Role: .NET Developer
Location: Toronto 4 days a week on site F2F interview required
Background check MANDATORY
Duration: 8+ Months
Job Description
About the Role
We are looking for a Senior .NET Developer with deep expertise in banking domain and microservices architecture to join our growing engineering team. You will design, build, and maintain scalable, high-performance financial applications while collaborating with cross-functional teams.
Key Responsibilities
- Design and develop scalable backend services using .NET 6/7/8 and ASP.NET Core
- Build and maintain RESTful APIs and gRPC services following microservices architecture patterns
- Work on core banking modules including payments, transactions, accounts, and compliance
- Design and optimize relational database schemas, stored procedures, and complex queries for high-volume transactional systems
- Implement event-driven architectures using Apache Kafka or Azure Service Bus
- Collaborate with architects to define service boundaries, API contracts, and data ownership
- Ensure adherence to PCI-DSS, SOX, and other banking compliance standards
- Implement security best practices: OAuth 2.0, OpenID Connect, JWT, and API Gateway patterns
- Write unit, integration, and contract tests with high code coverage
- Participate in code reviews, technical design discussions, and sprint planning
- Work with CI/CD pipelines (Azure DevOps / Jenkins / GitHub Actions)
- Monitor and troubleshoot production systems using tools like Dynatrace, Splunk, or ELK
Required Skills & Experience
- 6+ years of hands-on experience with .NET / C# development
- Strong experience with ASP.NET Core, Entity Framework Core, LINQ
- Proven experience building microservices using Docker and Kubernetes
- Solid understanding of banking domain payments (SWIFT, ACH, SEPA), core banking, lending, or cards
- Strong SQL proficiency complex queries, joins, CTEs, window functions, indexes, and query optimization
- Hands-on experience with relational databases: SQL Server, PostgreSQL, or Oracle in high-transaction financial environments
- Experience designing normalized database schemas, handling ACID transactions, and ensuring data integrity across microservices
- Proficiency in writing and optimizing stored procedures, triggers, and views
- Understanding of database partitioning, sharding, and replication strategies for scalability
- Experience with database migration tools (Flyway, Liquibase, or EF Core Migrations)
- Experience with message brokers: Kafka, RabbitMQ, or Azure Service Bus
- Familiarity with Redis for distributed caching and session management
- Familiarity with Azure or AWS cloud-native services
- Strong grasp of SOLID principles, DDD (Domain-Driven Design), and CQRS/Event Sourcing
- Experience with API Gateway tools (APIM, Kong, Ocelot
