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Abeeb AhmadBackend Developer
Email
[email protected]
Phone
08100437363
GitHub
https://github.com/AbeebProPlus
Profile

I am a motivated backend developer with 3+ years hands-on experience in building and maintaining web APIs, working with relational databases, and developing secure and scalable backend services. I’m currently growing my expertise in C# and the .NET ecosystem, including ASP.net core and Entity Framework. I’ve contributed to production-ready systems across the full software development lifecycle—from planning and implementation to testing, deployment, and support. I’m comfortable with Git for version control, writing SQL queries, and collaborating in Agile teams. I’m passionate about continuous learning and delivering reliable, maintainable solutions.

Professional Experience

.Net Backend Developer

Oxygen X - Access Holdings
  • •Developed and maintained secure RESTful APIs using C# and ASP.NET Core, enabling core lending features including user onboarding, loan application processing, credit evaluations, and repayment scheduling.
    • 11/2024 – present
  • •Implemented database schemas and data access layers with Entity Framework Core on SQL Server, ensuring efficient storage of customer profiles, loan records, and transaction histories while maintaining data integrity and performance.
  • •Wrote comprehensive unit tests using xUnit to validate critical loan-processing logic and ensure code reliability, helping to reduce bugs and regressions in production.
  • •Collaborated with cross-functional teams (front-end/mobile developers, QA, and product managers) in an Agile Scrum environment, using Git for version control and performing code reviews to deliver features iteratively and on schedule.
  • •Supported deployment and operations by working closely with DevOps to set up CI/CD pipelines for automated testing and deployment of ASP.NET Core services, and assisted in monitoring and troubleshooting post-release issues to ensure smooth launches.

    • Backend Developer

    Crusader Sterling Pensions
  • •Built and maintained backend APIs for pension-related services, following principles aligned with ASP.NET Core, including RESTful design, service layers, and modular components.
    • 10/2024 – presentLagos, Nigeria
  • •Wrote optimized SQL queries and stored procedures using PostgreSQL to support reporting and transaction processing.
  • •Developed and executed unit and integration tests using xUnit, validating service logic, API responses, and data integrity.
  • •Used Moq to simulate dependencies and isolate components during test execution, ensuring test reliability and code maintainability.
  • •Managed Git workflows, including branching, merging, and pull requests as part of an Agile team.
  • •Participated in the full development lifecycle, from requirements gathering and testing to deployment and post-release support.
  • •Authored internal documentation for services, test plans, and deployment processes to support cross-team collaboration.

    • Backend Developer

    Jacinth Solutions
  • •Delivered backend services for an online marketplace using clean architecture and modular design patterns inspired by .NET Core/MVC.
    • 01/2022 – 11/2023Brisbane, Queensland, Australia
  • •Designed relational schemas and implemented SQL logic to support core business operations in PostgreSQL and MySQL.
  • •Created unit tests using xUnit and used Moq to test service-layer logic in isolation and validate edge-case handling.
  • •Contributed to CI pipeline test validation and deployment readiness with GitLab CI.
  • •Collaborated with cross-functional teams including QA and product analysts to ensure quality and timely delivery of backend features.
  • •Documented internal APIs and deployment steps for efficient onboarding and knowledge sharing.
  • •Continuously strengthening .NET proficiency through hands-on work with C#, ASP.NET Core, EF Core, and related tooling.
    • Education

    BSc Physics

    University of Ilorin
    10/2014 – 10/2018Nigeria
    Skills
    Software Engineering

    Backend development, clean architecture, API design, and software lifecycle management

    Programming Languages

    C#, JavaScript, Java

    .NET Technologies

    ASP.NET Core, Entity Framework Core, .NET MVC, .NET Web API, LINQ

    Authentication & Security

    JWT, OAuth2, Role-based access control, IdentityServer

    Testing

    xUnit, Moq, Integration testing, Test-driven development (TDD)

    Databases

    SQL Server, PostgreSQL, MySQL

    DevOps & Tools

    Git, GitHub, GitLab CI/CD, Docker

    Frontend & Integration

    RESTful APIs, React.js, HTML/CSS

    Methodologies

    Agile (Scrum), Waterfall

    Soft Skills

    Problem-solving, collaboration, communication, adaptability

    Projects

    Pension Fund Management System

    Role: Backend Developer

    Description: Worked on a secure pension management backend system enabling enrollment, contributions, fund allocation, and disbursements for employees and retirees.

    Key Contributions:

  • •Developed and maintained modular .NET Web APIs for pension account operations and fund calculations
  • •Designed database schemas and implemented business logic using Entity Framework Core and SQL Server
  • •Implemented JWT-based security, with strong encryption for sensitive data and SSL for secure transmission
  • •Wrote comprehensive unit and integration tests using xUnit to validate fund-related logic and disbursement flows
  • •Applied security best practices including CORS policies, HTTP security headers, and input validation
  • •Used Git for version control and collaborated with QA and product teams in an Agile development process
  • •Used Postman for endpoint testing and wrote internal API documentation to support integration with mobile and web apps

    • Digital Lending Platform (Loan Application & Onboarding System)

    Role: Backend Developer

    Description: Designed and implemented the backend of a digital loan platform to manage user onboarding, loan applications, eligibility scoring, approvals, and repayment workflows. The system supports individual borrowers and internal staff roles such as loan officers and reviewers.

    Key Contributions:

  • •Developed secure RESTful APIs using ASP.NET Core for onboarding, loan applications, approval processes, and repayment tracking
  • •Built user identity, verification, and document upload flows, with role-based access control for admin and borrower users
  • •Implemented loan eligibility rules and scoring logic to determine loan limits based on user data, credit history, and business rules
  • •Managed loan disbursement records and scheduled repayments using SQL Server and Entity Framework Core
  • •Integrated with third-party APIs for credit history validation and SMS/email notifications
  • •Created unit and integration tests using xUnit to ensure accuracy of loan calculations and approval logic
  • •Participated in CI/CD deployment workflows using Git, GitLab CI, and containerization with Docker
    • Awards

    Rocketdevs Certified Top 5% Backend Dev

    RocketDevs
    08/2024