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Codeur Rank

12 768ème
sur 368 000

Statistiques

depuis la création du compte

Projets réalisés0 projets
Projets terminés0 %
Tarif horaire moyen50
Dernière connexion8 mois
Membre depuisMai 2024
Profil vu498 fois

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Réalisations d’Oussama

QIS Financial Engineering Internship,

Société Générale - SGCIB, Paris
avr. - oct. 2019

Worked with the Quantitative Investment Strategy to:
• Collaborated with the Quantitative Investment Strategy Team to devise and understand novel
investment strategies such as Equity Risk Premia, Beta Hedge, and Factor Performance Models.
• Spearheaded the enhancement of the Volatility Target using VAF and Synthetic Dividend approaches.
• Orchestrated the setup of backtests for specific financial products and pioneered the integration of web
services for streamlined operations.
• Coded the optimization and automation of core weekly processes, driving efficiency in workflow.

FIC Trader Assistant / Commando Developer

Société Générale - SGCIB, Paris.
nov. 2019 - nov. 2023

• Development / maintenance / scripting in Python of tools used by team both to automate manual tasks
and assist in monitoring of key business / application analytics
o Coding from scratch a X-Border hedger with python and with a path optimizer which
increased speed of process by 80%.
o Interfacing, and mapping COMMERZBANK’s system with SG’s one with python (FTOM).
o Creating single point of truth the trading book and ensuring access to the traders.
o Automation of all the daily checks and providing KPIs to support management decisions
• Booking and supporting asset manager in his buy/sell operations by providing tailor made analysis
tools (python, VBA)
o Serve as the primary day to day support for Portfolio Managers
o Daily review of positions, market values and cash to validate accuracy. Investigate any
inaccuracies identified and their impact on Portfolio Managers, and coordinate directly with
Reconciliation team to resolve. Which led to 25% less break clause.
• Generating daily bond basket to collateralize synthetic ETF portfolios.
• Handling and booking of swaps and structured product (EMTN, IRDs, inflation swaps…)
• Proactive monitoring of the trading platform with on-going maintenance of monitoring
• Managing on-server calculations, and task automation

Confirmed Developer Engineer, Open SAS, Paris.

Société Générale
nov. 2023 - avr. 2024

Project : Gestion procédure éloignement (GPE)
• Designed and implemented intuitive and visually appealing user interfaces using Angular, leading to a
20% increase in user engagement and a 15% improvement in customer satisfaction.
• Successfully architected and developed a microservices-based system using Python 3.11.0 (Flask
framework).
• Optimized critical sections of the Python application, resulting in a 40% reduction in response time and
a 50% decrease in server resource utilization.
• Enforced version control best practices and collaboration workflows for the entire development team,
leading to more organized and efficient collaboration.
• Implemented a code review process and coding standards adherence, resulting in a 20% reduction in
the number of bugs and an overall improvement in code quality.
• Successfully delivered critical projects on time and within budget, meeting or exceeding customer
expectations and contributing to a 15% increase in customer satisfaction.

Recommandations

5,0/5
Recommandé le 23 mai 2024 par Mathias de Mathias BOUTET

Excellente collaboration avec Oussama ! Professionnel, réactif et à l'écoute. Son travail de qualité a parfaitement répondu à mes attentes. Je recommande vivement !

Recommandé le 23 mai 2024 par Thibaut de AudioWizard

Je recommande vivement Oussama Marnissi, qui a été un atout majeur dans notre projet AudioWizard. Oussama a véritablement optimisé nos algorithmes, rendant notre technologie à la fois plus intelligente et plus fiable. Il excelle dans le travail d'équipe tout en gérant ses missions en solo avec brio.

Doté de compétences techniques exceptionnelles et d'une excellente communication, Oussama a le talent de rendre les concepts complexes faciles à comprendre.

Recommandé le 23 mai 2024 par Mathieu de WIZARD

Je recommande chaudement Oussama Marnissi, qui a été moteur dans notre projet IA. Oussama a vraiment boosté nos algos, rendant notre tech à la fois plus smart et plus fiable. Il travaille super bien en équipe, tout en gérant ses missions en solo sans souci.

Techniquement au top et super communicatif, Oussama a le don de rendre les choses complexes simples à comprendre. Il est toujours à l'affût des dernières nouveautés tech, apportant des idées neuves qui nous ont bien avancés. Un vrai plus pour n'importe quelle équipe !

Formation

sept. 2013 - sept. 2015

MPSI Preparatory School

IPEIT, Tunis

"Classe Préparatoire aux Grandes Ecoles" in Tunis - Mathematics & Physics

sept. 2015 - sept. 2019

IT Engineer Degree

ESPRIT, Tunis

Mathematics, Computer Science, Network Signals, Web Development

sept. 2017 - sept. 2019

Financial Mathematics Engineer Degree

EISTI University, Cergy

Mathematics, Finance, Computer Science, Actuarial Science

sept. 2018 - sept. 2019

Developer Engineer

Paris-Dauphine University, Paris

Worked on the implementation and calibration of the Heston Stochastic Volatility Model:
• Pricing vanilla option prices.
• Calibration tests, using local and global optimization.

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