Charles J.-Network Architect
Check rate
Experience
Network Architect
RedGlobal GmbH
- Configuration of Dell switches, routers, and access points.
- Troubleshooting and issue resolution.
- Extreme, Cisco and Dell switches and routers environment, Extreme A3 NAC, Extreme CloudIQ.
Network Engineer
Nemensis AG
- Provisioning of Cisco 9200 series switches.
Senior Network Architect
Primus Global
- Gathering information and transferring knowledge for Daimler Benz.
- Documentation and takeover of IT operations from the previous provider.
- Advisory role and review of CISM requests from customers to ensure compliance with company policies.
- Commissioning of Fortinet and Palo Alto firewalls, incident analysis and rule set creation.
- Architecture design role for F5 load balancers in two redundant data centers.
- Azure Cloud environment, F5 load balancer, Squid proxy, DNS, hosting, VxLAN, Checkpoint Firewall, Fortinet Firewall and MPLS WAN connections.
- Responsible for the current and future operating mode in EMEA, ASIA and North American data centers.
Manager Networks - Projects
Cognizant AG
- Operation of a nationwide network with more than 300 Cisco switches.
- Operation of Cisco Wireless Controllers and 190 Cisco Access Points.
- Analysis and troubleshooting of network issues, patching of switches, experience with the ServiceNow ticketing tool.
- 2nd Level user support.
Freelancer Network Architect
Nexperia GmbH
- Network administration of a network consisting of 140 Cisco switches (Catalyst 2960s, Catalyst 6513, Nexus 9k).
- Configuration and troubleshooting of IPAM, Cisco ASA Firepower, 140 Cisco Catalyst and Nexus switches, dual Cisco Wireless Controllers and 95 Cisco Aeronet Access Points.
- Monitoring, network troubleshooting, patching, working with Cisco Prime and SOLIDSERVER IPAM.
Freelance Senior Network Engineer
QSC
- Rolled out 3800 switches to 1100 branches of a bank as part of a team.
- Tools used: HP Service Manager 9, iTOP, SMC, Bluecat IPAM.
Network & Security Administrator
Questax GmbH
- Administration of Juniper VPN gateways and PRTG.
- Administration of Microsoft PKI, creation and revocation processes for certificates.
- Troubleshooting and resolution of PKI, SSL, proxy, authentication, and network events using traceroute, ping, CA tools, and AD tools.
- Working with Helpmatics & Landesk Incident Systems Management Tool.
Network Architect
Reutax AG
- Analysis of network and security requirements to create firewall rules in accordance with company policies.
- Development of network and performance solutions for data center migration purposes.
- Creation and updating of network documentation for a data center migration project in a Europe-wide MPLS network.
- Participation in daily and weekly project meetings and conference calls.
- Troubleshooting with Wireshark, Tcpdump, nslookup, dig, ping, and traceroute; ticket processing with Remedy.
Network Specialist
NSCglobal GmbH
- Documentation of routers and switches (15 000 ports), VLANs, and gateways in customer branches using Visio and Excel.
- Adjustment of distribution L3 and access switch configurations according to technical guidelines.
- In-depth knowledge of dot1x, RADIUS, TACACS, QoS, VTP, and Spanning-Tree on Cisco switches (Catalyst 2960, 3560, 3750, 4500, 6509).
- Network management with Spectrum, Cisco Network Compliance Manager, AdminGate, and SharePoint.
Senior Network Architect
Avance Consulting Ltd
- Conducted compatibility tests on two Cisco 6513 and HP 5424 switches for an energy company in Hamburg.
- Network design for a data center migration project and implementation of routing and switching to connect four data centers using BGP and OSPF.
- Configuration of redundant Cisco 6513 switches with VSS and EtherChannel to HP switches and Cisco 4500 switches in the laboratory for compatibility and failover scenarios.
- Configuration of Cisco Nexus 5596 in Fabric-Path and Cisco ACE 4710 in a redundant setup across two HA data centers.
- Creation of high-level and low-level network design documents using Visio and MS Word.
- Review and creation of the Bill of Materials (BOM).
- Management of four data centers.
Network Consultant
Lorah Technologies Ltd
- LAN design for companies.
- Implementation of WAN infrastructure for customers.
- Configuration of routing protocols (OSPF, EIGRP) on Cisco routers.
- Configuration of switching protocols on Cisco switches.
- Setup of VPNs for customers using Cisco ASA 5500 firewalls.
- Installation, configuration, and implementation of Windows 2008 R2 servers and VMware.
- Telephone customer support.
Telecommunications Specialist
Amway GmbH
- IOS software upgrade on 150 Cisco routers and 200 Cisco switches at 20 European branch offices.
- Network design (LAN/WAN) and implementation of IT infrastructure for a new branch in the UK.
- Redundant configuration of Cisco routers (primary connection MPLS/BGP, secondary connection IPsec/VPN, BGP/EIGRP).
- Configuration of STP, VLAN, Port-Channel, QoS on Cisco switches (Catalyst 4000, 3560, 3750, 2960-24TS).
- Configuration of QoS, PBR, NAT, access lists on WAN routers (7206-VXR, 7000, 4500, 3660, 3800, 2600, 1600, 1721-VPN, 1800, 2821).
- Administration of 50 Riverbed 1050 Steelhead WAN optimization devices.
- Support of three data centers, installation of network components in racks.
- Network management and monitoring with SolarWinds, Nimbus, NetFlow.
- Change management with Remedy, documentation with Visio and MS Office.
- Data center administration.
Senior Network Engineer
itk network GmbH
- Technical consulting for the pre-sales and network departments.
- Review of customer RFPs and development of technical WAN solutions, approval of solutions.
- Configuration of routing protocols (BGP, OSPF, EIGRP, RIPv2), MPLS VRFs, MBGP.
- Design of MPLS/WAN solutions (Hub-&-Spoke, Full-Mesh), documentation with Visio.
- 3rd-level support (WAN) in a team of six colleagues.
- Troubleshooting of routing, IOS software, and router hardware problems.
IT Support Specialist
Nruns AG
- Configuration and administration of file and print services, MS DHCP, DNS, GPO, RADIUS, IIS, MS Exchange 2003.
- Configuration and commissioning of Windows 2003/2000 servers.
- Administration of Active Directory domains.
- Operation and creation of security rules on the Checkpoint NGX firewall (R65) in cluster mode.
- OS and application software image creation with Acronis, installation/configuration of Sophos antivirus, data backup to DLT tapes.
- Operation of the VoIP infrastructure (Cisco IP Phones, Call Manager).
- Configuration of Fedora Linux and IPCop proxy servers.
- Configuration of VTP and VLANs on Cisco c3750 switches.
- Selection and evaluation of hardware, technologies, and software.
- Sales negotiations with suppliers.
- Administration of the data center and laboratory.
Data Center Network Administrator
Paragon Data GmbH
- Configuration and administration of Cisco Pix/ASA firewalls and securing customer networks with security rules.
- Connection of branch offices to the server farm in the provider network using IPsec.
- Administration of DHCP, RAS, RADIUS on Windows 2003/2000 Advanced Servers.
- Configuration and migration of 350 customer routers to MPLS in cooperation with Deutsche Telekom.
- Installation of racks and cabling of network components in the data center.
- Configuration of OSPF, ACLs, NAT, IPsec on Cisco routers (6500, 2800, 3600s).
- Configuration of STP, VLANs, Port-Channel on Cisco switches (6500, 4000, 3548-XL, 3750).
- Network monitoring with Intellipool and Nagios.
- Administration of the data center, migration of a data center.
Cisco Trainer
Nigertel
- Conducting seminars to prepare for the Cisco CCNA 2.0 exam.
- Managing the laboratory.
- Preparing training proposals.
Network Administrator
Heinrich Bauer KG
- Managing and monitoring 60 Cisco routers and 140 Cisco switches in 20 European branches and the data center as part of a team of four colleagues.
- Configuring and managing remote access on Cisco AS5300 access routers.
- Configuring, upgrading, and commissioning Cisco Catalyst switches (5000, 4000, 2948, 3548) and routers (6513 with MSFC-II, 3640, 4000, 7000 with RSM, 7206-VXR, 2600, 1600).
- Configuring routing protocols (BGP, OSPF, EIGRP), HSRP, ACL, GRE, NAT/NAPT, PPP, MPPP on Cisco AS5300.
- Cabling network components in the data center and equipment rooms.
- Administering Checkpoint NG clusters, creating firewall rules, and analyzing logs.
- Managing a data center.
System Administrator
Mondus.de GmbH
- Installing, configuring, and supporting Windows 98/2000 clients, PC hardware, and printers.
- Installing, configuring, and operating Windows NT 4.0 and Windows 2000 server domains.
- Installing and managing MS Exchange 5.5, upgrading to MS Exchange 2000.
- Installing virus scanners and MS Office 2000 on notebooks.
- Data backup with Backup Exec.
- Administering a Red Hat Linux VPN gateway.
- 1st-level support as part of a team.
Chemistry Teacher
C+K Remedial College
- Chemistry lecturer.
- Head of the Chemistry Department.
- Purchasing laboratory products.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Education, Telecommunication, Media and Entertainment, Automotive, and Manufacturing.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Procurement, Customer Service, and Human Resources.
Skills
Operating Systems: Windows 2008, 2012, 2016, 2019 R2 Servers, Windows 10 And 8.1, Debian And Ubuntu Linux
Applications/Services: Ms Office, Dns, Dhcp, Ftp, Ipsec, Bash, Python Programming Language, Putty, Ssh, Telnet, Tacacs, Radius, Visio, Wireshark, Tcpdump, Iperf, Traceroute, Ping
Networking: Routing Protocols As Well As Bgpv4, Ospf, Eigrp, Is-Is, Wan Technology As Well As Mpls (Hub-And-Spoke, Full-Mesh, Vrf), Sd-Wan, Ipsec Vpn And Dmvpn, Vrrp, Hsrp, Nat/Napt, Acl, Gre, Vtp, Stp, Vlan, Site-To-Site Vpn, Ipsec Vpn, Remote Access Vpn, Ssl Vpn, Iso/Osi And Tcp/Ip Models, Protocols As Well As Ipv6, 802.1d, 802.1x, 802.1q, 802.3, 802.11a/B/G/N, 3des, Aes, Peap, Leap, Dhcp, Ftp, Ssh, Sstp, Ssl, Ether Channel, Spanning Tree Protocols As Well As Pvst, Rstp & Mst, Vss, Fabric-Path, Vpc, Etherchannel, Ether Channel Cabling, Fast & Gigabit Ethernet Cabling, Cisco Aci (Spine And Leaf)
Hardware: Fortinet/Fortigate 7.2 Firewall, Cisco Asa Firepower And Nextgeneration Firewall, Cisco Routers Including 7000 Series, 4500, 3660, 3800, 2500, 2600, 1600, 1721-Vpn, Cisco Asr, Cisco Isr, Cisco Catalyst Switches Including Cisco Catalyst 6500 Series With Nfc, 4500 Series, 3560 Series, 3750 Series, 2960-24ts, 2800, Nexus 9000 Series, 7000 Series, 5000 Series, And 2000 Series Fex
Languages
Education
University of Lagos
Bachelor of Science Honours (Second Class) · Chemistry; minor subject: Physics, Mathematics · Lagos, Nigeria
Tai Solarin University of Education
National Certificate of Education · Chemistry, Biology and Education · Ijebu Ode, Nigeria
Ibadan Grammar School (comprehensive school)
General Certificate of Education Ordinary Level · Physics, Chemistry, Biology, Mathematics, English, Agricultural Science · Ibadan, Nigeria
Certifications & licenses
Elekluft GmbH, Hamburg
Systems Engineer / Networks
Elekluft GmbH, Hamburg
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Charles is based in Hamburg, Germany and can operate in on-site, hybrid, and remote work models.
Charles speaks the following languages: English (Native), German (Advanced).
Charles has at least 27 years of experience. During this time, Charles has worked in at least 17 different roles and for 19 different companies. The average length of individual experience is 1 year and 5 months. Note that Charles may not have shared all experience and actually has more experience.
Based on recent experience, Charles would be well-suited for roles such as: Network Architect, Network Engineer, Senior Network Architect.
Charles's most recent position is Network Architect at RedGlobal GmbH.
In recent years, Charles has worked for RedGlobal GmbH, Nemensis AG, and Primus Global.
Charles is most experienced in industries like Information Technology, Education, and Telecommunication. Charles also has some experience in Media and Entertainment, Automotive, and Manufacturing.
Charles is most experienced in business areas like Information Technology, Operations, and Procurement. Charles also has some experience in Customer Service and Human Resources.
Charles has recently worked in industries like Information Technology and Automotive.
Charles has recently worked in business areas like Information Technology and Operations.
Charles holds a Bachelor in Chemistry; minor subject: Physics, Mathematics from University of Lagos.
Charles has 5 certificates. Among them, these include: Microsoft Certified IT Professional, Cisco Certified Network Professional, and Cisco Certified Network Associate.
The availability of Charles needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 26 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Similar freelancers
Discover other experts with similar qualifications and experience
Eddy A.
Khyser M.
Tom H.
Oumarou B.
Andreas A.
Karoly B.
Szabolcs K.
Mustafa K.
Sami B.
Rudolf E.
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a Network Architect
Eddy A.
Hisham E.
Christian E.
Pascal F.
Ulf H.
Florian K.
Valentin O.
Jin-Ho Y.
Minh Duc F.
Christian D.
Nearby freelancers
Professionals working in or nearby Hamburg, Germany
Patrick M.
Oliver V.
Antonia G.
Philipp S.
Jens L.
Michael S.
Serkant T.
Mahmoud Q.
Yashar S.
Volkmar S.
