Principal .NET Engineer - Web & API Architect

Tkxel LLC; Lahore; On-site; PKR 1,200,000 - 2,000,000; Full time

Job summary

Tkxel LLC is seeking a skilled .NET Developer to design, develop, and maintain high-quality web and backend applications. You will work with .NET Core / .NET Framework, RESTful APIs, and SQL Server, implementing front-end integrations and modern architectural practices.

You will collaborate with cross-functional teams to translate business requirements into scalable technical solutions while adhering to coding standards and best practices.

Qualifications

• 6 years of hands-on experience in C#, ASP.NET Core / ASP.NET MVC / Web API.
• Strong understanding of OOP principles, design patterns, and SOLID.
• Experience with Entity Framework / EF Core or similar ORM tools.
• Proficiency in SQL Server (queries, procedures, indexing, performance tuning).
• Familiarity with Azure / AWS cloud services is a plus.
• Experience in unit testing (NUnit, MSTest, xUnit) preferred.
• Working knowledge of Git / GitHub / Azure DevOps / Jenkins for source control and CI/CD.
• Good understanding of Agile / Scrum methodologies.

Responsibilities

• Design, develop, and maintain applications using .NET Core / ASP.NET MVC / Web API.
• Write clean, scalable, and maintainable code following best practices and design patterns.
• Develop and consume RESTful APIs and integrate with third-party systems.
• Work with SQL Server or other relational databases — writing queries, stored procedures, and optimizing database performance.
• Implement front-end integrations using HTML5, CSS3, JavaScript, or Angular/React (optional).
• Participate in code reviews, debugging, and troubleshooting production issues.
• Collaborate with QA, DevOps, and product teams to ensure high-quality deliverables.
• Support deployment through CI/CD pipelines and maintain documentation of system changes.
• Apply security, performance, and scalability best practices across solutions.

Skills

C#

ASP.NET Core / MVC / Web API

OOP principles

Design patterns

SOLID principles

RESTful APIs

SQL Server

Entity Framework / EF Core

Azure / AWS

Agile / Scrum

Unit testing (NUnit MSTest xUnit)

Tools

HTML5

CSS3

JavaScript

Angular/React (optional)

Git

GitHub

Azure DevOps

Jenkins

Job description

Tkxel LLC is seeking a skilled .NET Developer to design, develop, and maintain high-quality web and backend applications. You will work with .NET Core / .NET Framework, RESTful APIs, and SQL Server, implementing front-end integrations and modern architectural practices.

You will collaborate with cross-functional teams to translate business requirements into scalable technical solutions while adhering to coding standards and best practices.