Senior Technology Architect

We are seeking an experienced Senior Technology Architect to provide technical leadership, architectural guidance, and end-to-end solution design for complex enterprise cloud applications. In this role, you will be responsible for creating, validating, and evolving current-state and target-state solution architecture artifacts across business, information, application, technology, and security domains. Leveraging industry architecture frameworks (TOGAF, Zachman) and modern web and cloud technologies (Microsoft Azure, Node.js, React, NoSQL), you will collaborate closely with development leads, subject matter experts, and governance committees to align implementation approaches, validate source code and CI/CD pipelines, mitigate architectural risks, and guide projects through enterprise architecture governance checkpoints.

Location: Toronto, ON (Fully Onsite – 5 days/week required)

Duration: 7-month contract

Advantages
Enterprise Architecture Ownership: Lead end-to-end solution design across business, data, application, and security domains.

Modern Cloud & Web Stack: Architect custom-built solutions utilizing Microsoft Azure, React, Node.js, and NoSQL technologies.

Governance & Strategy Impact: Steer high-visibility initiatives through formal architecture review boards and project gating milestones.

Collaborative Onsite Environment: Partner closely with lead developers, SMEs, and stakeholders in a central Toronto office.

Responsibilities
Provide architectural leadership, technical guidance, and support to multidisciplinary project teams and subject matter experts.

Create, update, and validate comprehensive solution architecture models, diagrams, decision records, and artifacts (current-state/target-state architectures, data flows, API/interface specifications, and non-functional requirements).

Develop reusable reference architecture models and patterns to promote standardization and shared capabilities across enterprise initiatives.

Collaborate directly with lead developers and technical staff to validate architectural designs, implementation approaches, source code, Azure DevOps repositories, CI/CD pipelines, and deployed environment configurations.

Guide project teams through formal enterprise architecture governance processes, project gating checkpoints, Privacy Impact Assessments (PIA), and Threat Risk Assessments (TRA).

Arrange, facilitate, and present at architectural validation sessions and review boards to secure necessary governance approvals.

Identify architectural gaps, dependencies, and technical risks, working proactively with project teams to formulate mitigation strategies.

Leverage enterprise modeling tools and repositories (e.g., PowerDesigner, Visio, Azure DevOps) to document and store deliverables in accessible formats.

Conduct structured knowledge transfer sessions and maintain complete, accessible architecture documentation for internal technical staff.

Qualifications
Enterprise Architecture & Frameworks: Depth of knowledge across enterprise architecture domains (business, information, application, technology, and security) with proficiency in architecture frameworks such as TOGAF or Zachman (Strictly Required).

Senior Architecture Experience: 10+ years of proven experience successfully delivering solution architectures in government or similar complex, multi-project enterprise environments (Strictly Required).

Cloud & Custom Application Architecture: Hands-on experience documenting, validating, and evolving custom-built cloud applications on Microsoft Azure and integrating externally hosted services (Strictly Required).

Modern Web Technologies: Practical experience with modern web application architectures, preferably MongoDB, Express.js, React, and Node.js (MERN), or comparable JavaScript, Node.js, and NoSQL stacks (Strictly Required).

Information & Data Modeling: Demonstrated experience creating conceptual and logical data models, data flows, metadata definitions, and interface specifications (Strictly Required).

Governance & Security Assessments: Proven track record leading teams through formal project gating, architecture review boards, Privacy Impact Assessments (PIA), and Threat Risk Assessments (TRA) (Strictly Required).

Architecture Modeling Tooling: Hands-on proficiency creating architecture models and artifacts using tools such as PowerDesigner, Visio, and Azure DevOps (Strictly Required).

Nice-to-Have Assets:
Prior experience delivering solution architectures within the Ontario Public Service (OPS), Broader Public Sector (BPS), or regulated government environments.

Familiarity with public sector enterprise architecture guidelines, GO-ITS standards, and formal gating processes.

Knowledge of digital accessibility standards (AODA and WCAG compliance requirements).

Summary
If you're interested in the "Senior Technology Architect" role based in Toronto, we encourage you to apply online at

Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.

Employment type: Contractor