Job descriptionSenior Integration Engineer – Interac API & Azure We are seeking a highly skilled Lead/Senior Integration Engineer to support the modernization of Interac e-Transfer capabilities and help enable readiness for Canada’s Real-Time Rail (RTR) ecosystem. This role is ideal for experienced integration professionals with strong expertise in API development, Azure integration services, microservices architecture, and .NET/C# development. Depending on experience and leadership capability, candidates may be considered for either a Senior Engineer or Lead-level role. Key Responsibilities - Design, develop, and support modern integration services for Interac e-Transfer modernization initiatives. - Analyze existing payment integrations, API specifications, and end-to-end transaction flows across banking systems. - Develop scalable microservices and APIs using .NET/C#, Azure Functions, and Azure API Management (APIM). - Create and maintain low-level design documentation including API contracts, orchestration flows, interface specifications, and data mappings. - Implement resilient integration patterns including retry mechanisms, idempotency controls, asynchronous messaging, and robust error handling. - Build secure APIs using OAuth2, OIDC, mTLS, and enterprise security best practices. - Support CI/CD implementation, automated deployments, testing, monitoring, and production readiness activities. - Collaborate with Solution Architecture, Security, Compliance, business teams, and external partners to ensure successful end-to-end integration delivery. - Provide technical guidance, mentoring, and design support to developers and project teams where applicable. - Contribute to observability and monitoring practices using Azure Monitor, Application Insights, structured logging, and distributed tracing. Required Skills & Experience - 8+ years of experience in API development and enterprise system integration. - Strong hands-on experience with .NET/C# and RESTful API development. - Experience with Azure integration technologies including: - Azure Functions - Azure API Management (APIM) - Azure-based microservices architecture - Strong understanding of: - API integration patterns - Distributed systems - Microservices architecture - CI/CD pipelines - Secure API development - Experience implementing resiliency and observability patterns in enterprise systems. - Strong communication and stakeholder collaboration skills. Preferred Experience - Experience with Interac e-Transfer integrations. - Knowledge of Real-Time Rail (RTR) payment modernization initiatives. - Experience with ISO 20022 / ISO 8583 messaging standards. - Banking, fintech, or payment domain experience. - Experience leading developers or mentoring engineering teams.