Senior Software Engineer

Randox Laboratories; Northern Ireland; On-site; GBP 40,000 - 55,000; Full time

Job summary

A leading diagnostics company in Northern Ireland is seeking a Senior Software Engineer. The role involves designing and developing new diagnostic platforms, requiring strong experience in software development, especially with C#. Ideal candidates will have a degree in a STEM field and excellent communication skills. This is a full-time, permanent position based at Randox Science Park in Antrim.

Qualifications

• A minimum of 5 years' professional software development with at least 3 years in C#.
• Experience in designing and architecting software applications.
• Excellent written and verbal communication skills.

Responsibilities

• Design and develop new diagnostic platforms.
• Contribute to functional requirements based on user needs.
• Develop software solutions for medical device platforms.

Skills

C#

Software development

Agile practices

UI design patterns

Relational databases

Education

Degree in a STEM related discipline

Tools

.NET Core

ASP.NET Core Web API

Job description

Job ref: 25N/JDSS

Job type: Permanent

Quantity of Posts Available: 1

Location: NI - Science Park- Antrim Town

Closing date: Wednesday 08 Oct 2025 23:59

Job summary

Senior Software Engineer - (Job Ref: 25N/JDSS)

Randox Laboratories continues to develop disruptive innovations in Diagnostics and Healthcare globally. We are proud to have been named the Number 1 company in Northern Ireland for the second consecutive year in the Belfast Telegraph Top 100 Companies List for 2024. Our staff are at the heart of everything we do and achieve. We have exciting new career opportunity for a Senior Software Engineer within our R&D engineering team.

Location: Randox Science Park (30 Randalstown Road, Antrim, BT41 4LF).

Contract Offered: Full-time, Permanent

Working Hours / Shifts: 40 hours per week across 4 days in the office.

What does the Senior Software Engineer role involve?

The key function of this role is the design and development of new diagnostic platforms and the continuous improvement of existing platforms, including systems to support Randox internal departments. This is an extremely varied role that will require you to develop a varied skillset, including:

• Develop design concepts based on user requirements
• Contribute to the development of functional requirements specifications based on user requirements and approved concept designs
• Develop software and control solutions for medical device platforms
• Working within a multl-disciplinary team, clearly communicating requirements to other team members to ensure all development and testing is co-ordinated appropriately
• Work alongside other engineering disciplines, scientists and Software Test Engineers to ensure designs are rigorously tested, verified and validated
• identify appropriately specified COTS products / software for use within a system
• Liaise with the purchasing department on the identification and evaluation of suitable suppliers
• Generate and maintain technical documentation, specifically, but not limited to, code review documentation, work Instructions, FMEA, BOM etc
• Conduct, review and revise FMEA
• Contribute to risk / hazard analysis for products under development and released
• Report on status of projects / designs, both orally and in written format, to direct and senior management
• For both products under development and released products, contribute to design change when necessary, ensuring that design change is managed in a controlled way

Who can apply?

Essential criteria:

• A minimum of 5 years' professional software development with at least 3 years in C#.
• A Degree/Higher qualification in a STEM related discipline or be able to demonstrate appropriate industrial expertise
• Experience of requirements gathering.
• Experience of designing and architecting software applications
• Experience with UI design patterns such as MVVM, MVC, MVP
• Experience of agile practices and CI / CD platforms
• Experience with relational databases.
• Experience of unit testing
• Experience in all stages of a SDLC
• Excellent written and verbal communication skills
• Desire to learn and explore new technologies

Desirable:

• Leading development and software project delivery.
• Any one of WPF, WinUI, Blazor, MAUI, Xamarin, Avalonia, Flutter, Electron, React Native
• A second programming language. (Python, Java, C++)
• Communicating with and controlling embedded devices using wired and wireless communication protocols
• Using an ORM
• NET Core , ASP.NET Core Web API
• Coding mathematical algorithms
• Cloud infrastructure and MS Azure or AWS
• Working within a regulated environment

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