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System Integration Developer Jobs in Toronto, ON

TalentVault

Guidewire Integration Engineer

Toronto, ON · Remote

CA$100 - CA$120/hr

Guidewire Integration Engineer - Contract Our client is a global Tier 1 Systems Integrator with projects in Canada and we are looking for someone at the Senior Consultant level for a Guidewire ...

Vancity

Senior Integration Engineer

Toronto, ON · Hybrid

Job posting link via Si Systems: Senior Integration Engineer Our Story & Purpose: We'reVancity, a member-owned credit union built on the principles of inclusion and social justice.Since 1946, our ...

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System Integration Developer information

What is the difference between System Integration Developer vs Software Engineer?

AspectSystem Integration DeveloperSoftware Engineer
CredentialsBachelor's in Computer Science or related field; certifications like Cisco or Microsoft may helpBachelor's or higher in Computer Science or Software Engineering; certifications like AWS or Java may be relevant
Work EnvironmentTypically in IT or tech companies, focusing on integrating various systems and platformsIn diverse settings including tech firms, startups, or enterprise environments, developing software solutions
Employer & Industry UsageUsed in industries requiring system integration such as manufacturing, finance, and healthcareCommon across all tech-driven industries, including software, finance, and consulting

While both roles require strong technical skills and understanding of software systems, a System Integration Developer primarily focuses on connecting different systems and ensuring they work seamlessly together. In contrast, a Software Engineer develops and maintains software applications. The roles often overlap but differ in their core responsibilities and focus areas.

What are the key skills and qualifications needed to thrive as a System Integration Developer, and why are they important?

To thrive as a System Integration Developer, you need strong programming skills, knowledge of integration patterns, and a background in computer science or related fields. Familiarity with integration platforms (like MuleSoft, Dell Boomi, or Apache Camel), APIs, and messaging systems, as well as certifications in relevant tools, is often required. Problem-solving abilities, attention to detail, and effective communication are crucial soft skills for collaborating across technical and business teams. These competencies ensure seamless system connectivity, data consistency, and efficient workflows in complex IT environments.

What are System Integration Developers?

System Integration Developers are professionals who design, build, and maintain solutions that enable different software systems, applications, or databases to work together seamlessly. They are responsible for connecting disparate systems within an organization, often using APIs, middleware, or custom scripts. Their work ensures that data flows smoothly and processes are automated across platforms, improving efficiency and reducing manual work. System Integration Developers need strong programming skills, familiarity with integration tools, and a deep understanding of both the source and target systems involved.

What are some common challenges System Integration Developers face when working on large-scale integration projects?

System Integration Developers often encounter challenges such as ensuring compatibility between diverse systems, managing data consistency, and handling unexpected integration errors. Coordinating with multiple teams—such as software engineers, business analysts, and IT support—is critical to resolve issues quickly and maintain project timelines. Additionally, keeping up with evolving technologies and integration standards requires ongoing learning and adaptability. Addressing these challenges successfully can lead to smoother project execution and valuable experience for career growth.
Infographic showing various System Integration Developer job openings in Toronto, ON as of June 2026, with employment types broken down into 88% Full Time, and 12% Contract. Highlights an 77% In-person, 8% Hybrid, and 15% Remote job distribution.

Senior Developer, Guidewire Integration

Definity Financial

Toronto, ON

CA$92K - CA$142K/yr

Full-time

Retirement, PTO

Posted 4 days ago

Job description

The opportunity 

As a Senior GW Integration Developer, you will be able to design, develop, and maintain integrations between Guidewire applications and external systems. The ideal candidate will have expertise in Guidewire PolicyCenter and the associated integration frameworks, APIs, and messaging systems within the Property & Casualty (P&C) insurance domain.

Your leadership and deep architectural knowledge will empower Definity to unlock the full potential of GW InsuranceSuite applications, delivering innovative and scalable solutions that provide a strategic advantage for our colleagues and customers.

What you can expect 

  • Lead and implement new Guidewire integrations, participating in design discussions, solutioning for target state as well as perform hands-on development.
  • Modernize legacy integrations via microservices based solutions and architecture.
  • Work with business subject matter experts and business analysts to design and develop an approach for the integration, effort estimation and build design documents
  • Design, develop, configure and unit test InsuranceSuite integration enhancements and support defect resolution during testing phase.
  • Help with production support for the platform by analyzing logs and identifying potential problems and defects, and root cause analysis of problems for the highly available business solution
  • Support all the above in a fast-paced, exciting environment while supporting regular release rollouts into the Production environment
  • Follow design and development procedures, processes, standards and tools that align to Definity's methodology and best practices
  • Apply industry standards and technical expertise to provide sound solutions that increase business results and/or minimize business and technical risk
  • Assists in the translation of requirements into a story map
  • Ensure that software designs and coding practices result in a high-quality product that follows Definity's architectural principles and direction and meets both functional and non-functional requirements
  • Follow secure coding and Guidewire best practices
  • Ensures that projects are completed on time
  • Participate in regular, constructive peer code reviews to ensure code quality, maintainability, and knowledge sharing

What you bring 

  • 5+ years of experience in Guidewire (PolicyCenter, BillingCenter) with a focus on Integrations. 
  • Strong hands-on experience with: Guidewire Integration Framework, Gosu programming, SOAP/REST APIs and web services, XML/XSD/JSON, Messaging Systems (MQ, Kafka)
  • A profound understanding of platform integration patterns and APIs, with proven experience architecting and leading the integration of multiple complex systems.
  • Nice to have exposure on Guidewire cloud solutions such as Cloud APIs, APD, IG App, App Events.
  • The ability to own and lead solution discussions, make critical technical decisions, and develop technical solutions with minimal guidance.
  • Superior verbal and written communication skills, with experience presenting technical solutions to both technical and non-technical stakeholders.
  • Experience with project problem diagnosis, solution development, facilitation of decision making, documentation, and managing stakeholder expectations.
  • Understanding of P&C Insurance domain.
  • Guidewire Certification (Specialist or higher)

Salary Range:  $92,000 - $142,000

Actual salary for the role may vary depending on work location of the successful candidate and other factors including but not limited to, skills, education, experience, working conditions and the local labour market.

This position is being posted to fill an existing vacancy.

Interested in this role, but don't meet every requirement? We encourage you to apply! We know from experience that a candidate doesn't need 100% of the qualifications listed to bring incredible value to our team. We're actively seeking diverse backgrounds and perspectives to help us make insurance better. At Definity, inclusion, diversity, and equity aren't just "nice to have" - they're essential to our success. 

What's in it for you?

  • Hybrid work schedule for most roles
  • Company share ownership program
  • Incentive Program - Eligible employees may participate in various incentive plans which are paid out at the discretion of the company and subject to individual and company performance.
  • Pension and savings programs, with company-matched RRSP contributions
  • Paid volunteer days and company matching on charitable donations
  • Educational resources, tuition assistance, and paid time off to study for exams
  • Focus on inclusion with employee groups, support for gender affirmation surgery, access to BIPOC counsellors, access to programs for working parents 
  • Wellness and recognition programs 
  • Discounts on products and services

Go ahead and expect a lot - you deserve it.

It's better here - but don't take our word for it. Definity was named by Great Place to Work as one of the Best Workplaces in Canada for women, for youth, and for inclusion.

Our inclusive work environment welcomes diversity and supports accessibility. If you require accommodation at any time during the recruitment process, please let us know by contacting accessibility@economical.com.

Background checks

This role requires successful clearance of background checks (including criminal checks and leadership references).

#LI-Hybrid

#IND1

Definity is the parent company to some of Canada's most long-standing and innovative insurance brands, including Economical Insurance, Sonnet Insurance, Family Insurance Solutions, and Petline Insurance. Our ambition is to be one of Canada's leading and most innovative property and casualty insurers. We can't do that without our people, so we embrace and encourage a culture that's collaborative, ambitious, rewarding, and empowering. 

We offer a flexible, hybrid work experience where employees work from the office and virtually depending on the type of work they are doing and who they are working with. Bring your true self and be a part of our journey. It's better here. 

Apply