Senior Full-Stack Developer

Job Description

Build the future with us

Are you passionate about software engineering, emerging technologies, and artificial intelligence? Are you eager to contribute to the purpose of a company that aims to help its clients feel confident and secure about their future?

As a Senior Full-Stack Developer, you will play a key role in designing, developing, and delivering high-quality software solutions while helping shape the future of AI-assisted software development.

You will take ownership of complex technical initiatives, collaborate with multidisciplinary teams, and leverage modern technologies and AI-powered tools to improve development efficiency, software quality, and innovation.

This position is a great opportunity to showcase your technical expertise and fully realize your potential within a caring and trustworthy company. Here, people and their development are at the heart of our priorities, fostering an environment that encourages collaboration and innovation.

What you’ll accomplish with us

As a Senior Full-Stack Developer, you’ll be at the core of our mission. Here are the main responsibilities:

• Design, develop, test, and maintain robust, scalable, secure, and production-ready applications using modern full-stack technologies, including React, TypeScript, .NET 8, and C#.
• Take end-to-end ownership of assigned features and code repositories, from technical design and implementation through deployment, monitoring, and production support.
• Leverage AI-powered development tools, including GitHub Copilot and coding agents, to accelerate code exploration, implementation, refactoring, debugging, automated testing, and documentation while maintaining rigorous quality standards.
• Collaborate with senior engineers to establish secure, repeatable, and effective AI-assisted development practices, reusable workflows, and appropriate validation and review processes.
• Participate in code reviews, establish development standards, and improve engineering efficiency through high-quality technical feedback and streamlined pull-request workflows.
• Continuously improve application architecture, repository health, automated test coverage, code quality, and security by addressing technical debt, vulnerabilities, and SonarQube findings.
• Work closely with product, architecture, quality assurance, DevOps, platform, and data teams to deliver innovative solutions within an agile development environment.
• Contribute to incident investigations, root-cause analysis, application observability, and sustainable corrective actions to ensure reliable production systems.
• Share technical knowledge through demonstrations, pair programming, mentoring, and documentation to encourage the adoption of AI-assisted engineering practices across the team.
• Drive measurable improvements in software delivery, including shorter development cycles, fewer recurring defects, stronger security, and greater engineering efficiency without compromising production quality.

What could accelerate your success in this role

We’re looking for someone who:

• Has 7+ years of professional software development experience, including significant ownership of production systems and strong full-stack expertise in React, TypeScript, .NET 8, and C#.
• Has hands-on experience with AI-assisted development tools, such as GitHub Copilot and coding agents, across implementation, refactoring, testing, debugging, and documentation, including prompt and context management.
• Demonstrates strong technical judgment, particularly in evaluating AI-generated code, identifying security risks, and ensuring appropriate validation and review practices.
• Has solid knowledge of modern software architecture and engineering practices, including API design (REST, GraphQL), distributed systems, BFF, microservices, automated testing, CI/CD, observability, secure coding, and cloud-native development.
• Is proficient with modern development technologies and tools, including PostgreSQL, GitHub, SonarQube, Playwright, performance testing, and Google Cloud Platform (Cloud Run, Pub/Sub, Cloud SQL).
• Understands software quality and security best practices, including repository ownership, pull-request workflows, vulnerability remediation, Okta SSO, least-privilege access, secrets management, auditability, and secure SDLC.
• Combines strong problem-solving skills with autonomy and collaboration, demonstrating sound technical decision-making, clear communication, accountability, and a willingness to share knowledge and support teammates.
• Has an advanced level of English proficiency, as the role requires daily verbal and written communication with English-speaking partners, teams, and stakeholders across Canada and internationally.

Additional assets that could set you apart:

• Experience in financial services, wealth management, or another regulated industry.
• Experience introducing or scaling AI-assisted engineering practices within a development team.
• Experience with Google Cloud production operations, Elasticsearch, K6, or infrastructure-as-code.

Why you’ll love working with us

• A work environment where learning and development merge with a collective pursuit of excellence;
• AI is in everyone's hands, empowering you to increase your personal effectiveness while supporting the organization's growth;
• A healthy, safe, fair, and inclusive environment where potential can be freely expressed and developed;
• The opportunity to work in a hybrid environment, supported by flexibility and access to inspiring and innovative workspaces.

Competitive Benefits

• Flexible group insurance plans
• Competitive retirement savings plan
• Employee share purchase plan
• Vacation program, wellness days, and personal development days
• Telemedicine services
• Employee and Family Assistance Program (EFAP)
• Ergonomic furniture program
• Performance bonus
• Discounts on iA products
• And much more!

Apply now and get ahead of your career, where your talent really belongs!

Still unsure about applying?

At iA, we believe in potential and value diverse experiences. If this role inspires you, go ahead and apply. Your place might be with us, and we want to get to know you!

*For positions posted in Ontario and British Columbia:

The typical hiring range for this position is between 110 000$ and 130 000$ CAD per year; the base salary offered may vary depending on knowledge, skills, years of experience, and internal equity related to the role.

Location(s)

Montreal / 1981 McGill College Avenue

Other Possible Location(s)

Toronto / 26 Wellington Street East

Company

iA Financial Group

Posting End Date

2026-11-28

Company Overview

iA Financial Group* is the strength of a company with a human side, with its over 8,000 employees. Together, we have earned the trust of our more than four million clients and 25,000 advisors who have chosen us for their insurance, savings, and wealth management.

With over $200 billion in assets and half a billion invested in technological innovation, we’re a key player in the financial services industry in Canada and the United States. The secret to our success? Investing in you, one person at a time. Because, for over 125 years, we have believed that it’s by supporting our employees and surrounding ourselves with the most reputable leaders in the industry, we will continue to innovate.

At iA, we’re invested in you.

* iA Financial group includes the following entities: iA Services financiers, iA assurance auto et habitation, iA Gestion privée de patrimoine, PPI Management, Investia, iA Gestion de placements, Prysm, iA Clarington, Michel Rhéaume et associés, Garanties Nationales, WGI Manufacturing, WGI Service Plan Division, Lubrico, iA Financement auto

Our Commitment to Diversity and Inclusion

At iA Financial Group, we support and celebrate diversity. We strive to provide a workplace that is recognized as inclusive for all, regardless of ethnic origin, nationality, language, religious beliefs, gender, sexual orientation, age, marital status, family situation, or physical or mental disability.

Please note that if you need help or assistance to make the recruitment process more accessible for you, please Contact us here. Someone from our team will be happy to assist you with your needs.

Technology and Artificial Intelligence in Recruitment

To optimize and support our recruitment process, iA Financial Group may use certain technological tools, including artificial intelligence. These tools support the work of our recruiters but do not replace their judgment. All hiring decisions continue to be made by authorized individuals within the organization. For more information, please refer to our Privacy Notice.