Senior Full Stack Java Developer Jobs in London, ON

Putting people first, every day

BDO is a firm built on a foundation of positive relationships with our people and our clients. Each day, our professionals provide exceptional service, helping clients with advice and insight they can trust. In turn, we offer an award-winning environment that fosters apeople-first culturewith a high priority on your personal and professional growth.

Your Opportunity

The Senior Developer designs, builds, and maintains scalable, secure enterprise solutions on the Microsoft Azure platform, with a strong emphasis on system integration, performance, and security. This is a replacement role and leads hands-on development across the full software lifecycle, promoting best practices, and works closely with cross-functional teams to translate business requirements into effective technical solutions. The ideal candidate brings deep expertise in Azure services, cloudnative development, APIs, and integration patterns, along with strong problemsolving skills and the ability to operate independently in a fastpaced environment. As a key technical contributor, this role plays a critical part in ensuring the reliability and longterm success of the firm's cloud platforms and digital initiatives.

To be successful, you will:

• Design, develop, and maintain secure, scalable, and high-performing cloud-based applications using Microsoft Azure services (e.g., Azure App Services, Azure Functions, Azure Kubernetes Service, Azure SQL, Azure Storage)

• Lead the implementation of cloud-based solutions using APIs, messaging, and event-driven architectures, for integrations ensuring reliable data exchange across internal and external platforms.

• Collaborate with cross-functional teams including product management, DevOps, QA, and business teams to translate functional and technical requirements into robust cloud solutions.

• Drive technical decisions across the full software development lifecycle, including architecture, development, testing, deployment, and ongoing support.

• Implement and enforce best practices for cloud security, performance optimization, scalability, and cost management within Azure environments.

• Develop and maintain CI/CD pipelines using Azure DevOps using Infrastructure as code (IaC), GitHub Actions, or similar tools to support automated builds, testing, and deployments.

• Troubleshoot, diagnose, and resolve complex application, integration, and infrastructure issues across development and production environments. Mentor and support junior developers through code reviews, technical guidance, and knowledge sharing to elevate overall team capability.

• Create and maintain technical documentation, including solution designs, integration specifications, and operational procedures.

• Stay current with emerging Azure services, cloud technologies, and integration patterns, recommending improvements that support the firm's technology strategy.

• Establish governance processes and standards for business architecture practices.

• Promote collaboration between technical and non-technical teams to ensure shared understanding of business goals.

How do we define success for your role?

• You demonstrate BDO's core values through all aspect of your work: Integrity, Respect andCollaboration

• You understand the organization's structure, priorities, and people practices

• Internal stakeholders describe you as positive, professional, and consistent in delivering high-quality work

• You identify, recommend, and are focused on effective service delivery to your clients

• You share in an inclusive and engaging work environment that develops, retains & attractstalent

• You actively participate in the adoption of digital tools and strategies to drive an innovativeworkplace

• You grow your expertise through learning and professional development

Your Experience and Education:

• University Degree/Diploma in Computer Science, Information Technology, or a related discipline.

• 5+ years of experience in enterprise IT, with at least 1 year in technical leadership role.

• Strong experience with Microsoft Azure Integration Services - API Management, Service Bus, Event Grid, Functions, Logic Apps etc.

• Proven expertise in enterprise integration patterns: request/response, pub/sub, orchestration vs. choreography, batch, saga.

• Strong expertise in C# and modern .NET versions, with hands-on experience using Visual Studio 2019/2022+ and VS Code.

• Strong knowledge of APIs (REST, SOAP, OData, GraphQL), JSON, XML, and secure communication protocols.

• Strong understanding of cloud security, RBAC, encryption in transit and at rest.

• Excellent cross-functional collaboration and communication skills, with the ability to work effectively with development, operations, and architecture teams.

• Demonstrated ability to establish and document standards and best practices for API management and integration.

• Certifications in Microsoft Azure or equivalent cloud platforms are an asset.

• Experience with AI agent frameworks and the Model Context Protocol (MCP) for enabling secure, context-aware automation and integration is an asset.

• Experience with Workday, Dynamics 365, or ServiceNow integrations is an asset.

The expected range of compensation for this role is $77,000 - $117,000 annually.

Why BDO?
Our people-first approach to talent has earned us a spot among Canada's Top 100 Employers for 2026. This recognition is a milestone we're thrilled to add to our collection of awards for both experienced and student talent experiences.

Our firm is committed to providing an environment where you can be successful in the following ways:

• We enable you to engage with how we change and evolve, being a key contributor to the success and growth of BDO in Canada.

• We help you become a better professional within our services, industries, and markets with extensive opportunities for learning and development.

• We support your achievement of personal goals outside of the office and making an impact on your community.

Giving back adds up: Where company meets community. BDO is actively involved in our communities by supporting local charity initiatives. We support staff with local and national events where you will be given the opportunity to contribute to your community.

Total rewards that matter: We pay for performance with competitive total cash compensation that recognizes and rewards your contribution. We provide flexible benefits from day one, and a market leading personal time off policy. We are committed to supporting your overall wellness beyond working hours and provide reimbursement for wellness initiatives that fit your lifestyle.

Everyone counts: We believe every employee should have the opportunity to participate and succeed. Through leadership by our Diversity, Equity and Inclusion Leader, we are committed to a workplace culture of respect, inclusion, and diversity. We recognize and celebrate the valuable differences among each of us, including race, religious beliefs, physical or mental disabilities, age, place of origin, marital status, family status, gender or gender identity and sexual orientation. If you require accommodation to complete the application process, please contact us.

Flexibility: All BDO personnel are expected to spend some of their time working in the office, at the client site, and virtually unless accommodations or alternative work arrangements are in place.

Our model is a blended approach designed to support the flexible needs of our people, the firm and our clients. It's about creating work experiences that meet everyone's needs and providing flexibility to adjust when, where and how we work to meet the expectations of our role.

Code of Conduct: Our Code of Conduct sets clear standards for how we conduct business. It reflects our shared values and commitments and includes guiding principles to help us make ethical decisions and maintain trust with each other, our clients, and the public.

BDO may use artificial intelligence enabled tools to support certain aspects of the recruitment process. While these tools assist our teams, our use of AI does not replace human decision making, and all employment-related outcomes are made by BDO personnel.

More information on BDO Canada's Privacy Policy can be found here: Privacy Policy | BDO Canada

Ready to make your mark at BDO? Click "Apply now" to send your up-to-date resume to one of our Talent Acquisition Specialists.

To explore other opportunities at BDO, check out ourcareers page.