Senior .NET Engineer | Legacy Systems & Reverse Engineering (Onsite)

Responsibilities

Decompile the .NET binaries and read the code; Review remaining Classic ASP pages and ASPX sources on the server; Map the database: schemas, stored procedures, SSIS packages, SQL Agent jobs, replication; Reconstruct the business logic of each module: data collection, data services, reporting, archiving, user management; Document every integration from the application side, including aviation feeds such as Type B messages and ACARS; Interview users, the administrator, finance, and the teams using the other endpoints of each interface; Write the FSD, Integration Register and Data Dictionary; Work read-only on production and report progress daily

Requirements

7+ years of .NET, with real depth in the Framework era - C# and VB.NET, ASP.NET WebForms; Hands-on reverse-engineering experience: decompiled and understood production systems with no source and no documentation; Strong SQL Server: T-SQL, stored procedures, SSIS, SQL Agent, replication; Integration experience: APIs, SFTP, file exchange and direct database links; Strong technical writing - examples of created documents will be requested; Fluent English and availability to work on-site in Cairo full-time

Nice to have

Airline systems background: Type B messages, ACARS, SSIM, Amadeus, Lido, AMOS or SAP; Arabic; Classic ASP, SSRS or Crystal Reports; Previous legacy modernisation or migration work; Comfortable working in ambiguity; Patient with people, precise with facts; Careful and discreet with sensitive data and read-only discipline on production; Honest daily and weekly reporting