Erik Mostert

Experience

1. Senior Software Developer — R&R WFM

   Mar 2023 – Present
   • Initially on secondment via Summit Developers; converted to a permanent position in Oct 2023.
   • Migrated .NET Framework components to modern .NET, reducing technical debt wherever possible.
   • Maintain both legacy .NET Framework systems and modern .NET applications within the workforce management system.
   • Build, maintain and debug integrations with external HR providers including AFAS, NMBRS and HRLabs (Germany).
   • Build, maintain and debug HR and Absence Registration functionality for employees within the workforce management system.
   • Apply microservices experience from previous roles across a differing tech stack.

2. Senior Software Developer — iOCO (EOH)

   Feb 2018 – Dec 2022
   • Converted archaic paper-based recruitment processes to digital format, including UI, back-end, and integration with existing systems.
   • Ensured delivery team members adhered to coding standards and proper source control practices.
   • Developed a service-oriented debt collection system, a consultant recruitment system, and product augmentation using NUnit, Moq, C#, .NET Core 2.1-3.1, .NET 5 & 6, Bootstrap, jQuery, JavaScript and SQL.
   • Managed product releases to production.
   • Led a team focused on addressing technical debt across various systems.

3. Intermediate Developer — iOCO (EOH)

   Nov 2017 – Feb 2018
   • Re-wrote customers' legacy Delphi 3 systems for manufacturing and warehousing to MVC using NUnit, Moq, C#, .NET Framework 4.6-4.7, JavaScript, jQuery, SQL and ZPL (Zebra Programming Language).
   • Analysed and developed proof-of-concept applications for product scanning using MVC and Xamarin.

4. Programmer Analyst — Media24

   Feb 2017 – Oct 2017
   • Developed a customer integration using Java.
   • Re-wrote a legacy Java integration platform using .NET Framework, C#, SQL, MVC & JavaScript.
   • Designed, developed and implemented a centralized user management system using .NET Framework, C#, SQL, MVC & JavaScript.
   • Implemented Team Foundation Server (TFS) for source control.

5. Application Support Specialist and Programmer — Media24

   2009 – 2017
   • Re-wrote the integration between the e-Commerce user interface and an AS400 warehouse management system, using VB.NET.
   • Provided first- and second-level support for various business applications, including Microsoft applications, IBM products and custom applications.
   • Developed customized solutions and applications to manage and support business processes using VB.NET, VBScript, SQL, and IPL (Intermec Programming Language).
   • Process automation.

6. IT Supervisor / Support Technician; earlier, Process Operator — Imaging Data Solutions / ISCOR (Mittal Steel SA)

   1998 – 2009
   • IT Supervisor / Support Technician, Imaging Data Solutions (2004-2009).
   • Process Operator, ISCOR / Mittal Steel SA (1998-2002).

Skills

Education

• BSc IT (Software Engineering) — Summa Cum Laude

  Eduvos

  2026

• Matric (Grade 12)

  Drostdy Technical High School

  1997

Certifications

• Microsoft Certified: Azure AI Cloud Developer Associate — Microsoft2026
• Microsoft Certified: Azure Fundamentals — Microsoft2022
• Microsoft Certified Solutions Developer (MCSD): Web Applications — Microsoft2019
• Microsoft Certified Solutions Associate (MCSA): Web Applications — Microsoft2019
• CompTIA A+ — CompTIA2022