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Gustav Stieger, Software Developer in Newcastle, New South Wales, Australia
Gustav Stieger

Software Developer in Newcastle, New South Wales, Australia

Member since June 7, 2013
Gustav is a software engineer with 25 years of experience with all levels of software and architecture. His skills include .NET/C#, ETL (extract-transform-load), SQL (including database design), HTML, CSS, JavaScript, Windows Forms, and REST APIs. He is a creative, abstract, and theoretical thinker with the ability to turn ideas into reusable modules and solutions. He communicates extremely well and he has worked in teams of all sizes.
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Portfolio

Experience

Location

Newcastle, New South Wales, Australia

Availability

Part-time

Preferred Environment

Windows

The most amazing...

...software I've coded is a computer game written in thirty pages of pure Assembly (at age 16) and a chess program that managed to beat my former supervisor.

Employment

  • Blockchain Developer

    2017 - PRESENT
    Stratis Platform
    • Refactored the full node into separate features. Added an Azure indexer feature for use with a block explorer. Added cold staking and assisted in adding side-chains to the coin.
    Technologies: C#, .NET Core/Standard, ASP.NET, REST API, RPC, JSON, LINQ, MVC, Mono, Windows/Unix, NoSQL, Agile, GitHub, XUnit, Travis CI

  • Senior Integration Engineer

    2008 - PRESENT
    Computer Sciences Corporation
    • Designed global standards for ETL integration.
    • Created an ETL code generation tool in C# to generate code according to said standards.
    • Created stored procedures, tables, views, and triggers in MS SQL 2005/2008 and T-SQL.
    • Developed SSIS/BIDS ETL processes, including Visual Basic scripting.
    • Performed process workflow automation in BMC Atrium Orchestrator (XML- and XSLT-driven workflow engine).
    • Built a web interface for lodging of quality center defects (ASP.NET, HTML, JavaScript).
    • Built a web Interface for a person record creation approval process. (ASP.NET, C#, HTML, JavaScript, AD).
    Technologies: C#, T-SQL, SSIS, BIDS, ASP.NET, JavaScript

  • Contractor

    2007 - 2008
    Ince Pty., Ltd.
    • Developed a procurement management system (PMS) over the span of just 2.5 months.
    • Included integration with Microsoft SQL Server, T-SQL, Microsoft Outlook WebDAV (for reading emails), and CDO (for sending emails).
    Technologies: Visual C++, Visual Basic, T-SQL, VB-Script, JavaScript, HTML, ADO

  • Senior Software Engineer

    2000 - 2007
    UCS Software
    • Held a wide range of responsibilities including requirement analysis, design, coding, task allocation, technical project management, consultation, and mentorship.
    • Developed of the Retail Application Framework (RAF), used as the basis for all other development.
    • Built various business objects and user interfaces for the ActiveRetail Enterprise application (used to coordinate between the head office and branch back-office with POS).
    • Handled implementation of data distribution, data synchronization, and external application integration.
    • Developed a Windows-style interface rendering system based on XML (UI definition), HTML, and JavaScript (presentation) for which I was awarded a bonus from the company.
    Technologies: T-SQL, Visual C++, Visual Basic, ASP, JavaScript, VB Script

  • Contractor

    1998 - 2000
    Brian Hattingh Group
    • Involved in development of Hydac 4 application entailing an extensive Microsoft Visual C++ (graphical) user interface for capturing and manipulating data groups related to water-level measurements captured on a digitizing table.
    • Gained an additional year of Informix SQL/ESQL programming on the Win95 platform and C++ development.
    • Improved maintainability and reduced code duplication by wrapping procedural code and structures within C++ classes for improved re-use and better organization and robustness.
    • Inherited a stack of exception and bug reports which were eliminated in full.
    Technologies: C++, Informix SQL/ESQL

  • Specialist Programmer

    1991 - 1998
    Denel
    • Analyzed, designed, developed, and implemented information systems, which included the use of Borland C, Borland C++, Microsoft C and Microsoft Visual C++, Pascal and “80x86” Assembler.
    • Developed and maintained a PC security system (initially DOS then OS/2 and Windows platform) used throughout the South African Defence Force (SADF).
    • Redesigned the military EKKA (Personnel Vetting System) together to functional specifications.
    • Developed an inter-PC and mainframe communication system for the transfer and encryption of data using public key technology, and self-implementations of RSA (Rivest-Shamir-Adleman) and Triple-DES encryption.
    • Received the “Solum Optimum Est Optimum” award for high performance, in particular writing cures for the complex DAME and TREMOR self-encrypting computer viruses, with solutions written in a combination of C, Pascal, and “80x86” assembler and involving the running of a CPU in single-step mode during the decryption process.
    Technologies: Borland and Microsoft C/C++, Pascal, 8086 Assembler

Experience

  • Marathon Match 42 (Other amazing things)

    First place (9 points ahead) in a TopCoder competition.

  • Top 4% Machine Learning (Other amazing things)
    https://www.kaggle.com/gstieger

    Finished in the top 4% in a machine learning competition.

Skills

  • Languages

    HTML, SQL, JavaScript, C#, Visual Basic .NET (VB.NET), Stored Procedure, XML, Visual Basic, C++, C, XSLT, HTML5

  • Libraries/APIs

    WinForms, Moq, NSubstitute, LINQ, jQuery, jQuery UI, HTTP API, Active Template Library (ATL)

  • Tools

    Microsoft Visual Studio, Travis CI, xUnit, GitHub, Windows Installer, Pentaho Data Integration (Kettle), DataTables, MySQL Workbench, MATLAB

  • Paradigms

    Class-based OOP, Agile Software Development, Model View Controller (MVC), Model-driven Development, REST, Test-driven Development (TDD), Unit Testing

  • Platforms

    Windows, Microsoft, Win32, LAMP, Linux

  • Storage

    SQL Server Management Studio, Microsoft SQL Server, MySQL, Data Integration, JSON

  • Other

    Software Developer, IIS, Math, Web Services, Regular Expressions, Ajax, Machine Learning, AI Programming, Neural Networks, OAuth, Game Development

  • Frameworks

    ASP.NET Web Forms, ASP.NET MVC, WebApp, Entity, Windows Communication Framework (WCF), ActiveX, ADO.NET

  • Industry Expertise

    Web Development

Education

  • B.Sc. (Hons.) degree in Computer Science, Mathematics
    1988 - 1989
    University of the Free State - Bloemfontein, South Africa

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