IS-IS Experts in Germany
, matched in minutes by AI from over 15,000 CVsHire experts who design and operate scalable IS-IS routing domains, tune link-state convergence and integrate service-provider networks with BGP, MPLS and Segment Routing. FRATCH connects you with vetted, available freelancers whose experience fits your network and project needs.
Meet FRATCH Experts in Germany, who have recently used IS-IS
Andreas W.
Last position:
Freelancer at Infrafibre Networks GmbH
- Determining the current status (planning status / expansion status) of the so-called interpolygon routes
- Preparing an end-to-end project plan for the individual routes, taking active and passive components and activities into account
- Monitoring and controlling plan implementation
- Optimizing the selected network architecture
- Creating network and splice plans
Mustafa K.
Last position:
Senior Network Design and Engineer at Helaba
Designed and specified the technical network integration of a new business critical application system (MUREX) in the capital market area in a complex interface and outsourcing environment.
Created component specifications, catalog of measures and implementation plan.
Ensured proper integration of developed results in accordance with the bank’s framework: IT compliance, IT security, change and release management.
Selected and integrated a new service provider for the bank; moved critical bank applications to the provider.
Designed, implemented and supported the new Cisco network and Fortinet security setup at the service provider data center.
Acted as technical interface between bank, service providers and consulting partners.
Supported and further developed the network and security infrastructure (clients, servers, networks); performed error analysis and implemented solutions within agreed service levels.
Analyzed and diagnosed all security and network failures, glitches and malfunctions.
Initiated continuous enhancements to guarantee efficient resource utilization and acceptable response times to users.
Provided network support in financial service organization and operational change preparation on production banking network infrastructure for both large and small projects within strict change management discipline.
Designed, defined, tested, governed and improved engineering standards.
Performed role of network architect for medium-large projects involving team resources.
Valentin O.
Last position:
Network Architect at IT Service Provider - Public Sector
- Designed a network management strategy focused on NetDevOps principles and model-driven telemetry using YANG data models
- Conducted NETCONF/YANG workshops for L2VPN/L3VPN services over SRv6
- Automated configuration deployment in the testing environment with Ansible
- Developed end-to-end service measurement concepts with IPSLA and the Telegraf-Prometheus-Grafana stack
- Created the dual-stack architecture design (router + switch + firewall) including a detailed test plan; planned, executed, and documented acceptance tests for the management network
- Performed BSI IT baseline protection checks according to the IT-Grundschutz catalog (needs assessment, modeling, risk analysis, deriving measures)
- Protocols: SRv6, IPv6, MPLS, BGP, ISIS, OSPF, NETCONF/YANG, model-driven telemetry, IPSLA
- Systems: Cisco Crosswork Network Controller, SolarWinds Orion, Grafana, InfluxDB, Telegraf, Ansible, Git
- Components: Cisco NCS router series, Cisco Catalyst switch series, Cisco Firepower firewall series
Charles J.
Last position:
Network Architect at 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.
Oumarou B.
Last position:
WAN & Data Center Network Administrator at Teamative Germany GmbH
- Implementation, administration, configuration and operation of Cisco network components (PE-CE routers, provider routers, SD-WAN, switches, access gateways)
- Ensuring the availability, performance, further development and operation of the network infrastructure of the state access network WAN
- Creation of technical documentation in FNT-Command
- Troubleshooting and handling of incidents, changes, requests and problems tickets
- Tools: ITSM, Command-FNT, Orion, ASDM, Panorama
- Scripting: Bash Shell, Python, Ansible
- Protocols: IS-IS, BGP, MPLS, VRF, GETVPN, Segment-Routing, Static routing
- Devices: NCS-57C3 Series, ASR-1000 Series, ISR-4331, ISR-4451 SD-WAN, Catalyst 9k Series, Nexus 9k Series
- Firewall: Check Point, Palo Alto, Cisco ASA-5585, FWSM
Khyser M.
Last position:
Life Cycle Infrastructure Network Analyst at Hays AG
- On-site implementation and upgrade of the life cycle infrastructure for a global partner of a Hays customer.
- On-site implementation for international locations in APAC & AMER.
- Executed on-site life cycle infrastructure upgrades for sites IN-NDA, IN-MOX, US-CAX, US-MOT, CN-YAN, and IN-MOR according to customer requirements. This included project management, administration, network design, optimization, as well as planning and deploying redundant OM4 and OS2 fiber and redundant power systems.
- Designed, upgraded, and migrated data centers for the above sites, including international on-site travel to the USA and India.
- Led and oversaw the network team, providing remote and on-site support for cabling work.
- Created network documentation, including L2 and L3 Visio drawings, IP address planning, network patch plans, power plans, bayface layouts, access point layouts, ISP carrier layouts, data center planning, downtime planning and scheduling, hardware checklists, network device configuration, implementation, test plans, and proposal evaluations.
- Extensive experience with Cisco hardware, including switches (9200, 9300, 9400, 4500, 3850, and 2960 series), WLC (9800, 5505, 3504, and 2800 series APs), ASA (55xx series), and NG Firepower (1010, 1120).
- Maintained documentation, including NetBox, PRTG monitoring, RADIUS, DNS, DHCP, and KX handover sessions, troubleshooting & trainings.
- Life Cycle Technical Guide & Control
Konstantinos M.
Last position:
IT System Engineer at Client belongs to critical infrastructure
- IT infrastructure services
- IT services, networks, Exchange, Office 365 & 2016
- IT documentation
- Collaboration with external partner & managed provider
- Stakeholder management
Discover over 15,000 top freelancers
Statistics of experts using IS-IS
Aggregated from the professional profiles of matched freelancers.
Experience
26 years
Position duration
2.4 years
Positions per freelancer
14
Top business areas
Information Technology, Operations, Project Management
Top industries
Information Technology, Telecommunication, Banking and Finance
Certification focus areas
Information Technology, Project Management, Accounting
Bachelor's degree or higher
60%
Master's degree or higher
20%
Certifications per freelancer
6
Most common languages
German, English, Greek
Speak two or more languages
100%
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Germany using IS-IS
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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
IS-IS experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (86%)
- Telecommunication (71%)
- Banking and Finance (43%)
- Automotive (29%)
- Energy (29%)
- Manufacturing (29%)
- Professional Services (29%)
- Government and Administration (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Routing foundation
IS-IS, short for Intermediate System to Intermediate System, is a link-state interior gateway protocol used to exchange reachability information inside large networks. It builds a topology database and calculates shortest paths, making it well suited to resilient service-provider cores, data-centre fabrics and other environments where predictable convergence matters.
Protocol design
IS-IS separates routing into levels. Level one supports routing within an area, while level two connects areas through a wider routing domain. Its TLV-based structure allows extensions for IPv4, IPv6, traffic engineering, Segment Routing and other capabilities without changing the core protocol model.
Ecosystem and tooling
Strong work with IS-IS spans more than protocol configuration. Specialists commonly use:
- BGP for external reachability and policy control
- MPLS and Segment Routing for engineered forwarding paths
- NETCONF, YANG and automation tools for repeatable changes
- Packet captures, route analysis and telemetry for troubleshooting
They may also work with vendor platforms from Cisco, Juniper, Nokia or other network equipment providers. Familiarity with operating-system routing stacks and network simulation tools helps when designs must be tested before deployment.
Where companies use it
Companies bring in IS-IS expertise when they are building or reshaping a backbone, consolidating routing domains or migrating from another interior protocol. It appears in telecommunications, cloud connectivity, internet exchanges, transport networks and large enterprise infrastructures. In Germany, projects may involve distributed sites, strict operational processes and collaboration between local teams and remote specialists.
When specialists help
Freelance expertise is useful when internal teams need focused capacity for a routing change, network audit or complex incident. Typical assignments include:
- Designing areas, adjacencies, metrics and route policies
- Introducing IPv6, MPLS or Segment Routing into an existing core
- Investigating flaps, slow convergence and inconsistent databases
- Automating validation, configuration and compliance checks
A specialist can document decisions clearly and leave behind tested procedures that the permanent team can maintain.
What good work looks like
A strong professional understands both the protocol and the operational system around it. They validate topology assumptions, control redistribution between IS-IS and BGP, protect the routing domain during maintenance and define rollback paths before making changes. Quality also shows in clean diagrams, observable metrics, vendor-aware testing and communication that works across on-site and remote teams. German-language collaboration can matter for local operations, while technical documentation may remain in English.
Frequently asked questions
Everything clients usually want to know about IS-IS, in one place.
IS-IS is used to route traffic within a single administrative network, especially in service-provider backbones and large infrastructure environments. It maintains a link-state view of the topology and selects paths based on configured metrics. Teams also use it with MPLS, traffic engineering and Segment Routing.
IS-IS and OSPF are both link-state interior gateway protocols, but they organize their data and areas differently. IS-IS uses a flexible TLV model and runs directly over the data-link layer, while OSPF is carried inside IP. The right choice depends on platform support, operational familiarity, scale and the extensions required.
A capable IS-IS specialist usually understands BGP, MPLS, Segment Routing, IPv6 and network automation. They should also be comfortable with vendor operating systems, telemetry, packet analysis and change management. Knowledge of routing policy is essential when internal and external protocols interact.
The required background depends on the risk and scope of the assignment. A controlled lab design may need protocol knowledge and testing discipline, while a live backbone migration calls for proven work with adjacencies, redistribution, convergence and rollback planning. Ask for evidence of comparable network changes rather than relying only on a tool list.
Much IS-IS work can be completed remotely through secure access, lab environments, documentation and coordinated maintenance windows. Physical access may still be needed for hardware changes, cabling or incident response. German-language communication can support local operations, while many routing documents and vendor references are written in English.
Ask the specialist to explain the topology, level design, metric strategy and failure behaviour in plain language. Good IS-IS work includes a tested change plan, observable success criteria, clear rollback steps and documentation of redistribution boundaries. A practical review of diagrams and sample troubleshooting logic often reveals more than certifications alone.
IS-IS can be a strong fit when a network needs a scalable link-state core, flexible extensions or a routing protocol that is independent of the IP layer. It is often weighed against OSPF and, in some environments, vendor-specific approaches. Existing expertise, interoperability and migration effort should guide the decision.
Troubleshooting IS-IS commonly starts with interface state, adjacency formation, authentication, area and level relationships, and database consistency. Specialists then inspect metrics, route installation, redistribution and convergence after a failure. Packet captures, operational logs and topology telemetry help separate a protocol issue from an underlying link or configuration problem.
The average hourly rate of freelancers in Germany who have used IS-IS in their recent projects is 99 €, which corresponds to a daily rate of about 791 € based on an 8-hour working day.
Of the freelancers in Germany who have used IS-IS in their recent projects, 60% hold at least a Bachelor's degree and 20% hold at least a Master's degree.
On average, freelancers in Germany who have used IS-IS in their recent projects have 26 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Germany who have used IS-IS in their recent projects are German (100%), English (100%), and Greek (14%).
The most common industries among freelancers in Germany who have used IS-IS in their recent projects are Information Technology (86%), Telecommunication (71%), and Banking and Finance (43%).
The most common business areas among freelancers in Germany who have used IS-IS in their recent projects are Information Technology (100%), Operations (100%), and Project Management (71%).
Main locations of FRATCH Experts, who have recently used IS-IS
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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