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Jacobo SanchezJS

Jacobo Sanchez

Lead Backend Engineer

700 €/jour
Paris, FR
8-15 ans

Délai de réponse moyen : 1h

À propos de Jacobo

Ancient Lead Developper chez Wethenew, passioné d'informatique depuis mes 13 ans, je suis quelqu'un de très curieux et proactif.

Je compte plusieurs domaines d'expertise dont l'ingénierie back-end et le scrapping (combiné certaines fois à du reverse engineering).

J'ai déjà fait des APIs répondant plusieurs milliers de requêtes par minute, connectées à des bases de données mySQL comme MongoDB.
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    Notions

En télétravail uniquement
Travaille majoritairement à distance

Expériences

  • Wethenew
    Lead Backend Engineer
    juin 2019 - septembre 2023 (4 ans et 3 mois)
    Paris, France
    Joined Wethenew as the very first developper. During four years, some of my main feats were :
    - Helped build a big tech team, made of 25 persons at its peak and managed two team and heavily participated in the recruiting process.
    - Helped scale the business from ~20.000 orders to ~500.000/year.
    - Solely built our very first Back-Office, which helped track sales, supply and logistics.
    - Had a main role in several strategic product development, may it be our Back-Office, Seller Space (supply site), customer selling website and our in store ventures.
    - Built an extremely fast and load resistant application, of over 350M request per month and withstanding 1.000 requests/s peaks with 99.99% uptime and ~70ms response times. More technically :
    - Solution architectured and developed a complete technical stack, under a monorepo form with several applications. Using NestJS, MySQL, AWS and Redis.
    - Integrated several APIs, enabling features such as automatic label creation, seller payouts, automated and event-driven customer emailing.
    - Collaborated on the creation of our custom built mobile applications, allowing our logistics and in-store teams to be mobile. This was done using Flutter.
    - Heavily contributed to the creation of a bug free stack, setting up unitary and end-to-end testing and CI / CD pipelines using Github Actions.
    - Created our first cloud stack (Heroku and MongoDB), and heavily contributed to its migration to AWS (ECS, S3, VPC). -Put into place the foundations to automatically managed supply sourcing and pricing change. Monitored pricing on concurrent websites through scrapping and did model training on data.

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Formations

  • Master Informatique : Sécurité, Fiabilité et Performance du Numérique
    Sorbonne Université
    2020
    Le parcours Sécurité, fiabilité et performance du numérique (SFPN) offre une formation de haut niveau dans les domaines de la cryptologie et du calcul haute-performance. Ils s'appuient sur des compétences avancées dans plusieurs domaines de l'algorithmique comme le calcul formel et l'arithmétique des ordinateurs

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