Senior .NET Engineer - Cloud Backend (AWS) | Hybrid Dublin

Mason Alexander; Dublin; Hybrid; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Mason Alexander has partnered with a leading UK travel business to build a new Dublin engineering team. This Senior Software Engineer role focuses on backend systems, microservices, and cloud architecture, with a strong emphasis on performance and reliability.

You will design scalable services in .NET/AWS, work in a true hybrid model (one day in Dublin every two weeks), and mentor peers while delivering high-impact features for millions of holiday bookings.

Qualifications

• Seasoned backend engineer with C#/ .NET experience.
• Experience with distributed systems and cloud-native architectures.
• Hands-on AWS and microservices exposure.
• API development with GraphQL.
• Experience with SQL/NoSQL and containerized deployments.
• Strong focus on resilience and performance.

Responsibilities

• Design and scale distributed backend applications, APIs, and event-driven architectures.
• Handle high-volume supplier integrations and pricing engines.
• Deploy and monitor containerised cloud services in AWS.
• Mentor peers and raise engineering standards.

Skills

C# / .NET

AWS

GraphQL

APIs

Docker / Kubernetes

SQL / NoSQL

Event-driven design

Distributed systems

Job description

Mason Alexander has partnered with a leading UK travel business to build a new Dublin engineering team. This Senior Software Engineer role focuses on backend systems, microservices, and cloud architecture, with a strong emphasis on performance and reliability.

You will design scalable services in .NET/AWS, work in a true hybrid model (one day in Dublin every two weeks), and mentor peers while delivering high-impact features for millions of holiday bookings.