Senior .Net Developer

Site Organic LLC; Galway; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid working

25 days annual leave

Private health insurance

Dental coverage

Pension scheme

Income protection

Life assurance

Employee Assistance Programme

Career development & training

Gym membership

Volunteer day

Job summary

Ministry Brands in Galway is seeking a Senior .NET Developer to modernise its accounting platform into a cloud-native Unified Accounting Service. You will design, build and operate scalable cloud-native services while collaborating with Product, Architecture and UX teams to deliver innovative accounting solutions.

You will work with AI-assisted development practices, REST APIs, and event-driven architectures, contributing to secure, high-quality software used by thousands of customers worldwide.

Qualifications

• 6+ years of experience developing commercial software applications.
• Strong experience with C#, .NET 8+, ASP.NET Core and Entity Framework Core.
• Experience designing and developing REST APIs and service-oriented or microservice architectures.
• Strong SQL Server and relational database experience.
• Experience with front-end technologies such as Blazor, React or Vue.
• Experience building and deploying cloud-native applications, ideally in Azure (AWS also valuable).
• Working knowledge of Docker, Kubernetes, Git and CI/CD pipelines.
• Experience in Agile software development teams.
• Experience using AI developer tools such as GitHub Copilot or similar AI-assisted coding platforms.
• Strong problem-solving and collaborative approach to software development.
• Excellent communication across cross-functional teams.
• Nice to have experience modernising legacy .NET apps.
• Nice to have experience in fintech/payments or accounting domains.
• Nice to have knowledge of LLMs, RAG architectures or AI-powered development.
• Nice to have knowledge of event-driven systems like Kafka, GraphQL, Playwright and testing frameworks.
• Nice to have GDPR, PCI or security/compliance awareness.

Responsibilities

• Design, develop and maintain cloud-native .NET services and APIs for our Unified Accounting Service.
• Modernise legacy .NET applications into scalable, event-driven services and microservice architectures.
• Work daily with AI coding assistants and agentic development tools, reviewing AI-generated code and maintaining high engineering standards.
• Collaborate with Product, Architecture and UX teams to deliver innovative accounting solutions.
• Integrate AI, ML and RAG capabilities into customer-facing features.
• Develop secure, scalable and maintainable software using modern engineering practices.
• Contribute to sprint planning, estimation and Agile ceremonies.
• Support automation, testing and CI/CD best practices.
• Participate in code reviews and maintain engineering quality across the team.

Skills

C#

.NET 8+

ASP.NET Core

REST APIs

SQL Server

Blazor

React

Vue

Azure

Docker

Kubernetes

CI/CD

Git

AI developer tools

Tools

Docker

Kubernetes

Git

CI/CD pipelines

Job description

About Ministry Brands

Ministry Brands is a leading provider of SaaS operational management systems, payments platforms, digital engagement tools and background screening solutions for purpose-driven organisations. We serve more than 95,000 customers as a trusted partner in digital transformation and enablement – advancing missions, driving efficiencies, and building engaged communities for more than four decades. Our Galway R&D centre is Ministry Brands' global AI R&D hub and is in the middle of a major expansion as we deliver a multi-year AI-native transformation of our product portfolio.

About The Role

As a Senior .NET Developer, you'll play a key role in modernising Ministry Brands' accounting platform into a cloud-native Unified Accounting Service while helping shape the future of AI-native financial products. This is a hands‑on engineering role where you'll design, build and operate scalable cloud-native services while working with modern AI‑assisted development practices. You'll collaborate closely with Product Managers, Architects, UX Designers, Quality Engineers and fellow developers to deliver secure, high‑quality software that serves thousands of customers worldwide. You'll have the opportunity to work on both greenfield development and the modernisation of existing applications, helping to transform our accounting platform through cloud technologies, event‑driven architecture and AI‑powered capabilities.

What you'll do

• Design, develop and maintain cloud-native .NET services and APIs for our Unified Accounting Service.
• Modernise legacy .NET applications into scalable, event-driven services and microservice architectures.
• Work daily with AI coding assistants and agentic development tools, reviewing AI-generated code and maintaining high engineering standards.
• Collaborate with Product, Architecture and UX teams to deliver innovative accounting solutions.
• Integrate AI, machine learning and retrieval-augmented generation (RAG) capabilities into customer‑facing features.
• Develop secure, scalable and maintainable software using modern engineering practices.
• Contribute to sprint planning, estimation and Agile ceremonies.
• Support continuous improvement through automation, testing and CI/CD best practices.
• Participate in code reviews and help maintain engineering quality across the team.

What You Bring

• 6+ years' experience developing commercial software applications.
• Strong experience with C#, .NET 8+, ASP.NET Core and Entity Framework Core.
• Experience designing and developing REST APIs and service-oriented or microservice architectures.
• Strong SQL Server and relational database experience.
• Experience with modern front‑end technologies such as Blazor, React or Vue.
• Experience building and deploying cloud-native applications, ideally in Microsoft Azure (AWS experience also valuable).
• Working knowledge of Docker, Kubernetes, Git and CI/CD pipelines.
• Experience working within Agile software development teams.
• Experience using AI developer tools such as GitHub Copilot or similar AI‑assisted coding platforms.
• Strong problem‑solving skills and a collaborative approach to software development.
• Excellent communication skills with the ability to work effectively across cross‑functional teams.
• Nice to have Experience modernising legacy .NET applications.
• Nice to have Experience within accounting, fintech or payments platforms.
• Nice to have Knowledge of LLMs, RAG architectures or AI‑powered application development.
• Nice to have Experience with Apache Kafka, GraphQL or event‑driven systems.
• Nice to have Knowledge of Playwright or automated testing frameworks.
• Nice to have Understanding of GDPR, PCI or other security and compliance standards.

What's in it for You

• Hybrid working model based from our Galway office.
• 25 days annual leave plus public holidays.
• 100% employer‑paid private health insurance, including cover for dependents.
• Dental coverage.
• Employer‑matched pension scheme.
• Income protection and life assurance.
• Employee Assistance Programme (EAP) and wellbeing initiatives.
• Career development through mentorship, professional training, and certification opportunities.
• Galway gym membership.
• Annual volunteer day.
• Amazing company culture.

Ministry Brands is a leading provider of SaaS operational management systems, payments platforms, digital engagement tools and background screening solutions for faith‑based, non‑profit and for‑profit organizations. We serve more than 95,000 customers as a trusted partner in digital transformation and enablement – advancing missions, driving efficiencies, and building engaged communities for more than four decades. The diverse and real‑world experiences of our team members serving their communities makes us stronger together and enhances our ability to advance digital transformation for the greater good. Ministry Brands is committed to acknowledging and valuing our employee differences and to creating an environment in which every individual’s unique strengths and abilities are developed and valued. Our employees share in the responsibility for creating this environment and demonstrate mutual respect and acceptance in the workplace. We welcome everyone and are dedicated to creating a culture where all our employees have equal opportunity to be heard and reach their full potential.