At a Glance
- Tasks: Lead projects and mentor junior developers in creating secure banking solutions.
- Company: Join a pioneering fintech company focused on innovative technology.
- Benefits: Competitive salary, supportive environment, and opportunities for leadership growth.
- Other info: Dynamic team culture with a focus on collaboration and technical excellence.
- Why this job: Make a real impact in high-security software projects while advancing your career.
- Qualifications: Strong C# development skills and experience with web APIs and databases.
The predicted salary is between 55000 - 70000 £ per year.
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 Core
- Design and integrate REST APIs with internal and third-party services
- Connect applications to relational databases using Entity Framework Core (Db Context, LINQ, Migrations)
- Maintain and publish API documentation via Swagger / Open API
- 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
- ASP. NET MVC or . NET Core Web API
- Entity Framework Core (Db Context, Db Set, On Model Creating, LINQ) and ADO. NET/Raw SQL experience
- MS SQL Server or My SQL database experience
- REST API expertise and integration (Http Client, Rest Sharp, JSON serialization/deserialization, CORS, HTTPS, API security)
- Git version control and CI/CD workflows (Azure Dev Ops, Git Lab CI preferred)
- Hosting experience with IIS or Kestrel
- Docker basics (preferred but not mandatory)
- Preferred/Bonus Skills
- Experience with fintech or payments API integration
- 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
- #J-18808-Ljbffr
We think you need these skills to ace C# Senior Software Developer - Onsite in Preston
C#
ASP.NET MVC
.NET Core
REST API Development
Entity Framework Core
LINQ
MS SQL Server
