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Added 8 mins ago
RM
Assistant, Healthy Sexuality Clinics
Regional Municipality of Peel
Mississauga, ON
- Other
Demonstrate a commitment to diversity, equity and inclusion through continuous development, modeling inclusive behaviours, proactively managing bias
Added 8 mins ago
CD
Digital ASIC Design / Verification Engineering Intern/Co-Op
Cadence Design Systems
Toronto, ON
- Full-time
…intern will have full exposure to all aspects of digital ASIC development from RTL design & verification to…
Added 8 mins ago
M
Product Assurance Manager
MDA
Sainte-Anne-de-Bellevue, QC
- Full-time
…you require any accommodations, please indicate this on your application/cover letter and we will work with you to meet your accessibility…
Added 8 mins ago
EC
Commercial Administration Officer
East Coast Credit Union
Port Hood, NS · NS · Dartmouth, NS
- Full-time
Tuition reimbursement, training, and personal development.
Added 8 mins ago
DC
Electrical Engineer
Dillon Consulting Limited
Halifax, NS
- Full-time
…in our communities. We are committed to ongoing professional development and celebrate the unique perspectives that each team member brings to the…
Added 8 mins ago
MT
Specialist, Clients and Markets (Market Recognition)
McCarthy Tétrault LLP
Toronto, ON
- Full-time
Working closely with other practices and industry leaders to prepare (research and write) the development of persuasive Firm, lawyer and client submissions to leading industry ranking and…
Added 8 mins ago
DC
Product Development Engineering Co-op
Danaher Corporation
Vancouver, BC · CAN - Vancouver - Cytiva
- Full-time
The Engineering Co-op for Cytiva Nanomedicine is responsible for supporting the R&D team's scientific, product development, and product support goals including design support, planning and…
Added 8 mins ago
UH
Nurse Practitioner - Neuro-Functional
University Health Network
Toronto, ON
- Full-time
…patient-centered, evidence-informed care while contributing to program development, quality improvement initiatives, research activities, and education for patients, families, and…
Added 8 mins ago
DC
Analytical Development Co-op
Danaher Corporation
Vancouver, BC · CAN - Vancouver - Cytiva
- Full-time
The Analytical Development Co-op will be responsible for routine testing of samples, execution of analytical assays in accordance with approved procedures, maintenance of accurate…
Added 8 mins ago
EG
Systems Engineering Assurance Manager
Egis Group
Toronto, ON
- $150,000 to $190,000 CAD / year
- Full-time
…and provides assurance throughout the system lifecycle from development through verification, validation, testing, and…
Added 8 mins ago
DC
Hardware Engineering Co-op
Danaher Corporation
Concord, ON · CAN - Concord - AB Sciex LP
- Full-time
…complex projects related to Mass Spectrometer product design, development, and testing with a focus on applying engineering fundamentals in a professional…
Added 21 mins ago
CC
Indigenous Research and Development Coordinator
Canadore College
North Bay, ON
- Full-time
Job Title: Indigenous Research and Development Coordinator
Added 21 mins ago
E1
Hiring Now! Teach English Overseas with Full Training, Visa Sponsorship & Career Support
English 1
Campbell River, BC
- Full-time
Free TEFL certification + ongoing professional development
Added 21 mins ago
NR
Manager Strategic Communications
Niagara Region
Thorold, ON
- $121,700 to $143,170 CAD / year
- Full-time
…sensitive or complex communications initiatives. The role leads the development and implementation of internal and external communication strategies that support Regional priorities, foster…
Added 21 mins ago
VS
Meal Assistant
Volunteer Success
Cambridge, ON
- Full-time
Community Development & Outreach Skills Newcomer Support Services Mental Health Addiction Services and Support Food Services and Staffing Cooking & Catering
Added 21 mins ago
OI
Senior Oracle APEX Full-Stack Developer
OXARO Inc.
Ottawa, ON · Greater Ottawa Metropolitan Area
- Contract
Provide full-stack development expertise across the application's user interface and data layers.
Added 21 mins ago
MH
Strategic Sourcing Lead
Manitoba Hydro
Winnipeg, MB
- Full-time
Reporting to the Manager of SCM - Strategic Sourcing, the Strategic Sourcing Lead, is responsible for the development and execution of sourcing strategies and complex procurement activities…
Added 22 mins ago
QP
Leasing Associate, New Developments, Residential
QuadReal Property Group
Vancouver, BC
- Full-time
QuadReal Property Group is a global real estate investment, development and operating company headquartered in Vancouver, British Columbia. Its assets under management are $98.5 billion.…
Added 22 mins ago
I
Customer Service Specialist
ITW
Tecumseh, ON
- Full-time
Product, Systems & Commercial Expertise: Builds strong product, application, and D365 knowledge to efficiently support customers, process orders, troubleshoot issues, and ensure pricing…
Added 22 mins ago
I
Associate Product Manager
ITW
Tecumseh, ON
- Full-time
Assist in defining product specifications and application requirements with engineering teams to support the development of robotic welding and automation solutions.
Added 22 mins ago
Welder
Tigercat | MacDonald Steel
Woodstock, ON
Skills Development and Training Reimbursement: An opportunity to self-identify industry-related learning opportunities available for pre-approval and repayment.
Added 22 mins ago
Industrial Painter
Tigercat | MacDonald Steel
Brant, ON
Remove grease, dirt, paint, or rust in preparation for paint application, using abrasives, solvents, or sandblasters
Added 22 mins ago
Custom Machinist
Tigercat | MacDonald Steel
Cambridge, ON
Skills Development and Training Reimbursement: An opportunity to self-identify industry-related learning opportunities available for pre-approval and repayment.
Added 22 mins ago
DC
Lead Electrical Engineer
Danaher Corporation
Burnaby, BC · CAN - Burnaby - Cytiva
- Full-time
The Lead Electrical Engineer will play a key role in the design, development, and continuous improvement of electrical systems for advanced industrial automation equipment, including…
Added 22 mins ago
DC
Sr. Software Project Manager (Scaled Agile /Device Development)
Danaher Corporation
Guelph, ON · Toronto, ON · Concord, ON · CAN - Concord - AB Sciex LP
- Full-time
Lead platform and application software planning, controlling and coordination of a development team\release train to deliver and meet defined goals using Scaled Agile development practices.

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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