Quality of Service Expert in Germany
in minutes from over 15.000 CVs with the power of AI.Hire experts who optimize network traffic, configure enterprise routers, and implement traffic shaping policies to guarantee uptime for critical business systems. Get matched with vetted, available freelancers ready to support your infrastructure needs in Germany.
Meet FRATCH Experts in Germany, who have recently used Quality of Service
Waseem Sattar
Last position:
Solution Architect / Subject Matter Expert at FRMCS terminal device manufacturer
Participation in the EU-funded MORANE-2 project to validate the Future Railway Mobile Communication System (FRMCS) in real-life use cases: creation of the requirement specifications for TOBA as well as the associated test specifications.
Technologies: 5GS (Radio & Core), FRMCS, MCx (MCPTT, MCData, MCVideo), MC Gateway UE, MCx Priority/Security/QoS Management, ETCS, SIP, IMS
Mario Pucko
Last position:
Senior IT Project Manager / Program Lead – Network Strategy 2030 at ALDB GmbH
- Holistic responsibility for modernizing and expanding federal networks and upgrading critical data center and telecom infrastructure in the high-security agency environment of BDBOS
- Planning and management of the expansion of national BOS network infrastructure in the VS-NfD/KRITIS environment with technical decision authority at the architecture and component level (Cisco, Layer 2/3, WAN redundancy)
- Planning, tendering (EVB-IT/UVgO) and oversight of the upgrade of security-critical telecom infrastructure for emergency call 110/112 (ACD)
- Capacity planning, rack integration, structured cabling, power supply, cooling concept (CRAC/In-Row) and DCIM monitoring for data center expansion
- Building the IT department from scratch: structures, governance, processes, team recruiting, vendor selection and long-term IT strategy
- Planning and managing infrastructure and application migrations: migration strategies, batch planning, hypercare stabilization and rollback concepts
- Creating vendor-neutral specifications (telecom systems, signature solutions) according to EVB-IT and UVgO; contract award and vendor management
- Setting up a secure IT environment according to BSI basic protection, ISO 27001 and VS-NfD; developing IT security concepts and CMDB analyses
- Hands-on program leadership: decision papers for management and steering committees, risk management, reporting and change request control
Julian Wendel
Last position:
Renewal of the active network infrastructure
As part of this project, the existing active network infrastructure was modernized and aligned for the future. The goal was to introduce a high-performance, secure, and scalable network and WLAN infrastructure, including a Network Access Control (NAC) solution to improve network security and central access control.
At the start of the project, a comprehensive requirements analysis was carried out, taking into account the technical, operational, and security-related needs of the clinic sites. Based on this, a technical tender was prepared for new switches, WLAN access points, and the NAC solution.
By successfully delivering the project, a modern, standardized, and secure network infrastructure was established that meets the growing demands for availability, mobility, and IT security in clinical operations.
Tasks:
- Support of the tender process, including technical evaluation of the offers and bidder assessment
- Lead and coordinate the entire project delivery
- Align the project process with internal stakeholders, business units, and the hospital IT team
- Manage external service providers during implementation and installation of the systems
- Monitor implementation, including quality control, project acceptance, and issue management
- Coordinate communication between hospital IT and external service providers during the NAC implementation
- Carry out escalation management for technical and organizational challenges
- Ongoing budget tracking as well as monitoring of project effort and additional costs
- Prepare decision papers on project changes, additional services, and risks for management
Ulf Haase
Last position:
Configuration Manager (Interim) at In-house Development
- Requirements analysis and replacement of local SharePoint as CMDB with open source NetBox to prepare for deploying Cisco ACI (SD-WAN) with Microsoft Azure
- Coordination with systems like Checkmk and Grasp
- Introduction and coordination of cmdbsyncer as CMDB data hub; further development of the syncer with Kuhn & Ruess GmbH
- Implementation of SNMPv3 on AIX LPAR/VIO, Linux, Windows, SAN/storage, network components (Cisco switches, F5 load balancers, Palo Alto and CheckPoint firewalls, iLO boards)
- Deployment and further development of the network scanner JDisc in cooperation with the vendor (Utimaco HSMs, Linux detection)
- Integration of NetBox, JDisc, and cmdbsyncer into the infrastructure using Docker containers
- End-user training: preparation, creation of materials, and delivery
- Creation of data flow and network diagrams
- Population and planning of IPv4/IPv6 with NetBox including VLAN import
- Dual-stack setup of servers and clients with IPv4 and IPv6
- Connection of REST interfaces for Checkmk, JDisc, vSphere, HMC, i-doit, NetBox Software: Confluence, Jira, MS Office 365, Teams, i-doit, NetBox, JDisc, cmdbsyncer, DB Visualizer, vSphere, HMC
Mustafa Kederoglu
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 markets area in a complex interface and outsourcing environment.
Created component specifications, a catalog of measures and an implementation plan.
Ensured proper integration of the developed results in line 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 the 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 improvements to ensure efficient resource use and acceptable response times for users.
Provided network support in a financial services organization and prepared operational changes 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 the role of network architect for medium to large projects involving team resources.
Konstantinos Metaxas
Last position:
IT-Fly Specialist – Global Rollout at Lufthansa Group
Plan & Prepare (Site Design & Readiness): Inventory & Design: Dell PowerEdge R-Series, Aruba switches (L2/L3), notebooks/peripherals; serials/asset tags, IPv4/IPv6 addressing, VLAN-/DHCP-/DNS plan
Runbooks/MOPs: site rollout runbook, backout strategy (<15–30 min), risk register, communication matrix; approvals via CAB/change
Images/Packages: Golden Image (Win10/11), driver packs, BIOS/UEFI baseline; O365/Teams/OneDrive KFM; BitLocker policies; MECM/SCCM, Intune/Autopilot, MDT/WinPE
Logistics: shipping/customs clearance, RMA/DOA, on-site spares; tools (barcode scanner, label printer), "Go-Bag" (cables, SFPs, console cables)
Deliver (on-site implementation): End devices: swap & migration (USMT/OneDrive KFM), peripherals (ATB/BT printers, scanners, boarding gate hardware); domain join, compliance checks, O365 activation, printers/queues, network drives
Acceptance: functional tests for DCS/CUTE/CUPPS/CUSS stations, ticketing/check-in workflows, boarding gates
Server (R-Series): rack & stack, cabling (PDU redundancy, fiber/copper), labeling/naming; firmware/RAID (PERC), Lifecycle Controller, iDRAC network; Windows Server 2022/2025 + CIS/BSI hardening; agents (backup/AV/EDR/monitoring), time service/NTP auth, Syslog/SNMPv3
Network (Aruba): VLANs, LACP trunks, MSTP root; PortFast + BPDU Guard at the edge; QoS (EF/AF); dual stack (v4/v6), DHCP relay. NAC/802.1X with ClearPass/Radius/TACACS+, roles + MAB fallback; guest isolation, ACLs (Guest→Mgmt deny). Telemetry: sFlow, SNMPv3, Syslog→SIEM; LLDP→inventory/CMDB
Airport specifics: CUTE/CUPPS/CUSS terminals; DCS/Amadeus/SITA connectivity; FIDS (read-only); bag tag/boarding pass printing; changes in off-peak/night windows
Stabilize (hypercare): first-day support, KPI tracking (login times, ticket volume, error classes), QoS fine-tuning
Troubleshooting: Wireshark/iperf, event logs, switch counters, sFlow flows; fast incident handling as SPOC
Knowledge transfer: short training sessions for station teams, mini-runbooks (fault/recovery)
Close (documentation & handover): docs & CMDB: final configs (switch/server), topology/patch plans, IP tables, serial/asset lists, before/after photos
Acceptance & sign-off: UAT protocols, functional evidence (use cases), return/reuse of old hardware
Lessons learned: risks, standard packages, driver freeze, "known issues"
Interfaces/communication: station IT, airport IT, SOC/NOC, ground ops/ramp/check-in, provider (SITA/Amadeus). ITSM: ServiceNow (Inc/Req/Change/KB), handover to BAU
Timon Ringwald
Last position:
Database Developer – Research Project – Healthcare Billing at MeQuEn GmbH
- Optimizing dynamically generated databases for logging
- Tools: MariaDB, C#, Visual Studio, VMs, Docker, Windows, Linux
Minh Duc Vu
Last position:
Senior System Engineer Network & Security at F.S. Fehrer GmbH & Co. KG
- Responsible for configuring, maintaining, monitoring, troubleshooting, and optimizing the IT infrastructure, including Extreme Networks, SD-WAN, and Fortinet security solutions, at all international company locations in Europe and North America
- Developed a comprehensive strategic roadmap to optimize network architecture, including VLANs, NAC, QoS, firewall configurations, VPNs, DPI, NGFW, threat intelligence, and SSL/TLS inspection
- Implemented the OneIT strategy by introducing new technologies such as Cisco DNA Center, ExtremeCloud IQ, FortiOS, FortiManager, and FortiAnalyzer, boosting staff expertise and IT system efficiency
- Integrated IT and OT systems to optimize network and security architecture and improve operational efficiency
Hisham Elsharawy
Last position:
System Engineer Network & Security at Isringhausen GmbH
- Operation, maintenance and administration of the global network & security system landscape
- Troubleshooting and support in 2nd & 3rd levels and provide technical advice to other dept.
- Configuration of complex LAN/WAN/SD-WAN and WLAN network infrastructures (N5K, N9K, ASR 8000, Wireless Controller WLC9800, AP C91xx and VMware Velo Cloud)
- Control of external service providers as part of service and escalation management
- Implementation and monitoring of system updates (software upgrades, minor/major changes)
Matthias Weigel
Last position:
Self-employed at maweos GmbH
Valentin Oprea
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
Martin Frlička
Last position:
IT Security Consultant at Freelance
Karoly Balint
Last position:
Fortinet FortiGate 7.4 Administrator at Fortinet
- The FortiGate 7.4 Administrator exam badge recognizes expertise in FortiGate administration. The badge earner has demonstrated knowledge of FortiGate configuration, operation, and day-to-day administration.
Sonja Kvas Stillhard
Last position:
Owner at SKS Consulting UG
- Strategic account management for global intra-group accounts (>10,000 employees)
- Account management for various direct customers in DACH
- Demand, expectation, and escalation management
- Solution design / presales and sales activities
- Business development in the DACH region
- Strategic negotiation of framework agreements and SoW's
- Single point of contact / interface between customer and delivery organization
- Monitoring and analysis of KPIs, initiation of measures
- Support for service and project managers, people management
Hellmuth V. Künsberg
Last position:
Embedded Software Architect / Team Coordinator at Provider of system solutions in the field of electric drives
- Analysis and inventory of a system consisting of 2 control units
- Creation and derivation of the static software architecture
- Optimization and standardization of structures for model-based control
- Creation of the dynamic software architecture
- Development of improvement proposals in workshops with the customer
Discover over 15,000 top freelancers
Statistics of experts using Quality of Service
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
3.1 years
Positions per freelancer
11
Top business areas
Information Technology, Operations, Project Management
Top industries
Information Technology, Telecommunication, Energy
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
87%
Master's degree or higher
67%
Certifications per freelancer
6
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Germany using Quality of Service
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Managing Network Performance in Modern Infrastructures
Quality of Service protocols manage data traffic to reduce packet loss, latency, and jitter on congested networks. Professionals in this field configure network devices to prioritize critical data flows over less time-sensitive traffic. This ensures that essential business applications run smoothly without interruption.
Key Areas for Quality of Service Implementation
- Enterprise VoIP and unified communications systems
- High-frequency financial trading networks in Frankfurt
- Industrial IoT and automated smart manufacturing lines
- Cloud migration projects requiring dedicated bandwidth allocation
- Multi-site corporate WAN and SD-WAN architectures
Essential Tools and Technologies
Specialists work with a wide range of hardware and software solutions to enforce traffic policies. They configure Cisco, Juniper, and Huawei routers using technologies like Differentiated Services, Integrated Services, and Class of Service. They also utilize network monitoring tools to analyze traffic classes and adjust queuing algorithms.
Why Companies Bring in Freelance Network Specialists
Setting up traffic prioritization requires highly specialized knowledge that internal IT teams often lack. Freelancers are brought in during major infrastructure upgrades, migrations to cloud environments, or when recurring performance issues disrupt daily business operations. They provide immediate relief by diagnosing bottleneck sources quickly.
Characteristics of Top Network Experts
Strong professionals possess deep knowledge of networking protocols, routing, and switching. They hold advanced industry certifications and have hands-on experience with traffic policing, shaping, and congestion avoidance mechanisms like Weighted Fair Queuing. Excellent communication skills are vital for translating business requirements into technical traffic classes.
Network Infrastructure Requirements in Germany
German enterprises across automotive, finance, and logistics sectors rely on stable digital infrastructure to maintain global competitiveness. Local experts understand the regulatory landscape regarding data privacy and security while optimizing network pathways. They ensure high-capacity links remain stable between regional offices and centralized data centers.
Frequently asked questions
What clients ask us most about Quality of Service — answered in short.
A specialist in Quality of Service configurations analyzes existing network traffic patterns to identify bottlenecks and latency issues. They design and implement queuing policies, traffic shaping, and classification rules on routers and switches to prioritize business-critical applications.
While increasing bandwidth provides more capacity, it does not guarantee priority for real-time applications during peak traffic spikes. Implementing Quality of Service mechanisms ensures that latency-sensitive traffic like voice and video calls always takes precedence, even over a congested link.
Professionals utilize protocol analyzers, network performance monitors, and traffic generators to validate QoS settings. Common tools include Wireshark, Cisco Prime, and SolarWinds to capture packets, measure jitter, and verify that routing policies are active.
A strong network professional should have deep knowledge of routing protocols, firewall configuration, and SD-WAN technologies alongside Quality of Service expertise. Certifications from major hardware vendors like Cisco or Juniper are also highly valuable indicators of skill.
Yes, most Quality of Service analysis, configuration, and troubleshooting tasks can be performed remotely via secure network access. However, some companies in Germany prefer hybrid models when initial physical audits of data center hardware or local local-area networks are required.
A standard project to implement Quality of Service policies in a medium-sized enterprise network typically takes a few weeks. The timeline depends on the complexity of the routing topology, the number of office locations, and the diversity of applications running on the network.
German industrial companies, especially in manufacturing and automotive sectors, rely heavily on real-time data communication for automated production lines. Implementing robust Quality of Service configurations ensures that critical machine-to-machine data flows are never disrupted by general office traffic.
You can assess a candidate by reviewing their previous project portfolio focusing on complex routing deployments. Asking them to describe a past scenario where they successfully resolved jitter or packet loss on a congested network will demonstrate their practical Quality of Service troubleshooting abilities.
The average hourly rate of freelancers in Germany who have used Quality of Service in their recent projects is 100 €, which corresponds to a daily rate of about 799 € based on an 8-hour working day.
Of the freelancers in Germany who have used Quality of Service in their recent projects, 87% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers in Germany who have used Quality of Service in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 3.1 years.
The most common languages among freelancers in Germany who have used Quality of Service in their recent projects are German (100%), English (100%), and Spanish (14%).
The most common industries among freelancers in Germany who have used Quality of Service in their recent projects are Information Technology (76%), Telecommunication (48%), and Energy (43%).
The most common business areas among freelancers in Germany who have used Quality of Service in their recent projects are Information Technology (90%), Operations (76%), and Project Management (71%).
Main locations of FRATCH Experts, who have recently used Quality of Service
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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Philipp Thomaschewski
FRATCH CEO
