Senior Backend Engineer
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Key skills for this role
About the Role
CNTXT AI is seeking a Senior Backend Developer with strong.NET experience to design, build, and maintain scalable backend systems. The role involves developing APIs, contributing to architecture, mentoring junior developers, and collaborating with cross-functional teams.
Key Skills for This Role
Responsibilities
- Design, develop, and maintain backend services using .NET and ASP.NET Core
- Build scalable, high performance APIs (REST and/or gRPC)
- Contribute to backend architecture and system design decisions
- Write clean, maintainable, and well tested code following SOLID principles
- Apply modern design patterns such as Dependency Injection, Repository, CQRS, and Mediator
- Design and work with relational databases (e.g. SQL Server, PostgreSQL)
- Optimize data access, performance, and transaction handling
- Integrate with third party services and internal platforms
- Collaborate with DevOps teams on CI/CD pipelines and deployments
- Mentor junior developers and participate in code reviews
Requirements
- Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience
- 5 7+ years of backend development experience
- Strong proficiency in C# and .NET / .NET Core
- Extensive experience with ASP.NET Core
- Solid understanding of APIs, backend security, and distributed systems
- Experience with ORMs such as Entity Framework Core
Full Job Posting
Role Overview
- We are seeking a Senior Backend Developer with strong experience in the .NET ecosystem to design, build, and maintain scalable backend systems.
- This role requires hands on expertise in ASP.NET Core, modern backend architecture, and distributed systems.
Key Responsibilities
- Design, develop, and maintain backend services using .NET and ASP.NET Core.
- Build scalable, high performance APIs (REST and/or gRPC).
- Contribute to backend architecture and system design decisions.
- Write clean, maintainable, and well tested code following SOLID principles.
- Apply modern design patterns such as Dependency Injection, Repository, CQRS, and Mediator.
- Design and work with relational databases (e.g. SQL Server, PostgreSQL).
- Optimize data access, performance, and transaction handling.
- Integrate with third party services and internal platforms.
- Collaborate with DevOps teams on CI/CD pipelines and deployments.
- Mentor junior developers and participate in code reviews.
Required Qualifications & Experience
- Bachelor’s degree in Computer Science, Software Engineering, or equivalent experience.
- 5 7+ years of backend development experience.
- Strong proficiency in C# and .NET / .NET Core.
- Extensive experience with ASP.NET Core.
- Solid understanding of APIs, backend security, and distributed systems.
- Experience with ORMs such as Entity Framework Core.
Preferred Experience
- Experience with microservices or modular monolith architectures.
- Familiarity with cloud platforms (Azure preferred).
- Experience with Docker; Kubernetes exposure is a plus.
- Knowledge of message brokers or asynchronous processing.
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