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Added 2 mins ago
CS
Data Engineer
Curis Solutions
Engineer, BC
- Full-time
…firm specializing in creating long term solutions for health systems and physician practice groups to harness the vast amount of data required to properly manage their businesses in an…
Added 2 mins ago
PA
Spray Operator
PERSOL APAC
NT · Northwest Territories, Canada
- Full-time
A clear commitment and understanding of Quality and Health, Safety and Environment systems
Added 4 mins ago
GF
general farm worker - harvesting
Gill Farms
Oliver, BC
- From $18.25 CAD / hour
- Full-time
- On-site
Added 7 mins ago
VI
online marketing manager
Vestra Inet
Concord, ON
- From $65,000 CAD / year
- Full-time
- On-site
…agency environment * Experience with CMS platforms and CRM systems * Knowledge of SEO, Google Analytics, Google Ads, or other digital marketing tools Apply Today Submit your resume along…
Added 13 mins ago
AA
Architectural Technologist
ADA Architecture Inc.
Saskatoon, SK
- From $55,000 CAD / year
- Full-time
- On-site
…and stakeholders * Conducting research on existing buildings, systems, products, and materials * Assisting with construction cost estimates and project documentation * Participating in…
Added 17 mins ago
P
Spray Operator
Programmed
NT · Northwest Territories, Canada
- Full-time
A clear commitment and understanding of Quality and Health, Safety and Environment systems
Added 17 mins ago
TR
Heavy Duty Mechanic Journeyperson
Teck Resources Limited
BC · British Columbia, Canada
- Full-time
Disassemble, inspect, and rebuild key systems including engines, transmissions, and cooling components
Added 17 mins ago
OC
Medical Scientific Liaison, Dermatology – Western Canada (Vancouver and Alberta, Canada) | Agent.e de liaison médical.e et scientifique, dermatologie – Ouest canadien (Vancouver et Alberta, Canada)
Organon Canada
Kirkland, QC
- Full-time
…back information to internal stakeholders via organization systems thoroughly strategically and…
Added 17 mins ago
MB
Mon Kitchen Supervisor Hourly
Montanas BBQ & Bar
Fort McMurray, AB
- Full-time
Added 17 mins ago
1E
HVAC/R Technician
1Click Energy Solutions
Corner Brook, NL
- Full-time
…maintaining, and servicing heat-pump based heating and cooling systems in residential settings, while ensuring compliance with provincial safety regulations and manufacturer…
Added 17 mins ago
1E
Journeyman Electrician
1Click Energy Solutions
Corner Brook, NL
- Full-time
Install, maintain, and repair residential electrical systems with a commitment to Excellence
Added 17 mins ago
V|
Field Engineering Co-op
Veolia | North America
AB · Edmonton, AB
- Internship
…treatment. You will gain exposure supporting water treatment systems and assist the organization in achieving its annual goals and objectives as an active…
Added 17 mins ago
FH
Course Materials Mgr - Calgary, Alberta
Follett Higher Education
Burlington, ON
- Full-time
Demonstrates strong knowledge of Follett systems and strategies (Programs, Academic Tools, System Integrations, etc.) and assigned local and campus-specific student and performance…
Added 17 mins ago
EG
Route Supervisor
Emterra Group
Barrie, ON
- Full-time
Ensuring company policy, systems, and industry related training is delivered to all drivers asneeded
Added 17 mins ago
TT
Digital Controls Technical Specialist
Trane Technologies
Montreal, QC
- Full-time
…for IoT devices, HVAC controls, lighting, and refrigeration…
Added 17 mins ago
V|
Field Engineering Co-op
Veolia | North America
Oakville, ON
- Internship
…treatment. You will gain exposure supporting water treatment systems and assist the organization in achieving its annual goals and objectives as an active…
Added 17 mins ago
FH
Program Coordinator, Physician Quality Improvement (PQI)
Fraser Health Authority
Surrey, BC
- $32.43 to $46.62 CAD / hour
- Temporary
Are you passionate about improving healthcare systems, leading impactful projects, and supporting meaningful change? Fraser Health is seeking a collaborative and results-driven Project…
Added 17 mins ago
EC
Research Analyst (Contract)
ECO Canada
Calgary, AB
- Contract
Ability to develop and maintain databases and data management systems.
Added 17 mins ago
L
Software Engineer - Product Lifecycle Information Management
lululemon
Vancouver, BC
- Full-time
…to design, build, & maintain technology products, devices, systems, and solutions that provide amazing customer…
Added 19 mins ago
VB
Industrial Electrician TQ
Vale Base Metals
Thompson, MB
- $28 to $54 CAD / hour
- Full-time
- On-site
…maintaining medium and high voltage electrical equipment any systems. Your experience and skills will contribute to scheduled and emergency repairs, installations, inspections, and…
Added 21 mins ago
CO
Wastewater Treatment Operator II
City of Kelowna
Kelowna, BC
- From $40.17 CAD / hour
- Full-time
- On-site
…processes and wastewater (including storm water) collection systems in compliance with all regulatory and safety regulations. You will troubleshoot equipment and perform preventative and…
Added 27 mins ago
CA
Construction Administrator / CA Lead
Coles Associates Ltd
Charlottetown, PE
- Full-time
Added 29 mins ago
GI
business analyst - computer systems
G9SIGMA INC.
Toronto, ON
- From $46 CAD / hour
- Full-time
- On-site
Design, develop and implement information systems business solutions
Added 31 mins ago
VC
Registered Nurse (RN) Med/Surg - Surgical Short Stay
Vancouver Coastal Health
Vancouver, BC
- $41.42 to $55.91 CAD / hour
- Other
Demonstrated ability to document client care on appropriate systems/forms in accordance with organizational and unit standards in a timely and accurate manner.
Added 37 mins ago
SM
Intermediate IT/VoIP Support Technician
Starport Managed Services Inc.
Charlottetown, PE
- Full-time
· Working knowledge of ticket systems (CRM), remote management tools (RMM) and screensharing tools

CGI

Développeur(se) C# / C++ – Expert(e) systèmes temps réel

Montreal, QC, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Nov 5, 2026
Posting language: English
Posted: Oct 6, 2026

Original job description

Take high-performance and low-latency development to the next level with CGI

Are you an experienced C++ / C# developer who thrives on solving complex challenges involving real-time systems, low latency, multithreading, parallel computing and distributed architectures?

CGI is looking for a C# / C++ Developer – Real-Time Systems Expert to help design, optimize and modernize mission-critical technology platforms supporting pricing, risk calculation and financial markets activities within a major banking environment.

You will work in a technology ecosystem where performance, scalability, resilience and speed matter. These platforms process significant volumes of data and transactions every day while supporting a broad range of users, including Front Office teams, quantitative risk analysts and risk managers.

Your challenge: build and optimize systems capable of processing increasing volumes of transactions and calculations while meeting demanding performance and regulatory requirements.

Work model: Hybrid – 3 days in the office after the first 2 months

Location: Montréal

Your future duties and responsibilities

As a senior C++ / C# expert, you will play a key role in the evolution and modernization of critical real-time and distributed computing platforms.

Your responsibilities will include:

Design, develop and enhance high-performance services using C++, C# and .NET Core.
Develop and optimize real-time and low-latency C++ components.
Design and optimize parallel algorithms for multicore architectures.
Improve the performance and scalability of multithreaded applications.
Contribute to the architecture and evolution of high-performance distributed systems.
Perform profiling, monitoring, troubleshooting and performance optimization.
Investigate complex performance issues and provide production support for mission-critical systems.
Help redesign and modernize the real-time infrastructure and grid-oriented components.
Contribute to the migration and evolution of computing workloads toward ArmoniK and cloud-based architectures.
Participate in cloud bursting, cloud-native and Kubernetes initiatives.
Collaborate closely with Front Office teams, quantitative analysts, risk teams and technology specialists.
Contribute to the technology roadmap and architectural governance.
Promote software engineering best practices related to code quality, performance, observability, scalability and resilience.

Required Qualifications To Be Successful In This Role

What we’re looking for

Must-have skills

Strong hands-on experience with C++ and C# / .NET Core development.
Proven expertise in real-time and low-latency C++ software development.
Strong knowledge of multithreading, concurrency and parallel programming.
Experience designing and optimizing parallel algorithms for multicore architectures.
Strong experience developing high-performance distributed systems.
Proven expertise in profiling, monitoring and performance optimization.
Experience supporting and troubleshooting complex, production-critical systems.
Strong software design and development practices.
Ability to work independently and take ownership of complex technical challenges.
Excellent communication and collaboration skills.
Strong interest in emerging technologies and modern software engineering practices.

Previous experience with electronic markets, pricing, market making, trading platforms or capital markets technology is highly desirable.

Why join CGI?

This opportunity is ideal for someone who wants to go beyond traditional application development and work on technology where every millisecond matters.

You will tackle real-world challenges involving low latency, parallel computing, high-performance C++, distributed processing and massive scalability, while contributing to systems that directly support critical financial markets activities.

You will also play a role in a major technology transformation combining C++, .NET, distributed computing, Kubernetes and cloud technologies, while collaborating with technology, quantitative and financial markets specialists.

If you enjoy understanding where every millisecond goes and pushing systems to their performance limits, this could be your next challenge at CGI.

Work model: Hybrid – 3 days in the office after the first 2 months

Location: Montréal

Ability to communicate in English, both orally and in writing, is a requirement as the person in this position will need to collaborate regularly with colleagues and partners in Canada and the United States.

CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level, geographic market, experience and training, and licenses and certifications. Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $60,000–$115,000. This role is an existing vacancy.

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

At CGI, we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

To learn more about accessibility at CGI, contact us via email. Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries.

Come join our team - one of the largest IT and business consulting services firms in the world.

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More about this job

Responsibilities

Design, develop, and optimize high-performance C++ and C#/.NET services, real-time components, parallel algorithms, and distributed systems. Troubleshoot and support mission-critical platforms while contributing to modernization, cloud migration, architectural governance, and engineering best practices.

Requirements

Requires strong hands-on experience with C++ and C#/.NET Core, real-time and low-latency development, multithreading, parallel programming, and high-performance distributed systems. Candidates should also have expertise in profiling and production troubleshooting, strong software engineering and collaboration skills, and the ability to own complex technical challenges; capital markets experience is highly desirable.

Skills

C++
C#
.NET Core
Real-Time Systems
Low-Latency Development
Multithreading
Concurrency
Parallel Programming
Parallel Algorithms
Distributed Systems
Performance Profiling
Performance Optimization
Production Support
Kubernetes
Cloud Computing
Software Architecture

Visa sponsorship

Not detected in the job text

Keywords

C++
C#
.NET Core
Real-Time Systems
Low Latency
Multithreading
Concurrency
Parallel Computing
Parallel Algorithms
Multicore Architectures
Distributed Systems
Performance Profiling
Monitoring
Performance Optimization
Production Support
ArmoniK
Cloud Computing
Cloud Bursting
Cloud-Native Architecture
Kubernetes
Financial Markets
Capital Markets
Pricing
Risk Calculation
Electronic Markets
Trading Platforms
Market Making
Front Office
Observability
Scalability

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