Mid Level Full-Stack .Net Developer

Progressive Legal Solutions Limited; Cardiff; Hybrid; GBP 45,000 - 60,000; Full time

Job summary

Progressive Legal Solutions Limited is seeking a highly analytical Mid Level Full Stack .NET Developer to design, develop, and maintain scalable web applications with complex business logic and third‑party integrations.

The role covers backend engineering, frontend development and automation practices, including AI-assisted workflows to improve efficiency, code quality and architectural decisions.

Qualifications

• Experience designing and developing ASP.NET Core applications with C# and EF Core.
• Proficient with SQL Server, LINQ and REST/SOAP integrations.
• Ability to optimize database queries with robust logging and error handling.
• Experience with Razor Pages/MVC, jQuery, and AJAX in frontend development.

Responsibilities

• Design and maintain ASP.NET Core applications using C#
• Implement complex LINQ queries and EF Core data access patterns
• Optimise database interactions and query performance
• Build and maintain REST and SOAP integrations with external providers
• Implement robust logging, validation, and exception handling
• Manage conditional UI rendering based on business rules
• Ensure smooth client-side/server-side integration
• Translate complex business requirements into maintainable code
• Maintain separation of concerns across services and UI layers
• Improve reliability of provider communications and validation workflows

Skills

C#

.NET Core MVC

Entity Framework Core

SQL Server

LINQ

Razor Pages

MVC

jQuery

Data Tables

AJAX

SOAP

REST APIs

Logging

Performance optimization

Business rule modelling

Problem solving

Tools

REST APIs

SOAP

Job description

We are seeking a highly analytical and solutions-driven Mid Level Full Stack .NET Developer to design, develop, and maintain scalable web applications with complex business logic and third-party integrations.

This role combines backend engineering, frontend development, and intelligent automation practices that include using AI-assisted development workflows to improve efficiency, code quality, and architectural decision-making.

Key Responsibilities

• Design and maintain ASP.NET Core applications using C#
• Implement complex LINQ queries and EF Core data access patterns
• Optimise database interactions and query performance
• Build and maintain REST and SOAP integrations with external providers
• Implement robust logging, validation, and exception handling

Frontend Development

• Manage conditional UI rendering based on business rules
• Ensure smooth client-side/server-side integration

System Architecture & Business Logic

• Translate complex business requirements into maintainable code
• Maintain separation of concerns across services and UI layers
• Improve reliability of provider communications and validation workflows

Technical Skills

Core Stack

• C# / .NET Core MVC
• Entity Framework Core
• SQL Server
• LINQ

Frontend

• Razor Pages / MVC
• jQuery
• Data Tables
• AJAX

Integration & Data

• SOAP services
• REST APIs
• Logging and diagnostics
• Repository / Service patterns
• Performance optimization
• Business rule modelling
• Strong problem solver with attention to edge cases
• Detail-oriented in both backend logic and UI behaviour