C# asp.net developer Work, Jobs (with Salaries)

Senior Developer (C#, ASP.NET MVC, JavaScript)
System C —Belfast
- Full-time
- Analysis skills
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- Hybrid work
- Azure
- Software troubleshooting
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Software Engineer
SAASDOTNET LIMITED —Swindon
- £40,000 - £65,000 a year
- Full-time
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Quick apply
2d
Developer
CSM Consulting Services Ltd —Slough
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- Full-time
- Hybrid work
- Azure
- Java
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Quick apply
4d
Software Support Specialist
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- £32,000 - £40,000 a year
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QA Engineer
Fleet Assist —Huntingdon
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- Full-time
- Hybrid work
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Quick apply
4d
Software Developer - Prime Services
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Experienced .NET Engineer
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- Annual leave
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- £70,000 - £75,000 a year
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Gen Re —London
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- Full-time
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- Master's degree
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Solutions Architect
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- Full-time
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KPMG —London
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Software Developer | Capital Markets
Marex —Nantwich
- Full-time
- AI
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Senior Web Analytics Engineer
The Fidelis Partnership —London
- Overtime
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11d
Senior Software Engineer
Nice —Southampton
- Azure
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Senior Software Engineer
Answer Digital —Leeds
- Hybrid work
- Mentoring
- Agile
- AI
- Annual leave

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Senior Developer (C#, ASP.NET MVC, JavaScript)

System C -
Belfast

Apply Now

Job details

Full-time

Qualifications

Technical troubleshooting
Waterfall
Mentoring junior staff
Technical support
Analysis skills
Software quality assurance
Back-end development
Mentoring
Scrum
GitHub
Front-end development
Unit testing
Android development
Software development or architecture experience
TypeScript
React Native

Full job description

Description

At System C, we create technology that connects care and improves outcomes across the NHS. Our CIS Oncology (ChemoCare) product plays a critical role in supporting chemotherapy treatment management nationwide, and we are continuing to invest in its safety, quality, and long-term evolution.

The Senior Developer role sits within the CIS Oncology product suite (ChemoCare), which supports the management of chemotherapy treatment across the NHS. ChemoCare is a market leading product in its field, with a forward looking programme of work to ensure it continues to provide safe, effective, and valued support to NHS customers.

This is a senior individual contributor role, intended for an experienced developer who enjoys hands on work. The role supports reliable delivery, good engineering practice, and ownership of more complex areas of the product.

What you will do:

Designing, developing, and maintaining software within the CIS Oncology (ChemoCare) product suite
Owning complex features or technical areas through design, implementation, and handover into testing and release
Making technical decisions and escalating risks or trade-offs where needed.
Contributing to the technical direction of the ChemoCare product suite, balancing near term delivery with longer term maintainability
Working closely with the QA team to support effective testing, defect resolution, and overall product quality
Ensuring code is clear, maintainable, and appropriately tested, in line with agreed development standards
Reviewing code written by others and providing practical, constructive feedback
Supporting and mentoring less experienced developers as part of normal team working
Providing 3rd line support (as part of a shared team responsibility) for the ChemoCare product, including investigation and resolution of complex defects where required

What you will bring

Strong professional experience with C# and ASP.NET MVC
Strong SQL Server experience
Experience in developing with for the web: JavaScript, HTML, CSS
Knowledge of principles of writing mobile apps and deployment on apple and android app stores
Experience using GitHub for source control and collaboration
Strong analytical and problem-solving skills both at a strategic and tactical level
Experience working with complex or long-lived codebases
Confidence contributing to technical design and making informed trade-offs
A pragmatic, calm approach when dealing with ambiguity or pressure
Clear communication, including explaining technical constraints to non-technical stakeholders
Significant commercial experience operating at senior developer level in both back-end and front-end areas

Nice to have

Experience with React Native or React, or equivalent frameworks
Experience in writing automated unit tests using NUNIT
Good understanding of waterfall, agile and scrum development methodologies, and their practical application.
Experience in .NET 10 and other latest technologies including AI integration
Experience in TypeScript

Why join System C?

You will work on software that genuinely matters, alongside people who value collaboration, ownership, and integrity. We support flexible working, encourage reflective practice, and value those who are comfortable navigating change while keeping quality and patient safety at the forefront.

Apply today and help us continue to deliver technology that supports better care across the NHS.

Apply Now

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