.NET developer

Wiser Technology designs, builds, and scales complex software systems that power real-world impact. With 500+ engineers and over 25 years of experience in mission-critical environments, we help global organizations turn ambitious ideas into working solutions. Across Europe, MENA, and North America, we combine deep engineering expertise with AI and data to support leading companies in aerospace & defense, automotive, telecom & media, IT, and financial services. WHAT YOU WILL DO: At least three years of commercial experience in C# and .NET Hands-on experience with both .NET Framework (4.x) and modern .NET (8+), and an understanding of what changes when you move code between them Strong SQL skills with SQL Server: writing and reading stored procedures, T-SQL, indexes, transactions and locking Experience with ADO.NET data access (SqlClient, DataSets, parameterised queries), not only Entity Framework Experience building and consuming web services, both SOAP/WCF and RESTful APIs in ASP.NET Core Web API Experience with background processing: Windows Services, scheduled jobs or workers, and the concurrency problems they bring (multiple instances, idempotency) Solid object-oriented design and familiarity with Dependency Injection and async patterns Ability to write unit-testable code, and experience writing unit and integration tests (xUnit/NUnit/MSTest) Working knowledge of Git and pull-request-based workflows Experience using AI coding assistants (GitHub Copilot, Claude Code or similar), and the discipline to review and verify what they produce NICE TO HAVE: PostgreSQL experience, especially migrating schema or T-SQL from SQL Server to PostgreSQL Microsoft Azure: App Service, Azure Functions, Key Vault, managed identity, Azure Database for PostgreSQL Setting up CI/CD pipelines (GitHub Actions or Azure DevOps) with build and test gates Characterization, regression, or contract testing on legacy systems Multi-tenant application design, row-level security, or role-based access control Some exposure to WPF/XAML or a modern web front end (React, Angular) Experience in transport, logistics, or other operational/ERP domains           SOFT SKILLS & ATTRIBUTES : Fluent English, spoken and written. You will work daily with the client's UK-based team Comfortable reading and changing large, unfamiliar legacy code without rewriting what already works Careful and methodical with production data, credentials and anything security-related Able to follow a specification, and to raise it when the code tells a different story from the spec Works well inside a mixed Wiser and client team and communicates progress and blockers early Willing to learn and share knowledge within the team WHAT'S IN IT FOR YOU? Culture & Development: Friendly Environment: We take pride in our culture and love spending time together. Team Spirit: Be part of a supportive team that uplifts each…