C# Software Engineer

C# Developer – Financial Services Location: Cheshire (2 days per week onsite – mandatory) Rate: £500 per day (Inside IR35) Duration: Initial 12-month contract (extensions likely) Atrium EMEA are supporting a world-leading IT services client in their search for an experienced C# Developer to join a major financial services programme based in Cheshire. This role will suit an established C# Developer with strong recent experience working within enterprise-level banking or financial services organisations. You will be responsible for supporting, maintaining, and enhancing a suite of existing custom-built applications, whilst working closely with stakeholders to deliver ongoing improvements and technical solutions. Candidates must be based within a commutable distance of Cheshire and willing to attend the office two days per week. Applications from candidates outside the local area will not be considered. Key Responsibilities • Support, maintain, and enhance existing custom-built C# applications. • Design, develop, and implement new features and functionality. • Troubleshoot application issues and provide ongoing production support. • Investigate and analyse API outputs and integration requirements. • Assess the feasibility of API-based data extraction and integration solutions. • Develop and optimise SQL queries, stored procedures, and database solutions. • Utilise Python for automation, scripting, and data-related tasks where required. • Work closely with business and technical stakeholders to understand requirements and deliver solutions. • Produce and maintain technical documentation. • Contribute to continuous improvement initiatives and application lifecycle management. Required Experience • Strong commercial experience developing applications using C#. • Advanced SQL development and database experience. • Commercial experience with Python. • Experience supporting and enhancing existing enterprise applications. • Experience working with APIs, integrations, and data extraction solutions. • Strong problem-solving and technical troubleshooting skills. • Experience working within Agile delivery environments. • Excellent communication and stakeholder management skills. • Recent experience working within a banking or financial services environment. Essential Requirements • Recent banking or financial services experience. • Experience working within enterprise-scale environments. • Strong C#, SQL, and Python capabilities. • Ability to work independently and take ownership of existing applications. • Ability to commute to Cheshire two days per week. • Candidates must already be based within a commutable distance of Cheshire. Relocators will not be considered. Please note: Only candidates with recent financial services experience and the ability to attend the Cheshire office twice per week will be considered. These requirements are mandatory.