional, or Management Consultant, that is passionate about career development, data, and problem solving, we want to hear from you! If this sounds like someone you know, share this with them so they do not miss the opportunity to experience Mariner!

To achieve this, we know we need to be all in on training and development of our team so we can continue to move the needle in the technology sector together. Of course, we offer competitive compensation and benefits packages to our team, but our competitive edge is the development and training that our team experiences every day.

Be part of our vibrant community that values diversity and embraces inclusion at every level. We are committed to fostering a culture where individuals from all backgrounds and walks of life feel empowered to contribute their unique perspectives. Our collaborative environment celebrates the richness of ideas and experiences, and we believe that by embracing diversity, we can achieve greater innovation and excellence together. Come and help us create a workplace that reflects the beautiful tapestry of our global community.

Join our growing team!

Apply About employer

More about this job

Responsibilities

The Senior OT Control Systems Engineer will lead the design, implementation, and optimization of industrial automation and control systems. They are responsible for ensuring the security, reliability, and performance of OT infrastructure while collaborating with cross-functional teams to support operational objectives.

Requirements

Candidates must have 15+ years of experience in OT, industrial automation, or process control environments, particularly in heavy industrial sectors. A degree or diploma in a relevant engineering or technical field is required, along with deep expertise in DCS, PLC, and industrial networking.

Skills

Operational Technology
Industrial Automation
Process Control
DCS
PLC
SCADA
HMI
Safety Instrumented Systems
Industrial Networking
Cybersecurity
System Lifecycle Management
Honeywell Experion PKS
Rockwell Automation
VMware
Windows Server
Troubleshooting

Benefits

Training and development
Competitive compensation
Inclusive culture

Visa sponsorship

Not detected in the job text

Keywords

Operational Technology
Industrial Automation
Process Control
DCS
PLC
SCADA
HMI
Safety Instrumented Systems
Industrial Networking
Cybersecurity
Honeywell Experion PKS
Rockwell Automation
Studio 5000
FactoryTalk View
Cisco
Active Directory
Windows Server
VMware
Emerson AMS
Bently Nevada
Prognost
Asset Monitoring
Lifecycle Management
Commissioning
Process Safety
Change Management
Refining
Petrochemical
Energy
Manufacturing

Report this job