senior solutions designer.

We are seeking an experienced Senior Solutions Designer to provide senior-level technical leadership, solution architecture, and design guidance for a modern online registration, permit management, and workflow platform. In this role, you will be responsible for defining and maintaining the end-to-end solution design—connecting a public-facing web portal, middleware integration services, and a Microsoft Dynamics CRM back-office platform. Working closely with cross-functional technical leads, business analysts, cybersecurity, and infrastructure teams, you will ensure the solution's application architecture, security, performance, scalability, and data flows align with strict enterprise technology standards.

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

Duration: 6-month contract.

Advantages
Multi-Platform Architecture: Lead solution design bridging modern Java/React web portals, MuleSoft middleware, and Microsoft Dynamics CRM back-office systems.

Seniority & Leadership Scope: Act as the primary technical design authority guiding cross-functional delivery teams and vendor partners.

Complex Data Transformation: Leverage deep expertise in J2EE integration, XML/XSLT transformations, and secure API architecture.

Focused Onsite Collaboration: Collaborate directly alongside senior architects and technical leads in a dedicated 5-day per week workspace.

Responsibilities
Lead the end-to-end technical solution design and architecture for modern web applications, middleware integration layers, and COTS CRM platforms.

Define detailed application architecture, data flow diagrams, security controls, and n-tier integration specifications connecting public web portals to back-office systems.

Architect and oversee J2EE integration services, REST/SOAP APIs, and middleware interfaces using XML, XSD, XSLT, XQuery, and transformation frameworks.

Collaborate with business analysts, cybersecurity leads, and product management to translate complex business needs into detailed functional and technical design documents.

Guide technical development teams through SDLC phases within Agile and hybrid delivery models, participating in code/design reviews and technical risk assessments.

Perform technical analysis and impact assessments for system enhancements, data transformations, and workflow automation.

Maintain business and system architecture artifacts throughout the project delivery lifecycle, ensuring alignment with enterprise standards.

Qualifications
COTS CRM Architecture Seniority: 10+ years of hands-on experience in the design, development, implementation, and maintenance of large-scale, complex COTS CRM platforms (such as Microsoft Dynamics CRM, Oracle Siebel, or IBM Cúram) (Strictly Required).

J2EE System Integration: 10+ years of experience in J2EE integration connecting web applications with COTS CRM systems and enterprise middleware (Strictly Required).

Business & System Architecture: Demonstrated track record delivering end-to-end business architecture artifacts, system analysis, and detailed functional/technical design specifications (Strictly Required).

Web Tech & Scripting Stack: Hands-on experience with n-tier web-based architectures, Unix, Shell scripting, Ant scripts, JavaScript, HTML5, and source control management tools (e.g., Subversion, CVS, Git) (Strictly Required).

Data Transformation & XSLT: Proven proficiency executing data transformation tasks using XSLT, XQuery, XPATH, and XSLT IDEs (e.g., Oxygen XSLT IDE) (Strictly Required).

Nice-to-Have Assets:
Prior solution design experience within a public sector or broader public sector environment following formal enterprise architecture standards.

Familiarity with MuleSoft middleware integration flows or React front-end framework architectures.

Summary
If you're interested in the "Senior Solutions Designer" 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 View email address on randstad.com to ensure their ability to fully participate in the interview process.

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