Senior Software Engineer

Mason Alexander; Dublin; Hybrid; EUR 90,000 - 150,000; Full time

Benefits offered by this job

Hybrid work model

Job summary

Mason Alexander partners with a leading UK travel business creating a Dublin-based Engineering team. We’re seeking a Senior Software Engineer (Backend-first) to design scalable microservices and integrate high-volume travel inventory in a cloud-native AWS environment.

Based in Dublin with a hybrid model (1 day in office every two weeks), you’ll own key backend systems, mentor peers, and help shape our cloud architecture while delivering reliable APIs and performance at scale.

Qualifications

• 5+ years in backend software engineering.
• Strong C# / .NET background.
• Experience with AWS cloud and APIs.

Responsibilities

• Design and scale distributed backend applications and APIs.
• Handle high-volume supplier integrations and pricing engines.
• Deploy, operate, and monitor containerised services on AWS.
• Elevate engineering standards and mentor peers.

Skills

C# / .NET

AWS

GraphQL

Distributed systems

Docker / Kubernetes

Tools

Docker

Kubernetes

SQL/NoSQL

Job description

We have exclusively partnered with a leading UK travel business on this fantastic opportunity as they are creating a new Engineering team in Dublin and this will be their first expansion outside of the UK market.

Senior Software Engineer (.NET / AWS)

Dublin (Hybrid – 1 day in office every 2 weeks)

Are you a Senior Engineer who thrives on building scalable, high-throughput backend systems? We’re a fast-growing travel platform sending millions of customers on dream holidays every year—and we’re scaling fast.

We’re looking for a Senior Software Engineer (Full-Stack leaning Backend) to design resilient microservices, integrate high-volume travel inventory, and shape our cloud architecture.

Responsibilities

• Design and scale distributed backend applications, APIs, and event-driven architectures.
• Handle high-volume supplier integrations, pricing engines, and transactional workflows.
• Deploy, operate, and monitor containerised cloud services in AWS.
• Elevate engineering standards, mentor peers, and balance speed with system maintainability.

Required

• Strong experience in commercial backend engineering (C# / .NET or comparable).
• Hands-on expertise with distributed systems, event-driven design, and cloud-native architecture (AWS).
• Strong experience developing APIs and using GraphQL
• Familiarity with SQL/NoSQL databases, messaging platforms, Docker/Kubernetes, and production observability.
• Strong architectural problem-solving skills and a focus on resilience and performance.

Why Join Us?

• Work-Life Balance: 37.5 hours/week with core hours (10 AM – 4 PM) and broad flexibility.
• True Hybrid Model: Mostly remote, with just 1 day in our Dublin workspace every two weeks.
• Impact & Ownership: High-visibility technical ownership in a thriving, tech-driven industry.