Andreas Wißkirchen
Freelancer
Experience
Freelancer
Infrafibre Networks GmbH
- Situation analysis (planning status / expansion status) of the so-called inter-polygon routes
- Creating an end-to-end project plan for each route, considering active and passive components and tasks
- Monitoring and controlling the plan implementation
- Optimizing the chosen network architecture
- Creating network and splice plans
Senior IP network planner
Deutsche Giga Access GmbH
- Planning, building and further developing a state-of-the-art telecommunications network as the basis for all products
- Evaluating and testing technologies and vendors and developing scalable, cost-efficient and flexible network concepts
- Further development and optimization of networks and technical development of new service offerings
- Configuring and optimizing the backbone and access network infrastructure, including the data center platform
- Developing, designing and documenting network concepts for the relevant network layers
- Analyzing market technology trends and evaluating possible use cases
- Responsible for the functional and capacity development of the different network layers
- Responsible for the technical implementation of the developed concepts in cooperation with upstream providers, vendors and colleagues from other departments
- Supporting operations and program management with technical questions
- Keeping up with current developments and trends in networking (software-defined data center/networking, automation, seamless MPLS etc.) and evaluating these technologies and products
- Creative and integrated planning of site connections via fiber-based IP solutions
- Creating connection and network concepts
- Advising on technical issues related to backbone planning (connecting expansion areas via fiber or leased bandwidth to the backbone)
- Commissioning the core ring with Juniper MX10003 in the Frankfurt, Hannover and Düsseldorf locations
- Building backbone documentation using the free tool Netbox
- Joining RIPE NCC membership and requesting an AS number and an IPv6 address range for DGA and NorthernAccess
- Concept and planning of several expansion areas
- Creating a management network concept (DCN) for DGA including IP address planning, device selection and procurement
- Taking over 7,196 IPv4 addresses
Project Manager Backbone / Senior Project Manager Backbone
Deutsche Glasfaser Wholesale GmbH
- Implementing and planning backbone connections for the FTTx areas of Deutsche Glasfaser, especially residential and commercial areas
- Monitoring and coordinating the status of individual projects, and managing backbone resources and staff
- Setting up and implementing planning and documentation systems
- Creating connection concepts at passive and active network layers, including WDM planning
- Negotiating contracts for backbone connections with other carriers
- Forecasting and budget planning as well as project controlling in the area of backbone structures
Expert Technology Upstream Portfolio Broadband and IP in Technical Requirements Management
Telekom Deutschland GmbH
- Leading projects with up to 40 staff from various corporate units for the nationwide rollout of products and technologies across the entire Telekom group
- Acting as safety and evacuation officer
- On-time commissioning of a new system with error-free and complete data migration from the legacy system; adhering to the set budget and generating valid reports
- Developing a savings concept to free up about 5.5 million IPv4 addresses and reconfiguring the network without customer impact
Expert Technology Upstream Portfolio Broadband and IP at T-Home Head Office
Telekom Deutschland GmbH
- Taking full responsibility for various technical projects and subprojects with up to 25 staff from different organizational units
- Acting as safety officer
- Maintaining intranet pages
- On-time rollout of a system within the set budget and producing valid reports
- Smooth site relocation in 2009 from Bochum to Bonn
Consultant VLM Broadband, THS & IP in Technical Infrastructure, National Branch
Telekom Deutschland GmbH
- Assumed responsibility for multiple technical projects and subprojects with up to 25 employees from different organizational units
- Served as safety officer
- Maintained the department's intranet pages
Consultant Systems Engineer in Technical Infrastructure, West Branch
Telekom Deutschland GmbH
Responsible systems engineer for the Düren region
Served as laser safety officer
Acting as deputy team leader for all technical and personnel matters for a team of 18 employees
Supported network technicians with complex faults
Implemented complex new systems in the assigned technical area
Assisted network technicians in installation and commissioning, including providing training, and supported the operation of customer connections
Advised sales on technical customer inquiries and developed problem solutions
Requested and coordinated support services under framework agreements with manufacturers or internal units
Scheduled appointments with manufacturer service teams for troubleshooting and change measures
Provided technical support for construction measures
Prepared and forwarded reports on operational impairments and widespread outages
Maintained the branch's intranet servers
Received a bonus for a suggestion that improved efficiency and simplified DCN structures
Timely migration of the old DCN to the new Z-DCN network
Successful recertification as a network administrator according to DIN EN ISO/IEC 17024
Network Technology Administrator in Technical Infrastructure, West Branch
Telekom Deutschland GmbH
Responsible systems engineer for the Düren branch and region
Ensured the operation of transmission technology
Built and expanded the Q- and X-DCN networks for the Düren branch
Received recertification for CCNA
Received the network administrator certificate according to DIN EN ISO/IEC 17024
Operations Technician for Transmission Technology in Technical Branch Düren
Telekom Deutschland GmbH
Responsible systems engineer for the Düren branch
Operated transmission technology
Built and expanded the DCN networks
Successfully activated 70 network elements in Cologne and 20 network elements in Bonn for the SDH2000+ network by volunteering on weekends
Timely commissioning of the management networks for connecting customers to the ADSL network
Successful completion of the pilot of a specialist profile for the new IT training system together with the Fraunhofer Institute for Software and System Technology
Network Management Associate in Technical Branch Cologne
Telekom Deutschland GmbH
Managing and controlling orders
Monitoring, processing, and coordinating appointments
Managing escalations
Timely provision of transmission paths
Successfully applied for CCNA training
System Operator MVS/OS/390 in Computer Service Management
Telekom Deutschland GmbH
Converted proprietary console systems to a server-based system with zero downtime
Enabled remote access capabilities
Eliminated on-call trips to the data center
Staff Member in Network Management at the Magdeburg Technical Branch
Telekom Deutschland GmbH
Initial entry of all data for sites at the Magdeburg telecom office into the REBELL (BS2000) IT system until August 1994
Awarded a bonus for completing data entry on time with a low error rate
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Telecommunication (32.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (26 years), Project Management (17.5 years), Operations (16.5 years), and Product Development (8 years).
Skills
- Operating Systems: Windows Family Including Windows 11, Linux/unix, Os/2, Os/390 And Mvs
- Databases: Microsoft Access And Mysql/mariadb
- Programming Languages: Microsoft Vba, Perl, Python, C, Html, Css And Php
- Networks: Transmission Networks Based On Fiber Or Copper Technology (Sdh & Pdh), Xdsl Transmission Techniques, Wdm, Firewalls, Fttx And Lan/wan Technologies (Gpon, Xgs-pon Etc.)
- Protocols: Tcp/ip (Ipv4 And Ipv6), Routing Protocols Like Is-is, Ospf, Eigrp And Bgp; Clnp/clns; Mpls; Frame Relay; Atm; Ethernet; Token Ring; X.25; Qd2; Snmp; Wireless Lan; Voip (Sip); Gre And More.
Languages
Education
Deutsche Bundespost - Telekom
Vocational training as Communications Electronics Technician, Telecommunications branch, technical high school diploma · Communications Electronics Technician, Telecommunications branch · Germany
Certifications & licenses
Building Scalable Cisco Internetworks (BSCI)
Cisco Systems
Certification as Safety Officer
Unfallkasse Post und Telekom
Recertification for CCNA
Cisco Systems
Recertification for Network Administrator
Recertification for CCNA
Cisco Systems
Certification as Network Administrator
Certification as CCNA
Cisco Systems
Profile
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