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Added 8 hours ago
TA
Senior Software Engineer
Treasure AI
Vancouver, BC
- $132,500 to $171,000 CAD / year
- Full-time
As a Senior Software Engineer on the Realtime/Personalization team, you will be a core technical contributor building Treasure AI's AI-native Personalization Studio and RT2.0 engine.…
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
W
Senior Salesforce Developer
Webflow
Remote, Canada
- Full-time
- Remote
We’re looking for a Senior Salesforce Developer to help Webflow scale our go-to-market systems with quality, scalability, and strong governance. You’ll design and build the Salesforce, CPQ,…
Added 1 day ago
S
Product Manager - SOTI MobiControl
SOTI
Mississauga, ON
- $110,000 to $130,000 CAD / year
- Full-time
…most importantly, be part of a winning team. As the successful Senior Product Manager, you will be responsible for taking ownership of the product line life cycle from strategic planning to…
Added 2 days ago
N
Senior Staff Software Engineer - Money Boxes
Nubank
Toronto, ON
- Full-time
…and financial verticals, we are looking for an exceptional Senior Staff Software Engineer to serve as the chief technical authority for our Money Boxes core…
Added 2 days ago
S
Product Manager - SOTI MobiControl
SOTI
Mississauga, ON
- $110,000 to $130,000 CAD / year
- Full-time
…most importantly, be part of a winning team. As the successful Senior Product Manager, you will be responsible for taking ownership of the product line life cycle from strategic planning to…
Added 2 days ago
MC
Senior Software Engineer - Brokerage Platform
Moomoo Canada
Toronto, ON · North York, ON
- Full-time
We are looking for an experienced Senior Software Engineer to join our engineering team in Toronto.
Added 2 days ago
Senior Data Engineer
Capgemini
Calgary, AB
We are seeking an experienced Databricks Data Engineer to design, develop, and maintain scalable data pipelines and cloud-based data platforms. The ideal candidate will have strong…
Added 2 days ago
A
Senior Python Backend Engineer
Apexon
Toronto, ON
- $120,000 to $150,000 CAD / year
- Contract
The Backend Engineer – Python (API & Platform Engineering) will be responsible for designing, developing, and maintaining scalable backend services and APIs. The role involves contributing…
Added 2 days ago
AC
Database Administrator
Amphenol Communications Solutions
Markham, ON
- Full-time
…and operational maintenance across assigned on-premises and cloud environments. Working with application owners, Infrastructure, IT Security, the Enterprise Data Architect, and data…
Added 2 days ago
MS
Senior Engineer II, Proxy
Menlo Security
Remote, Canada
- Full-time
- Remote
We're hiring a senior engineer to join the team that owns the ingress proxy service. The proxy is the primary path into the product for most users. As AI adoption grows, our customers want…
Added 2 days ago
ES
Expert(e) Réseaux & Sécurité Senior - Senior Network & Security Expert - Montréal
Equans Services Canada & US
Montreal, QC
- Full-time
Equans is looking for a Senior Network & Security Expert at Montreal!
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
MK
ERP Integration & Transformation Lead
Moose Knuckles Canada
Montreal, QC · Greater Montreal Metropolitan Area
- Full-time
Reverse-engineer and document systems and data where documentation is thin and the original implementer is no longer involved.
Added 2 days ago
N
Software Engineer 2 - Kubernetes Backend and Platform Engineering
Nutanix
Vancouver, BC
- $103,000 to $155,000 CAD / year
- Full-time
…that serves modern applications. By taking the best of the Cloud Native Computing Foundation (CNCF) ecosystem, but providing it in an integrated and lifecycle-managed package, NKP delivers…
Added 2 days ago
O
Manager, Software Development
OpenText
Richmond Hill, ON
- Full-time
…engineers and technical specialists working across Java-based cloud services, Python-based AI and document intelligence, React user experiences, enterprise integrations, and platform…
Added 2 days ago
M
Senior Software Engineer
Manulife
Toronto, ON · Waterloo, ON
- Full-time
We are looking for a Senior Software Engineer to join our Affinity Life technology team. In this hands-on role, you will design, develop, modernize, and support mission-critical enterprise…
Added 2 days ago
TG
Senior Network Engineer
TMX Group
Toronto, ON
- Full-time
We are seeking a highly skilled and motivated Senior Network Engineer with 7+ years of experience to join our dynamic infrastructure team. In this full-time role, you will be an integral…
Added 3 days ago
Sr. Consultant - Cloud Infrastructure Architect | Conseiller senior – Architecte d'infrastructure infonuagique, Public Sector | secteur public
Amazon
Vancouver, BC · Ottawa, ON · Toronto, ON · Montreal, QC
The AWS Professional Services organization is a global team of experts that help customers realize their desired business outcomes when using the AWS Cloud. We work together with customer…
Added 3 days ago
Senior QA Engineer
Konrad
Toronto, ON
As a Senior QA Engineer, you will play a hands-on role in engineering quality into complex digital products across web, mobile, API, and backend systems. You will combine strong software…
Added 3 days ago
TG
Senior Network Engineer
TMX Group
Toronto, ON
- Full-time
We are seeking a highly skilled and motivated Senior Network Engineer with 7+ years of experience to join our dynamic infrastructure team. In this full-time role, you will be an integral…
Added 3 days ago
Senior AI Engineer, IT Solutions 1 1
Celestica International LP
Toronto, ON
We are seeking a highly motivated and technically proficient AI Engineer to join our growing Data & Analytics team. In this role, you will be a key liaison between business stakeholders and…
Added 3 days ago
X
Senior Engineer - Enterprise Platforms
Xero
Vancouver, BC
- Full-time
As a Senior Engineer on the Enterprise Platforms team, you will provide technical expertise across the platforms, integrations, automations, and AI tools that support Xero’s global teams.…
Added 3 days ago
X
Senior Forward Deployed Engineer
Xero
Remote, Canada
- Full-time
- Remote
As a Senior Engineer within the Internal AI Accelerator Squad, you will be at the forefront of Xero’s transformation into an AI-native company. You will act as a forward-deployed engineer,…

Closed listing

Mariner Innovations

Senior OT Control Systems - Engineering Specialist

Saint John, NB, Canada

Full-time

This opening has closed.

The original listing is kept below for reference.

Find open jobs More jobs with this employer

About employer

Job details

Job type: Full-time
Closing date: Oct 23, 2026
Posting language: English
Posted: Sep 23, 2026

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Original job description

Archived listing. The details below describe a past opening.

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!

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 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 a relevant engineering or technical field is required, along with deep expertise in DCS, PLC, and industrial networking.

Skills

OT Control Systems
Industrial Automation
DCS
PLC
SCADA
HMI
Safety Instrumented Systems
Industrial Networking
Cybersecurity
Honeywell Experion PKS
Rockwell Automation
System Lifecycle Management
Process Control
Troubleshooting
Commissioning
Asset Monitoring

Benefits

Competitive compensation
Training and development
Career development

Visa sponsorship

Not detected in the job text

Keywords

OT
Industrial Automation
DCS
PLC
SCADA
HMI
SIS
Industrial Networking
Cybersecurity
Honeywell Experion PKS
Rockwell Automation
Studio 5000
FactoryTalk View
Cisco
VMware
Emerson AMS
Bently Nevada
Process Control
Lifecycle Management
Instrumentation
Electrical Engineering
Refining
Petrochemical
Energy
Manufacturing
Utilities
System Integration
Commissioning
Change Management
Operational Technology

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