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Nicolas Karolak

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DevOps Engineer

Melun, Île-de-France, FR nicolas@karolak.fr
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Passionate about computers. Linux and automation oriented. Free and open source software lover. Occasional contributor. Remote worker. I need my work to be meaningful and socially useful.

Work

Site Reliability Engineer @ Infomaniak • Geneva, Switzerland
Member of the Platform/DevOps team.
DevOps and Security Engineer @ Silvr • Remote
As a member of the Infrastructure team, I participate in the maintenance and evolution of the different services, and assist the developers in the deployment of their code to production.
Highlights

CI/CD pipeline management via GitHub Actions • Kubernetes resources deployment via Helm • GCP infrastructure management via Terraform

Bachelor's Degree Teacher @ IUT de Sénart • Lieusaint
Some time after having passed my Bachelor’s Degree, I was invited to help with the supervision of the practical and tutorial at first, to later begin to intervene in certain course modules for which I could develop a professional expertise.
Highlights

Cryptography basics training • Python scripting training

Linux Systems Engineer @ Atexo • Remote / Paris
Within the Infrastructure team, I participated in the deployment, maintenance and supervision of the platforms for the customers, and in the evolution of the Ansible scripts allowing the automation of these tasks.
Highlights

Deployment management via Ansible • Evolution of Ansible scripts • Migration of storage infrastructure to ZFS

Linux Systems Engineer @ BoondManager • Remote
As a member of the “DevOps” team, I set up proofs of concepts for the necessary evolutions to the infrastructure.
Highlights

Implementation of Ansible best practices • POC for a Galera cluster • POC for a GlusterFS cluster

Linux Systems Engineer @ UGE • Remote / Champs-sur-Marne
I joined the IT department to help with user support and fleet administration.
Highlights

WireGuard VPN deployment • Writing a logging daemon for WireGuard

Linux Systems Engineer @ UbiCast • Remote / Ivry-sur-Seine
I was recruited to relieve the lead dev and the CTO of system administration tasks. This is how I was able to set up the deployment automation tools and start a DevOps approach.
Highlights

Bash/Python scripts migration to Ansible • PostgreSQL high availability • Python/Django developments • Docker and GitLab CI implementation

IT Manager @ Lycée Saint-Nicolas • Paris
Following the departure of the manager with whom I had worked during my previous position at the School, he contacted me again to offer me the opportunity to take over.
Highlights

Management of servers and clients • Implementation of Ansible • Writing a Django backend for user management

Systems and Networks Administrator @ IUT de Sénart • Lieusaint
I joined the IT department to help with user support and fleet administration.
Highlights

Management of servers and clients • Implementation of Centreon for supervision

Systems and Networks Administrator @ Lycée Saint-Nicolas • Paris
I was recruited to help the IT manager, who being a teacher could only be available part-time. I was in charge of level 1 to 3 support, and the design and maintenance of the infrastructure.
Highlights

Management of servers and clients • Virtualization of servers with Proxmox • Implementation of inter-site VPN

IT Support Technician @ Chateaud'eau • La Courneuve
As a member of the support team in the French subsidiary, I was in charge of solving employees’ problems on the different applications, and also of liaising with the N+3 support.
Highlights

Management of servers and clients • ERP migration management • Implementation of infrastructure projects

Education

Bachelor's Degree, Systems and Network Administration @ IUT de Sénart

Score: 16

HND, Administration of Local Area Networks @ Medicis

Score: 12

Languages

English: Advanced (C1)

French: Native language

Skills

90 Operating System: Linux

80 Infra-as-Code: Ansible • Docker • Git • Kubernetes • Terraform

70 Scripting: Bash • C • Go • Python

60 Web: Apache2 • HAProxy • Nginx

50 Cloud: AWS • GCP • OVH • Scaleway

40 Database: MariaDB • PostgreSQL • Redis

Interests

Sports: Climbing • Judo • Hiking

Culture: Astronomy • Fantasy • Science-fiction