Senior Application Architect (10+ years) to design and oversee Azure-based application solutions, including front-end, back-end, APIs, and hybrid/cloud-nat
S.i. Systems
Toronto, ON-
Number of positions available : 1
- Salary To be discussed
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Contract job
- Published on February 25th, 2026
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Starting date : 1 position to fill as soon as possible
Description
Our valued client is seeking a Senior Application Architect (10+ years) to design and oversee Azure-based application solutions, including front-end, back-end, APIs, and hybrid/cloud-native architectures.
The role involves architecting scalable front-end and back-end solutions, designing secure APIs, and supporting hybrid and cloud-native deployments. The Architect will collaborate closely with project managers, developers, and technical stakeholders in a small, agile team environment with shifting priorities. The role requires strong communication skills, the ability to conduct proof-of-concept (PoC) work with evolving requirements, and leadership in defining architectural standards and modernization strategies.
The successful candidate will contribute to IT modernization initiatives, including legacy system transformation, cloud-native architecture design, and deployment strategies that ensure scalability, security, and cost optimization across Azure platform services.
Must Haves:
- Experience designing applications in Microsoft Azure
- Experience with React or Next.js (UI architecture)
- Experience designing APIs using .NET Core
- Experience with cloud-native architectures (microservices, containers, serverless, PaaS)
- Experience designing SSO and MFA solutions (Azure Entra ID / AD B2C/B2B)
- Experience with legacy modernization and hybrid cloud architectures
Tasks:
- Lead architecture design for Azure-hosted applications
- Develop reference architectures and technical standards
- Define cloud cost management strategies
- Architect UI (React/Next.js) and API (.NET Core) solutions
- Assess and modernize legacy systems (including Oracle-APEX)
- Develop scalable deployment strategies with load balancing
- Design authentication frameworks (SSO, MFA)
- Develop Azure-based proof-of-concept solutions
- Lead code refactoring and re-architecture initiatives
AI may be used in evaluating candidates.
This posting is for an existing vacancy.
Requirements
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