Senior Software Engineer - .NET

JOB PURPOSE

We're seeking an experienced Senior Software Engineer to be deployed with our airline client — a major international airline headquartered in Dubai — as part of their IT Innovation and Digital Services team. You will design and build scalable, production-grade software systems using .NET and C#, lead technical decisions, and drive engineering best practices in a collaborative, fast-paced environment. This is a hands-on senior role that combines deep technical delivery with mentorship of junior and mid-level engineers.

KEY RESPONSIBILITIES

Design and develop robust RESTful APIs and microservices using ASP.NET Core, applying clean/hexagonal architecture patterns.

Lead code reviews and establish engineering best practices, coding standards, and quality benchmarks across the team.

Optimise application performance and SQL Server database queries through profiling, indexing, and benchmarking techniques.

Collaborate with product owners, architects, and cross-functional stakeholders to translate requirements into high-quality technical solutions.

Design and implement cloud-native solutions on Azure (App Services, Functions, Service Bus, AKS) with CI/CD pipelines.

Mentor and guide junior and mid-level developers through code reviews, pair programming, and knowledge sharing.

Champion security best practices including OAuth 2.0, OpenID Connect, JWT, and OWASP secure coding guidelines.

Contribute to observability and monitoring strategy using Serilog, OpenTelemetry, and Application Insights.

REQUIRED SKILLS & EXPERIENCE

1. Core .NET & C# : Deep expertise in C# (generics, async/await, LINQ, reflection, delegates and events), .NET Core / .NET 5+, ASP.NET Core Web API, middleware pipeline, dependency injection, Entity Framework Core (migrations, query optimisation, relationships). Strong CLR, memory management, and GC knowledge.

2. Architecture & Design: SOLID principles, design patterns (Factory, Repository, CQRS, Mediator, Decorator), clean/hexagonal architecture, microservices and SOA, domain- driven design. REST, GraphQL, and gRPC API design.

3. Data & Storage SQL Server (query tuning, indexing, stored procedures, transactions), ORMs (EF Core, Dapper), NoSQL (Redis, MongoDB, Cosmos DB), and data modelling fundamentals.

4. Cloud & DevOps Azure (App Services, Functions, Service Bus, AKS), CI/CD (Azure DevOps, GitHub Actions), containerisation (Docker, Kubernetes), infrastructure-as-code (Bicep, Terraform).

5.Testing & Quality xUnit, NUnit, MSTest, integration testing, mocking (Moq, NSubstitute), TDD/BDD mindset, code review practices, SonarQube, Roslyn analysers.

6. Security OAuth 2.0, OpenID Connect, JWT, ASP.NET Identity, OWASP awareness, secrets management, and secure coding practices.

7. Performance & Observability: Profiling and benchmarking (.NET Diagnostics, BenchmarkDotNet), distributed tracing and logging (Serilog, OpenTelemetry, Application Insights), caching strategies.

EXPERIENCE & QUALIFICATIONS

Category Requirement

Experience 5–8 years of professional software development experience with C# / .NET as primary technology stack.

Education Bachelor's degree in Computer Science, Software Engineering, or equivalent discipline. Relevant Microsoft certifications (e.g. AZ-204, AZ-400) are a strong advantage.

Compensation AED 10,000 – AED 13,000 per month, inclusive of standard Cinergie Digital

Domain Prior experience in airline, aviation, or travel technology is advantageous but not mandatory.