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IRL Limerick - Castletroy, Ireland
Onsite
BD is one of the largest global medical technology companies in the world. Advancing the world of health™ is our Purpose, and it’s no small feat. It takes the imagination and passion of all of us—from design and engineering to the manufacturing and marketing of our billions of MedTech products per year—to look at the impossible and find transformative solutions that turn dreams into possibilities.
A career at BD means learning and working alongside inspirational leaders and colleagues who are equally passionate and committed to fostering an inclusive, growth-centered, and rewarding culture. You will have the opportunity to help shape the trajectory of BD while leaving a legacy at the same time.
To find purpose in the possibilities, we need people who can see the bigger picture, who understand the human story that underpins everything we do. We welcome people with the imagination and drive to help us reinvent the future of health. At BD, you’ll discover a culture in which you can learn, grow and thrive. And find satisfaction in doing your part to make the world a better place.
Become a maker of possible with us!
Our Peripheral Intervention (PI) business unit offers a comprehensive range of medical products, devices and services for the treatment of peripheral arterial and venous disease, cancer detection, and end-stage renal disease and maintenance.
This role is offered on a fixed term contract for a duration of 12 months
As a Senior Software Test Engineer, you will play a key role in ensuring the quality and reliability of Software for medical devices. You will work within an agile team environment or independently, driving Software Test Automation and TA frameworks, and supporting both development and sustaining activities. This role requires strong technical expertise, attention to detail, and a proactive approach to continuous improvement.
Main responsibilities will include:
Collaborate with Product Owners and key stakeholders to estimate work, define milestones, and plan deliverables.
Ensure all implementation aligns with business requirements and adheres to agile methodologies.
Contribute actively to feature development, code enhancements, and bug resolution.
Write clean, efficient, maintainable C# code and promote best engineering practices through example.
Lead and maintain architectural consistency across all Clean Architecture layers (Domain, Application, Infrastructure, UI).
Ensure adherence to system-wide architectural principles and promote scalable, testable designs.
Design and implement features using a Redux-based architecture (Redux.NET), including actions, reducers, effects, and immutable typed state.
Build and maintain state-machine–driven workflows (Stateless) supporting long-running operations, retries, timeouts, and error-handling mechanisms within a self-hosted Windows service.
Develop and optimize Blazor (Server and/or WebAssembly) components with a focus on performance, lifecycle management, thread-safety, and minimal re-rendering.
Implement robust UI patterns, including forms, routing, JS interop, virtualization, and rendering optimization.
Maintain comprehensive and up-to-date technical documentation, including architectural diagrams, state diagrams, data contracts, and deployment processes.
Communicate effectively with non-technical stakeholders, translating complex technical concepts into clear, understandable language.
Provide regular updates on technical risks, progress, and system considerations.
Ensure high code quality through automated testing frameworks, including unit tests, reducers/effects tests, and bUnit component tests.
Troubleshoot complex issues efficiently and drive continuous improvement across the engineering lifecycle.
Stay informed on emerging technologies, frameworks, and industry best practices.
Share insights with the team and advocate for appropriate adoption of new tools and methodologies.
About you
Degree in Computer Science or related field with 5+ years of professional software development experience.
Advanced proficiency in C#/.NET, including modern asynchronous programming (async/await, CancellationToken, IAsyncEnumerable, thread-safety patterns).
Strong experience designing and implementing Clean Architecture across domain, application, infrastructure, and UI layers.
Deep expertise with Blazor (Server and/or WebAssembly), including lifecycle behavior, rendering pipeline, diffing, virtualization, forms, routing, JS interop, and performance tuning.
Practical hands-on experience with Redux.NET, including actions, reducers, effects, side effects, and associated testing patterns.
Experience building complex workflows using Stateless with triggers, guards, retries, timeouts, and deterministic testability.
Strong background in ASP.NET Core APIs, background services, streaming endpoints, and device-facing communication protocols (gRPC, SignalR, WebSockets, USB/serial/CAN).
Solid understanding of concurrency and thread-safety tools such as SemaphoreSlim, AsyncLock, ReaderWriterLockSlim, lock-free structures, and Blazor UI-thread constraints.
Experience developing SPA-style front-end applications.
Strong test automation skills using frameworks such as xUnit, NUnit, Moq.
Additionally, experience with the following would be a plus:
Scrum methodologies and globally-distributed teams
.NET Core 8.0
Multi-threaded C# development
Offline-first Blazor WebAssembly, background sync
Event-sourcing or audit-friendly state persistence
Knowledge of JSON and REST based services
GIT/Azure DevOps workflow
Knowledge of Design Patterns
This role is offered on a fixed term contract for a duration of 12 months
At BD, we prioritize on-site collaboration because we believe it fosters creativity, innovation, and effective problem-solving, which are essential in the fast-paced healthcare industry. For most roles, we require a minimum of 4 days of in-office presence per week to maintain our culture of excellence and ensure smooth operations, while also recognizing the importance of flexibility and work-life balance. Remote or field-based positions will have different workplace arrangements which will be indicated in the job posting.
Becton, Dickinson and Company is an Equal Opportunity Employer. We evaluate applicants without regard to race, color, religion, age, sex, creed, national origin, ancestry, citizenship status, marital or domestic or civil union status, familial status, affectional or sexual orientation, gender identity or expression, genetics, disability, military eligibility or veteran status, and other legally-protected characteristics.
Required Skills
Optional Skills
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At BD, we are strongly committed to investing in our associates—their well-being and development, and in providing rewards and recognition opportunities that promote a performance-based culture. We demonstrate this commitment by offering a valuable, competitive package of compensation and benefits programs which you can learn more about on our Careers Site under Our Commitment to You.
Salary or hourly rate ranges have been implemented to reward associates fairly and competitively, as well as to support recognition of associates’ progress, ranging from entry level to experts in their field, and talent mobility. There are many factors, such as location, that contribute to the range displayed.
The salary or hourly rate offered to a successful candidate is determined by their experience, education, and skills, as well as the labor laws and Collective Bargaining Agreement (CBA) requirements applicable to the work location.
Salary Range Information
€54,800.00 - €83,600.00 EUR Annual