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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Backend Developer - **Company:** MCS Group - **Location:** Belfast, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Business Software, Microsoft Dynamics, Systems Architecture, Systems Integration, Working Model 2D, Software Organization, Software Application Programming, Backend, Restful APIs, Legacy Systems, Web Api - **Published:** August 26, 2026 - **Apply:** https://www.collegerecruiter.com/job/2815170886-backend-developer ## About the Role * 4+ years commercial experience developing applications using C# and .NET * Experience building and consuming RESTful APIs and system integrations * Knowledge of both modern .NET technologies and traditional Microsoft development environments * Strong understanding of software development best practices * Excellent communication and stakeholder management skills * Ability to work closely with clients and translate business requirements into technical solutions * Experience with Microsoft Dynamics integrations would be advantageous * Previous exposure to finance systems would be beneficial but is not essential, This is an excellent opportunity for a Senior Backend Developer with strong C# and .NET experience to join a growing engineering team, working on a major finance integration project before contributing to the continued evolution of a large-scale business platform. ## Description Senior Backend Developer (.NET) Belfast - Hybrid (3 Days Office / 2 Days Home) Competitive Salary + Excellent Benefits The Opportunity MCS Group are delighted to be partnering with a leading technology organisation as they seek to appoint a Senior Backend Developer to join their engineering team. This is an exciting opportunity to join a well-established software business delivering solutions for a large international client. The successful candidate will play a key role in the delivery of a major finance systems integration project before moving on to support the continued development and enhancement of a wider business-critical platform. Working within a small, highly collaborative team, this role offers the opportunity to combine strong technical expertise with regular stakeholder engagement, making it ideal for an engineer who enjoys both hands-on development and client interaction. The Role As a Senior Backend Developer, you will join a dedicated development team responsible for delivering backend solutions and integrations across a complex business platform. Your initial focus will be on a major finance project involving the integration of a new Microsoft Dynamics platform with existing back-office systems. Following project delivery, you will continue contributing to the development and enhancement of the wider platform ecosystem. Responsibilities will include: * Designing and developing backend solutions using C# and .NET technologies * Building and maintaining Web API integrations between business-critical systems * Supporting the integration of Microsoft Dynamics with existing platforms * Enhancing and maintaining existing back-office applications * Working across both modern .NET technologies and legacy systems where required * Participating in technical design discussions and solution planning * Collaborating closely with internal teams and external stakeholders * Acting as a technical point of contact during project delivery * Contributing to ongoing improvements across development processes and systems architecture What You Need * 4+ years commercial experience developing applications using C# and .NET * Experience building and consuming RESTful APIs and system integrations * Knowledge of both modern .NET technologies and traditional Microsoft development environments * Strong understanding of software development best practices * Excellent communication and stakeholder management skills * Ability to work closely with clients and translate business requirements into technical solutions * Experience with Microsoft Dynamics integrations would be advantageous * Previous exposure to finance systems would be beneficial but is not essential Package & Benefits * Competitive salary * Flexibility for exceptional candidates * Hybrid working model * Exposure to large-scale international projects * Opportunity to work closely with end clients and key stakeholders * Collaborative and supportive engineering environment * Ongoing learning and career development opportunities This is an excellent opportunity for a Senior Backend Developer with strong C# and .NET experience to join a growing engineering team, working on a major finance integration project before contributing to the continued evolution of a large-scale business platform. We are committed to providing reasonable accommodation to individuals with disabilities throughout the recruitment process. 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