Senior Systems Developer

Permanent, Full time, Hybrid Working (minimum of 2 days per week in the office)

Location: This role can be based in any of our UK offices - Cardiff, Edinburgh, London, Warrington, or in one of these global hubs, Abuja - Nigeria, Amman - Jordan, Nairobi - Kenya

Salary: £45,732 per year for Cardiff, Edinburgh, Warrington. £50,614 per year for London, £29,274.04 for Abuja, JOD38,300 for Amman, £34,788.67 for Nairobi.

About us

Christian Aid exists to create a world where everyone can live a full life, free from poverty. We are a global movement of people, churches and local organisations who passionately champion dignity, equality and justice worldwide. We are the changemakers, the peacemakers, the mighty of heart.

We’re committed to building a diverse and inclusive workplace, and recognise the value this brings in forming strong, creative and high performing teams. We welcome applications from all sections of the community, and from those with experience from outside of the voluntary sector. And no, you don’t have to be Christian to work here – we encourage people of all faiths and none to apply. We just ask that everyone lives out our values of dignity, equality, justice and love. We value a good work-life balance, so we’re open to part-time and flexible working. We also offer hybrid working for our office-based colleagues.

About the role

In the role of Senior Systems Developer, you’ll be a senior, hands‑on contributor to the design and delivery of solutions, with a particular focus on our Microsoft Dynamics platform, helping ensure it delivers meaningful outcomes across the organisation. You’ll act as a technical authority within the ICT team, owning complex development work, influencing technical direction, and upholding high standards of quality, security, and maintainability.

Working closely with colleagues across ICT and CRM, you'll solve complex technical challenges, champion best practice, and ensure the delivery of high-quality features that align with organisational goals. You'll build strong, open relationships with internal stakeholders and external suppliers, protect the team's focus, and introduce new technologies where they can add long-term value. As a senior practitioner in the Dynamics ecosystem, you'll provide trusted advice on platform capabilities, integration opportunities, and strategic enhancements that help the organisation get the most from its CRM systems.

Some of the main areas of responsibility for the Senior Systems Developer include:

• Design, develop and maintain application and data integrations across Christian Aid’s systems using Microsoft technologies (including .NET, C#, Power Automate, SSIS and APIs).

• Maintain and improve Christian Aid’s application and integration architecture, identifying opportunities to automate processes and improve reliability, performance and data quality.

• Establish and apply standardised best practice for system and data integration across applications, using critical thinking to improve existing solutions.

• Monitor integration processes, handling errors and job failures, and implement preventative improvements.

• Investigate system and data related issues, undertake root cause analysis, and implement mitigating actions to prevent recurrence.

• Work collaboratively with internal teams and third party suppliers to resolve issues and deliver high quality integration outcomes.

• Provide technical advice and guidance to colleagues and project teams, contributing specialist expertise to system design and delivery.

• Produce and maintain appropriate technical documentation and support handover into live service when required.

About you

You’ll bring substantial hands‑on experience designing and delivering solutions using Microsoft Dynamics and the Power Platform, supported by a relevant professional qualification. You have strong expertise in Dynamics customisation and extension, data modelling, integrations and APIs, and SQL Server, alongside solid experience with modern software engineering practices such as source control, automated testing, code review, and CI/CD.

You’re comfortable taking ownership of complex work in resource‑constrained environments, improving quality and reliability, and working directly with users to translate real needs into effective solutions. You understand the long‑term impact of technical decisions and are able to balance pragmatism with sound design.

Ideally, you’ll also bring Microsoft certifications, experience working in a not‑for‑profit or mission‑driven context, and familiarity with Azure or similar cloud platforms.

Above all, you’re a collaborative and credible senior developer who communicates clearly, works effectively with suppliers and non‑technical colleagues, and influences technical decisions through expertise and judgment. You value learning and contribute positively to a culture of continuous improvement.

Please see the role profile for a detailed breakdown of the skills, knowledge and experience required for this role.

Further information

At Christian Aid we strive to be an inclusive and diverse employer and recognise the value that this brings in helping to build strong, creative and high performing teams.

We are actively encouraging racialised minorities, LGBTQ+, people with disabilities, returning parents or carers who are re-entering work after a career break, people with caring responsibilities, people from low socioeconomic backgrounds, women, and older workers to apply. This is because these groups are under-represented within our teams, especially at senior level, and we recognise and value the contributions members of these groups make to strong, creative and high performing teams.

We have a strong Christian ethos and we encourage applications from all faiths. Applicants will be expected to demonstrate an understanding of and sympathy with Christian Aid’s faith identity.

All successful candidates will require a DBS/police check appropriate to the role and location and a Counter Terrorism Sanction check as part of your clearance for commencing your role with us. We also participate in the Inter Agency Misconduct Disclosure Scheme. In line with this Scheme, we will request information as part of the referencing process from job applicants’ previous employers about any findings of sexual exploitation, sexual abuse and/or sexual harassment during employment, or incidents under investigation when the applicant left employment. By submitting an application, the job applicant confirms their understanding of these recruitment procedures.

This role requires applicants to have the right to live and work in the country where this position is based and undertake the role that you have been offered. If you are successful and we make you an offer for the role, we will be required to conduct a right to work check on your immigration status in the UK. We will contact you regarding the documentation you will need to provide to evidence this.

How to apply

To apply for this role, please go to the Christian Aid careers page through this LINK.