Senior Software/Applications Developer
Location: Cheltenham (Hybrid)
Salary: £65k
As a Senior Developer, you will play a key role in supporting, maintaining, and evolving our core business systems and integrations. Working within the Business Systems team, you will deliver reliable, scalable solutions that support day-to-day operations, improve user experience, and enable business growth.
This is a hands-on, varied role combining development, database optimisation, and systems integration. You will collaborate closely with stakeholders across the business, contributing to both new initiatives and continuous improvement of existing platforms.
Your responsibilities as a Senior Developer will be:
Develop, maintain, and enhance business applications, integrations, and internal systems, ensuring solutions are scalable, reliable, and user-focused.
Work closely with stakeholders to understand requirements, provide technical guidance, and deliver pragmatic solutions aligned to business needs.
Support and improve existing systems by troubleshooting issues, optimising performance, and enhancing usability and stability.
Design and deliver system integrations (APIs, middleware, data exchange), ensuring robustness, security, and effective data flow between platforms.
Take ownership of database performance, including schema design, query optimisation, indexing strategies, and data integrity.
Manage and support data processes such as imports, exports, transformation, and reconciliation across multiple systems.
Contribute across the full development lifecycle, including design, development, testing, deployment, and ongoing support.
Support release management, version control, and deployment processes to ensure controlled and stable system changes.
Collaborate with internal teams and third-party suppliers to ensure systems and integrations operate effectively.
Contribute to continuous improvement by modernising legacy systems and adopting best practice development approaches.
Explore and implement opportunities to leverage AI and automation technologies to improve system efficiency, data usage and business processes, ensuring solutions are practical, secure and aligned with business needs.
About you:
You will have strong experience in software development using Microsoft technologies (C#, .NET, SQL Server).
Solid understanding of the full development lifecycle, including support and continuous improvement.
Proven expertise in SQL Server, including performance tuning, database design, and query optimisation.
Experience with integrations, APIs, middleware (e.g. Connex or similar), and data flows (ETL, transformation, mapping).
Ability to troubleshoot complex system and data issues across interconnected platforms.
ECS Recruitment Group Ltd is acting as an Employment Agency in relation to this vacancy.
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