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Posted 23 July, 2026

Senior Mobile Developer

TyneStack Partners Ltd
Newcastle upon Tyne, ENG, GB Full Time

Job Description

Senior Mobile Developer (.NET MAUI / Xamarin)\n

Location: Newcastle upon Tyne (Hybrid)

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Salary: £50,000 – £55,000

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Job Type: Permanent

The Opportunity\n

Our client is an established software business with a long-standing reputation for developing innovative products used by thousands of customers across the UK.

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Due to continued growth, they're looking to recruit a Senior Mobile Developer to join a close-knit development team responsible for delivering and maintaining high-quality cross-platform mobile applications.

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This is a hands-on senior development role, ideal for someone who enjoys solving complex technical problems, improving application performance and working across both mobile and backend technologies.

The Role\n

Working as part of a collaborative development team, you will:

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  • Develop and maintain commercial mobile applications using .NET MAUI and Xamarin.
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  • Investigate and resolve issues across both mobile and backend codebases.
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  • Design, develop and enhance new functionality.
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  • Build high-quality, maintainable and scalable code.
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  • Optimise application performance and improve existing components.
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  • Work closely with fellow developers to deliver projects within agreed timescales.
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  • Contribute ideas and technical improvements across the development lifecycle.
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  • Keep up to date with emerging technologies and industry best practice.
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Essential Experience\n

We're looking for an experienced developer with most of the following:

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  • 6+ years' commercial C#/.NET development.
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  • Recent commercial experience building applications with .NET MAUI and/or Xamarin Forms.
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  • Strong knowledge of the MVVM design pattern.
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  • Commercial experience with XAML.
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  • Experience developing custom controls and UI components.
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  • Experience using custom renderers and/or handlers.
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  • Experience integrating or binding third-party native SDKs into Xamarin or .NET MAUI applications.
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  • Excellent debugging, analytical and problem-solving skills.
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  • Ability to work independently while contributing effectively within a collaborative team.
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Desirable\n
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  • Native iOS development experience.
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  • Native Android development experience.
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  • ASP.NET Core or other .NET web technologies.
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  • Performance optimisation of mobile applications.
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About You\n

You'll be a proactive, hands-on developer who enjoys solving technical challenges and takes pride in delivering high-quality software. You'll be comfortable working in a small, collaborative team where everyone contributes and ownership is encouraged.

What's on Offer\n
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  • Salary of £50,000 – £55,000.
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  • Hybrid working (3 days onsite each week, increasing during probation).
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  • Annual bonus.
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  • Company pension.
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  • Free onsite parking.
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  • Ongoing training and career development.
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  • Friendly and supportive development team.
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  • Opportunity to work on modern mobile technologies within a growing business.
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If you're an experienced Mobile Developer with strong .NET MAUI/Xamarin experience and are looking for your next challenge, we'd love to hear from you.