Senior Solutions Designer

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 strong 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&IT 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.