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
- Robust 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

📌 Senior .NET API / Back-End Developer within payments, financial services, or banking environments (Canada)
🏢 Experis
📍 Canada