08.11.2025 aktualisiert

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40 % verfügbar

Senior Software Architect, Senior Software Engineer, .NET Developer

Apeldoorn, Niederlande Courseware development, Pedagogische Academie
Apeldoorn, Niederlande Courseware development, Pedagogische Academie

Profilanlagen

CV Martin Holler NL 2025-02.pdf
CV Martin Holler DE 2025-02.pdf
CV Martin Holler EN 2025-02.pdf
PO Martin Holler DE 2025-02.pdf
PO Martin Holler NL 2025-02.pdf
PO Martin Holler EN 2025-02.pdf

Skills

Web InterfacesAsp.NetC (Programmiersprache)Javascript.Net FrameworkAPIsAnwendungssicherheitHtml5C#C++KommunikationsprotokolleDatenbankenDateisystemeElektronischer DatenaustauschMiddlewareEmbedded SoftwareFoxproIISWeb-PortaleJsonMicrosoft SdkMicrosoft Sql-ServerRfidPayment GatewaySoftware ArchitectureSicherheitssoftwareSOAPTool Command LanguageTransact-SqlVirtual TerminalWeb ApplikationenWeb ServicesExtensible Markup LanguageTransaktionsverarbeitung (Datenverarbeitung)DevexpressBackendVerifoneApi-GatewayRestful Apis
.NET, Ansi-C, ASP.NET, API, APIs, Backend, C#, C# .NET, C / C++, communication protocols, databases, DevExpress, Embedded software, interfaces, gateways, EDI, XML, file processing, EMV, NFC, Foxpro, HTML5, IIS, JSON, JavaScript, Jira, Git, SQL-Server, MS-SQL, Windows, Microsoft platform, middleware, system monitoring, security software, REST, SOAP, software architecture, TCL, Transact-SQL, T-SQL, transaction processing, Verifone, virtual terminal, web Apps, web applications, web portals, Web services, RFID, NFC

Sprachen

GermangutEnglishgutDutchMuttersprache

Projekthistorie

Senior Software Engineer (Freelance)

CelTom Software

Internet und Informationstechnologie

< 10 Mitarbeiter

Software Architect

ICP Companies BV
* Creation of a generic communication and switching platform for
o Terminals
o Cash-registers
o Web-shops
o Portals
o Hosts (Host-to-Host)
o Mobiles and tablets
* Creation of the transactions processing system (Mimas) for
o Giftcards (Closed Loop and Third Party POSA products)
o Loyalty-, Discount- and Employee- cards
o TopUp, Vouchers, Direct, Credit, Internet Vouchers (POD and POR)
o Ticketing and coupons
o In-lane Lottery and game cards
o SIM card activation (EID validation, OCSP responder)
o Payment (cards, contactless and mobile) and PSP
o Promo's and virtual cards (QR)
o Digital (cash-register) tickets
* Setup architecture and databases for the Mimas system
* Development of maintenance web-portal
* Development of virtual web-terminal
* Development of PIN-Server system
* Development of fleet card authorization system
* Create technical documentation and manuals
* Development of invoicing system (EDI, DES-ADV)

* Development of terminal plug-in components for cash-registers
* Development of reporting system
* Train developers
* Development of system monitoring system
* Development of CTAP embedded terminal and host functions

Senior Software Engineer

Intersolve Hoevelaken
* Maintenance of existing loyalty, giftcard, coupon, voucher terminal
* Development of card generation application
* Development of file processing (import/export) application
* Development of service adaptors for online switching platform
* Functional design and manuals for loyalty and giftcard system
* Create migration plan for large loyalty system (Caribbean Islands)
* Development of mailing service adaptor
* Development of online OV-chip card (railway) switching system
* Internal and acceptance testing of terminal and web applications
* Maintenance of existing COM layer

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