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Added 12 mins ago
Senior Geotechnical Engineer
Pinchin Canada
Oshawa, ON
Full-time
Pinchin is seeking a Senior Geotechnical Engineer to join our Geotechnical Services team in one of our Southern Ontario offices. This position reports to the Geotechnical Services…
Added 12 mins ago
Senior Geotechnical Engineer
Pinchin Canada
Hamilton, ON
Full-time
Pinchin is seeking a Senior Geotechnical Engineer to join our Geotechnical Services team in one of our Southern Ontario offices. This position reports to the Geotechnical Services…
Added 12 mins ago
Senior Geotechnical Engineer
Pinchin Canada
Mississauga, ON
Full-time
Pinchin is seeking a Senior Geotechnical Engineer to join our Geotechnical Services team in one of our Southern Ontario offices. This position reports to the Geotechnical Services…
Added 12 mins ago
Senior Geotechnical Engineer
Pinchin Canada
London, ON
Full-time
Pinchin is seeking a Senior Geotechnical Engineer to join our Geotechnical Services team in one of our Southern Ontario offices. This position reports to the Geotechnical Services…
Added 12 mins ago
Senior Java Software Engineer
RE Partners
Mississauga, ON
Contract
We are seeking an experienced, hands-on Senior Java Engineer to join a newly established Deployment Security and Software Reliability Engineering team supporting one of the world’s largest…
Added 14 mins 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 42 mins ago
Regional Sourcing Manager (Electronics Lane)
Husky Technologies
Bolton, ON
Full-time
…achieve material productivity targets and support the global operations with best in class supplier on-time and quality…
Added 42 mins ago
Staff Engineer
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$42 to $50 USD / hour
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Collaborate closely with Supply Chain, Quality, and Operations to ensure smooth flow of daily work. Execute pilot manufacturing operations when needed to ensure smooth flow of daily work.
Added 42 mins ago
Lead Electrical Engineer
Worley
Vancouver, BC
Full-time
…across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating…
Added 45 mins ago
Process Engineer- Pharma/Biotech
LAPORTE L.E.I.
Toronto, ON
Process Engineer – Pharmaceutical / Biotech – Toronto, ON
Added 45 mins ago
Engineering Co-op Student - January 2027
Hudbay Minerals
Princeton, BC
$65,624 to $68,744 CAD / year
Reporting to the Senior Mine Engineer, Technical Services, the Engineering Co-op Student will apply their engineering knowledge to support both Engineering and Operations teams. As a member…
Added 58 mins ago
Maintenance Repair Analyst
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Toronto, ON · North York, ON
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Added 58 mins ago
Lead Electrical Engineer, Resources
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…Toronto Area, Saskatoon SK, St John's NL , as the Lead Electrical Engineer, you will lead as a senior subject matter expert in the electrical design for both new construction and brownfield…
Added 58 mins ago
Lead Electrical Engineer, Resources
WSP in Canada
Whitby, ON
Full-time
…Toronto Area, Saskatoon SK, St John's NL , as the Lead Electrical Engineer, you will lead as a senior subject matter expert in the electrical design for both new construction and brownfield…
Added 59 mins ago
Lead Electrical Engineer
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Calgary, AB
Full-time
…across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating…
Added 59 mins ago
Lead Electrical Engineer
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…across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating…
Added 59 mins ago
Product Development Engineer|
Husky Technologies
Bolton, ON
Full-time
Our Development Engineering team is looking to hire an experienced Product Development Engineer. The successful candidate will lead the technical development of packaging products working…
Added 59 mins ago
Process Engineer- Pharma/Biotech
LAPORTE
Toronto, ON
Full-time
Process Engineer – Pharmaceutical / Biotech – Toronto, ON
Added 59 mins ago
Senior Foundry Engineer (Non-Ferrous)
Engineering Search Firm Inc.
Vaughan, ON
$90,000 to $100,000 CAD / year
Full-time
We are seeking an experienced Senior Foundry Engineer to provide technical leadership within a fast-paced manufacturing environment specializing in non-ferrous castings.
Added 59 mins ago
Designer, Development (Service)
Husky Technologies
Bolton, ON
Full-time
The service team is currently seeking a Mechanical engineer/designer to specialize in resolving service issues.
Added 1 hour ago
Mechanical Team Lead
Englobe
Moncton, NB
Full-time
…innovation and collaboration are an integral part of our daily…
Added 1 hour ago
LEAD SPECIALIST MINING ENGINEER - CORPORATE DEVELOPMENT
Gold Fields Windfall
Montreal, QC
Full-time
Our client is currently seeking a LEAD SPECIALIST MINING ENGINEER - CORPORATE DEVELOPMENT.
Added 1 hour ago
Maintenance Repair Analyst
The Seaboard Transport Group
Moncton, NB
Full-time
…theoretical engineering with practical shop reality; professional engineer, Certified Engineering Technologist/Technician, or comparable maintenance credential is an…
Added 1 hour ago
Maintenance Repair Analyst
The Seaboard Transport Group
Dartmouth, NS
Full-time
…theoretical engineering with practical shop reality; professional engineer, Certified Engineering Technologist/Technician, or comparable maintenance credential is an…
Added 1 hour ago
Vehicle Dynamics Engineer
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Windsor, ON
$40 to $42 CAD / hour
Contract
Responsibilities may include Operations of the Driving Simulator

Mariner

Senior OT Control Systems - Engineering Specialist

Saint John, NB, Canada

Apply by: Nov 30, 2026
Posting language: English
Posted: Sep 21, 2026

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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

Lead the design, implementation, and optimization of OT and industrial control systems to ensure safe and reliable operations. Collaborate with cross-functional teams to manage system upgrades, cybersecurity compliance, and advanced troubleshooting for critical infrastructure.

Requirements

Requires 15+ years of experience in OT, industrial automation, or process control environments within heavy industry. Candidates must possess strong technical expertise in DCS, PLC, industrial networking, and relevant engineering or technology certifications.

Skills

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

Benefits

Competitive compensation
Training and development
Career development

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
Instrumentation
Electrical Engineering
System Lifecycle Management
Asset Monitoring
Change Management
Process Safety
Industrial Ethernet
Firewalls
Commissioning

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