.NET Backend Developer

Codebase Technologies; Karachi Division; On-site; PKR 1,800,000 - 3,200,000; Full time

Job summary

Codebase Technologies in Karachi, Pakistan, is seeking a Mid-Level .NET Developer to join our backend engineering team. You will design and build RESTful APIs, implement microservices, and collaborate with frontend, mobile and QA teams to deliver robust banking software.

You’ll work with .NET 8, C#, EF Core, SQL databases, and modern DevOps practices. The role offers growth, learning, and exposure to fintech standards in a fast-paced environment.

Qualifications

• 2–4 years of backend development experience required.
• Proficient in .NET 8, C#, and EF Core for data access.
• Experience with relational databases and RESTful APIs.

Responsibilities

• Design, develop, and maintain RESTful APIs and microservices using .NET 8 (ASP.NET Core).
• Build and optimize data access layers with EF Core and SQL databases.
• Integrate with third-party financial services and maintain security controls.
• Write clean, testable code with unit/integration tests and code reviews.
• Collaborate with frontend/mobile/QA teams and participate in grooming sessions.

Skills

.NET 8

C# proficiency

Async/await

SQL querying

Agile/Scrum

Unit testing

Tools

Entity Framework Core

SQL Server

PostgreSQL

RabbitMQ

Git

Docker

CI/CD (GitHub Actions/Azure DevOps)

Job description

Codebase Technologies is a global digital banking technology company that empowers banks, financial institutions, and fintechs to launch, transform, and scale innovative financial services. Through its award-winning Digibanc™ platform, Codebase delivers cloud-native, API-first solutions spanning digital banking, core banking, lending, onboarding, payments, and embedded finance for both conventional and Islamic institutions. With digital banking and financial propositions delivered across 19 countries, Codebase combines deep industry expertise with cutting‑edge technology to help shape the future of banking.

ABOUT THE ROLE

You will join the backend engineering team responsible for building and maintaining the APIs, services, and integrations that power Digibanc™ across MENA and APAC. As a Mid-Level .NET Developer, you will work on meaningful features end-to-end — from database design to API contract — and collaborate closely with front-end, mobile, and QA teams to deliver robust, banking‑grade software.

KEY RESPONSIBILITIES

• Design, develop, and maintain RESTful APIs and microservices using .NET 8 (ASP.NET Core)
• Build and optimize data access layers using Entity Framework Core and raw SQL against relational databases
• Integrate with third-party financial services including payment gateways, core banking systems, and KYC providers
• Write clean, testable code with appropriate unit and integration test coverage
• Participate in code reviews, sprint planning, and technical grooming sessions
• Debug production issues, analyze logs, and implement lasting fixes
• Follow secure coding practices aligned to OWASP and internal security guidelines

REQUIRED SKILLS & EXPERIENCE

Experience

• 2–4 years of professional backend development experience
• Minimum 1.5 years hands-on experience with .NET 8 or .NET 6/7 in production
• Experience working in Agile/Scrum delivery teams

Technical

• .NET 8 (ASP.NET Core Web API) — required
• C# proficiency including async/await, LINQ, generics, and dependency injection
• Entity Framework Core — code‑first migrations, query optimization, and relationships
• SQL Server or PostgreSQL — schema design, indexing, and stored procedures
• RESTful API design principles — versioning, pagination, error handling, and status codes
• Authentication and authorization — JWT, OAuth 2.0, and role‑based access control
• Familiarity with message queues — RabbitMQ or Azure Service Bus
• Git version control — branching strategies, PRs, and code review workflow
• Basic Docker knowledge for containerized local development and deployment
• CI/CD awareness — experience working within GitHub Actions or Azure DevOps pipelines

Nice to Have

• Exposure to fintech, digital banking, or payments domain
• Experience with Redis for caching and session management
• Familiarity with Azure cloud services (App Services, Key Vault, Blob Storage)
• Understanding of event‑driven architecture and the outbox pattern
• Experience consuming or building Open Banking / ISO 20022 compliant APIs

WHAT WE'RE LOOKING FOR

• Strong fundamentals in software design — you write code that is readable and maintainable
• A problem‑solving mindset with comfort in ambiguous, fast‑moving environments
• Collaborative attitude with willingness to give and receive direct technical feedback
• Ability to own a feature from design through to production deployment

Why Join Us?

At Codebase Technologies, you’ll have the opportunity to work on impactful projects that redefine financial services across emerging and developed markets. We foster a culture of innovation, collaboration, and continuous learning, empowering our people to solve complex challenges, grow their careers, and contribute to building the next generation of digital banking experiences.