Client: Government Services Integration Cluster, Ministry of Public and Business Service Delivery and Procurement

Location: 40 St.

Clair Avenue

West, Toronto, ON

Work Arrangement: 100% Onsite – 5 days per week

Contract: September 21, 2026 – March 31, 2027

Extension: 1 possible extension

Openings: 1

Security Clearance: No clearance required

Closing Date: October 1, 2026 at 12:00 PM EST

Submission Limit: 1 candidate

Position Overview The Government Services Integration Cluster is seeking a Senior Solutions Designer to design and develop complex, highly available, enterprise-level technology and integration solutions.

The successful candidate will have extensive experience in backend design and development, enterprise integration, Spring Framework/Spring Integration, IBM App Connect Enterprise (ACE) or MuleSoft, REST/JMS/AMQP, databases, Azure integration, and cloud-based integration solutions.

The role requires solid systems-analysis and solution-design capabilities, the ability to translate business requirements into technical solutions, and demonstrated experience leading other developers as a Team Lead.

Key Responsibilities

- Design hosting and technology solutions based on client business requirements, service specifications, standards, policies, best practices, and cost models.

- Design and develop large, complex, highly available and mission-critical server applications and integration solutions.

- Gather, analyze, and translate business and technical requirements into scalable solution architectures and technical designs.

- Design enterprise integration solutions using appropriate integration patterns, technologies, design principles, and best practices.

- Design and develop backend services using REST Web Services, JPA, Hibernate, SQL, and PL/SQL.

- Design and implement integration solutions using Spring Framework, particularly Spring Integration.

- Design and develop solutions using enterprise service buses and message-oriented middleware such as IBM App Connect Enterprise (ACE) or MuleSoft.

- Work with integration technologies including JMS, AMQP, REST, APIs, Message Queues, Middleware, and ESB technologies, including their application within Azure Integration environments.

- Design and implement cloud-based integration solutions.

- Work with relational databases and data models, including Oracle and SQL Server.

- Develop solutions based on business requirements using technologies and approaches such as UML, JEE, Service Bus, and ETL.

- Conduct system analysis, requirements gathering, use-case development, and solution evaluation.

- Develop prototypes and proof-of-concept solutions for presentation to clients and senior management.

- Evaluate existing systems for technical performance, capacity, scalability, expansion, renovation, or replacement requirements.

- Assess system performance and capacity and provide recommendations for optimization and improvement.

- Prepare detailed technical specifications, architecture/design documentation, implementation documentation, and other required artifacts.

- Participate in planning, migration, implementation, and sustainment of large and complex system-development initiatives.

- Provide technical guidance and leadership to development teams and lead other developers as a Team Lead.

- Facilitate technical discussions with developers, architects, business stakeholders,



and senior management.

- Provide advice on short- and long-term technology and solution-development activities.

- Evaluate emerging technologies and trends for potential application to current and future technology requirements.

- Support solution cost/benefit analysis and technology planning.

- Ensure solutions align with enterprise architecture standards, security requirements, recovery procedures, and organizational policies.

- Work collaboratively with project teams and ensure deliverables are completed within established timelines.

Requirements

Mandatory Qualifications & Skills

1.

Technical

Skills – Must Have

- 10+ years of experience in backend design and development using:
- REST Web Services

- JPA

- Hibernate

- Databases

- SQL

- PL/SQL

- Strong expertise in enterprise integration design, including:

- Integration patterns

- Integration technologies

- Design principles

- Integration best practices

- In-depth knowledge of the Spring Framework, particularly Spring Integration, with hands-on experience designing and building integration solutions using Spring Integration.

- Strong knowledge and hands-on experience with message-oriented middleware and Enterprise Service Bus (ESB) technologies, specifically IBM App Connect Enterprise (ACE) or MuleSoft.

- Experience designing and building solutions using IBM ACE or MuleSoft.

- Experience with integration technologies such as JMS, AMQP, and REST, including an understanding of their use within an Azure context / Azure Integration environment.

- Hands-on experience with cloud-based integration solutions.

- Experience working with Oracle and SQL Server databases and data models.

- Experience with APIs, Message Queues, Middleware, and Enterprise Service Bus (ESB) technologies.

- Experience designing solutions from business requirements using UML, JEE, Service Bus, and ETL.

- 10+ years of backend design and development experience using REST Web Services, JPA, Hibernate, databases, SQL, and PL/SQL.

- Demonstrated experience leading other developers as a Team Lead.

2.

System

Analysis & Solution Design

- Experience conducting system analysis, requirements gathering, and use-case design.

- Experience translating business requirements into technical architecture and solution designs.

- Experience developing prototypes / proof-of-concepts for presentation to clients and/or senior management.

- Experience evaluating existing systems, including technical performance, capacity, scalability, and feasibility of expansion, renovation, or replacement.

- Strong conceptual and analytical capabilities for assessing technology requirements and conducting cost/benefit analysis.

3. Communication & Leadership

- Excellent analytical, problem-solving, and decision-making skills.

- Excellent verbal and written communication skills.

- Strong interpersonal, negotiation, and stakeholder-management skills.





- Demonstrated experience facilitating and leading discussions with both technical teams and business stakeholders.

- Ability to provide technical advice and communicate complex technical concepts to various audiences.

- Strong teamwork and collaboration skills.

- Proven track record of meeting deadlines and delivering quality solutions.

- Demonstrated experience leading development teams / developers as a Team Lead.

4.

Public

Sector / OPS Experience

- Prior OPS/Public Sector experience is highly desirable.

- Experience working with Enterprise Architecture within the Ontario Public Service (OPS).

- Experience following OPS architecture standards, documentation standards, artifacts, and templates.

- Knowledge of OPS I⁢ standards, policies, procedures, infrastructure architecture, and enterprise technology practices is an asset.

General Technical Knowledge

Candidates should also demonstrate knowledge of:

- Integrated networking technologies

- Mainframe and midrange server technologies

- Enterprise storage and SAN technologies

- Personal computer system technologies

- Enterprise directory and messaging standards

- Infrastructure and architecture management

- Facility/service delivery processes

- Infrastructure policies, procedures, and standards

- Security and recovery procedures

- Technical performance and capacity management

- Technology trends and emerging products

- Procurement processes and technology cost models

- Basic project management methodologies, including PMBOK

- Large-scale system migration, implementation, and sustainment

Candidate Profile The ideal candidate is a Senior Solutions Designer / Solution Architect / Integration Architect with 10+ years of backend development and solution-design experience, strong enterprise integration expertise, and deep hands-on knowledge of Spring Integration, IBM ACE or MuleSoft, REST, JMS/AMQP, Azure Integration, Oracle/SQL Server, JPA/Hibernate, SQL and PL/SQL.

The candidate must also demonstrate Team Lead experience, strong requirements-analysis and solution-design capabilities, and the ability to work directly with both technical and business stakeholders.

Prior Ontario Public Sector/OPS experience is strongly preferred.

Mandatory Screening Checklist

Candidates should meet all of the following before submission:

- 10+ years backend design/development experience

- REST Web Services

- JPA

- Hibernate

- SQL

- PL/SQL

- Enterprise integration design

- Integration patterns and best practices

- Spring Framework

- Spring Integration

- IBM App Connect Enterprise (ACE) OR MuleSoft

- JMS / AMQP / REST

- Azure Integration experience

- Cloud-based integration solutions

- Oracle and/or SQL Server

- APIs / Message Queues / Middleware / ESB

- UML / JEE / Service Bus / ETL

- System analysis and requirements gathering

- Use-case design

- Prototyping / proof-of-concept experience

- Team Lead experience leading developers

- Strong technical and business stakeholder communication

- Ability to work 100% onsite at 40 St.

Clair Avenue

West, Toronto

- Prior OPS/Public Sector experience preferred, not mandatory

Important: This is a 1-opening, 1-submission requisition, so candidates should be thoroughly screened against the mandatory integration, backend, Azure, ACE/MuleSoft, Spring Integration, and Team Lead requirements before submission.

📌 Senior Solutions Designer (Toronto)
🏢 Upstaff
📍 Toronto