ISTQB Certified Tester Foundation Level (CTFL)
professionals in Dortmund in minutes from over 15,000 CVs with the power of AI.Get testers who understand test design, defect reporting, test levels, and risk-based thinking. The CTFL shows solid practical knowledge for structured software testing, clear communication with developers, and reliable support across agile and traditional projects. Fast, precise matching with vetted freelancers holding this certification.
Meet FRATCH ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE
Arkadius S.
Last position:
AWS Pricing Platform / API & Integration Architecture at Porsche Digital
Development and evolutionary further development of a highly available, cloud-native microservice and integration architecture for dealer and retail processes in the Porsche Car Configurator.
Responsibilities
- Development of Java-/Kotlin-based backend, API, and integration components (Spring Boot)
- Integration of internal and external systems via REST/OpenAPI, GraphQL, Apache Kafka, and AWS SQS (synchronous and asynchronous)
- Implementation of stable, high-performance communication and data flows in a cloud-native platform architecture
- Processing of structured data formats (JSON, Protobuf, GraphQL schemas) based on existing API patterns
- Performance optimization of distributed microservices with reduced response times and higher operational stability
- Technical tests (unit, integration, and API tests) as well as error analysis in production-like environments
- AWS Infrastructure as Code with Terraform and AWS CDK
- CI/CD automation (build, test, and deployment pipelines) with GitHub Actions
- AI-supported feature implementation (GitHub Copilot Agent)
Label: Kotlin, Java 25, Spring Boot 4, Protobuf, TypeScript, AWS, Terraform, CDK, Apache Kafka, AWS SQS, REST/OpenAPI, GraphQL, JSON, PostgreSQL, Docker, GitHub Actions, Maven, Gradle, JUnit, Mockito, Testcontainers
Jens S.
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
Alexander K.
Last position:
Company AI assessment at ATRON
Aladdin A.
Last position:
Technical Consultant at NFON
- Presentations and workshops regarding different VOIP products and technologies
- Design of VOIP and network solutions from core to premium solutions and necessary non-standard solutions
- Processing of tenders
- Development of VOIP and network technical implementation of customer requirements
- Implement and configure different UC products on cloud
Oliver M.
Last position:
Interim Project Manager Automation / PRINCE2 Practitioner at Secure-Partner
- Automotive SPICE (ASPICE)
- Cybersecurity
- automation project management
- operational project execution
- requirements alignment with customers and stakeholders
- planning requirements for modernization
- time and resource planning
Mustafa K.
Last position:
Consultant (MBR Designer) at Bayer AG
Introduction of an MES system in pharmaceutical production.
Support in replacing existing recipes by introducing an MES system.
Focus on converting cleaning and manufacturing AKBs into MBRs.
System environment: Werum PAS-X MES, GMP, SAP, Microsoft Office (Word, Excel), XML
Discover over 15,000 top freelancers
ISTQB Certified Tester Foundation Level (CTFL) statistics
Aggregated from the professional profiles of matched freelancers.
Experience
26 years (Germany: 19 years)
Position duration
1.8 years (Germany: 1.9 years)
Positions per freelancer
22 (Germany: 14)
Top business areas
Product Development, Quality Assurance, Information Technology
Top industries
Information Technology, Manufacturing, Telecommunication
Certification focus areas
Quality Assurance, Information Technology, Project Management
Bachelor's degree or higher
100% (Germany: 91%)
Master's degree or higher
67% (Germany: 51%)
Certifications per freelancer
6
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 97%)
Based on our profile pool as of 10 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers holding this certification in Dortmund, DE 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 for ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE
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 10 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
ISTQB Certified Tester Foundation Level (CTFL) 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 (83%)
- Manufacturing (83%)
- Telecommunication (83%)
- Automotive (50%)
- Education (50%)
- Construction (33%)
- Energy (33%)
- Banking and Finance (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the certification
What CTFL means
The ISTQB Certified Tester Foundation Level, often called CTFL or ISTQB Foundation Level, is the standard entry certification for software testing knowledge. It shows that a freelancer understands how testing supports quality, where defects come from, and how to work with clear test objectives.
What it validates
- Basic test principles and the value of testing
- Test design techniques for deriving useful test cases
- Test analysis, execution, and defect reporting
- Test levels, test types, and the role of test environments
- Risk-based thinking and collaboration in the test process
Typical holders
CTFL is common among manual testers, test analysts, QA specialists, business analysts with test duties, and consultants who support delivery teams. It is also a good signal for freelancers who move between projects and need a shared testing vocabulary from day one.
In Dortmund, companies often look for certified testers who can join local teams on site when needed, but also work smoothly in remote setup with German or English-speaking stakeholders.
Core knowledge
CTFL covers the practical basics behind professional testing. That includes the software development lifecycle, static testing, review ideas, black-box techniques, and how to choose the right level of detail for different situations.
It does not replace deep tool or domain expertise. Instead, it tells you that the freelancer can structure test work, spot weak requirements, and communicate findings in a way that helps delivery teams make decisions.
Why it matters for companies
A freelancer with CTFL is useful when you need dependable testing support without long ramp-up time. This profile fits regression testing, user acceptance support, exploratory sessions, and coordination with developers, product owners, and analysts.
The certification is especially relevant in regulated, customer-facing, or high-change environments where clear defect handling and repeatable test practice matter. It is a practical baseline, not a specialist badge, which makes it useful for many project types.
Search terms and paths
People may search for ISTQB CTFL, ISTQB Foundation Level, or the full Certified Tester Foundation Level name. All of these point to the same core qualification.
If you want a freelancer for Dortmund, that certification can help you narrow the field fast. It is a strong first filter when you need testing discipline, clear terminology, and a reliable hand for day-to-day QA work.
Frequently asked questions
Quick answers to the questions that come up most around ISTQB Certified Tester Foundation Level (CTFL).
The ISTQB Certified Tester Foundation Level (CTFL) certifies that a person understands the fundamentals of software testing. It covers the purpose of testing, basic techniques, defect reporting, and how testing fits into the software lifecycle. For companies, it is a signal that the freelancer can work with a shared testing method, not just ad hoc intuition.
ISTQB CTFL is the foundation level. It focuses on core concepts and common practice, while advanced ISTQB certifications go deeper into specialist areas such as test management or test analysis. If you need someone to start quickly and handle day-to-day testing well, CTFL is the right baseline; if you need a specialist lead, you may look beyond it.
The Certified Tester Foundation Level is a good fit for manual testers, QA consultants, test analysts, and business analysts with testing responsibilities. It is also useful for freelancers who need to join mixed teams and communicate clearly with developers and product owners. In practice, it helps when you want structured testing without a long onboarding phase.
A freelancer with ISTQB Foundation Level should be able to design sensible test cases, review requirements for testability, and report defects in a clear way. You can also expect basic knowledge of test levels, test types, risk-based testing, and the role of static testing. The certificate does not prove tool mastery, but it does show sound testing thinking.
No, ISTQB CTFL is designed as a foundation certification and does not require advanced technical depth. It suits people from technical, business, or mixed backgrounds who want a common language for testing. That said, candidates benefit from practical exposure to software projects and a willingness to learn test methods carefully.
Preparation for the ISTQB Certified Tester Foundation Level usually combines study of the syllabus with practice questions and hands-on thinking about test cases, defects, and review work. Candidates should understand the terminology and be able to apply it to simple project situations. Many prepare best when they connect the material to real testing examples rather than memorizing terms alone.
The CTFL certificate is part of the ISTQB certification track, and renewal or lifecycle rules can depend on the current ISTQB scheme. Companies and freelancers should check the latest ISTQB guidance before assuming a certification stays valid in the same way forever. In hiring, the main point is still whether the person can apply the testing basics well today.
ISTQB Certified Tester Foundation Level is useful in almost any software project that needs disciplined testing. It is especially relevant in regression work, acceptance support, web and app releases, and projects where clear communication about defects matters. In Dortmund, it can be a strong fit for teams that combine local collaboration with remote delivery.
The average hourly rate for freelancers with ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE is 95 €, which corresponds to a daily rate of about 759 € based on an 8-hour working day.
Of the freelancers with ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE, 100% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers with ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE have 26 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers with ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE are German (100%), English (100%), and Spanish (33%).
The most common industries among freelancers with ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE are Information Technology (83%), Manufacturing (83%), and Telecommunication (83%).
The most common business areas among freelancers with ISTQB Certified Tester Foundation Level (CTFL) in Dortmund, DE are Product Development (100%), Quality Assurance (100%), and Information Technology (83%).
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