Clément Hermann

Coopérative d'Activité - Freelance Professionals Cooperative

Management of infrastructures, from drawing board to day-to-day ops:

• Networks (Datacentre, WAN, Entreprise, SDN, Cloud, Interconnect)
• Systems (Virtualized, bare-metal, containers…)
• Cloud (Private/Public/Hybrid)
• Devops (Infrastructure as Code, Workflow…)

Expertise:

• Free Software / Open Source solutions
• Linux/BSD/Unix** Systems
• Open Networking
• Infrastructure as Code

References on request

Open Minded Swiss Digital Agency (part of Smile Group since 2018 - https://www.smile.eu)

Network Infrastructure

• Design & Management of a state of the art, BGP-only L3 Network Fabric, with a leaf-spine design, using Cumulus Linux whitebox switches, Mikrotik (WAN and DCi routers), OpenBSD and Debian

Systems Management (Internal tools and hosting services)

• Day to day administration of the Hosting Infrastructure: Linux (Debian, Ubuntu, CentOS), SmartOS (system containers, standalone and in Triton/SmartDataCenter setups), and FreeBSD;
• Design, deploy, operate and debug environment for in-house or customer coded applications (mostly web). Collaboration with software engineer teams (both in-house and customers’).

Environment: Haproxy, Nginx, Apache httpd, Varnish, MySQL, PostgreSQL, Prometheus….

Configuration Management and Automation: Saltstack, Ansible, Gitlab, Vagrant…

Web Agency and Hosting Services

Co-leader of Network infrastructure team

• Management of a team of 5 people,
• Design, maintenance and development of the network infrastructure: 3 Hosting & Housing datacenters, 2 network POPs, ~1300 managed servers (~800 virtual servers), ~500 vlans, NSP for the B&D Group (France and continental Europe, North Africa), Responsible for the WAN, L3 architecture and network filtering (Firewalls and DDoS Mitigation).

Leader of Security Team

• Management of a team of 3 people,
• Technological Watch, incident response, audits, penetration testing, guidelines, procedure and compliance documents writing.

Member of Technical Commitee

• Design solutions and arbitrate technical issues,
• Debian Expert, FLOSS solutions Expert, Scalability & HA expert

Web Agency and Hosting Services

Co-leader of Network infrastructure team

• Management of a team of 3 people
• Design, maintenance and development of the network infrastructure: 3 Hosting datacenters, ~600 managed servers (~300 virtual servers), Eolas LAN;
• Co-design the new network infrastructure using a MPLS/OSPF core and VPLS.

Security Expert

• Incident response, Technical advisor, penetration testing, guidelines writing.

Member of the Datacenter Design Team

• Participation in the design of a state of the art Green Datacenter (notably building security, intrusion prevention, cable management) in collaboration with Intel and Schneider. Writing of Eolas’ application as the first french French Endorser of the EU Code of Conduct for Energy Efficient Datacenters.

Web Agency and Hosting Services

System & Network Administrator

• Customers Technical support (L1, L2),
• System Maintenance (System and application Installation, Software and Hardware maintenance), Heterogeneous environment (Windows/Linux).

E-mail solutions expert

• Design and maintenance of the Corporate E-mail solution (Sendmail/Cyrus IMAP Murder cluster, distributed openLDAP directory, Canit-Pro – Mimedefang, Horde).