Job Detail

C# Senior Software Developer

Web Development Full–time
ID: #12983
Posted: 2026-03-17
Salary

Description

C# Senior Software Developer My client is seeking a talented C# Senior Softwar 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 Core • Design and integrate REST APIs with internal and third-party services • Implement 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 ? Response • Maintain and publish API documentation via Swagger / OpenAPI • Ensure API security, reliability, and performance (error handling, retry logic, logging, timeouts, CORS) • Collaborate with database, infrastructure, and QA teams for portal and API releases • Participate in code reviews, version control, and CI/CD deployment workflows Required Technical Skills • C# (strong proficiency) • ASP.NET MVC or .NET Core Web API • MVC concepts: Routing, Controllers, Filters, Middleware, Model Binding, Dependency Injection • Entity Framework Core (DbContext, DbSet, OnModelCreating, LINQ) and ADO.NET/Raw SQL experience • MS SQL Server or MySQL database experience • HTML5, CSS3, JavaScript • REST API expertise and integration (HttpClient, RestSharp, JSON serialization/deserialization, CORS, HTTPS, API security) • Git version control and CI/CD workflows (Azure DevOps, GitLab CI preferred) • Hosting experience with IIS or Kestrel • Docker basics (preferred but not mandatory) Preferred/Bonus Skills • Experience with fintech or payments API integration • Cloud services (Azure, AWS) hosting basics • Webhooks and event-based APIs • Structured logging tools (Splunk, ELK, App Insights) • Performance optimization and API rate-handling Why Join My Client • Be part of a pioneering fintech/secure banking technology company • Opportunity to mentor and lead junior developers • Work in a supportive, collaborative, and technically driven environment • Gain experience in high-security, mission-critical software projects Interested? Please Click Apply Now!C# Senior Software Developer

Hard Skills 9
Skill Source Confidence
HTML llm_hard
100%
CSS llm_hard
100%
JavaScript llm_hard
100%
Git llm_hard
100%
RESTful APIs llm_hard
100%
API Integration llm_hard
100%
CI/CD llm_hard
100%
AWS (Amazon Web Services) llm_hard
80%
Azure (Microsoft) llm_hard
80%
Soft Skills 12
Skill Source Confidence
Problem-Solving llm_soft
100%
Critical Thinking llm_soft
100%
Analytical Thinking llm_soft
100%
Mentoring llm_soft
100%
Collaboration llm_soft
100%
Documentation llm_soft
100%
Self-Management llm_soft
80%
Team Leadership llm_soft
80%
Cross-Team Collaboration llm_soft
80%
Adaptability llm_soft
80%
Time Management llm_soft
80%
Technical Writing llm_soft
80%
Apply Options
Publisher Direct Link
Totaljobs Yes Apply
The Times Appointments No Apply
Jobs For Stevenage Fans No Apply
SaluteMyJob No Apply
Talents By StudySmarter No Apply
Edinburgh City Jobs No Apply
KSNT Jobs No Apply
KGET Jobs No Apply
Totaljobs No Apply
API Logs for this Job
Query Country Status Response ms Created
C# Senior Software Developer extracted 5384 2026-03-22 03:29
C# Senior Software Developer classified 555 2026-03-21 21:22
junior software engineer in Manchester gb duplicate 12987 2026-03-21 17:33
junior software developer in Manchester gb processed 18148 2026-03-21 17:27
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  "job_description": "C# Senior Software Developer\n\nMy client is seeking a talented C# Senior Softwar 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.\n\nThis role is ideal for developers with strong technical expertise who are looking to grow into leadership or team management responsibilities.\nKey Responsibilities\n• Develop and maintain web portals using ASP.NET MVC / .NET Core\n• Design and integrate REST APIs with internal and third-party services\n• Implement secure authentication mechanisms (JWT, OAuth2, API Keys)\n• Connect applications to relational databases using Entity Framework Core (DbContext, LINQ, Migrations)\n• Debug and trace request flows from UI ? Controller ? API ? Database ? Response\n• Maintain and publish API documentation via Swagger / OpenAPI\n• Ensure API security, reliability, and performance (error handling, retry logic, logging, timeouts, CORS)\n• Collaborate with database, infrastructure, and QA teams for portal and API releases\n• Participate in code reviews, version control, and CI/CD deployment workflows\n\nRequired Technical Skills\n• C# (strong proficiency)\n• ASP.NET MVC or .NET Core Web API\n• MVC concepts: Routing, Controllers, Filters, Middleware, Model Binding, Dependency Injection\n• Entity Framework Core (DbContext, DbSet, OnModelCreating, LINQ) and ADO.NET/Raw SQL experience\n• MS SQL Server or MySQL database experience\n• HTML5, CSS3, JavaScript\n• REST API expertise and integration (HttpClient, RestSharp, JSON serialization/deserialization, CORS, HTTPS, API security)\n• Git version control and CI/CD workflows (Azure DevOps, GitLab CI preferred)\n• Hosting experience with IIS or Kestrel\n• Docker basics (preferred but not mandatory)\n\nPreferred/Bonus Skills\n• Experience with fintech or payments API integration\n• Cloud services (Azure, AWS) hosting basics\n• Webhooks and event-based APIs\n• Structured logging tools (Splunk, ELK, App Insights)\n• Performance optimization and API rate-handling\n\nWhy Join My Client\n• Be part of a pioneering fintech/secure banking technology company\n• Opportunity to mentor and lead junior developers\n• Work in a supportive, collaborative, and technically driven environment\n• Gain experience in high-security, mission-critical software projects\n\nInterested? Please Click Apply Now!C# Senior Software Developer",
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