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$80 USD / hour
Flag of NLFlag of NL
$80 USD / hour
It's currently 11:40 AM here
Joined July 14, 2009
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Faissel T.

@castler

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$80 USD / hour
Flag of NLFlag of NL
$80 USD / hour
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Systems & Network Specialist

Offering more than 20 years allround experience in systems and network administration with focus on security. Ranging from onsite to remote project deployment in teams or standalone. I work also for high profile / sensitive clients where trust is key. As a secondary i am also experienced in technical writing of product or service documents including technical articles for internal or external publishing. Clear communication and longterm commitment with my clients are priority. I'm fluent in English and Dutch, the latter is my primary native language. I am over the years working more remotely and starting to use my freelance account as an added source of work. I previously used freelancer in employer mode for some projects in the past. Looking forward to provide the best solutions and create a reputable relationship with my clients. Below is a general list of specific type of software / services / products / hardware which are within my expertise and with an eye for secure deployment / operation: Please note that not everything is listed here, but just to give an idea of my knowledge and experience for your projects. Operating systems: - BSD & Linux (several major versions / flavors) Exampe: Debian, Ubuntu, Centos, Fedora, Redhat, *BSD - Windows Server series Example: 2012 R2, 2016, 2019 (Standard, DC, Essentials where appropriate) Wide range of deployment environments / service specific / provider level: Example: HA clusters, Hosting , VPN, Storage, Cloud (farms), Backup, PBX, Networking (local, site to site, global), Email, Virtualization (KVM, Xen, VMware) ... Hardware: Most major hardware suppliers like Dell, HP, Cisco and others. Including hardware loadbalancers, firewalls, routers ... Software: list below is not complete: Web specific / Controlpanels / All in one packages etc: - Nginx, Apache, Litespeed, Litettpd, HAProxy, Traefik, Caddy, Tomcat - XAMPP, ISPConfig, Webmin, VestaCP, MyVestaCP, HestiaCP, Plesk, CPanel, DirectAdmin, Jetty, Tor custom hosting ... Data / Communication / Distributed ... - Email (Postfix, Exim, MS Exchange), DNS (Bind, PowerDNS, Unbound ...), (S)FTP(S) solutions, IPFS, Tor, MySQL, MariaDB, PostgreSQL, MSSQL, CDN solutions (private custom setup and public CDN services) Networking (wired / wireless) / VPN / Proxy ... - Networking fundamentals, deployment, troubleshooting, remote / onsite - Wireguard, OpenVPN, (IPSEC), Squid, Privoxy, Tor, Danted ... Other services include consultancy as part of larger projects in teams where everyone provides a specific type of service or practical / hands on advise. Remote system administration services: Based on agreement i can provide remote hands administration, security, routine updates, performance checks / tuning and other related services depending in which type of environment and requirements. This also includes a SLA in relation to hours, standby service, response time.
Freelancer
System Administrators
Netherlands

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Experience

IT Consultant

Founder / Self-Employed
Jan 2005 - Present
Started in 2005 as a self-employed IT consultant on a project basis for diverse corporate and private clients. Specialist areas are system and network rollout and administration with a focus on security. As a plus also experienced in technical writing often included on request of clients describing procedures, working and assisting with technical articles where appropriate.

IT systems administrator

Interim Consultancy Agency
Feb 2001 - Jul 2005 (4 years, 5 months)
Multiple interim IT positions for medium to enterprise clients ranging from IT management, systems and network engineering to IT project team management.

Education

Engineer Technical Informatics

Hogeschool Zuyd, Netherlands 1997 - 2002
(5 years)

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Top Skills

System Admin
Linux
Web Security
Computer Security
Cloud Computing

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