Oussama Stiti

Senior Infrastructure Solution Architect

Salary / Daily rate

Brussels, Belgium

Freelance

Remote only

Languages

EnglishSpanishFrench

About me

Intro

Infrastructure Solution Architect with 10+ years of experience in cloud migration, SDN/NFV implementations, and virtualization technologies. Ph.D. engineer who has designed and deployed enterprise-scale virtualized infrastructures for major telecom providers, reducing deployment times and optimizing costs. Offering expertise in cloud architecture, network virtualization, and strategic technical leadership to transform your infrastructure challenges into efficient, future-proof solutions.

Links

Work experience

Infrastructure Solution Architect

STIB-MIVBFreelance

Jun 2022 - Present

4 years 5 months

Région de Bruxelles-Capitale, Belgique

Skills: Communication · Migration vers le cloud · Projets de migration · Résolution de problèmes

Solution Architect

ProximusFreelance

Jun 2021 - May 2022

1 year

Brussels, Belgium

• Understand, Analyze and challenge the business needs. • Do the first evaluation of the business request and determine a high level solution & costs (Intake process) • Elaborate the end to end Solution Architecture in close collaboration with the IT delivery teams taking into account business (functional) and operational (non-functional) requirements. • Design the solution aligned with the target architecture defined by the Enterprise Architect. • Support the solution development, testing and implementation. • Support the test managers to define the testing strategy & scenarios

Private Cloud Solution Architect

Orange Business Services

Oct 2019 - Jul 2021

1 year 10 months

Région de Paris, France

Technical Design Architect for Large International Programmes: • Ensure a successful completion of the selected technical solution • Provide a support to Service Delivery Manager, Engineering Experts and OPS Experts and Operations • Take part to the internal handover kick off and customer kick off. • Provide the technical leadership of the solution for the duration of the contract. • Accountable for all design aspects and solution implementation • Lead the technical governance of the solution and advises on emerging technologies • Accountable for the correct operation of the solution with regard to customer requirements. • Coordinate the contributions of experts and engineering teams to ensure the overall technical coherence and quality of the project. • Accountable for producing the technical documentation of the platform and keeping it updated. • Participate in risk management as part of the project (particularly on Large Business) • Acts as technical advisor for cost optimization and identification of required skills • Optimize and models the costs, and contributes to the P&L.

Architecte Infrastructure & SDN/NFV Consultant

Bouygues Telecom

Dec 2016 - Oct 2019

2 years 11 months

• RFP writing for the first SDN solution in Bouygues Telecom. • Audit of the various providers of SDN products. • Study of all the SDN solutions available on market (technical aspect and billing model). • Testing and rating best proposed SDN solutions. • Installation of the first open-source based SDN Lab within the validation environment to provide a learning ground for Bouygues Telecom's engineering teams. • OpenStack Newton deployment (from scratch) and implementation of a SDDC POC. • VMware solutions testing (NSX, vRNI, vROPS, vRO, vRLI, vCD). • Supervising first VMware vCloud NFV 2.0 deployment platform. • Coordination of support operations within the validation environment. • End-to-end validation of the new Bouygues Telecom Enterprise virtualized infrastructure: physical servers, virtual infrastructure, network architecture, onboarded VNFs, VNFs orchestration). • Integration of SD-WAN solutions in testing environment for short-listed providers POC. • Drafting of acceptance test plans for virtual infrastructure. • Detecting anomalies and bugs on the environment and opening tickets of incident with our several providers. • Preparing platform migration to VMware vCloud NFV 3.0 • Running and testing vRO VNF workflows developed by VMware for Bouygues Telecom.

LIP6 - Laboratoire d'Informatique de Sorbonne Université

Oct 2012 - Dec 2015

3 years 3 months

Laboratoire d'Informatique de Paris 6

Ph.D. Candidate in Data Center Virtualization / VNF Orchestration / SDN

Jan 2013 - Dec 2015

3 years

Laboratoire d'Informatique de Paris 6

Ce travail de recherche et de développement a été mené en collaboration entre le Laboratoire informatique de Paris 6 (LIP6) et l’entreprise VirtuOR sous la direction de Pr. Guy Pujolle dans le cadre d’une convention CIFRE. Paris, France. • Virtualisation d’équipements réseau (Switch, AP Wi-Fi, routeurs, serveurs d’authentification, firewall). • Gestion du déploiement d'applicatifs de niveau réseau (Virtual Network Appliance) sur une infrastructure de ressources virtuelles. • Développement d’AP Wi-Fi Hotspot2.0 (Passpoint). • Design des processus d’implémentation NFV & SDN. • Intégration des solutions SDN/NFV dans les boxs d’entreprise. • Création d’une architecture de pairing Wi-Fi/NFC avec PKI. • Veille technologique et rédaction de surveys/white papers. • Développement d'APs OpenFlow contrôlés par un contrôleur SDN permettant l'orchestration des différents noeuds Wi-Fi, l’élasticité du réseaux, et l'adaptativité du routage pour un roaming plus efficace.

R&D engineer Cloud Virtualization / Orchestration (SDN/NFV/Openstack/KVM/Xen)

Oct 2012 - Dec 2015

3 years 3 months

Région de Paris, France

Skills: Communication · Résolution de problèmes

Hardware Engineering Intern

Apple

Jun 2014 - Oct 2014

5 months

Cupertino, CA, USA

System Test Engineer in Wi-Fi connectivity team. During this internship I developed a tool for helping engineers to check Wi-Fi protocol compliance of the Apple products, to detect known potential bugs, and to gather Wi-Fi performances and statistics of the wireless network. (Work under Mac OS X 10.9 and 10.10).

R&D Engineer (Graduation Project)

포항공과대학교

Jan 2012 - Jul 2012

7 months

IT Convergence Engineering, Pohang University of Science and Technology. Korea

Graduation project: Real-time analyzer of perceived video quality and user experience in H.264/AVC. Video analyzer implementation involving network programming, traffic sniffing, and H.264/AVC codec modifications. Experiments conduced in real network multimedia streaming conditions using various reference video clips. Advisors : Prof. Raouf Boutaba (University of Waterloo) / Prof. Amel Benazza ( Sup’Com)

Engineering Internship at TCC-Core Integration, QA Team

SunGard

Jul 2011 - Oct 2011

4 months

Tunis, Tunisia

Establishment of an automated solution for deploying and updating SunGard products. * Development of an automation script for SunGard products (bash/python/perl): -Installations -Configurations -Updates -Upgrades

Internship

CERT Division at the Software Engineering Institute

Aug 2010 - Oct 2010

3 months

Projects at the standardization and certification laboratory. * Homologation of telecommunications terminals. * Writing Homologation reports to demonstrate compliance terminals to standards. * Standardization of telecommunications terminals. * Technical inspection of telecommunications terminals. * Handling mobile radio networks simulators.


Education

Pierre and Marie Curie University

Philosophiæ doctor

2012 - 2015

3 years 1 month

Ecole supérieure des communications de Tunis (Sup'Com)

Telecommunications Engineer

2009 - 2012

3 years 1 month

Institut préparatoire aux études d'ingénieurs El Manar (Tunis)

DEUG

2007 - 2009

2 years 1 month

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