Principal Software Developer

Reperio Human Capital; Ireland; On-site; EUR 70,000 - 100,000; Full time

Job summary

Reperio Human Capital is looking for an experienced Principal Software Developer to join our team in Galway, Ireland. This hybrid role involves leading the architecture, design, and development of enterprise software solutions, focusing on mentoring teams and delivering scalable applications.

The ideal candidate will have over 10 years of software development experience and strong expertise in C#/.NET or Java. Responsibilities also include defining platform strategies and collaborating across teams to ensure best practices.

Qualifications

• 10+ years' software development experience.
• Strong knowledge of Computer Science principles like Data Structures and Algorithms.
• Excellent problem-solving and leadership skills.

Responsibilities

• Define technical architecture and platform strategy.
• Drive performance, scalability, and security best practices.
• Mentor developers and collaborate with cross-functional teams.

Skills

C#/.NET

Java

SQL Server

NoSQL databases

AWS

Azure

Architecture Design

Cloud platforms

Angular

Job description

Principal Software Developer – Galway, Ireland (Hybrid)

My client is seeking an experienced Principal Software Developer to lead the architecture, design, and development of enterprise software solutions. This is a hands‑on technical leadership role with responsibility for driving architecture, mentoring teams, and delivering scalable, secure applications.

Key Requirements

• 10+ years' software development experience
• Strong knowledge and understanding of Computer Science principles (e.g., Data Structures, Algorithms, Design Patterns, Hash Tables)
• Strong expertise in C#/.NET or Java
• Experience with SQL Server, NoSQL databases, AWS and/or Azure
• Strong understanding of software architecture, design patterns, CI/CD, and Agile development
• Excellent logical‑based thinking, problem‑solving, communication, and leadership skills

Responsibilities

• Define technical architecture and platform strategy
• Design and develop APIs, services, and web applications
• Lead architecture and code reviews
• Drive performance, scalability, security, and engineering best practices
• Mentor developers and collaborate with cross‑functional teams

Key Skills

• Java, C#, .NET, Angular
• Architecture Design
• Cloud platforms

Reperio Human Capital acts as an Employment Agency and an Employment Business.