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.
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