Tosin Raphael

A highly skilled and results-driven Software Engineer with extensive experience in enterprise systems, financial technology, and scalable distributed applications. Seeking to leverage strong technical expertise, system design proficiency, and leadership capabilities to deliver high-impact solutions within a forward-thinking organization.

Senior Software Developer (Contractor) - Windray Systems (Contract to First Bank of Nigeria) - Nigeria

(2022-03)

• Mentored and led a team of developers, promoting collaboration and advanced programming standards.
• Standardized development practices using design patterns and unit testing.
• Designed, developed, and supported a scalable enterprise SaaS application.
• Architected and implemented microservices using ASP.NET Core (REST & gRPC).
• Decomposed monolithic systems into independent microservices.
• Implemented Event Sourcing and CQRS for distributed systems.
• Integrated message brokers (RabbitMQ, Kafka) and service buses.
• Implemented token-based authentication, OAuth, and mutual TLS.
• Containerized services with Docker and orchestrated deployments using Kubernetes.
• Optimized application performance for scalability and efficiency.

.NET Developer - LMG Enterprise Solutions Ltd - Nigeria

(2021-09 - 2022-02)

• Designed scalable and maintainable application architectures.
• Developed APIs using ASP.NET Core with secure authentication.
• Implemented database access using Entity Framework Core.
• Designed and optimized database schemas.
• Collaborated with frontend teams for seamless integration.
• Wrote unit and integration tests using xUnit/NUnit.

Backend Developer - Eglobal ICT-Hub Limited - Nigeria

(2019-06 - 2021-08)

• Designed and developed RESTful and GraphQL APIs.
• Implemented business logic and application workflows.
• Managed data access using Entity Framework Core.
• Implemented logging, monitoring, and performance tracking.
• Ensured clean separation of concerns across application layers.

B.Sc. - Computer Engineering - Ekiti State University (2025) Ekiti State, Nigeria

Advanced - Business Foundations - NexFord University (2023 - 2023) Online

B.Sc. - Computer Science - HEGT University (Haute École de Gestion et de Technologie) (2021 - 2021) Cotonou, Benin Republic