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Added 12 mins ago
R
Product Marketing Manager
Rewind
Remote, Canada
- $116,000 to $140,000 CAD / year
- Full-time
- Remote
Strong quantitative analytical skills, and clear written and spoken communication in positioning, messaging and storytelling.
Added 12 mins ago
Senior Actuary Analyst
Gore Mutual Insurance
Toronto, ON · Cambridge, ON
A strong academic foundation: An undergraduate degree in Actuarial Science, Mathematics, Statistics, or a related quantitative field.
Added 26 mins ago
SC
Design Director
Sony Computer Entertainment France SA
Montreal, QC
- Full-time
…capable of inventing fresh ideas and grounding them into logical, quantitative…
Added 26 mins ago
SC
Design Director
Sony Computer Entertainment France SA
Montreal, QC
- Full-time
Added 26 mins ago
UF
Geraldton PT Community Coordinator
United for Literacy formerly Frontier College
Geraldton, ON
- Part-time
· Implement and evaluate programs by collecting qualitative and quantitative data from learners, teachers, families, and community partners.
Added 26 mins ago
UF
Longlac PT Community Coordinator
United for Literacy formerly Frontier College
Greenstone, ON · Longlac, ON
- Part-time
· Implement and evaluate programs by collecting qualitative and quantitative data from learners, teachers, families, and community partners.
Added 57 mins ago
FC
Analyst, Finance and Treasury (18-month contrat)
Fiera Capital
Toronto, ON
- Full-time
Strong analytical, quantitative, and problem-solving skills, with attention to accuracy and detail.
Added 1 hour ago
M
Senior Property Accountant - Multi-Residential
Morguard
Mississauga, ON
- Full-time
Added 2 hours ago
XT
Quantitative Researcher
XFactor Talent
Toronto, ON
- Full-time
We are seeking an experienced Quantitative Researcher to support customer, product, and
Added 4 hours ago
M
Senior Risk Manager - Subways
Mace
Toronto, ON
- Full-time
Leads and directs the delivery of Project/Programme Quantitative Risk Analysis (cost and time).
Added 5 hours ago
SS
Financial Risk Audit Manager, Vice President
State Street
Toronto, ON
- Full-time
Strong analytical, quantitative, and conceptual thinking skills; able to navigate complexity and prioritize effectively.
Added 5 hours ago
SS
Warehouse Supervisor/ Superviseur d’entrepôt
Simpson Strong-Tie
Châteauguay, QC · SST - Canada QC
- Full-time
Experience in quantitative analysis by using logic and reasoning to identify the strengths and weaknesses of solution options to problems required.
Added 5 hours ago
SG
OTC Derivatives Analyst
S&P Global
Toronto, ON
- Full-time
Added 5 hours ago
CO
Intern, Data Scientist - Summer 2027
Capital One
Toronto, ON
- Full-time
Pursuing a Bachelor's degree in Mathematics, Computer Science, Engineering, or another quantitative discipline with a strong programming background.
Added 5 hours ago
CO
Director, Data Science
Capital One
Toronto, ON
- Full-time
A Bachelor's Degree in a quantitative field (Statistics, Economics, Operations Research, Analytics, Mathematics, Computer Science, or a related quantitative field) plus 9 years of…
Added 6 hours ago
R
Director, Counterparty Credit Risk Models, Global Risk Analytics
RBC
Toronto, ON
- Full-time
Masters in Financial Engineering, or a degree in another quantitative subject such as physics, statistics, mathematics or mathematical finance and/or a relevant professional qualification,…
Added 6 hours ago
R
Senior Director, ALM Research & Analytics
RBC
Toronto, ON
- Full-time
Lead RBC Corporate Treasury's quantitative ALM methodology development, modelling, research and analytics, focusing on interest rate risk measurement and management. Lead development of…
Added 7 hours ago
AH
Senior Epidemiologist – Precision Analytics, Cancer Care Alberta
Alberta Health Services
AB · Greater Edmonton Metropolitan Area
- Temporary
Completion of a PhD in Epidemiology, Biostatistics, Health Services Research, Public Health, or a related quantitative discipline. Equivalent combinations of education and experience will…
Added 7 hours ago
P
Digital Operations, Senior Associate
PwC
Toronto, ON · Ottawa, ON
- Full-time
Apply quantitative techniques with appropriate rigor based on guidance from senior team members.
Added 8 hours ago
NS
C++ / C# .Net Core Developer – Pricing & Risk Services (Real-Time, Grid, Cloud)
Novaren Solutions
Montreal, QC
- Full-time
Novaren Solutions is looking for a senior C++ / C# developer on behalf of a leading international corporate and investment bank, to join its Capital Markets technology division in Montréal.
Added 9 hours ago
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Postdoctoral Fellow
RI-MUHC | Research Institute of the MUHC | #rimuhc
Montreal, QC
- Full-time
Experience with bioinformatics, biostatistics, computational biology or quantitative data analysis.
Added 10 hours ago
NN
Pricing Manager
Novo Nordisk
Mississauga, ON
- Full-time
…post-launch compliance and payer negotiations, you will own the quantitative backbone of our access decisions – building models, validating business cases, and ensuring every scenario is…
Added 10 hours ago
A
Senior Scientist - Sensors
Anasens
Montreal, QC
- Full-time
…médicale qui développe une plateforme innovante pour la détection quantitative de drogues à partir de matrices biologiques comme la salive et le sang. Notre technologie combine biocapteurs…
Added 11 hours ago
BP
Machine Learning Intern – Summer 2027
BNP Paribas
Montreal, QC
- Internship
Currently enrolled in a Master’s or PhD program at a Canadian university in a quantitative field such as AI/ML, data science, computer science, engineering, operations research, statistics,…
Added 11 hours ago
C
Développeur(se) C# / C++ – Expert(e) systèmes temps réel
CGI
Montreal, QC
- Full-time
Are you an experienced C++ / C# developer who thrives on solving complex challenges involving real-time systems, low latency, multithreading, parallel computing and distributed…

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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