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Consulting services

With a passion for IT, a specialisation in cloud computing and security and more than 12 years experience with hands on development and system engineering , I'm used to deliver affordable and robust innovative solutions while understanding the importance of time to market. I 'm always eager to learn new technologies and enjoy being around smart people I can learn from. Character-wise I can be considered more as a leader with an entrepreneurial spirit, which makes me a strong asset to help bring a vision to life. After many years of agile development and having been responsible for several complex production systems, I'm able to develop, secure and improve detailed nuances of a system's architecture with focus on scalability and cost efficiency . I have proven customer facing skills and long experience driving discussions with senior personnel. In a multilingual environment like Luxembourg, I also consider my fluent usage of 5 different languages and ability to simplify complex problems, solutions and technologies as some of my main strengths.


Don't hesitate to contact me with your ideas or IT challenges, and I'll be happy to help you!

Contact me

Education & Certifications

(2017) Neural Networks and Deep Learning - Coursera

(2016) Amazon Solution Architect – Professional

(2015) Amazon Solution Architect – Associate

(2011) Offensive Security OSCP (No time yet to do certification)


 

(2008-2010) University of Luxembourg, Master in Information Security Management (RSSI)
 

(2008) Olap (Chambre des métiers), Ergonomie des sites web (Certified)
 

(2008) Olap (Chambre des métiers), E-marketing (Certified)
 

(2005) Cisco CCNA training
 

(2002-2005) KHK/Thomas More (Geel), Bachelor in Electricity, option Electronics with major in ICT. Graduated cum Laude, Thesis resulting in the best Small Business Project in Belgium, second best in Europe.
 

(2000-2002) Koninklijk Atheneum Leopoldsburg, 3rd grade TSO, Accountancy-Informatics. Graduated cum Laude, with a price for the most deserving student.

(2001) Adult evening school Kempen-Maasmechelen, HSTL Informatics application software: Lab data- en telecommunication, (Certified)
 

(2000) Adult evening school Kempen-Maasmechelen, HSTL Informatics application software: Lab networks windows 2000 Server, (Certified)
 

(1996-2000) Koninklijk Atheneum Leopoldsburg, 1st and 2nd grade ASO, Economics-Maths. 
 

(1999) Adult evening school Kempen-Maasmechelen, HSTL Informatics application software: Lab computer systems, (Certified)
 

(1998) Adult evening school Kempen-Maasmechelen, HSTL Informatics application software: Lab Operating systems Msdos 2, (Certified)

More than 12 years experience

  • Devops

    • Convert complex existing production systems into flexible multi-environment (dev, staging, prod)  docker containers allowing portability to different cloud providers

    • Migration of big complex on premise applications to the AWS cloud

    • AWS complex cloudformation autoscaling using Lambda functions and SNS to reduce costs

    • Deep production website system performance improvements up to 50-60% on CPU 

    • Postmarkapp.com mail delivery

    • Advanced AWS application loadbalancer and Target group routing based on host/routes

    • Implementation of CDN with cloudfront

    • Implement proxySQL for READ/WRITE splitting

    • Email delivery score improvement using emailhippo and complex multi google account setup

    • Postgres and MariaDB migration to RDS AWS

    • Elasticsearch configuration and dockerization with redundant setup on AWS

    • Deep Route53 best practice implementations for high volume website DNS configuration

    • PHP-FPM opcache tuning + application pool splitting + security finetuning

    • Redis configuration/performance tuning

    • S3FS implementation for mapping S3 data to EC2 instances on AWS

    • Guidance and education on best-practice for the implementation of serverless applications on AWS using Lambda/API-gateway and DynamoDB

    • Automated docker deployment to AWS cloudformation using CircleCI continiuous integration

    • AMQP infrastructure maintenance/monitoring

    • Integration of Docker and cloudformation templates for several high traffic production systems

    • Thin client IGEL & Thinlinc & RDP & VNC implementations for centralized remote desktop access

    • Configuration and management of VOIP system with 3CX and FreePBX/Asterisk

    • Successful implementation of SCRUM methodology for development team.

    • Infrastructure agnostic devops with Docker both locally as in cloud with AWS container services

    • Multi-AZ mirroring of MS SQL Server, setup & maintenance (Indexing, profiling, ...)

    • Negotiating and following up of several outsourced development projects

    • Conception and implementation of local private cloud based on Citrix XEN Server, running multiple production systems for combined redundancy with cloud infrastructure.

    • Redundant network architecture conception and implementation for about +80 connected devices  using Cisco routers and switches.

    • Windows Server management: Active directory, Routing, DNS configuration, remote desktop management, ...

    • Linux server management:  Encryption, Routing, Security, DNS, Email, User management, postfix, ACLs, ...

  • Security/monitoring

    • Implementation of rootkit scanning on production systems to detect potential important configuration file changes

    • Papertail centralized log implementation for many production systems to deliver cronologic one place logs

    • ​AWS KMS encryption backed on premise MariaDB encryption

    • Integration of continious penetration testing with Whitehat Security

    • Apache benchmark and bees with machineguns high load testing to simulate realistic traffic

    • Implementation of Bastion host for secure AWS resource access

    • Newrelic monitoring/alerting

    • Implementation of sqreen.io and AWS cloudformation WAF application protection for high traffic production systems

    • Implementation of Amazon web services Cognito for user authentication & credentials

    • Conception and implementation of secure communication with OpenVPN interconnection

    • Infrastructure firewall security and regular intensive security assessments and improvements both locally and in the cloud.

    • Elastic and redundant Amazon web services cloud implementation to run the IT infrastructure (Webservers, DB servers, application services, automated backups).

  • Development

    • RDF graph database development using SPARQL query language and management of Blazegraph (Bigdata)

    • Deep analysis and development of smart contracts for Ethereum crypto-currency to securely host knowledge certificates in the blockchain.

    • Development of the knowledge/task management platform brainframe.me with AngularJS as front end and Amazon web services Lambda NodeJS as serverless backend.

    • Development of client and server side code to interact with the Ethereum blockchain to create and remove wallets and buy crypto-currency coins

    • Development with D3.js and AngularJS in front-end to visualize the hierarchical structure and to create interactive mindmaps

    • Development of C# application to create a dropbox like user interface to link local file system documents to an online system allowing them to be opened directly from the website using Amazon web services SQS, API Gateway and Lambda.

    • Development of proof of concept virtual reality game using Unreal engine 4 similar to game 'Addict-a-ball'

    • Development of interactive Virtual reality environments using Blender and Unreal engine 4.

    • Development and daily management, improvement and maintenance of core sales channels for big e-commerce platform (Website, Kiosk, Mobile apps)

    • Development of just in time production process with live cloud centered production touchscreens and bar-code product labeling.

    • Development and implementation of cloud centered Android GPS delivery application (GIS) with direct communication between driver and back-office and customers.

    • Development and improvement of Phonegap/cordova based mobile app for Android, Iphone, Microsoft Phone & Amazon Phone.

    • Conception, implementation and maintenance of fully self managed email system (postfix) delivering more than 10,000 emails on daily basis with little to no delivery failures. This is quite challanging knowing most of the recepients were Financial institutions, Big corporations and European institutions.

    • Ground up development of cloud centered conveyor system and pick-to-light system for packing orders and ensuring correct logistics. I was responsible for working out both the physical hardware setup and software development (Siemens PLC + VB.NET), resulting in a high speed packing system.

    • Conception and development of integrated finance/billing system responsible for delivering several thousands of invoices on monthly basis. The payment options included automatic recurrent credit card payments with SIX Card solutions and Paypal, SEPA Domiciliations and automated bank transfer processing via Multiline. 

    • Development of a system that greatly reduced manual labor for cash and meal voucher money counting/reconciling using OCR text recognition with a direct link to the finance system

    • Ground up conception & development of ERP system with Adobe Flex as front-end and ASP as back-end with modules for CRM, HR, Finance, Fleet Track & Trace, Statistics and Product management. 

    • Migration and development of ERP system to Django/AngularJS. 

    • Integration of OpenERP/Odoo ERP for accounting and stock management, with the development of several custom extension modules.

    • Development of migration tool to sync data with Odoo via XMLRPC

  • Other

    • Direct reporting, planning and decision taking with top management

    • Business intelligence analysis to help discover abnormalities, do predictions and decide on improvements

Skill set

  • Linux: Ubuntu, Redhat, Centos, Apache webserver, Haproxy, Samba, Postfix, Stunnel, FreePBX, Gunicorn, Nginx, NFS, VSFTP, unison, advanced routing, bash scripting, Rsync

  • Windows: Active directory, DNS, RDP, Routing, Web farm

  • Amazon web services: EC2, Elastic Beanstalk, RDS (MSSQL, MySQL & Postgresql), EC2 Container Services, IAM, Cognito, VPC, ELB, Autoscaling, S3, Route53, aws-cli, SES, DynamoDB, Glacier, Cloudformation, Cloudfront, RDS, Lambda, Elastic Beanstalk, API Gateway

  • Security: Endian Firewall, OpenVPN, Meterpreter, Netcat, NC, Kali Linux, Metasploit, nmap, Password (John, Medusa, ncrack, cewl, hashcat), IPTables, SQLMap, OpenSSL, ISO 27001 Security assessment methodologies, edb-debugger, ollydbg, wireshark, Sqreen.io, whitehat security, AWS WAF, 

  • Databases: MS SQL 2008-2014, Blazegraph (Bigdata graph DB), Postgresql, MySQL/MariaDB, advanced SQL & stored procedures, ODBC, SPARQL RDF

  • Development languages: C#, VB .NET, Python, Django + Django REST, NodeJS, Bash, Siemens Step 7, Android, PhoneGap, Javascript, AngularJS, VB6, HTML+CSS, 

  • Hobby/freetime: Machine learning - deep learning, Basics of PHP, basics of Java, Basics of Unreal engine 4 Blueprint

  • Development tools: Jetbrains IDEA & Pycharm, Visual studio 2010/2015, Visual studio 6, Android studio, Dreamweaver, Protégé, GIT & Github, BAZAAR, Jetbrains Youtrack, Flex builder

  • Deployment, automation & CI: Docker, Elastic Beanstalk, Jenkins, Gulp, Grunt

  • Industrial Automation: Siemens Simantic step 7, High speed camera recognition, Pick to Light

  • Graphic tools: Photoshop, Indesign, D3.js, Unreal engine 4, Blender

  • Business tools: Odoo/OpenERP 8.0, SIX card solutions credit card payments, Paypal credit card solutions, Multiline payment solutions (SEPA, 94E), Ethereum blockchain