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Added 23 hours ago
H
Mining Potash Lead
HDR
Toronto, ON · Saskatoon, SK · Vancouver, BC
- Full-time
…studies through design and into construction monitoring and operations. You can help clients push boundaries and meet evolving industrial demands while supporting resilient infrastructure…
Added 1 day ago
Technical Due Diligence Analyst
IREN
Vancouver, BC
Job Type: Full-Time | Location: Vancouver, BC | Department: Vancouver, BC | Reporting to: Senior Manager, Innovation | Work Location Type: #hybrid
Added 1 day ago
I
Technical Due Diligence Analyst
IREN
Vancouver, BC
- Full-time
Job Type: Full-Time | Location: Vancouver, BC | Department: Vancouver, BC | Reporting to: Senior Manager, Innovation | Work Location Type: #hybrid
Added 1 day ago
Senior OT Control Systems - Engineering Specialist
Mariner
Saint John, NB
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,…
Added 1 day ago
BD
Senior DevOps Engineer - Cloud Operations
Black Duck
Calgary, AB
- Full-time
Staff. DevOps Engineer will be a key player on the Cloud Operations team responsible for all SaaS and Hosted services across the company's product portfolio. They will proactively work with…
Added 1 day ago
MC
Network Engineer (35135)
Myticas Consulting
Ottawa, ON
- Full-time
We are looking for an experienced Network Service Engineer with strong expertise in customer network service configuration to support the design, implementation, and optimization of network…
Added 1 day ago
AI
Adobe Site Reliability Engineer - Content Delivery Network
Astra-North Infoteck Inc. ~ Conquering today’s challenges, achieving tomorrow’s vision!
Toronto, ON
- Full-time
Senior Site Reliability Engineer - AEM - Content Delivery Network
Added 1 day ago
R
Maintenance Engineer – Electricity Generation Assets
Raise
Burnaby, BC
- Full-time
Raise is currently hiring a Maintenance Engineer – Electricity Generation Assets on behalf of our client. They’re expanding their team to meet growing needs, making this a unique…
Added 1 day ago
P
Sr. React Native Engineer | US/Canada
Pack.com
Remote, Canada
- Remote
…now expanding our mobile surface. We are looking for an elite Senior React Native Engineer to lead the engineering of our iOS and Android mobile apps from development builds through app…
Added 1 day ago
XS
Security Analyst / Engineer / Architect
XChange Software Inc
Mississauga, ON
- Contract
Position 5. Security Operations Analyst / Engineer
Added 1 day ago
TT
Design Engineer, Electrical and Traction Power (13543)
Toronto Transit Commission (TTC)
Toronto, ON · Greater Toronto Area, Canada
- $100,318.4 to $125,434.4 CAD / year
- Full-time
Reports to: Senior Design Engineer, Traction Power
Added 1 day ago
D
Lead, Forward Deployed Engineering
Deliverect
Toronto, ON
- Full-time
Design creative and resilient integration solutions for complex edge cases (such as offline kiosk ordering and failover operations) to protect customer revenue during network disruptions.
Added 1 day ago
NB
QRM CHIEF DEVELOPER
National Bank of Canada
Toronto, ON
- Full-time
Support QRM components, including QIS, ERF, MR and the QRM Framework, throughout installation, configuration, maintenance, upgrades and production operations.
Added 1 day ago
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Global Mining Practice Business Development Leader
HDR
Corner Brook, NL
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
GC
Mine Engineer
Glencore Canada
Sudbury, ON · Greater Sudbury, ON
- Full-time
Reporting to the Senior Mine Engineer, the Mine Engineer is responsible for the coordination and delivery of mine engineering services in support of safe and efficient operations. The role…
Added 2 days ago
G
Mine Engineer
Glencore
Sudbury, ON · Greater Sudbury, ON
- Full-time
Reporting to the Senior Mine Engineer, the Mine Engineer is responsible for the coordination and delivery of mine engineering services in support of safe and efficient operations. The role…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
Burlington, ON
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
Toronto, ON
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
Victoria, BC
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
Z
Senior Penetration Tester AND Red Team
Zoho
Toronto, ON
- Contract
We are seeking a Senior Penetration Tester / Red Team Engineer to support offensive security initiatives through advanced penetration testing, red team operations, and custom security tool…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
London, ON
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
Penticton, BC
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
Richmond Hill, ON
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…
Added 2 days ago
M
Senior CyberArk Security Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
We are looking for an experienced Senior CyberArk Security Engineer to join our global Privileged Access Management (PAM) Engineering team and help strengthen the security, automation,…
Added 2 days ago
H
Global Mining Practice Business Development Leader
HDR
Vancouver, BC
- Full-time
…permitting and feasibility through detailed design, construction, operations, water and mine waste management, and closure and reclamation. You’ll connect clients with integrated technical,…

Mariner

Senior OT Control Systems - Engineering Specialist

Saint John, NB, Canada

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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!

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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

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