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Added 1 month ago
CC
Geologist, Mine
Cameco Corporation
SK · Saskatchewan, Canada
- Full-time
…activity, underground mapping of development headings, computerized data management, data quality assurance/quality control (QA/QC) and radiometric…
Added 1 month ago
Environmental Engineer / Geoscientist
WSP
Vancouver, BC
As an Environmental Engineer/Geoscientist with WSP's Mine Water & Environment team, you will help address complex environmental challenges at legacy, abandoned, and operating mine sites in…
Added 1 month ago
AD
Senior Project Manager - Shopify Expert
Avex Designs
Remote, Canada
- Full-time
- Remote
Understand data modeling, mapping, and migration practices.
Added 1 month ago
TT
Structural Vibration Engineer
Thornton Tomasetti
Mississauga, ON
- Full-time
Thornton Tomasetti is seeking a Senior Engineer to join our Mississauga-based Acoustics, Noise & Vibration team. This role is primarily focused on structural vibration assessment, design,…
Added 1 month ago
Principal AI Engineer - Context - Agents and Context
Elastic
Canada
As a Principal AI Engineer, you own the improvement loop of this product end to end: how agents, automations and skills behave in production, how we observe them, how we evaluate them, and…
Added 1 month ago
MI
QUALITY ENGINEER
Magna International
Concord, ON
- Full-time
ASQC certification as a Quality Engineer (CQE) preferred
Added 1 month ago
AM
Process Planner
Array Marketing
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…Planner to support accurate manufacturing planning, production data integrity, and the timely release of process plans. You will review Bills of Materials (BOMs) against engineering…
Added 1 month ago
ST
Senior Systems Engineer I
STEMCELL Technologies
Burnaby, BC
- Full-time
We’re looking for a Senior Systems Engineer to lead the design, implementation, operation, and continuous improvement of business-critical systems and infrastructure that enable STEMCELL’s…
Added 1 month ago
P
Operations Engineering - Continental Shift
Pliteq
Woodbridge, ON
- Full-time
Provide engineering support, resolve quality issues, determine improvement parameters, conduct root cause analysis, review products for quality and conformance.
Added 1 month ago
R
Software Engineer
ResMed
Halifax, NS · CA Canada (ResMed Halifax)
- Full-time
At Resmed, technology has a direct impact on people's lives. As a Software Engineer within our Digital Product Engineering team, you'll help build and evolve the cloud-based platforms and…
Added 1 month ago
MI
Quality Engineer
Magna International
Toronto, ON
- Full-time
The Quality Engineer will provide technical support, from a quality perspective, in the resolution of production concerns. Will also be supporting the launch of new programs. The Engineer…
Added 1 month ago
MI
Manufacturing Engineer
Magna International
Toronto, ON
- Full-time
…activities, engineering changes, and VAVE activities. Support quality fast response meetings and trouble shoot production issues on the line. Be able to update and create PFMEA’s, process…
Added 1 month ago
OM
Engineer In Training (EIT)
Orla Mining
ON · Musselwhite Mine, Ontario
- Full-time
As we continue to grow, we are looking for a motivated Engineer-In-Training (EIT) to join our team. The successful candidate will have the opportunity to gain hands-on experience across…
Added 1 month ago
TC
Cloud Data Engineer
Tata Consultancy Services
Toronto, ON
- $100,000 to $120,000 CAD / year
- Full-time
Ensure data quality, governance, security, and compliance standards are met.
Added 1 month ago
TC
Data Engineer
Tata Consultancy Services
Toronto, ON
- $90,000 to $110,000 CAD / year
- Full-time
Experience in analyzing data quality issues is important for maintaining data integrity.
Added 1 month ago
M
Ingénieur Support Mainframe / Mainframe Support Engineer
mthree
Montreal, QC
- Full-time
We have a global presence and are experts in delivering exceptional quality to our client base, providing consulting services across Risk, Regulation & Compliance; Vendor Products;…
Added 1 month ago
VS
Cloud & DevOps Engineer Co-op (May 2027 | 12-16 months)
Vena Solutions
Remote, Canada
- Internship
…alongside teams focused on platform infrastructure, DevOps, quality assurance, or security, getting hands-on exposure to how Vena designs, builds, tests, and operates its infrastructure at…
Added 1 month ago
Ingénieur Support Mainframe / Mainframe Support Engineer
mthree
Montreal, QC
We have a global presence and are experts in delivering exceptional quality to our client base, providing consulting services across Risk, Regulation & Compliance; Vendor Products;…
Added 1 month ago
J
Process Planner
Toronto, ON · Scarborough, Ontario
- Full-time
…Planner to support accurate manufacturing planning, production data integrity, and the timely release of process plans. You will review Bills of Materials (BOMs) against engineering…
Added 1 month ago
WI
Senior Technical Manager, Geotechnical Engineering
WSP in Canada
Nanaimo, BC
- Full-time
As a Principal Geotechnical Engineer specializing in Dams, based on Vancouver Island or elsewhere in British Columbia, you will help deliver landmark dam projects that support resilient,…
Added 1 month ago
WI
Senior Technical Manager, Geotechnical Engineering
WSP in Canada
Vancouver, BC
- Full-time
As a Principal Geotechnical Engineer specializing in Dams, based on Vancouver Island or elsewhere in British Columbia, you will help deliver landmark dam projects that support resilient,…
Added 1 month ago
A
Ingénieur de support en service pour les systèmes de commandes de vol & hydrauliques ATA27/29 / In-service support engineer for Flight Controls & Hydraulics Systems ATA27/29
Airbus
Montreal, QC · Mirabel, QC
- Full-time
Added 1 month ago
DE
Azure Databricks Engineer
Data Elephant
Calgary, AB
- Contract
We are seeking an experienced Databricks Engineer to join our delivery team on a contract basis in Calgary to design, build, and optimize modern data platforms on Azure Databricks. In this…
Added 1 month ago
H
Mechanical Design Engineer
Hydro-Spade
Brant, ON
- $110,000 to $160,000 CAD / year
- Full-time
Position: Mechanical Design Engineer (SolidWorks)
Added 1 month ago
TC
Performance Test Engineer
Tata Consultancy Services
Mississauga, ON
- $100,000 to $130,000 CAD / year
- Full-time
Performance Test Engineer with strong experience in end-to-end Performance Testing as an Individual Contributor. Responsibilities include test planning, workload modeling, scripting,…

mthree

Ingénieur Support Mainframe / Mainframe Support Engineer

Montreal, QC, Canada

Apply About employer

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Job details

Posting language: English · French
Posted: Sep 22, 2026

Original job description

English section of this bilingual listing.

Want to work in technology at an investment bank?

We are looking for someone to be a part of a dynamic team as a Mainframe Support Engineer for one of our clients to support critical production mainframe applications, maintain operational reliability, troubleshoot incidents, and minimize downtime across our client's technology environment.

About mthree:

Since 2010, mthree has been helping clients solve their business and technological challenges. We are a technology and business consultancy with a global workforce delivering significant business and IT projects in some of the largest financial services organizations worldwide.

Core Services
Consulting and Advisory
Managed Services
Alumni Graduate Program
Alumni Pro Program

We have a global presence and are experts in delivering exceptional quality to our client base, providing consulting services across Risk, Regulation & Compliance; Vendor Products; Application Support; Application Development; Cyber & Information Security; Data Science and DevOps areas.

Our Expert program offers experienced professionals access to top roles in tech, finance, aviation and insurance. Join us to work on groundbreaking technology projects, from international trading platforms to critical applications for leading airlines. We recruit professionals who are eager to fast-track their careers in technology or operations within prestigious global organizations.

Responsibilities:

Monitor and manage production technology through alerts, incident resolution, problem management and user escalations.
Troubleshoot issues across applications, software, hardware and networks.
Respond to production tickets, system alerts and job failures.
Lead incident calls with technology and infrastructure teams.
Collaborate with developers and end users to resolve production issues.
Provide real-time recovery/status updates to senior stakeholders.
Identify process improvements in code and data workflows.
Work within a global follow-the-sun support model across Asia, EMEA and North America.
Participate in an on-call rotation, including possible weekend coverage.

Skills Required:

Background in Computer Science equivalent to a B.Sc. Equivalent practical experience is a reasonable substitute.
3-5 years of production support or similar experience.
UNIX/Linux
Shell, Python, Perl or JavaScript
Relational databases such as DB2, SQL, Sybase or PostgreSQL
Mainframe technologies: COBOL, JCL, VSAM, DB2
Debugging and coding production COBOL/DB2 applications.
Incident management and application troubleshooting.
Strong communication and analytical/problem-solving skills.

At mthree, our values support courageous teammates, needle movers, and learning champions all while striving to support the health and well-being of all employees. We take great pride in celebrating the diversity of each individual who contributes to making mthree the company it is today and will be in the future. We value diversity both within mthree and with our partner companies, and we're proud to provide an environment where all our colleagues can flourish. That means promoting a strong culture of equality but, most importantly, inclusion.

Applicants must be currently authorized to work in Canada on a full-time basis. The Company will not sponsor applicants for work visas.

Read the full bilingual original

**English version below**

Doit être local à Montréal

Vous souhaitez travailler dans le domaine de la technologie au sein d'une banque d'investissement?

Nous recherchons un(e) Ingénieur(e) Support Mainframe pour rejoindre une équipe dynamique chez l'un de nos clients. Ce poste consiste à assurer le support des applications mainframe critiques en production, à garantir la fiabilité opérationnelle des systèmes, à diagnostiquer et résoudre les incidents, ainsi qu'à minimiser les temps d'interruption au sein de l'environnement technologique de notre client.

À propos de mtrois :

Depuis 2010, mtrois aide ses clients à résoudre leurs défis commerciaux et technologiques. Nous sommes une société de conseil en technologie et en affaires avec une main-d'œuvre mondiale qui réalise des projets commerciaux et informatiques significatifs dans certaines des plus grandes organisations de services financiers du monde.

Services principaux

Consulting et Conseil
Services gérés
Programme de diplômés Alumni
Programme Alumni Pro

Nous avons une présence mondiale et sommes experts dans la fourniture d'une qualité exceptionnelle à notre base de clients, offrant des services de conseil dans les domaines du risque, de la réglementation et de la conformité ; Produits des fournisseurs ; Support d'application ; Développement d'application ; Cyber et sécurité de l'information ; Science des données et DevOps.

Notre programme Expert offre aux professionnels expérimentés l'accès à des rôles de premier plan dans la technologie, la finance, l'aviation et l'assurance. Rejoignez-nous pour travailler sur des projets technologiques révolutionnaires, des plateformes de trading internationales aux applications critiques pour les principales compagnies aériennes. Nous recrutons des professionnels désireux de faire progresser rapidement leur carrière dans la technologie ou les opérations au sein d'organisations mondiales prestigieuses.

Responsabilités :

Surveiller et gérer les environnements de production technologiques à l'aide d'alertes, de la résolution d'incidents, de la gestion des problèmes et de l'escalade des demandes utilisateurs.
Diagnostiquer et résoudre les incidents liés aux applications, aux logiciels, au matériel informatique et aux réseaux.
Traiter les tickets de production, les alertes système et les échecs de traitements automatisés (jobs).
Animer et coordonner les cellules de crise (incident calls) avec les équipes technologiques et d'infrastructure.
Collaborer avec les développeurs et les utilisateurs finaux afin de résoudre les incidents de production.
Fournir aux parties prenantes et aux responsables seniors des mises à jour en temps réel sur l'état des systèmes et les actions de rétablissement.
Identifier des opportunités d'amélioration des processus dans les flux de données et les développements applicatifs.
Travailler dans un modèle de support mondial « Follow the Sun » couvrant l'Asie, la région EMEA (Europe, Moyen-Orient et Afrique) et l'Amérique du Nord.
Participer à une rotation d'astreinte, pouvant inclure une couverture le week-end.
Ce poste requiert actuellement une présence sur site d'au moins trois jours par semaine

Compétences requises

Formation en informatique de niveau Licence (Bac+3) ou équivalent. Une expérience pratique significative pourra être considérée en remplacement du diplôme.
3 à 5 ans d'expérience en support de production ou dans un poste similaire.
Bonne maîtrise des environnements UNIX/Linux.
Connaissances en scripting et développement : Shell, Python, Perl ou JavaScript.
Expérience des bases de données relationnelles telles que DB2, SQL, Sybase ou PostgreSQL.
Connaissance des technologies Mainframe : COBOL, JCL, VSAM et DB2.
Expérience du débogage, de la maintenance et du développement d'applications de production COBOL/DB2.
Solide expérience en gestion d'incidents et en diagnostic d'applications.
Excellentes compétences en communication, en analyse et en résolution de problèmes.

Chez mtrois, nos valeurs soutiennent des coéquipiers courageux, des moteurs d'aiguilles et des champions de l'apprentissage tout en s'efforçant de soutenir la santé et le bien-être de tous les employés. Nous sommes très fiers de célébrer la diversité de chaque individu qui contribue à faire de mtrois l'entreprise qu'elle est aujourd'hui et sera à l'avenir. Nous valorisons la diversité tant au sein de mtrois qu'avec nos entreprises partenaires, et nous sommes fiers de fournir un environnement où tous nos collègues peuvent s'épanouir. Cela signifie promouvoir une forte culture d'égalité mais, surtout, d'inclusion.

Les candidats doivent être actuellement autorisés à travailler au Canada à temps plein. L'entreprise ne parrainera pas les candidats pour des visas de travail

**English Translation**

**Must be local to Montreal**

Want to work in technology at an investment bank?

About mthree:

Core Services
Consulting and Advisory
Managed Services
Alumni Graduate Program
Alumni Pro Program

Responsibilities:

Monitor and manage production technology through alerts, incident resolution, problem management and user escalations.
Troubleshoot issues across applications, software, hardware and networks.
Respond to production tickets, system alerts and job failures.
Lead incident calls with technology and infrastructure teams.
Collaborate with developers and end users to resolve production issues.
Provide real-time recovery/status updates to senior stakeholders.
Identify process improvements in code and data workflows.
Work within a global follow-the-sun support model across Asia, EMEA and North America.
Participate in an on-call rotation, including possible weekend coverage.
Current posting specifies at least 3 days per week onsite.

Skills Required:

Background in Computer Science equivalent to a B.Sc. Equivalent practical experience is a reasonable substitute.
3-5 years of production support or similar experience.
UNIX/Linux
Shell, Python, Perl or JavaScript
Relational databases such as DB2, SQL, Sybase or PostgreSQL
Mainframe technologies: COBOL, JCL, VSAM, DB2
Debugging and coding production COBOL/DB2 applications.
Incident management and application troubleshooting.
Strong communication and analytical/problem-solving skills.

Applicants must be currently authorized to work in Canada on a full-time basis. The Company will not sponsor applicants for work visas.

Apply About employer

More about this job

Responsibilities

Monitor and manage critical production mainframe applications while troubleshooting incidents and coordinating with infrastructure teams. Provide real-time status updates to stakeholders and identify opportunities for process improvements in data and application workflows.

Requirements

Requires a bachelor degree in computer science or equivalent practical experience with 3-5 years in production support. Candidates must possess strong knowledge of mainframe technologies, UNIX/Linux environments, and scripting languages.

Skills

Mainframe
COBOL
JCL
VSAM
DB2
UNIX
Linux
Shell
Python
Perl
JavaScript
SQL
Sybase
PostgreSQL
Incident management
Production support

Benefits

Health and well-being support
Professional development opportunities

Visa sponsorship

Not detected in the job text

Keywords

Mainframe
Production support
COBOL
JCL
VSAM
DB2
UNIX
Linux
Shell
Python
Perl
JavaScript
SQL
Sybase
PostgreSQL
Incident management
Troubleshooting
Investment banking
Follow-the-sun
Application support
Data workflows
System alerts
Infrastructure
Debugging
Maintenance

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