Sorel SIGHOKO

– Pre-sale architect : commercial proposal/presentation. – Solution architect : audit, pricing/budgeting, investigation/proposition design. – Cloud and infrastructure architect : design, planning, migration, deployment. – Technical architect : cloud/infrastructure implementation – Project piloting : overview, team building, management. – Talent acquisition : interview, profile validation ( Cloud, DevOps, J2EE/FullStack) On / Off shore. – Pre-sales projects : BMW, Alstom, Orange, SFR, etc. – MobiDatalab Architect / Work Package leader : EU Mobility technologies standardisation project within a consortium of 7 partners with the aim to design a Cloud agnostic platform that will offer a unique input to query data/metadata, processors, data and services catalogs.

– Missions / Consulting : – SFR (CAV 800 / Nanterre 92) corporate call center infrastructure. – Linux System tool programming ( PHP, JAVA, C ). – Open source application assistance within the team for alternative to Patrol, Oracle, Genesis. – Training and support for Open Source solutions: Mysql / MariaDb, LVM, MemCache, etc. – Java / Tomcat infrastructure trouble shooting and reporting for quality enhancement. – Technical documentation writing for traceability and team knowledge improvement. – Probe programming for supervision tools ( Patrol, Nagios ). – JQuery / highCharts system and services statistics graph design and programming for corporate non technician use. – RPM package creation for industrialisation in infrastructure deployment. – orange / france télécom (Orange API / Guyancourt 78) service oriented web sites. – Collaboration for platforms migration : click to call, localisation, SMS campaign, etc. – Internal authentication proxy re programming for conformity between CRM third party platform and the inside authentication mechanism. – Application test and validation and technical monitoring for preventing from incident consequently to any unexpectation from the new site. – System administration : migration, install, configure, restore, activity monitoring. – Re-factoring of SHELL / PHP time driven processes ( cron jobs ). – Collaboration with the application exploitation team for critical production debut. – Correction and modification for topology and software delivery friendly packages format. – orange / france télécom (webXms & messaging suite / Bagnolet 93) LAMP multi-site redundant high available computer system. – Network monitoring and administration of Linux distributed system. – MySql Database monitoring and administration on master slave configuration. – Programming of system script for troubleshooting purpose. – Ticketing duties for job repartition among the system administration teams. – Supervision tools oriented system with mainly BigBrother. – Narrow collaboration with development team for infrastructure concordance. – System robustness benchmarking for facing traffic peaks. – Linux migration from old version or from distribution to present corporate selection.

– Team activity management, planning, optimisation and meetings. – Good practices implementation and benefits enhancement. – Business analysis and relationship between end users, technical and management need. – Data center, level [1-3] incidents, operators and activity reporting. – Operations follow-up and ticketing operation implementation reporting and assistance. – Graphical and metrics collection and enforcement for reporting and analysis.

– Auditing the information system : OS, hardware and infrastructure wise. – Demonstrating POC to carry out for end users the project evolution. – Isolating discrepancies on the present IS and suggesting solutions for IS enhancement. – Assessing solutions : time, risk, cost wise for middle management understanding. – Issuing a recommendation report destined to technicians and non technicians readers.

– Société générale.fr (Val de Fontenay 94 ) – Hadoop / Hdfs daily management and troubleshooting. – Multi teams project management: data scientists / developers/system / hardware project investigation and management platform evolution planning – BigData / Hadoop / Linux system operation designer for BigData infrastructure.

– AXA-Tech (Paris La Défense 92 ) System Infrastructure Engineer: – Hadoop ecosystem studying, monitoring, troubleshooting – RPM package creation – python programming for remote servers state checking and conformity control – bigData platform migration preparation and execution – platform evolution analysis and impact studies – LUKS encryption process implementation – Open upload reprogramming for outsiders data injection into the data lake – Publicis (Saint-Denis 93 ) OpenSource Architect: – Python programming for network discovery purpose. – Python programming for network host asset management. – Platform migration for company customer management in terms of : – investigation on customer need. – investigation over company availabilities. – Documentation writing of needs and availability. – galerieslafayette.com (Paris 8) Linux System Expert: – Nagios probes programming and debugging in Bash, Perl plus script documentation writing on corporate wiki. – Release management with Jenkins plus installation packaging and multi-platform configuration deployment management. – Platform monitoring with Nagios and operation troubleshooting. – Platform health reporting on daily base. – MongoDb cluster administration and monitoring design. – Virtualised platform construction via VMWare vCloud. – Documentation writing for : process, scripts, system architecture.

– POC for 160 000 entries per minute capable Galera cluster design. – MariaDb and MongoDB cohabitation validation for production context. – Nagios + pnp4nagios + NRPE monitoring platform design for capacity planning. – Specific probes design for data collection from servers to Nagios ( CPU, threads, files ). – Simulations and testing for troubleshooting bottle neck within : application, services, network, CPU, I/O...

– Exploitation tools migration.

– Network administration, Linux and MySql Database administration – Programming of back office web and database applications. – Development of server-client application in JavaScript, Ajax, C, Perl and PHP for internet and intranet, – Development of back-office database application for MySql server. – Participation in development of system concept. – Revamp of network for satisfying constant evolution in infrastructure needs. – Design of monitoring tools for live activity troubleshoot and technical investigation,

– Infrastructure, Linux system and Network Architect – Technical needs analysis. – Design of the HTTP High Availability and load balancing mechanism. – Purchase, install and configuration of new equipment. – Design of the Data Base High Availability and load balancing mechanism. – Convenience study of the different topologies offered by MySql. – Purchase, install and configuration of the DB network equipment. – Software revision for new Data Base network awareness. – On site computer topology analysis. – Network architecture for load balancing. – system architecture for high availability. – back office PHP scripting for HTTP service compliance with the new topology. – Start-up and monitoring SHELL SCRIPTING for automating the processes. – Technical book for the new system How-To manage and improve. – software architect / PHP consultant – Technical needs analysis. – On site computer topology analysis. – Remote equipment analysis. – ETL development for data base migration. – PHP script rewriting for complete compliance with error_reporting = E_ALL ! – Safety and security enhancement both on extranet and intranet. – Components rewriting for full php compatibility in mode register_globals = Off. – Object oriented introduction for main system organ. – Developer and system administrators training and management. – Capacity planing and strategy design for failure and recovery

– Technical needs analysis. – Information system back office design and development ( since 2006 ) – Computer building from pieces. – System setup and configuration. – Servers setup and configuration : bind, postfix, spamassassin, clamav, apache, tomcat, ssh, MySql. – Network setup and configuration. – Information system running on http://www.e-defix.com

– Audit of available hardware as well as software equipment. – Security context analysis for both software and hardware. – Back office development of users side information systems. – Internal information system aspects development.

– Computer cluster to be linked audit. – Company needs Analysis. – Employees needs Analysis. – Organisation model Proposals to the company's authorities. – Hardware and connection deployment for the I.P. Network set-up. – Desktops and others network nodes configuration. – Damaged desktops up-keeping and new elements installation on the company's network. – Preventive maintenance book writing for the next network manager. – Tests and validations. – Production start of the network.

– Analysis of expectations. – Operation strategy design. – Digital electronic design. – Analogue electronic design. – Electromechanical design. – Optical detection design. – Programmed logic programming. – Robot reliability test. – Algorithms optimisation. – Deployment in real Environment.

– Analysis, development, test, production set-up of a web site for the internal organism use. – System users needs analysis. – Content management and owner identification. – Domain name registration and host technical environment analysis. – User interface development according to the web site user requirement. – Reliability test in terms of safety and security. – Production start of the web site.