We are seeking an experienced Senior .NET/Integration Developer to build the connective tissue of a new digital banking ecosystem for a major Credit Union. This role is ideal for a hands-on engineer who thrives in cross-functional teams and has strong experience developing backend APIs, orchestrating data routing between digital platforms (VeriPark), core banking systems (Fiserv), and third-party endpoints.

What You'll Do

• Design, develop, and maintain secure, high-performance REST API and service integrations across the VeriLink integration layer.
• Coordinate directly with vendors (Fiserv, VeriPark) and internal teams to execute complex core banking integrations.
• Support extensive integration testing activities, including System Integration Testing (SIT), regression, and end-to-end validation.
• Assist in the deconversion and retirement of legacy platforms (Forge 2.0), ensuring clean data archiving and member continuity.
• Collaborate with product managers, designers, architects, and developers in Agile delivery teams.

Required Qualifications

• 5+ years of recent experience in senior software development roles.
• Strong backend development experience with .NET, C#, and enterprise application integration.
• Extensive hands-on experience building and consuming RESTful APIs and working with OpenAPI standards.
• Experience with Microservices architecture and continuous integration pipelines.
• Strong database experience and knowledge of data mapping/reconciliation.

Nice to Have

• Familiarity with Fiserv core banking platforms or VeriPark solutions.
• Experience in the financial services sector and handling legacy system deconversions.
• Experience working with cloud platforms such as Microsoft Azure.

What We Offer

• Opportunity to work on impactful, large-scale modernization initiatives.
• Collaborative and supportive engineering culture.
• Exposure to modern cloud-native technologies and platforms.
• Flexible and dynamic remote delivery environment.