.Net Developer

This role is hybrid and requires you to be at our downtown Toronto and/or Client office (81 Bay Street) at a minimum 1 day per week subject to change at any time.

We are seeking a highly skilled and collaborative Senior .NET Developer to join our growing consulting team supporting financial services clients. In this role, you will contribute to the development of regulatory and AML (Anti-Money Laundering) products, working in Agile teams to design, build, and deliver scalable, high-quality solutions.

You will play a key role in mentoring team members, improving development practices, and collaborating across technical and business teams to solve complex challenges. We welcome individuals from diverse backgrounds who are passionate about building reliable software and continuously learning.

Your future duties and responsibilities

Software Development & Design

Design, develop, and maintain scalable, high-performance applications using .NET technologies

Deliver maintainable, reusable, and testable code in a fast-paced financial environment

Build full-stack solutions across UI, middle-tier services, and databases

Develop APIs and services using ASP.NET, .NET Core, MVC, and Web APIs

System Analysis & Problem Solving

Analyze, troubleshoot, and resolve complex technical issues and defects

Identify performance bottlenecks and implement optimization solutions

Proactively monitor system stability and improve application reliability

Collaboration & Stakeholder Engagement

Work closely with business units, product teams, and stakeholders to understand requirements

Translate business needs into technical solutions and prototypes

Act as a key point of contact for development-related inquiries

Automation, CI/CD & DevOps

Develop scripts and tools to support automated build, test, and deployment pipelines

Integrate solutions into CI/CD workflows

Apply test-driven development (TDD) and automate testing processes

Mentorship & Team Leadership

Mentor and guide junior developers to support their growth and technical excellence

Foster a collaborative, inclusive, and high-performing team culture

Encourage knowledge sharing, feedback, and continuous improvement

Quality & Best Practices

Ensure adherence to secure coding standards and best practices

Contribute to improvements in development processes and team efficiency

Advocate for quality throughout the software development lifecycle (SDLC)

Database & Data Management

Design and maintain relational database schemas

Write optimized SQL queries to support application functionality

Required qualifications to be successful in this role

Bachelor’s degree in Computer Science, Engineering, Mathematics, Statistics, or a related field (advanced degree is an asset)

8–10 years of software development experience in enterprise environments

Experience delivering solutions across the full SDLC in Agile environments

Technical Skills

Strong proficiency in:

o .NET Framework (4.5+) and .NET Core

o C# and ASP.NET technologies

o SQL and relational database design

o HTML, CSS, JavaScript for frontend development

Experience with:

o Service-Oriented Architecture (SOA)

o RESTful APIs and Web Services

o Azure cloud platforms

Development Practices & Tools

Strong understanding of Agile methodologies and SDLC

Experience with CI/CD tools and automation pipelines

Proficiency with Git version control and source control workflows

Hands-on experience with:

o Test-driven development (TDD)

o Build and deployment automation

o Performance tuning and optimization

Professional Skills

Strong communication skills and ability to collaborate across teams and seniority levels

Ability to clearly explain technical concepts to both technical and non-technical audiences

Demonstrated problem-solving skills and attention to detail

Commitment to continuous learning and adapting to new technologies

Preferred Qualifications

Experience in financial services or capital markets

Knowledge of regulatory or AML systems

Exposure to cloud-native development (Azure)

Familiarity with Java-based systems

Certifications such as CFA or related financial credentials

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 $95,000–$145,000. This role is an existing vacancy.

#LI-GS!

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.

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.