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Top job
CharityJob, Kingston upon Thames (Hybrid)
£70,000 - £80,000 per year
Your code can make a difference: Join the UK’s #1 charity job board as a Senior .NET Developer
Posted today Apply Now
The Fair Education Alliance, London (Hybrid)
£70,000 - £80,000 per year
A Director of Operations and Impact (maternity cover) with responsibility for operations, culture, governance & impact over the coming year
Posted today
Lifelites, London (Hybrid)
£32,900 - £40,000 per year
Trainer & Engagement Officer wanted! Join Lifelites to strengthen partnerships, deliver training & drive our ambitious expansion programme.
Posted today Apply Now
Closing in 4 days
Elephant Family, Shepherd's Bush (Hybrid)
£35,000 - £40,000 per year
Posted today
Friends of the Earth International, Remote
As a reference for a Netherlands-based position, the salary range at 100% (37.5 hours per week) will be between € 4720 and € 5158 monthly.
Posted today
Parentkind, Remote
£30,000 - £40,000 per year
Join Parentkind at this exciting time!
Posted today Apply Now
Centre for Mental Health, London (Hybrid)
£45,000 per year
Head of CYP Mental Health Coalition able to influence & achieve positive change for the mental health of babies, children & young people
Posted today Apply Now
The Sick Children's Trust, London (Hybrid)
£42,500 - £46,000 per year
We have an exciting opportunity to lead in Corporate and Philanthropy as a Development Manager
Posted today Apply Now
e:merge (UK) Company Ltd, Bradford (On-site)
£39,862 - £42,839 per year
An amazing opportunity to lead Emerge - a young people's charity in Bradford - and develop the organisation into the future.
Posted today
Single Homeless Project, London (On-site)
Starting at £39,328.93 and rising incrementally to £42,567.02 per annum (pro rata)
Chance to shape the development of a young and ambitious service while growing your own career within SHP.
Posted today
Closing in 6 days
The City of London Corporation, City of London (Hybrid)
£57,240 - £64,610 per annum inclusive of all allowances
Posted today
Ambitious about Autism, N10 3JA (Hybrid)
£49,951 - £57,372 per year (depending on skills and experience)
Posted today
Closing in 6 days
Willen Hospice, Milton Keynes (Hybrid)
58,000 - 64,000
Willen Hospice seeks an exceptional Associate Director – Strategic Giving & Partnerships to lead and transform our high-value fundraising.
Posted today Apply Now
Four Greens Community Trust Family and Wellbeing Hub, Plymouth (Hybrid)
£50,000 - £56,000 per year
Looking for a new challenge? Four Greens Community Trust is seeking an exceptional CEO to lead it in its phase of its growth and development
Posted today
Page 4 of 47
Kingston upon Thames, Greater London (Hybrid)
£70,000 - £80,000 per year
Full-time
Permanent

Actively Interviewing

This organisation is scheduling interviews as applications come in. They're ready to hire as soon as they find the right person. Don't miss your opportunity, apply now!

Job description

Location: Hybrid – 2 days per week in our Kingston office (KT2)

About Us
We’re the team behind CharityJob, the UK’s largest and most specialised job board for the charity and not-for-profit sector. For over 20 years, we’ve helped Charity organisations recruit passionate professionals who make a real difference. As we continue to enhance our platform and expand our capabilities, we’re looking for a talented Senior .NET Web Developer to join us.

The Role
We are seeking a highly skilled and experienced Senior .NET Developer to join our dynamic team. As a Senior .NET Developer, you will play a crucial role in the development and enhancement of our websites, CharityJob and Charity Connect. As an integral part of our team you will work very closely with us through daily standups, sprint planning meetings, and many discussions on Teams video calls to ensure the successful delivery of our projects. You will also collaborate closely with our product and QA teams to ensure the highest quality of our deliverables.

We’re seeking a developer with strong .NET and Azure expertise, along with solid front-end skills in HTML, CSS, JavaScript and ReactJS.

Key Responsibilities

  • Develop, test and maintain features for Charityjob using .NET 9 and SQL Server.
  • Work with Microsoft Azure services, including Azure SQL, Blob Storage, and Azure Cognitive Search.
  • Collaborate daily via Microsoft Teams with Product Managers, QA, and fellow developers.
  • Participate fully in Scrum ceremonies, including sprint planning, reviews, and retrospectives.
  • Contribute to front-end development using HTML, CSS, JavaScript and occasionally ReactJS.
  • Write clean, maintainable, well-documented code with an emphasis on performance and scalability.
  • Offer technical input on architecture and best practices, and support less experienced developers.

Requirements

  • 5+ years of professional experience in .NET web development (ideally .NET Core / .NET 8 or 9).
  • Strong knowledge of SQL Server and experience designing relational databases.
  • Hands-on experience with Microsoft Azure (SQL, Storage, Search, etc.).
  • Front-end development skills in JavaScript, HTML, CSS, and ReactJS.
  • Excellent written and spoken English
  • Experience working in a Scrum/Agile setting.

Desirable

  • Experience with CI/CD using Azure DevOps.
  • Familiarity with automated testing tools and practices.
  • Prior experience working on high-traffic websites or job boards.

What We Offer

  • Competitive salary £70 – 80k depending on experience
  • 25 days annual leave (excluding bank holidays)
  • Hybrid working (2 days in office, 3 days from home per week)
  • Generous employer pension contribution
  • We let our teammates invest time to learn new skills to apply to their work.
  • An open and democratic work culture where everyone can contribute, learn and teach.
  • Working hours 9am to 5.30pm reducing to 9am to 5pm during August & December

How to Apply: If you are passionate about technology and want to contribute to a project that has a positive impact, we would love to hear from you. Please send your CV/resume and a cover letter detailing your relevant experience

Posted by
CharityJob View profile Organisation type Non Charity Employer Company size 21 - 50

We help charities find people who share their purpose, faster, easier and fairly.

CharityJob logo Play
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Refreshed on: 25 September 2025
Closing date: 10 October 2025 at 15:31
Tags: IT

The client requests no contact from agencies or media sales.