https://jobs.co.uk/job/c-senior-software-developer-adria-solutions--65f45399-4eb4-47bb-a1f2-e7a9aa4ff10b RSS feed for C# Senior Software Developer at Adria Solutions. en-gb Wed, 29 Apr 2026 16:14:09 GMT https://jobs.co.uk/job/c-senior-software-developer-adria-solutions--65f45399-4eb4-47bb-a1f2-e7a9aa4ff10b https://jobs.co.uk/job/c-senior-software-developer-adria-solutions--65f45399-4eb4-47bb-a1f2-e7a9aa4ff10b Tue, 28 Apr 2026 11:53:27 GMT Location: Preston | Salary: 50000.00-50000.00 Annual | Type: Permanent | C# Senior Software Developer - Onsite My client is seeking a talented C# Senior Software Developer to join their Preston-based team. This role offers an exciting opportunity to lead projects, mentor junior developers, and work on high-impact, secure banking solutions. You will be a key contributor to web portal and API development, ensuring performance, security, and reliability in a dynamic environment.This role is ideal for developers with strong technical expertise who are looking to grow into leadership or team management responsibilities. Key Responsibilities Develop and maintain web portals using ASP.NET MVC / .NET CoreDesign and integrate REST APIs with internal and third-party servicesImplement secure authentication mechanisms (JWT, OAuth2, API Keys)Connect applications to relational databases using Entity Framework Core (DbContext, LINQ, Migrations)Debug and trace request flows from UI Controller API Database ResponseMaintain and publish API documentation via Swagger / OpenAPIEnsure API security, reliability, and performance (error handling, retry logic, logging, timeouts, CORS)Collaborate with database, infrastructure, and QA teams for portal and API releasesParticipate i... Permanent