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Added 19 hours ago
Senior / Principal Geotechnical Engineer
AtkinsRéalis
Ottawa, ON · Vaughan, ON
Full-time
We are currently seeking aa dynamic, and growth focused Senior Geotechnical Specialist to join the Geotechnical Practice, providing technical and operational leadership, having superior…
Added 1 day ago
Sr Manager, Clinic Transformation - East
WELL Health Technologies Corp
Toronto, ON
$85,000 to $100,000 CAD / year
Partner with internal data teams to connect CT’s reporting to WELL Health’s broader data infrastructure
Added 1 day ago
Spécialiste principal.e DevOps // Senior DevOps Specialist
SSENSE
Montreal, QC
Full-time
As a Senior DevOps Specialist, your core deliverable is a reliable, scalable, and cost-efficient cloud platform spanning AWS, EKS, and SSENSE's internal developer tooling. You will apply…
Added 1 day ago
Lead Engineer - Systems Dynamics
Beacon Holdings
Canada
Full-time
A senior generalist. Databases, Linux, networking, deployment, application code. You pick up unfamiliar stacks quickly. This role will not wait for you to become an Oracle specialist first.
Added 1 day ago
AVEVA Enterprise SCADA Specialist
SGS
Vancouver, BC
$85,000 to $165,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 1 day ago
Lead Engineer - Systems Dynamics
Beacon Software
Remote, Canada
Full-time · Remote
A senior generalist. Databases, Linux, networking, deployment, application code. You pick up unfamiliar stacks quickly. This role will not wait for you to become an Oracle specialist first.
Added 2 days ago
Cloud Migration Communications Specialist (1893)
Direct IT Recruiting Inc.
Toronto, ON
$65 to $72 CAD / hour
Contract
This role offers exposure to senior leadership, enterprise technology transformation efforts, and a highly visible cloud migration program supporting a planned data center exit initiative.
Added 2 days ago
AVEVA Enterprise SCADA Specialist
SGS
Regina, SK
$85,000 to $165,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
AVEVA Enterprise SCADA Specialist
SGS
AB · Edmonton, AB
$85,000 to $165,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
AVEVA Enterprise SCADA Specialist
SGS
Calgary, AB
$85,000 to $165,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
AVEVA Enterprise SCADA Specialist
SGS
Calgary, AB
$85,000 to $165,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
Edmonton, AB · Calgary, Alberta
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
Vancouver, BC · Calgary, Alberta
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
Regina, SK
$90,000 to $125,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
AB · Edmonton, AB
$90,000 to $1,250,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
Vancouver, BC
$90,000 to $125,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
Calgary, AB
$90,000 to $125,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
Calgary, AB
$90,000 to $125,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Ignition SCADA Specialist
SGS
AB · Edmonton, AB
$90,000 to $1,250,000 CAD / year
Full-time
…solutions provider specializing in industrial automation, SCADA, data historians, and analytics for the energy sector. We work with major oil and gas producers across North America, helping…
Added 2 days ago
Network Edge Specialist
Provincial Health Services Authority
Burnaby, BC
Full-time
Assists with the design, testing, documentation and implementation of PHSA-wide network and telecommunications infrastructure including the selection and installation of new technology by…
Added 2 days ago
Senior Project Manager - Baggage Handling Systems
AtkinsRéalis
Toronto, ON
Full-time
Come join us in reshaping the future with AtkinsRéalis. AtkinsRéalis is hiring a Senior Project Manager - Baggage Handling Systems with proven experience supporting large scale airport or…
Added 2 days ago
Senior Project Manager Consultant
AtkinsRéalis
Toronto, ON
Full-time
Come join us in reshaping the future with AtkinsRéalis. AtkinsRéalis is hiring a Senior Project Manager Consultant with proven experience supporting large scale airport or equivalent major…
Added 2 days ago
Senior Project Manager - Interim Capacity
AtkinsRéalis
Toronto, ON
Full-time
Come join us in reshaping the future with AtkinsRéalis. AtkinsRéalis is hiring a Senior Project Manager - Interim Capacity with proven experience supporting large scale airport or…
Added 2 days ago
Senior Project Manager - Airfield
AtkinsRéalis
Toronto, ON
Full-time
Come join us in reshaping the future with AtkinsRéalis. AtkinsRéalis is hiring a Senior Project Manager - Airfield with proven experience supporting large scale airport or equivalent major…
Added 2 days ago
Senior Regulatory and Environmental Compliance Specialist - Contract
Wolf Midstream
Calgary, AB
Wolf is looking to fill an 18-month contract position as a Regulatory and Environmental Compliance Specialist. This role is responsible for ensuring the organization's compliance with…

Mariner

Senior OT Control Systems - Engineering Specialist

Saint John, NB, Canada

Posting language: English
Posted: Sep 22, 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

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 within complex industrial environments.

Requirements

Candidates must have 15+ years of experience in OT, industrial automation, or process control environments. A degree or diploma in Electrical Engineering, Industrial Automation, or a related field is required, along with 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
Benefits packages

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
Firewalls
Active Directory
Windows Server
VMware
Emerson AMS
Bently Nevada
Prognost
Electrical Engineering
Instrumentation
Controls
Lifecycle Management
Asset Monitoring
Commissioning
Change Management
Process Safety

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