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Mario Truyens

AWS/Azure cloud architect - senior Java developer

Can work in or around Boutersem

  • 50.8399
  • 4.8321
  • Suggested rate €750 / day
  • Experience 7+ years
  • Response rate 100%
  • Response time A few days
Propose a project The project will begin once you accept Mario's quote.

This freelancer is available part-time (2 days per week) but hasn't confirmed their availability in over 7 days.

Part-time, 2 days per week

Propose a project The project will begin once you accept Mario's quote.

Location and workplace preferences

Boutersem, België
Can work onsite in your office in
  • around Boutersem and 50km


Project length
  • ≤ 1 week
  • ≤ 1 month
  • Between 1-3 months
  • Between 3-6 months
  • ≥ 6 months
Company size
  • 2-10 people
  • 11 - 49 people
  • 50 - 249 people
  • 250 - 999 people
  • 1000 - 4999 people
+1 autres


Freelancer code of conduct signed
Read the Malt code of conduct

Verified email


  • Dutch

    Native or bilingual

  • English


  • French



Skills (19)

Mario in a few words

Technical architect with 25+ years of experience and freelancing for 20+ years. Masters degree in Engineering. Led several cloud migration projects for various enterprise-level clients, both on Azure and AWS. Senior Java developer, passionate about microservices and serverless technology.


Nike - Nike


Technical Architect  - As a freelancer


May 2018 - Today (4 years4 years and 3 months)

Technical architect of the ILMN product team (Inbound Logistics Management & Node Enabling), consisting of 8 medior/senior Java developers.
- Responsible for a diverse landscape of legacy JBoss application, Spring Boot microservices – both deployed in Docker containers on Kubernetes - and serverless.
- Strong focus on the move to the AWS Cloud by using a serverless design, involving lambda functions, DynamoDB, API Gateway, SQS/SNS, Kinesis etc…
- The team operates in a devops manner within a SAFE agile context. We use trunk-based development and a CI/CD pipeline using Jenkins, Sonar and Artifactory. Monitoring tools used are the Elastic stack, Splunk and New Relic.


Murex/Java Solution Architect  - As a freelancer

Amsterdam Area, Netherlands

September 2016 - April 2018 (1 year1 year and 7 months)

Hired as technical expert to professionalize the IT setup of the markets domain. - Design and development of a POC using a microservices architecture (Apache Camel, Java Spring, Docker) as solution for a MIFID II project, hosted on AWS. - Setup of a Murex CI/CD chain (Murex CTT, Nexus, Jenkins, JIRA, BitBucket…) through development from scratch of a commercial-grade tool (Mercury Package Manager) which enables automated versioning and deployment capabilities for any off-the-shelf application, using an Angular 4 front-end and a Java 8/Spring REST API back-end, which is documented via Swagger and uses a Maven-like plugin approach. With the consent of ABN, negotiations with several financial institutions for adoption of this tool. The tool can be showcased on AWS. - One of the main developers for building a MIFID II Tradestore on top of MarkLogic, a NoSQL database. This involves development in XQuery, SPARQL and Java.


Banking & Insurance

Senior Murex Consultant  - As a freelancer

June 2016 - September 2016 (3 months)

Engaged through Capco to assist with the last phase of the MXG2000 to MX3 migration, which is meant to go live at October 4 2016. Main focus is troubleshooting and reshaping the full EOD cycle which is lacking stability and performance

UBS Investment Bank

Banking & Insurance

Murex Environment Manager  - As a freelancer

June 2015 - June 2016 (1 year1 year)

Hired to assist in the largest Murex greenfield project ever, to make sure the project is delivered on time. Initially focused on reshaping Configuration Management, introducing Continuous Integration and Deployment:
- Migration from SVN to Git and design of the workflow strategy for multiple parallel development streams.
- Automation of CTT (Murex Configuration Transfer Tool) functionality: import, export, versioning and intelligent zip comparison.
- Versioning and push-button deployment of the application directory.

In a second phase, I redesigned the environment architecture across all development environments:
- Flexible distribution of environments across servers, to make optimal use of available resources and provide fast turn-around times to meet changing requirements.
- GUI based monitoring and environment management, including self-provisioning for developers.
- Development of a global dashboard, showing real-time status and performance of all environments, including an environment and interface booking calendar.


Murex environments lead  - As a freelancer

December 2013 - May 2015 (1 year1 year and 5 months)

Headhunted by former colleague to lead holistic review of existing technical infrastructure and implement major redesign to accommodate future growth, as well as reduce incidents, cut maintenance costs and increase performance. Developed MxML flows and Datamart reports for clearing of FX Options. Partnered closely with internal stakeholders, including risk and sales teams. - Delivered monitoring tool on Murex environments, including development, acceptance, testing and pre-production, for improved performance, reduced incidents, rapid incident resolution and easier capacity planning; oversaw high-level design, business stakeholder management and signoff, phased implementation and roll-out. - Environment management can now be handled by offshore teams as the user-friendly framework does not require deep technical expertise. - Introduced version control system and automated deployment for Murex developers; this has increased traceability, resulted in more efficient and safer deployments, and facilitated parallel development.

KBC Bank

Murex Consultant  - As a freelancer

April 2008 - December 2013 (5 years5 years and 8 months)

Initially recruited as Murex Support Engineer to provide global technical and functional support of Murex 2.11, including development with MxML Exchange, its interface with other trading applications. Rapidly progressed to Murex Developer as GOM / EOD stream leader for a large-scale migration project, and Murex Technical Consultant, fully accountable for the development, extension and maintenance of the MX Dashboard. - Pioneered MX Dashboard, a complete framework that monitors and controls the Murex application and underlying database, operating system and hardware, with front-end developed using JQuery and templated HTML, and back-end using OO Perl and Sybase database. - The framework supports all environments, particularly in production, and has enabled a 50% reduction in staff supporting the Murex environment, despite its substantial increase in complexity. - Instrumental to the delivery of major migration to Murex V3; workstream leader for GOM / EOD, responsible for global operating model and end-of-day setup and conversion of the complete Perl scripting framework and of performance track. - MX Dashboard made achievable a ‘nearly impossible’ migration from Murex 2.11 to Murex 3; KBC was one of the very first banks to migrate to version 3 and provided near beta testing for Murex. - Counteracted severe performance problems; further extended MX Dashboard to diagnose, analyse and solve performance problems of all Murex components, including design, software and hardware issues.

Commerzbank IB London

Senior Murex Developer  - As a freelancer

July 2007 - March 2008 (8 months)

Headhunted back to the bank to oversee migration from Murex 2.11 to Murex 3.1, and deliver improvements to environment management tools. - Designed complete management framework around Murex 3.1 for Equity Derivatives, using Perl and Java webservices, which controlled all aspects of Murex management, including installation, configuration, backup and restore, access control, performance monitoring, reporting, load balancing, EOD and uploads. - Singlehandedly developed framework from scratch, replacing unmaintainable, ad-hoc shell scripts to easily manageable and extendable by junior programmers; this framework is still in use today at the bank.


Central Infrastructure and Operations Manager  - As a freelancer

November 2006 - July 2007 (8 months)

Fully accountable for availability and service levels of the organisation’s central IT infrastructure, with oversight of a team of 40 permanent and outsourced staff. - Led the implementation of new incident management software, including assessment of vendors, and heavily involved in virtualisation solutions and Tivoli monitoring.

De Post

Senior IT Architect  - As a freelancer

August 2005 - November 2006 (1 year1 year and 3 months)

Returned to Group to head the introduction of clustering technology, and lead migration from Solaris 8 to Solaris 10. - Delivered migration on time and with zero business impact; responsible for end-to-end project management, plus technical design. - Recommended clustering solution, following multi-vendor analysis; proposal accepted by senior management.


IT Design Engineer  - As a freelancer

March 2005 - August 2005 (5 months)

Project managed six-month initiative to re-design Windows-Unix filesharing environment, and lead roll-out of new solution. - Delivered the technically complex project, through SUN Microsystems, on time and to client specification.

De Post

Senior Solaris System Engineer  - As a freelancer

August 2001 - February 2005 (3 years3 years and 6 months)

Oversaw all Unix servers as main Solaris expert, including management of an SF15K, E10K, several Serengeti’s, SAN consisting of Sun StorEdge and HP XP-512. Led a number of development projects. - Lead developer of a web-based database front-end in Perl / Mason, used by IT department for billing purposes. - Delivered a high-availability file transfer solution used for all internal and external file transfers, including by core third parties; the user-friendly, fault-tolerant application had a failover system and was a vital tool for daily operations. - Project led implementation of a cross-platform scheduler, including evaluation of vendors and decision processes.

Sun Microsystems

Trainer  - As a freelancer

August 2000 - March 2003 (2 years2 years and 7 months)

Taught courses on Unix fundamentals, Sysadmin I, Sysadmin II, TCP/IP, Veritas Volume Manager and Sunfire administration, part-time, to a diverse client base including IT professionals, sales teams and other business staff. - Designed and delivered beginner and advanced Perl courses, as sole Perl teaching expert.

Commerzbank IB

Perl Developer  - As a freelancer

January 2001 - January 2001

Contracted as lead Perl developer to deliver a web-based framework for IT division to support trading floor. - Developed state-of-the-art tool for monitoring and control of Murex environment; the framework was developed in Perl, running on Apache / Solaris / Sybase back-end, and enabled performance monitoring, security assessment and troubleshooting of the Murex application.


AIX System Engineer / Oracle DBA  - As a freelancer

Leuven, Belgium

January 1999 - January 2001 (2 years2 years)

Headhunted back to Interbrew to lead the development of a corporate intranet, and provide Oracle administration and consultancy for all ongoing Unix projects. - Developed corporate intranet from scratch, used by 200-person IT team and crucial for day-to-day management of IT infrastructure; it ran on AIX and Linux, with Apache as webserver, Oracle as back-end, and Perl as scripting language.


Unix System Engineer

Leuven, Belgium

August 1998 - March 1999 (7 months)

Fully accountable for all Unix servers, particularly webservers, running Apache on Solaris, including installation, maintenance and trouble-shooting for the business and its customers. Instrumental in capacity planning, strategic development and security.

K.U. Leuven

Scientific Researcher

Leuven, Belgium

August 1996 - August 1998 (2 years2 years)

Led conceptual design and implementation phases of the EFTOS project, Embedded Fault Tolerant Supercomputing, where a C software library was developed to make parallel computers fault tolerant, with a Unix operating system. - Developed profound knowledge of Unix and fluency in C. - Designed and delivered weekly seminars on parallel programming, control theory and fault tolerance for Masters of Engineering students.