Software Engineer, .NET Developer

Belfast, Northern Ireland BT1, United Kingdom

Full-time Permanent Mid-level Senior

Posted 21 Oct 2026

ARC Regulatory combines specialist IVD/CDx clinical research expertise with laboratory services and software solutions to support Sponsors across the clinical trial lifecycle and accelerate global precision medicine studies.

Through its Dx CRO and Sponsor Delegation services, ARC supports the planning, delivery and oversight of global CDx clinical trials, acting as an extension of the Sponsor team and providing clear ownership and accountability across delegated activities.

ARC Laboratories, based in Belfast, Northern Ireland, provides in-house assay and clinical trial sample testing capabilities across IHC, qPCR, ELISA and NGS-based testing. The laboratory is UKAS ISO 15189 and CAP accredited, providing high-quality biomarker testing for precision medicine clinical trials.

ARC's Health Institution status, under the IVDR Article 5(5), provides a practical route for early-phase clinical trial sample testing in the EU and UK, helping reduce regulatory burden and enable faster sample testing for eligible studies.

ARC also combines its regulatory expertise with technology through ARC
360® powered by AURA AI. ARC
360® is a regulatory intelligence and submission collaboration platform scoped specifically for CDx clinical trials, bringing national regulatory requirements, submission workflows, document generation and project reporting into one place. AURA AI capabilities combine the speed of AI with human expertise to support structured, traceable and auditable regulatory outputs.

By connecting clinical research, laboratory and technology expertise, ARC helps Sponsors reduce complexity, manage risk and maintain control across their global precision medicine clinical trials.

Job Purpose

To be an integral member of ARC’s technology team, supporting the design, development and maintenance of cloud-based software solutions for precision medicine clinical trials.

Working closely with product managers, designers and fellow developers, the Software Engineer will use .NET and Azure technologies to build reliable, scalable applications that meet user and business needs. The postholder will contribute across the software development lifecycle, from understanding requirements and developing features to troubleshooting issues and improving application performance

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Key Responsibilities

• Develop and maintain applications using C#, .NET and .NET Core.
• Collaborate with product managers, designers and developers to translate requirements into practical, user-focused software solutions.
• Design and manage SQL Server databases, ensuring data integrity, performance and scalability.
• Develop and integrate APIs to support communication between applications and services.
• Implement and maintain Azure cloud services, including App Services, Functions and Storage.
• Participate in code reviews and contribute to consistent coding standards and software development best practice.
• Troubleshoot, debug and resolve application issues to improve reliability and efficiency.
• Contribute to continuous improvement across development processes, tools and application performance.
• Keep informed of emerging technologies and identify opportunities to support ARC’s software development.

We are looking for a technically capable Software Engineer with strong .NET development experience, a practical approach to problem-solving and an interest in building software that supports precision medicine research.

• Strong experience developing applications using C#, .NET and .NET Core.
• Practical experience designing and working with SQL Server databases.
• Proficiency in Azure cloud services, including App Services, Functions and Storage.
• An understanding of…