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Gavrilo Olah

Erkelenz
available

Last update: 06.09.2022

Senior IT Consultant, Senior Full Stack Developer, Lead Project Developer

Graduation: not provided
Hourly-/Daily rates: show
Languages: German (Limited professional) | English (Full Professional) | Russian (Limited professional) | Croatian (Full Professional)

Keywords

Attachments

GavriloOlahCV_2021.pdf
ItilCert.pdf
GOlahDatenschutzundDatensicherheit_Jul2018.pdf
FinTechProjectList.docx

Skills

Highly experienced Software Architect / Team Leader with long time experience in agile software development and multi-layered software architecture, very good knowledge of various frameworks and a proven track record in web development projects in cooperation with well-known business partners. 
      • .NET and .NET Core, MVC, Web Forms, Web-API, C#, ASP.NET 4.7, OOP; Microservice, Repository Design Pattern, Clean code; 
      • Front End development (html, css, Angular, JS, JQuery, DevExpress, KendoUI);
      • Export/import to/from external applications;
      • Visual Studio 2013+, Git, .NET, C#; 
      • Database development – MSSQL, MySql DB + Entity Framework + T-SQL;
      • Redis, Azure
      • Technical documentation;
      • Jira, Confluence, GIT; 
      • Team Leading, Software Architecture

Project history

09/2020 - Present
Software Architect / Team Lead
Davidsmeyer & Paul GmbH Erkelenz (Internet and Information Technology, 10-50 employees)
  • Strategic project development, realisation and implementation with internal and/or external development team; 
  • Planning new projects, cost calculation, risk calculation 
  • Agile-SCRUM development 
  • Software architecture and processes analytics (UML); 
  • Business Application development; 
  • Jira project management; 
  • Reporting and documentation; 
  • Cooperation with other team-leads (project leads) in the company and in Partner’s development teams; 
  • Cooperation and communication with Integration department from the partner’s company, activities  synchronisation and common project testing; 
  • Participation in the recruitment process for the IT staff;
​​​​​​​Direct responsibility area: 
  • Software architecture, project development, costs, risks; 
  • Teamleader  - an internal software development team for the software and hardware development (APP development with.net core, hardware support code C, C++, Linux kernel); 
  • Teamleader   - external (outsourcing)  application development team; 
11/2019 - 09/2020
Senior Full Stack Developer (Lead Project Developer)
CommDoo GmbH
* Lead developer for the payment gateway - banking connector project
(Invoice-Payment und Rate-Payment)
* Lead developer for the API project - connector for online shops to
banking Invoice Payment and Rate Payment system;
* Systems analysis and modelling;
* Agile-SCRUM development
* Software architecture and processes analytics (UML);
* Business Application development;
* Inclusion junior developers in the project;
* Jira project management;
* Estimation time calculation and total cost calculation;
* Reporting and documentation;
* Responsibility for timeline and priorities;
* Sprint plan, retrospective and analytics;




?


* Cooperation with other team-leads (project leads) in the company;
* Support, IT consulting service and cooperation in other projects in the
company;
* Cooperation and communication with Integration department from the
bank, activities synchronisation and common project testing; ?
Smartphone App projects;

Direct responsibility area:

* Software architecture and development of the most important part of
the project (DB Layer, Infrastructure layer, Repository layer, etc.);
* Database development;
* Software development team 4 programmers (tasks, timeline, daily
stand-up meetings and sprint meetings);
* Inhouse IT projects;
* Customer online portal, Checking portal etc.
* Smartphone App development;

Techniques used (For the IT projects development):
* MVC, Web Forms, Web-API, C#, ASP.NET 4.7, OOP, Xamarin;
Repository; Design Pattern, Clean code;
* Front End development (html, css, Angular, JS, JQuery, DevExpress,
KendoUI;
* Export/import to/from external applications;
* Visual Studio 2017, Git, .NET, C#;
* Database development - MSSQL DB + Entity Framework + T-SQL;
* Technical documentation;
* Jira, Confluence, GIT;
01/2015 - 12/2019
Owner - IT Consultant
TOG Soft
* Managing a company;
* Product owner and Lead developer;




* IT-Consulting;
* Systems Analysis and Modelling
* Agile-SCRUM development
* Software architecture and processes analytics (UML);
* Business Application development;
* Project management with outsourcing project development teams;
* Jira project management;
* Estimation time calculation and total cost calculation;
* Reporting and documentation;
* Responsibility for timeline and priorities;
* Sprint plan, retrospective and analytics with remote development
teams;

Techniques used:
NET 4.0, 4.5, 4.6; C#, Entity Framework, WebForms, OOP, HTML(5), CSS(3),
JS, MVC, Razor, MS SQL, LINQ, Bootstrap, DevExpress, Xamarin
03/2019 - 10/2019
Group Lead - Lead Senior Developer
CANCOM GmbH
* Responsibility to project development;
* Systems analysis and modelling;
* Agile-SCRUM development
* Software architecture and processes analytics (UML)
* Business Application development;
* Inclusion new programmers in the project;
* Jira project management;
* Estimation time calculation and total cost calculation;
* Reporting and documentation;
* Responsibility for timeline and priorities




* Sprint plan, retrospective and analytics;
* Cooperation with other team-leads (project leads) in the company;
* Support, IT consulting service and cooperation in other projects in the
company;
* Version Control (Smart-Git)

Direct responsibility area:
* Software architecture and development of the most important part of
the project (DB Layer, Infrastructure layer, Repository layer, etc.);
* Database development;
* Software team 3-5 programmers (depend on priority), tasks, timeline,
daily stand up meetings and sprint meetings;
* CMS, complex web application, in-house web application;
* MVC, Web-API (Standard and OData), C#, ASP.NET 4.7, OOP;
* Repository Design Pattern, Clean code, OOP;
* Front End development (html, CSS, Angular, JS, JQuery, DevExpress,
KendoUI);
* export/import to/from external applications;
* Visual Studio 2017, Git, .NET, C#;
* Database development - MSSQL DB + Entity Framework;
* Technical documentation;
* YouTrack project and tasking management system;
11/2018 - 03/2019
Full stack Senior Developer
CANCOM Pironet AG & Co. KG
* Web application development (Agile SCRUM);
* Software architecture and processes analytics (UML)
* Business Application development (Grids, Reports, GUI etc.)
* Responsive design - bootstrap technology;
* Front End development - responsive design, Bootstrap, HTML5, CSS3,
JS, jQuery framework;
* Angular Application development;
Kendo UI - Front End Framework;
* DevExpress - Front End Framework;
* Integration with external data-sources with export and import data
(API and OData Controllers);
* Back End development: MVC, WebApi (Standard and OData),C#,
ASP.NET 4.7,
* OOP;
* SignarR - real time programming;
* Visual Studio 2017, Git, .NET, C#;




?


* Database development - MSSQL DB,
* T- SQL and Entity Framework;
* Technical documentation;
* YouTrack project and tasking management system;

Techniques used:
NET 4.7; C#, MVC, Entity Framework, OOP, HTML(5), CSS(3), JS, jQuery,
Angular, MS SQL, LINQ, Bootstrap, DevExpress, Kendo UI;
06/2017 - 01/2019
CIO/CTO, Software Engineer and Senior developer
Yosolis Full Travel Solutions
* IT project development including System analysis and modelling for
the multilayer solution architecture;
* Core Project development (basic back end development);
* Internal booking system;
* WEB-API project (REST-Full service, API Key authentication, IP-White
List) - Export data to external partners and users (GDS and portals:
TripAdvisor, Travelopo, BookingCom, Novasol etc.)
* Front End MVC Web Application;
* MVC Hybrid Mobile application;
* Multiuser admin application (registration, authentication, GUI);
* White Label project
* BackOffice application for travel agencies (CRM, finance, reports,
analytics etc)
* Visual Studio 2017, ASP .NET, C#;
* Database development - MSSQL DB, Classic SQL Connection and
EntityFramework;
* Back End development C#, WebApi (C#, ASP.NET 4.7, OOP);
* Front End and GUI development, MVC, (Bootstrap) HTML5, CSS3, JS (
JS function and program code without framework) and jQuery
Framework, DevExpress
* Microsoft Azure;
* SignarR - real time programming;
* Technical documentation;
* Git;

Techniques used:
NET 4.7; C#, Entity Framework, OOP, HTML(5), CSS(3), JS, MVC, Web API,
MS SQL, LINQ, Bootstrap, DevExpress, jQuery, SignalR
06/2017 - 10/2018
Software Engineer and Senior Web application developer
Artner EDV
(Lead developer)
* Web application development - Agile SCRUM (development of
document management system);
* Visual Studio 2017, TFS, .NET, C#;
* Responsive design - bootstrap technology;
* Database development - MSSQL DB, Classic SQL Connection and
EntityFramework;
* Back End development WebForms, WebApi (C#, ASP.NET 4.7, OOP);
* Front End and GUI development (Bootstrap) HTML5, CSS3, JS ( JS -
* function and program code without framework) and jQuery
Framework;
* DevExpress Framework: UI Controls - Web, Mobile and Desktop;
* SignarR - real time programming;
* DocuVieware - Powerful Imaging and PDF SDK (ORPALIS -
GDPicture.NET)
* System analytics;
* Development of new error processing system including integration
with JIRA tasking system;
* Technical documentation;
* JIRA project and tasking management system;

Techniques used:
NET 4.7; C#, Entity Framework, WebForms, OOP, HTML(5), CSS(3), JS, MVC,
MS SQL, LINQ, Bootstrap, DevExpress, GdPictures, DocuVieware, SignalR
09/2016 - 03/2017
CTO
MATicker
from EU to Africans countries);
01/2010 - 01/2015
Owner, CEO and Software Engineer
Nova Soft Doo
* Managing a company;
* IT-Consulting;
* Product owner and Lead developer;
* Agile-SCRUM development
* Software architecture and processes analytics (UML);
* Business Application development;
* Project management with outsourcing project development;
* Web design (.NET 3.5, 4.0 and 4.5; C#; HTML; CSS; JS)
* Desktop application development (.NET 4.0 and 4.5; C# and MSSQL)

Techniques used:
.NET 3.5, 4.0, 4.5; C#,MVC, Razor, Entity Framework ,OOP, HTML(5),
CSS(3),
JS, MSSQL, LINQ, Bootstrap
01/2009 - 01/2010
Web and desktop application developer
KMK Group DOO
* Desktop application development (.NET 3.5, C# and MSSQL)
* Website Development - back end(.NET 3.5, C#)
* Website Development - front end (HTML, CSS, JS, C#);
* Control of work and adaptation to different search engines;




?


Control of all elements of the website that are needed for SEO (meta
tags, H tags, image properties, control the relevance of the content of
the website);

Techniques used:
.NET 3.5, C#, HTML, CSS, JS, MSSQL
01/2006 - 01/2009
Freelancer
Web design Projects (Mid-Level programmer)
* Development of CMS Applications (WordPress, Joomla etc.)
* Development of business applications - custom application
development;
* Leased several business hosting packages on Windows and Linux
platforms.
* Good knowledge of Plesk Panel, cPanel;
* Adding domains, subdomains, email accounts, creating databases,
exporting, importing data, backup;

Techniques used:
C#, MS Access, VBA, HTML, CSS, JS, MSSQL, MySQL;
01/2000 - 01/2006
Freelancer (Junior/ Mid-Level programmer)
* Desktop application development;
* Development of business applications;
* Small / Middle financial and accounting software
* Setting up security camera system and integration to existing computer
network, ? Computer network; Techniques used:
MS Access, VBA, DOS
01/1994 - 01/2000
First assistant head of logistic
Airport "Batajnica"
* Electronic data processing
* System analysis and technical documentation for information system of logistic
* Development information systems in transport department
* Responsibility for computers and computer network in logistic department.

Local Availability

Only available in these countries: Germany
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