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Mariner

Integration Engineer - SHIFT

Saint John, NB, Canada

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Job details

Apply by: Oct 31, 2026
Experience: 4+ years of experience in systems integration, solution architecture, or technical delivery roles in industrial, IoT, smart buildings, or OT/IT environments.
Posting language: English
Posted: Sep 1, 2026

Original job description

WHO WE ARE:

SHIFT Energy is part of the Mariner group of companies. We’re working at the intersection of AI and the Industrial Internet of Things (IIoT) to deliver advanced monitoring, automation and control systems for central plants. These plants represent one of the single biggest opportunities to reduce energy use, water use and CO2 emissions in North America. We help our clients achieve best-in-class central plant performance, reduce energy use, carbon emissions and costs. We optimize the operation, control, and maintenance of central plants across sectors including manufacturing, healthcare, education, commercial real estate and more.

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 looking for an Integration Engineer – BAS/HVAC Systems to join our team. This individual will be a hands-on subject matter expert on HVAC and central plant systems and will own the design, deployment and operation of customer site integrations.

In this role, you will be responsible for integrating SHIFT Energy IoT devices (EOS Gateways) with on-premises Building Automation Systems (BAS) and back-end EOS services across multiple deployment models. You will combine OT/IT integration expertise with deep mechanical and controls domain knowledge and post-deployment operations support. This is a customer-facing role that works directly with customers’ IT, OT and facilities management teams, as well as mechanical contractors, to ensure integrations are correct, reliable, secure and aligned with underlying building systems operations.

WHAT YOU’LL BE DOING IN THE ROLE:

Solution Design and Integration Leadership

Define the integration approach for each site, including network segmentation, data flows, protocols, security considerations, and connectivity requirements between customer systems and EOS.
Lead technical discovery and integration design with customer Architecture, IT and OT teams to integrate EOS with Building Automation Systems (BAS) and related site systems.
Produce and maintain integration specifications and implementation plans, including site readiness requirements, integration approach, and commissioning and acceptance criteria.
Embed key security requirements into every integration, including secure connectivity patterns, least privilege, network segmentation, and any compensating controls required to meet customer security and regulatory compliance requirements.
Identify technical risks and constraints early and drive resolution through customer coordination and internal escalation as needed.

HVAC and Central Plant Domain Expertise

Serve as SHIFT’s hands-on subject matter expert on BAS, HVAC and central plant systems, their sequences of operation, and their underlying communication and integration protocols.
Translate mechanical system behavior, equipment setup and control sequences, and reconcile them with EOS optimizations to ensure seamless integration and operations.
Lead BAS and mechanical point discovery and mapping. Identify points of interest, validate engineering units, and confirm control relationships.
Advise on chiller plant and HVAC optimization strategy and how EOS setpoint recommendations interact with existing BAS control logic.

Post-Integration Operations Support (Integration/Ops)

Monitor gateway and site integration health post-deployment, ensuring stable data acquisition, connectivity, telemetry quality and performance.
Troubleshoot integration issues end-to-end, including network connectivity, protocol translation, BAS mappings, gateway services and configuration drift, performing root-cause analysis and corrective actions.
Establish operational runbooks and incident response workflows for recurring integration issues.
Provide escalation support for complex field and production incidents, coordinating across internal teams and customer stakeholders.

WHAT SKILLS / QUALIFICATIONS YOU’LL NEED TO DO THE JOB:

4+ years of experience in systems integration, solution architecture, or technical delivery roles in industrial, IoT, smart buildings, or OT/IT environments.
Deep, hands-on HVAC and central plant experience, including mechanical systems, sequences of operation, and plant optimization.
Hands-on experience integrating with Building Automation Systems (BAS) and related protocols and standards (e.g., BACnet, Modbus, OPC UA, REST APIs), with a strong command of BACnet in particular.
Strong networking fundamentals and practical experience with enterprise and industrial networking, including subnets/VLANs, routing, firewall rules, VPNs, secure connectivity patterns and network segmentation.
Proficiency in Python and Linux scripting to support integration and automation activities.
Proven troubleshooting ability across software, network and field environments, including structured root-cause analysis.
Strong conceptual thinking with the ability to understand advanced issues and their implications, exercising independent judgment in determining methods, techniques and evaluation criteria for obtaining results.

PREFERRED QUALIFICATIONS:

System commissioning experience or an equivalent controls-commissioning background.
Familiarity with major BAS platforms (e.g., Johnson Controls Metasys, Siemens Desigo, Honeywell Experion, Tridium Niagara).
Familiarity with cybersecurity concepts in OT environments, including IEC 62443-style segmentation thinking, least privilege and secure remote access patterns.
Experience with Linux-based gateways, containerized services, edge computing and remote fleet management.

CORE COMPETENCIES:

Strong customer-facing communication skills, with the ability to interact effectively with customers’ technical stakeholders.
An ownership mindset, with accountability for delivery quality and operational stability.
Strong documentation habits and the ability to standardize repeatable processes.
Pragmatic problem-solving skills under real-world constraints, including site conditions, network policies and vendor dependencies.

TRAVEL REQUIREMENTS:

Occasional travel to customer sites is required to support gateway installation, commissioning and complex integration troubleshooting. Travel requirements will vary based on customer needs and deployment schedules.

SHIFT OFFERS YOU:

A values-driven workplace where people like you really matter.
Attractive salary and equity-based rewards program.
Retirement savings program, health, dental, vision, life and disability insurance plans, and access to e-health care.
Paid vacation, maternity/parental leave, and paid sick leave.
Unlimited training.

Central plant optimization is one of the single biggest opportunities to reduce energy demand, CO2 and water consumption in North America. If this role interests you, and you meet the qualifications, we’d love to hear from you.

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More about this job

Responsibilities

The Integration Engineer will lead the design, deployment, and operation of customer site integrations by connecting IoT gateways with Building Automation Systems. They will serve as a subject matter expert to troubleshoot integration issues and ensure reliable, secure data acquisition across mechanical and control systems.

Requirements

Candidates must have at least 4 years of experience in systems integration or technical delivery within industrial or IoT environments. Proficiency in HVAC systems, BAS protocols like BACnet, and networking fundamentals is required, along with scripting skills in Python and Linux.

Skills

Systems integration
HVAC
Central plant systems
Building automation systems
BACnet
Modbus
OPC UA
REST APIs
Networking fundamentals
Python
Linux scripting
Root-cause analysis
IoT
OT/IT integration
Commissioning
Cybersecurity

Benefits

Retirement savings program
Health insurance
Dental insurance
Vision insurance
Life insurance
Disability insurance
E-health care access
Paid vacation
Maternity leave
Parental leave
Paid sick leave
Unlimited training
Equity-based rewards program

Visa sponsorship

Not detected in the job text

Keywords

Integration Engineer
SHIFT Energy
IIoT
BAS
HVAC
EOS Gateways
BACnet
Modbus
OPC UA
REST APIs
Python
Linux
Network segmentation
VLANs
Cybersecurity
IEC 62443
Tridium Niagara
Johnson Controls Metasys
Siemens Desigo
Honeywell Experion
Edge computing
Commissioning
Root-cause analysis
Telemetry
Automation
Central plant optimization
OT/IT integration
Mechanical systems
Control sequences
System architecture

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