Arnaud Costes, Senior Developer | Tech Lead | Data Engineer

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Description

🎯 What I offer as a freelancer

👉 Operational Tech Lead to help a team gain clarity and speed

👉 SRE intervention to stabilize and control your infrastructure

👉 Setup of a complete data stack (ELT, infra, pipelines, monitoring)

👉 Backend reinforcement for sensitive projects, tight deadlines, or complex subjects

👉 Unblock, simplify, accelerate.

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Nantes (up to 50km)

United Heroes
CTO
April 2021 - September 2025 (4 years and 5 months)
France
Hands-on CTO, with a strong involvement in setting up and optimizing workflows and processes for various squads. I hold a key SRE role with advanced expertise in the AWS and Kubernetes ecosystem.

In parallel, I undertake data engineering missions, deploying a complete ELT stack from scratch. My backend experience allows me to remain an active contributor, both in team operations and in architecture design and POC development.
Amazon Web Services Data Integration CI/CD Management Team Management Cloud Administration
Sport Heroes Group
Engineering Manager
SPORTS
September 2017 - April 2021 (3 years and 7 months)
Managed a team of 5 people consisting of backend, frontend (Web and Mobile) developers in tandem with a Product Manager to evolve the Sport Heroes product.

Concurrently, always very hands-on with a specialization as a backend and DevOps developer on AWS.
Team Management Tech Lead Backend Development DevOps Amazon Web Services
Netvibes
Engineering Manager
July 2015 - September 2017 (2 years and 2 months)
Île-de-France, France
Supervised a team of 4 people on a project consisting in exporting Netvibes applications on another platform. For this my job is to decide on the technical solutions to put in place to meet this need and then to organize the work between the members of my team.
Backend Development Team Management

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Engineer, Computer Science and Networks
École Supérieure d'Ingénieurs Paris-Est Marne-la-Vallée, ESIPE.
2011
Ingénieur, Informatique et Réseaux
Computer Science
IUT Paris 13
2008
Informatique

Data Engineer