DNS Experts in Cologne
from over 15,000 CVs with fast, precise AI matchingHire experts who design reliable name resolution, manage authoritative and recursive services, and secure domain infrastructure with DNSSEC. FRATCH matches you quickly with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Cologne, who have recently used DNS
Markus B.
Last position:
Consultant, Technical Project Manager at Lanxess
- Project: ESU Windows and SQL Server Consolidation / Configuration Management in ServiceNow
- Prepared an as-is analysis of all servers worldwide
- Prepared an as-is analysis of all SQL servers worldwide
- Conducted requirements analyses for SQL and server migrations
- Coordinated requirements with partners for migrations to Hyper-V (on-premises) or Azure Cloud
- Facilitated regular status meetings (Jour Fixe)
- Developed roadmaps and solution models for server migrations
- Set up test scenarios
- Facilitated workshops for the rollout of a global admin team
- Designed data models (CMDB) in ServiceNow
- Led workshops for the CMDB data model
- Developed solution models for the CMDB
- Created end-to-end configuration documentation and work instructions for the CMDB
- Prepared reports for license management
- Defined KPIs for data quality in ServiceNow
- Created a service catalog
- Facilitated workshops to define service requests
- Acted as interface between requirements analysis and the ServiceNow development team
- Systems used: Windows 7, Windows 10, Microsoft Office 365/2010, Windows Server 20xx, SQL Server 20xx, SharePoint, Azure Cloud, Hyper-V, ServiceNow, various tools
Jens R.
Last position:
Platform Architect & Senior Developer at Direct client, industrial measurement technology, medium-sized company
- Technical leadership across hardware, firmware, and software teams; scope: hardware/firmware team (4 people) and leadership group (5 people)
- Consolidated and documented a product family that had grown over more than 15 years and aligned it with CRA compliance — from the bare-metal I/O module to the cloud interface.
- Provided the most important customer product with the essential requirements and architecture documentation within two months — for a firmware landscape that had grown over more than 15 years. It now supports the customer’s modernization strategy.
- Established a monthly reporting line to the supervisory board and executive board within three months: nine meetings since 12/2025. The report itself is versioned and built from the CI pipeline; it is based on automatically collected activity and release data instead of assessments.
- Built a container-based CI/CD infrastructure from scratch: cross-compilation, host tests, and documentation builds in one continuous pipeline.
- Introduced declarative QA gates for DevOps and development artifacts — from the start using lefthook instead of pre-commit, executed in a dedicated container image.
Technologies used: arc42, req42, tpo42, docToolchain, PlantUML, ArchiMate, C4 model, ADR, C, C++ (GTest), CMake, Bare Metal (ARM Cortex-M3/M7), OCI containers, Jenkins, lefthook, Prometheus, Grafana, SBOM, CRA, OPC, SCADA, PLC integration, IPv6 migration, Zero Trust, Sociocracy 3.0, Cynefin
Pierre G.
Last position:
Ansible Automation, Windows Third Level Support at DB InfraGO AG
- PRISMA project
- Ansible automation
- Windows third-level support for Windows NT, Windows 2000, Windows 2013, Windows 2016, Windows 2019
Christian H.
Last position:
Developer at Opereon Consulting GmbH
- Developed a shop website
- Integrated an AI language model
- Developed tools for AI-powered webhooks
- Technical tools: REACT.js; Elevenlabs; MCP; n8n; HTTP
René K.
Last position:
Freelancer at Freelance work
- Business analysis
- Requirements management
- Project management
- Stakeholder management
- Team leadership
Finesa S.
Last position:
AWS Grocery App
- Designed and deployed a cloud-based grocery list app using AWS EC2 for hosting and RDS for persistent data storage, achieving 99.9% uptime across all test environments
- Reduced average response time by 2× through efficient deployment logic and optimized database queries, resulting in a smoother user experience across devices
- Utilized AWS (EC2, S3, RDS, IAM), Azure basics, Terraform, CloudFormation, Docker, Kubernetes basics, Jenkins, GitHub Actions, TCP/IP, DNS, Python, Bash scripting
Fabian Z.
Last position:
Freelance IT Specialist
IT specialist Application Engineering / Software Development since 2012
Discover over 15,000 top freelancers
Statistics of experts using DNS
Aggregated from the professional profiles of matched freelancers.
Experience
21 years (Germany: 22 years)
Position duration
3.6 years (Germany: 3.4 years)
Positions per freelancer
18 (Germany: 15)
Top business areas
Information Technology, Project Management, Operations
Top industries
Information Technology, Healthcare, Telecommunication
Certification focus areas
Information Technology, Project Management, Customer Service
Bachelor's degree or higher
80% (Germany: 77%)
Master's degree or higher
40% (Germany: 44%)
Certifications per freelancer
4
Most common languages
German, English, Italian
Speak two or more languages
100% (Germany: 99%)
Based on our profile pool as of 16 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Cologne 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 Cologne using DNS
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 16 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
DNS 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 (100%)
- Healthcare (71%)
- Telecommunication (57%)
- Energy (43%)
- Manufacturing (43%)
- Professional Services (43%)
- Government and Administration (43%)
- Retail (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Name resolution
DNS, or the Domain Name System, translates human-readable domain names into IP addresses and other service records. It supports websites, APIs, email delivery, service discovery and internal applications. Reliable DNS keeps users and systems connected even as infrastructure changes.
Core services
DNS work covers authoritative name servers, recursive resolvers, zones and resource records. Specialists manage A, AAAA, CNAME, MX, TXT, NS and SRV records, along with delegation, TTL settings and reverse DNS. They may work with BIND, Unbound, PowerDNS, Microsoft DNS or managed services such as Amazon Route 53, Cloudflare DNS and Google Cloud DNS.
Security and resilience
Strong DNS practice protects availability and limits abuse. Professionals implement DNSSEC, separate public and private zones, control transfers, monitor query patterns and plan redundant resolver paths. They also investigate cache poisoning, hijacking, tunneling, misconfiguration and outages across hybrid environments.
Where companies use it
DNS expertise is useful when teams are changing domains, cloud environments or network boundaries.
- Migrate zones and nameservers without disrupting production
- Connect domains to web, mail, API and SaaS services
- Build split-horizon DNS for internal and external users
- Improve resolver performance and failure handling
- Prepare DNSSEC, registrar and certificate workflows
When to bring in a specialist
Companies often seek freelance support during cloud migrations, mergers, domain changes, data-centre moves or security reviews. A specialist can audit records, document dependencies and coordinate registrars, hosting providers, network teams and application owners. In Cologne, remote collaboration is practical for many DNS tasks, while on-site work can help with sensitive network changes and German-language stakeholder coordination.
Signs of strong expertise
A capable professional explains DNS behaviour clearly and tests changes before applying them. They understand propagation, caching, delegation and provider-specific limits rather than treating DNS as a simple record editor. Look for careful rollback plans, observable resolver health, clean zone documentation and experience integrating DNS with identity, networking, Kubernetes, email security and infrastructure automation.
Frequently asked questions
Need clarity? These are the questions we hear most often about DNS.
DNS maps domain names to IP addresses and publishes service information for websites, APIs, mail systems and internal applications. It also supports service discovery, traffic routing and access to cloud resources.
A Domain Name System is centrally managed, distributed and designed to work across networks, unlike a local hosts file. Systems such as Consul or Kubernetes service discovery are often better for short-lived internal workloads, while DNS remains the common interface for users, devices and many applications.
A strong DNS specialist usually understands TCP/IP, routing, firewalls, TLS certificates, email authentication and Linux or Windows server operations. Cloud networking, Infrastructure as Code, Kubernetes and monitoring are also valuable when name resolution spans modern infrastructure.
The right level depends on the risk and scope of the change. A simple zone update may need focused support, while migrations, DNSSEC rollouts, resolver design and outage investigations call for a professional who has handled production dependencies and rollback planning.
DNS is often managed remotely through registrar accounts, provider consoles, version-controlled zone files and secure administrative access. On-site collaboration in Cologne can still be useful for changes tied to local networks, data centres or teams that need direct coordination in German.
Managed DNS can reduce operational work and provide distributed availability, automation and integrated security controls. Running authoritative or recursive services in-house may be justified by compliance needs, private network design, specialised routing or a team that can operate the service continuously.
DNS with DNSSEC authenticates DNS data so resolvers can detect tampering with signed records. TLS protects the application connection and confirms a service certificate; using both addresses different risks rather than replacing one with the other.
Ask how the Domain Name System design handles delegation, caching, failover, access control and recovery. Good work includes a dependency-aware audit, tested changes, clear zone ownership, monitoring and documentation that another specialist can safely maintain.
The average hourly rate of freelancers in Cologne, Germany who have used DNS in their recent projects is 102 €, which corresponds to a daily rate of about 815 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used DNS in their recent projects, 80% hold at least a Bachelor's degree and 40% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used DNS in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 3.6 years.
The most common languages among freelancers in Cologne, Germany who have used DNS in their recent projects are German (100%), English (100%), and Italian (14%).
The most common industries among freelancers in Cologne, Germany who have used DNS in their recent projects are Information Technology (100%), Healthcare (71%), and Telecommunication (57%).
The most common business areas among freelancers in Cologne, Germany who have used DNS in their recent projects are Information Technology (100%), Project Management (100%), and Operations (71%).
Main locations of FRATCH Experts, who have recently used DNS
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 
Frankfurt 
Dusseldorf 
Essen Countries:
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