Senior Dotnet Developer

Technical Expert – C# / .NET / MSSQL (12‑month Onsite Mission)

Mission Overview

Key Skills Required

Strong expertise in MSSQL and software quality assurance

Fluent English, with good command of French

Solid understanding of IT systems and operational environments

Proven experience in:

Quality Analysis

Testing

Management

Engineering or quality assurance

Banking/financial industry experience is a plus Technical proficiency in:

C# / .NET

SQL

Azure

Event‑driven architectures

Mission Outline (indicative, non‑exhaustive)

Analyze and optimize existing C# / SQL codebase

Implement updates to business rules, including:

Creation and evolution of SQL Views

Advanced transactional filtering

Optimize calculation pipelines for improved system performance

Redesign parts of data-processing flows to meet external constraints

Collaborate with payment teams to ensure technical compliance

Integrate and optimize Azure Cosmos DB:

Optimized query implementation

Partitioning strategy management

Develop automated reporting modules (SQL Server Reporting / scripts)

Conduct SQL performance optimization: query tuning, indexing, execution plan analysis

Technologies Involved

✔ C# .NET Core

✔ MS SQL Server

✔ SQL Views

✔ TSYS Payment Partner Integration

✔ Blazor

✔ Azure Cosmos DB

✔ Event‑Driven Architecture

✔ Visual Studio 2022

✔ SSIS

✔ Stored Procedures

✔ SQL Server Reporting

✔ C# Utility Scripts