Profileimage by Steit Slings CTO / Scrum Master / Agile coach from Koeln

Steit Slings

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Last update: 12.03.2024

CTO / Scrum Master / Agile coach

Company: World Communication
Graduation: not provided
Hourly-/Daily rates: show
Languages: German (Full Professional) | English (Full Professional) | French (Elementary) | Dutch (Native or Bilingual)

Attachments

Resume-Steit-Slings_120324.pdf

Skills

Scrum, Agile, Blockchain, Start-ups, backup, AWS, Cloud, Docker, Serverless, MQ, MySQL, MongoDB, DynamoDB, EC2, ECS, SQS, PHP, Node.js, Angular, HTML, API, HTML5, Scrum, Scrum/Agile, Jira, user stories, webshop, Android, bug fixing, webshop application / framework, Logitech, shell, frontend, backend, Open Source, Linux, MS-SQL, GPRS, scalability, CMS, encoding, DVB, broadcast, UMTS, J2EE, Tomcat, broadcasters,

Project history

04/2022 - Present
Agile Master / Ticket Master
Cariad (Automotive and vehicle construction, 1000-5000 employees)


09/2020 - 12/2021
Scrum master / Agile coach
CrowdFox (10-50 employees)

Implementation of Scrum and project based development for the development team. Setting up of procedures, meetings and workflow in Jira & Atlassian. Teambuilding.

08/2019 - 03/2020
Interim CIO
myEGO2GO

Berlin Area, Germany
Helping to set up structure and processes for this exciting new Start-Up. Getting grip on your data
and supply a verified login for third parties. Encrypted decentralised storage of personal data,
keep your info secure and save on your phone with an encrypted backup in our blockchain. You decide
who sees what data.

09/2017 - 08/2019
CTO
Sapaso

Cologne Area, Germany
Further professionalising of the platform, team and processes to sustain growth for this exciting
FinTech start-up. Sapaso provides payment services for subscription based products. 100% payment
guarantee. No bank costs, No Charge-backs. More time.
* Buidling of a remote team of 7 developers
* Setup of AWS environments
* Managing development team, product, sysop
* Support to OPS
* Plannings
* Setup of procedures
Techstak: Cloud, Docker, AWS, Serverless, MQ, MySQL, Aurora, MongoDB, DynamoDB, EC2, ECS, SQS, PHP,
Node.js, Angular, HTML, API

07/2017 - 09/2017
Interim CTO
Sapaso

Spain - remote
Assistance in defining an API based solution for the growing community of EDUopinions. I worked
together with 2 remote developers to create the base for the opinions platform.
Tech Stack: PHP, API, MySQL, HTML5, Angular

*Wigi.nl

04/2016 - 06/2017
CTO
s'Hertogenbosch

s'Hertogenbosch, the Netherlands
Managing an external team for the prototype. Building and managing an internal team of now 10
developers that build a hospitality wholesale platform where buyers, suppliers and wholesale are
linked and see their sales numbers.
Activities:
Managing local and offshore team. Planning & tracking progress of the development. Creation of
functional and technical designs. Coaching the Jr. developers. Hands on bugfixing, Sample code
writing. Code reviews. Hosting 2 daily Scrum meeting (NL & SL team). Host and prepare Sprint
planning & meetings. (defacto Scrum-master)
Translation of business requests to technical design. Consult with product owner. MT Meeting (as MT
member). Oversee testing.
Technology:
Scrum/Agile in a HTML5/Angular environment. Docker, Frameworks, Jira,Cloud, AWS,

03/2015 - 03/2016
Technical Architect / Software Architect
Bax

Goes, the Netherlands
Bax-Shop has grown considerably over the last years. I have optimised back-end processes, system
integration and performance to the existing and new shop systems to maintain the high standard of
customer
Activities:
Technical architecture, Development, Design structure creation, Team Lead. Translate business
requirements to technical design. Creation of user stories. Automated testing framework. Scrum
member

12/2014 - 03/2015
Technical Architect
Blast Radius

Amsterdam Area, the Netherlands
Technical Architect for the product launch of Michelin's new Cross-Climate tyre. In collaboration
with TBWA Paris and Media Monks we created a site and experience for a spectacular product launch on
March 2nd. http://www.crossclimate.michelin.co.uk/
Activities:
Technical architecture, Development, Team lead. Scrum member

06/2008 - 12/2014
Sr. PHP Consutlant / Software Architect
R&D

Roosendaal, the Netherlands
Ennesse is a wholesaler for Pedicures and sport-massage professionals. Amongst other projects a
webshop I created an Android App: the Ennesse Shopper is a useful tool for shopping in the wholesale
company of Ennesse. The Shopper can be used as a shopping list or reminder on your next visit or as
a shopping basket to be used in the webshop. Order any product available in the webshop and the
store. An added feature is that the list can be sent to the shop.

*Beslist.nl
Sr. PHP Consutlant / Software Architect
August 2014 - October 2014 (3 months)
Arnhem, the Netherlands
Initially I was part of the team that build the new intranet site for the internal tooling of
Beslist.nl The platform is to be used for all tooling, both new and migrated. When the team rapidly
expanded I advised on development automation, deployment, platform monitoring etc.
Activities:
Development and consultancy, Sr. Dev / lead Dev. Platform analysis. Scrum member

03/2014 - 07/2014
Sr. PHP Consultant
Docdata Commerce Nederland

Waalwijk, the Netherlands
Modifications and extentions to their in-house build shop system for HP supplies and products.
Extensions on the functionality I created for DocData's platform in 2013. Payment with Prepaid cards
& vouchers.

12/2013 - 03/2014
Sr. Consultant Websites
Philips

Eindhoven, the Netherlands
In the project Rationalisation 2014 / Decommissioning 2014 I was the Subject Matter Expert (SME) for
all web and web-server related subjects. Support to the for Personal IT, Enterprise IT en Licenses
streams of the project Simplification and rationalisation of the Philips IT landscape. Decom before
Migration.
Activities:
Consulting, Reporting, Creation of Project tooling, Team Lead, Scrum member

10/2013 - 11/2013
Sr. PHP Consultant
Tele2 Nederland

Diemen, the Netherlands
Development of tools for their new website for the resale of 1P, 2P en Tripple-P products.
Zipcode-cheker, Product comparison, contact upgrade etc.
Activities:
Development & testing

09/2013 - 10/2013
Sr. PHP Developer / Troubleshooter
Philips

Eindhoven, the Netherlands
Testing and optimisation of the merger of 2 procurement applications in a single application for
company wide use. Code optimisation, analyses, Support and Performance increase. Assistance in the
effort to meet the October deadline for an internal build procurement application. My main task is
the performance increase of the application and code optimisation.
Activities:
Troubleshooting, testing, bug fixing Scrum member

06/2013 - 08/2013
Sr. PHP Developer
Docdata Commerce Nederland

Waalwijk, the Netherlands
Development of a new component for the online sale of subscription products for the existing, in
house developed, webshop application / framework. Docdata's shop platform is used by HP, bol.com,
Logitech, de Bijenkorf.
Activities:
Development, consultancy

01/2013 - 06/2013
Sr. PHP consultant
Rembrandt casino & Sieger casino

Remote , the Netherlands
Created a brand new casino shell for external game suppliers, frontend, backend and api for the game
suppliers. Build in ZendFramework 1.
Activities:
Development, advice, QA, Security, Advise

11/2012 - 12/2012
Sr. PHP consultant
GfK Daphne

Amstelveen
Sr. Development for partial rebuild of their survey software.
Activities:
Development. Scrum member

08/2012 - 10/2012
Sr. PHP consultant
DPI Holding

Den Haag
Rebuild of the site for Sparta bikes, build in CAKE-PHP.

03/2012 - 06/2012
Sr. PHP consultant
Optisport

Gorinchem
Reverse engineering of a QA system build in PHP/MySQL. Their QA system holds all records and
manditory (legal) testreports for over 170 sports facilities ranging from swimming pools to arena's

02/2012 - 02/2012
Sr. PHP Developer
Vodafone


07/2011 - 12/2011
Sr. PHP Developer
InContext Consultancy Group

Rebuild of the existing MeXuS application build in Excell to a web-enabled application for
evaluating, changing and improving people and organizations.

05/2010 - 06/2011
Sr./ Lead developer Open Source
Ministerie van Buitenlandse Zaken

Development of a PHP Framework for the Ministry of Foreign affairs.
Activities:
Management of the development team.

02/2010 - 04/2010
Sr. PHP Consultant
Raet

Rewrite of existing PHP application from MySQL on Linux to MS-SQL on Windows

*e-Viela!

11/2009 - 01/2010
PHP developer


08/2007 - 05/2009
Sr. Developer
Meditel

Developent of an Online Health Declaration (eGV = Electronische
Gezondheids Verklaring) and a Stock and warehouse application for 60+ medical locations. CED is a
supplier of experts for the insurance industry, and its subsidary Meditel does health checks.

12/2006 - 08/2008
Architect / Consultant
Ubix

Creation of a communication platform for Taxi's, CarPC and Dispatch. The taxi's are equipped with an
on-board computer with GPRS data connection to the central. All communication between central and
driver is via this platform, both data and voice.

04/2006 - 12/2006
Architect

*Triple-P
Architect
April 2006 - December 2006 (9 months)
Designing Architecture for surveillance system with a scalability from 50.000 to 500.000+

08/2006 - 11/2006
Consultant / Troubleshooter
Ciber

Integration of three CMS systems (Censura, PHPbb and Xoops) into one for the AFM (Athoriteit
Financiele Markten). Alongside the rebuild of the entire website.

09/2005 - 04/2006
Consultant / Architect
Hogeschool INHOLLAND

Amsterdam Area
Design & project management of a streaming platform for students (approx.40.000) and a live encoding
solution for lectures. Design of archive and storage for future development of online courses.

06/2005 - 12/2005
Consultant
Hogeschool INHOLLAND

Participation in a DVB-H trail by KPN

03/2005 - 04/2005
Consultant / Developer
Hogeschool INHOLLAND

Utrecht area
Creation of a streaming platform for SES-Astra (Luxembourg). Demo project with 6 live satellite
broadcast streams for UMTS (mobile) phones (o.a. Vodafone-live).

02/2003 - 03/2004
Consultant / Architect
United Broadcast Facilities


01/1994 - 12/2000
CTO / Co-Founder
WestBrabantNet & Concepts ICT; WestBrabantNet


01/1996 - 12/1997
Webmaster
Ministerie van Verkeer en Waterstaat


06/1994 - 09/1995
Developer
Macaw

Development of several project amongst others : Centric CVCD, an interactive CD-Rom application for
recruiters with resumés and video's of candidates. Website for ECT > www.smdg.org, 3DStudio
animations for Philips Lighting.

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