Senior Guidewire Developer to design, build, and support Java-based web services and API integrations across a ClaimCenter environment for an enterprise client. Our insurance client is seeking a Senior Guidewire Developer (7+ years of experience) to design, build, and support Java-based web services and API integrations using Guidewire ClaimCenter and Spring Boot
Join an enterprise insurance environment delivering Guidewire ClaimCenter integrations and modern API services. This role focuses on Java-based web services, microservices development, REST/SOAP integrations, and API architecture within a large-scale ClaimCenter ecosystem. The position offers hands‑on involvement across integration development, API documentation, testing, and support activities.
Part‑Time, Toronto, Hybrid, Working Hours: EST
Must Haves 7+ years developing Java‑based web services and API integrations
Hands‑on Guidewire ClaimCenter integrations using Gosu programming and integration frameworks
Spring Boot and microservices architecture development
RESTful and SOAP web services, batch processing, and Postman API testing/troubleshooting
Familiarity with JSON, XML, YAML, Swagger/OpenAPI, authentication, authorization, logging, messaging patterns, and SAPI/PAPI/XAPI architecture
Nice to Have Guidewire ACE certification
Responsibilities Design Java-based web services and API integrations
Develop Guidewire ClaimCenter integrations using Gosu programming and Guidewire integration frameworks
Support Java-based web services and API integrations
Develop microservices using Spring Boot
Build and consume RESTful and SOAP web services
Perform API testing and troubleshooting using Postman
Define and document APIs using Swagger/OpenAPI




Our insurance client is seeking a Senior Guidewire Developer (7+ years of experience) to design, build, and support Java-based web services and API integrations using Guidewire ClaimCenter and Spring Boot
Join an enterprise insurance setting delivering Guidewire ClaimCenter integrations and modern API services. This role focuses on Java-based web services, microservices development, REST/SOAP integrations, and API architecture within a large-scale ClaimCenter ecosystem. The position offers hands‑on involvement across integration development, API documentation, testing, and support activities.
Part‑Time, Toronto, Hybrid, Working Hours: EST
Must Haves 7+ years developing Java‑based web services and API integrations
Hands‑on Guidewire ClaimCenter integrations using Gosu programming and integration frameworks
Spring Boot and microservices architecture development
RESTful and SOAP web services, batch processing, and Postman API testing/troubleshooting
Familiarity with JSON, XML, YAML, Swagger/OpenAPI, authentication, authorization, logging, messaging patterns, and SAPI/PAPI/XAPI architecture
Nice to Have Guidewire ACE certification
Responsibilities Design Java-based web services and API integrations
Develop Guidewire ClaimCenter integrations using Gosu programming and Guidewire integration frameworks
Support Java-based web services and API integrations
Develop microservices using Spring Boot
Build and consume RESTful and SOAP web services
Perform API testing and troubleshooting using Postman
Define and document APIs using Swagger/OpenAPI
Disclaimer: AI may be used in evaluating candidates.
This posting is for an existing vacancy.

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📌 Senior Guidewire Developer to design, build, and support Java-based web services and API integration (Ontario)
🏢 S.i. Systems
📍 Ontario