Senior .NET API / Back-End Developer within payments, financial services, or banking environments

Senior .NET API / Back-End Developer within payments, financial services, or banking environments
Contract Length: 3-month contract with a strong likelihood of long-term renewal
Work Location: Canada (Remote)
Work Time Zone: Pacific Time (PT)
Minimum travel is expected once 1 - 2 days every 1-2 months and is client funded.
We are seeking a Senior .NET API / Back-End Developer to support a high-profile engagement. This opportunity supports an approved project with strong potential for long-term extension and future growth.
The successful candidate will be responsible for developing and maintaining enterprise-scale backend services, APIs, business rules, batch processing solutions, and reconciliation functionality within a complex and highly integrated environment.
WHAT YOU'LL DO
• Design, develop, and maintain scalable .NET backend applications and APIs
• Build and support RESTful services and enterprise integrations
• Develop and maintain business rules and application logic
• Design and optimize batch processing jobs and workflows
• Create and support reconciliation processes to ensure data accuracy and integrity
• Collaborate with business and technical stakeholders to gather and refine requirements
• Troubleshoot, analyze, and resolve production issues
• Participate in code reviews and contribute to development best practices
• Support application modernization and continuous improvement initiatives
• Ensure solutions meet performance, scalability, and security requirements
REQUIRED QUALIFICATIONS
• 7+ years of experience developing applications using C# and .NET technologies
• Strong experience designing and developing REST APIs
• Experience building scalable back-end services and distributed systems
• Experience with batch processing, data synchronization, and reconciliation solutions
• Strong SQL and database experience
• Experience working within enterprise-level environments
• Strong analytical, troubleshooting, and problem-solving skills
• Excellent communication and stakeholder engagement skills
• Ability to work independently in a remote environment
TECHNICAL REQUIREMENTS
• C#
• .NET / .NET Core
• REST APIs
• Microservices Architecture
• SQL Server or similar relational databases
• Backend Service Development
• Batch Processing
• Data Reconciliation
• Enterprise Application Integrations
• Git / Source Control
• CI/CD Practices
NICE TO HAVE
• Experience within payments, financial services, or banking environments
• Experience supporting credit card or similar payment processing platforms
• Cloud experience (Azure preferred)
• Experience with containerization technologies
• Experience working within Agile delivery teams

Work arrangement
Yes