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K20S Information Technology Est

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Job Title: Senior Full Stack Engineer (.NET)
Location: Doha, Qatar
Employment Type: Full-time
Experience Level: Senior (5+ Years )
Department: Engineering / Technology
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Job Overview
We are looking for a Senior Full Stack Engineer with deep expertise in .NET (7 or higher), who thrives in developing scalable, maintainable, and modern web applications. The ideal candidate has hands-on experience in event-driven systems, clean architecture, and working with both relational (SQL Server) and non-relational (MongoDB) databases.
Experience with RabbitMQ, design patterns, and modular monolithic architecture is essential. Knowledge of the ride-hailing business domain is a strong advantage.
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Key Responsibilities
· Design, develop, and maintain high-performance full-stack applications using .NET 7+ (C#).
· Build modular, maintainable solutions using Clean Architecture and Clean Code principles.
· Develop and integrate event-driven services using RabbitMQ.
· Architect systems based on Modular Monolithic principles, while aligning with potential transition paths to microservices.
· Work with both SQL Server and MongoDB, applying best practices for relational and NoSQL data modeling.
· Ensure the delivery of high-quality code with unit tests and through code reviews.
· Collaborate with designers, product owners, QA, and other developers to ship meaningful features.
· Mentor junior engineers and contribute to architectural discussions and roadmap planning.
· Document solutions, processes, and technical decisions effectively.
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Required Qualifications
· Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
· Minimum 5+ years of hands-on experience in full-stack software development.
· Strong proficiency in:
o .NET 7+ (C#)
o RabbitMQ or equivalent message brokers
o MongoDB (NoSQL) and SQL Server (SQL)
o Clean Architecture, Design Patterns, and Modular Monolith systems
o Event-driven development and asynchronous programming
· Experience building and consuming RESTful APIs, WebSockets, and SignalR.
· Familiar with source control (Git), CI/CD pipelines, and agile methodologies.
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Added Value / Nice to Have
· Experience working with Angular (12 or higher).
· Proficiency with Redis for caching and session management.
· Strong understanding of Unit Testing frameworks (xUnit, NUnit, Jasmine, Karma, etc.).
· Knowledge of Microservices architecture and containerization (Docker, Kubernetes).
· Familiarity with cloud platforms (e.g., Azure, AWS).
· Prior experience in the ride-hailing / mobility business domain.
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Soft Skills
· Strong problem-solving and analytical abilities.
· Effective communication skills in cross-functional environments.
· Passion for writing clean, maintainable, and scalable code.
· Ability to take initiative and own tasks from start to finish.
· Collaborative mindset and eagerness to mentor others.
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Why Join Us?
· Be part of a mission-driven team transforming urban mobility and digital transportation.
· Work with modern tech stacks and scalable architecture patterns.
· A collaborative, fast-paced, and innovation-friendly culture.
· Competitive salary.
· Career development support, technical training, and growth opportunities.
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