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Added 8 mins ago
L
Forward Deployed Engineer / Implementation Consultant, Operations Systems + AI Automation
LevelOps
Montreal, QC
- Full-time
…Hands-on lead role, no people management. You will be our most senior person in the field, working directly with the…
Added 53 mins ago
T&
Senior Consultant, Infrastructure Cost & Commercial (Senior Estimator/QS)
Turner & Townsend
Toronto, ON
- Full-time
…infrastructure projects and are comfortable operating as a consultant and trusted advisor to clients and…
Added 4 hours ago
SC
Senior/Principal Resource Geologist
SRK Consulting
Toronto, ON
- Full-time
As a senior to principal level consultant, your general responsibilities will include mineral resource estimation, technical reporting and due diligence project reviews. An important aspect…
Added 4 hours ago
SC
Senior Consultant (Geology)
SRK Consulting
Toronto, ON
- $120,000 to $160,000 CAD / year
- Full-time
SRK Consulting (Canada) Inc. (SRK) is seeking a Senior Consultant (Geology) for a permanent, full-time position in our Toronto, ON office (1500 – 155 University Avenue). SRK’s Ontario,…
Added 4 hours ago
SC
Intermediate Geotechnical/Rock Mechanics Engineer
SRK Consulting
Vancouver, BC
- $85,000 to $110,000 CAD / year
- Full-time
The ability to work independently and remotely within a small team under the leadership of a Senior/Principal Consultant.
Added 6 hours ago
S
Technical Consultant
SymphonyAI
UNAVAILABLE, Ontario
- Full-time
As a Technical Consultant, you’ll support the implementation and configuration of our financial crime and compliance platform across SaaS and client environments. Working from defined…
Added 6 hours ago
S
Technical Consultant
SymphonyAI
UNAVAILABLE, Ontario
- Full-time
As a Technical Consultant, you’ll support the implementation and configuration of our financial crime and compliance platform across SaaS and client environments. Working from defined…
Added 20 hours ago
YC
Senior Developer, D365
Yoush Consulting
Toronto, ON
- Full-time
Welcome to Yoush Consulting. Are you an independent IT Consultant or wish to become one?
Added 23 hours ago
OD
Sr. Boomi Consultant
OSI Digital
Vancouver, BC
- $60,000 to $120,000 CAD / year
- Full-time
Added 23 hours ago
CA
Account Executive - Emerging & Commercial Acc
CloudKettle, a Bell Canada company
Toronto, ON
- Full-time
…mentorship, structured onboarding, and hands-on guidance from senior leaders to help you master enterprise tech sales and grow within the Salesforce…
Added 1 day ago
TH
Senior Project Manager (Capital Planning and Redevelopment)
Trillium Health Partners
Mississauga, ON
- $53 to $66.25 CAD / hour
- Full-time
Position: Senior Project Manager, Capital Planning and Redevelopment
Added 1 day ago
BT
IT & Innovation Consultant, SR&ED
Baker Tilly Canada
Windsor, ON
- Full-time
We are looking for an IT & Innovation Consultant, SR&ED to join our team - a role where your expertise will drive meaningful outcomes and your ambition will help shape what comes next.…
Added 1 day ago
H
Senior Management Consultant
HDR
Burlington, ON · Kingston, ON · Ottawa, ON · Richmond Hill, ON · Toronto, ON
- Full-time
HDR is looking for a Senior Management Consultant to join our Canadian Water Business Group. The successful candidate will be involved with all aspects of our Water Business Group program.…
Added 1 day ago
H
Senior Program Manager
HDR
Burlington, ON · Kingston, ON · Ottawa, ON · Richmond Hill, ON · Toronto, ON
- Full-time
Senior Program Manager responsibilities include:
Added 1 day ago
K
Senior Consultant, Enterprise Performance Management - Anaplan, OneStream and Oracle
KPMG
ON · Toronto, Ontario
- Full-time
Provide leadership, direction, and guidance to senior level client stakeholders and be seen as a subject matter expert.
Added 1 day ago
W
Associate Technical Consultant, Environmental Scientist
Worley
Calgary, AB · Edmonton, AB
- Full-time
Senior Environmental Scientist or Engineer – Contaminated Sites
Added 1 day ago
Senior Healthcare Consultant (Future Opportunities)
Mariner
NB · NL · NS · PE
We are seeking Senior Healthcare Consultants to support our client's technology initiatives. The ideal candidate will play a key role in bridging gaps between clinical workflows and…
Added 1 day ago
MC
Senior Retail Sales Associate
Moores Clothing
Belleville, ON
- Full-time
Our Senior Retail Sales Consultant is responsible for all aspects of the customer experience within multiple businesses (retail, rental, custom, and omni-channel). This position would be a…
Added 1 day ago
KC
Senior Consultant, ESG Assurance Services
KPMG Canada
Toronto, ON
- Full-time
Our ESG Assurance Services practice in Toronto is seeking a Senior Consultant to support the delivery of ESG assurance services to public and private sector clients across a range of…
Added 1 day ago
Senior Systems Analyst
OCS Ontario Cannabis Store
Toronto, ON
We're looking for a Senior Systems Analyst to join our team.
Added 1 day ago
LC
Senior Risk Advisory Consultant
Loblaw Companies Limited
Brampton, ON
- Full-time
As a Senior Risk Advisory Consultant within Assurance & Advisory, you will help lead and execute high-priority advisory and assurance engagements across Loblaw. This role is not traditional…
Added 1 day ago
H
Senior Project Manager, Environmental Assessments and TRPAPs
HDR
Toronto, ON
- Full-time
In the role of Senior Project Manager, Environmental Assessments and TRPAPs we'll count on you to:
Added 1 day ago
CL
Senior Beauty Sales Consultant
Chatters Limited Partnerships
Mississauga, ON
- Full-time
We are looking for a Senior Beauty Sales Consultant at our Square One Mall, Mississauga Retail Salon!
Added 1 day ago
CL
Senior Beauty Sales Consultant
Chatters Limited Partnerships
Burlington, ON
- Part-time
We are looking for a Senior Beauty Sales Consultant at our Mapleview Mall, Burlington Retail Salon!
Added 2 days 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,…

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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