Deliver quality confidently in modern DevOps environments

Software delivery today depends on automation, collaboration, fast feedback, and continuous improvement. In DevOps environments, quality is built into the entire software delivery process, not added at the end. The ISTQB® Certified Tester Quality in DevOps (CT-QDO) certification helps professionals understand how quality assurance, quality engineering, testing, automation, and monitoring support fast, reliable, and scalable software delivery. The certification focuses on applying testing and quality engineering practices within CI/CD pipelines, continuous delivery, and modern DevOps workflows. It supports professionals who want to strengthen their DevOps testing knowledge and contribute effectively to high-performing software delivery teams.

Why Quality in DevOps matters

Modern DevOps environments require:

• Continuous testing and fast feedback
• Automated quality checks within CI/CD pipelines
• Collaboration between development, testing, and operations
• Monitoring and observability across the software lifecycle
• Reliable and scalable release processes

Traditional testing approaches alone are often insufficient for environments with frequent deployments, continuous integration, and continuous delivery. ISTQB® CT-QDO helps professionals understand how quality assurance, quality engineering, and testing evolve within DevOps cultures, and how modern quality engineering practices contribute to fast, reliable, and scalable software delivery.

What you will learn with ISTQB® CT-QDO

With the ISTQB® Certified Tester Quality in DevOps certification, you will learn how to:

• Apply quality assurance practices in DevOps environments
• Contribute to quality engineering across the software delivery lifecycle
• Understand DevOps concepts, culture, and team collaboration
• Work with CI/CD pipelines and continuous testing practices
• Apply automated and manual testing within DevOps teams
• Support release strategies and deployment approaches
• Use quality metrics and feedback loops effectively
• Contribute to faster and more reliable software delivery
• Understand observability, telemetry, and monitoring concepts
• Support infrastructure and automation practices that improve software quality

The certification combines DevOps concepts with modern software testing and quality engineering practices used in real-world software delivery environments.

Key topics covered

DevOps fundamentals

• DevOps principles and culture
• CALMS framework
• DORA metrics
• The Three Ways of DevOps
• DevOps team collaboration
• Site Reliability Engineering (SRE)

Quality assurance and testing in DevOps

• Continuous testing
• Quality engineering
• QA across the value stream
• Testing in CI/CD pipelines
• Pull requests and collaborative quality practices
• Continuous integration and continuous delivery

Test automation and manual testing

• Test automation in DevOps
• Regression testing
• API testing
• Exploratory testing
• Test environment management
• Test data management
• Crowd testing
• Quality hunting

DevOps tools and practices

• Infrastructure as Code (IaC)
• Release strategies
• Feature toggles
• Branching strategies
• Chaos engineering
• Observability and telemetry
• Containerization
• Software Bill of Materials (SBOM)

Who should take the ISTQB® CT-QDO certification?

This certification is ideal for:

• Software testers
• QA engineers
• Test automation engineers
• DevOps engineers
• Agile testers
• Software developers
• SRE professionals
• Quality engineers
• Technical leads
• CI/CD specialists
• Anyone working in DevOps or modern software delivery environments

It is also suitable for professionals transitioning from traditional software testing into DevOps-oriented quality engineering roles.

Benefits of ISTQB® CT-QDO certification

The ISTQB® CT-QDO certification helps professionals:

• Understand modern DevOps quality practices
• Improve collaboration between development, QA, and operations
• Support faster and safer software releases
• Build confidence in CI/CD pipelines
• Improve automated testing strategies
• Strengthen DevOps testing knowledge
• Demonstrate internationally recognized DevOps testing expertise
• Advance careers in software quality engineering and DevOps

ISTQB® CT-QDO exam information

Exam format

• Duration: 60 minutes
• Extra time: 25% for non-native speakers
• Format: 40 Multiple choice questions
• Passing score: 30 points (out of 45 total)

Prerequisite

To take the exam, candidates must hold:

• ISTQB® Certified Tester Foundation Level (CTFL)

Recommended experience

Basic experience in software development, testing, Agile, or DevOps environments is recommended.

Certification validity

The ISTQB® CT-QDO certification does not expire.

Exam delivery options via iSQI

The exam can be taken:

• Online with remote proctoring (FLEX)
• At selected test centers
• As an in-house corporate exam option

Get started

You can prepare for the exam by:

• Attending an accredited training course for ISTQB® CT-QDO v1.0
• Self-study using the official syllabus, sample exams (see “Downloads” section), and the ISTQB® Glossary.

You can also test your knowledge without obligation and free of charge by taking an online mock exam before attempting the certification exam.

What other certifications can you recommend?

• ISTQB® Certified Tester Foundation Level (CTFL)
• ISTQB® Certified Tester Advanced Level Agile Tester v2.0 (CTAL-AT)
• ISTQB® Certified Tester Advanced Level Test Management (CTAL-TM v3.0)
• ISTQB® Certified Tester-Test Automation Engineering v2 (CTAL-TAE v2.0)
• ISTQB® Certified Tester - Testing with Generative AI (CT-GenAI)
• ISTQB® Certified Tester - AI Testing v2.0 (CT-AI)
• ISTQB® Certified Tester – Test Automation Strategy (CT-TAS)

Frequently Asked Questions (FAQ)

What is ISTQB® CT-QDO?

ISTQB® Certified Tester Quality in DevOps (CT-QDO) is an ISTQB® specialist certification focused on quality assurance, testing, automation, and quality engineering practices in DevOps environments. It helps professionals understand how to support software quality within CI/CD pipelines, continuous delivery, and modern DevOps workflows.

What does CT-QDO stand for?

CT-QDO stands for: Certified Tester – Quality in DevOps.

Who should take the ISTQB® CT-QDO certification?

The certification is designed for:

• Software testers
• QA professionals
• DevOps engineers
• Test automation engineers
• Agile testers
• Developers
• SRE professionals
• Quality engineers
• CI/CD specialists

** What is DevOps testing?**

DevOps testing refers to quality assurance and testing practices integrated throughout the software delivery lifecycle.

It includes:

• Continuous testing
• Automated testing
• CI/CD pipeline testing
• Monitoring and observability
• Shift-left testing
• Fast feedback loops
• Collaboration across development, QA, and operations

What is Quality Engineering in DevOps?

Quality Engineering (QE) in DevOps refers to all activities that contribute to building quality into software delivery processes.

It goes beyond traditional testing and includes:

• Prevention-focused quality practices
• Automation
• Monitoring
• Risk reduction
• CI/CD quality checks
• Collaboration across teams

What is continuous testing in DevOps?

Continuous testing means testing activities are integrated into every stage of the software development lifecycle rather than performed only at the end.

Continuous testing helps teams:

• Detect defects earlier
• Improve release confidence
• Enable faster deployments
• Support continuous delivery pipelines

What is the difference between DevOps and Agile testing?

Agile testing focuses on supporting Agile development iterations and team collaboration.

DevOps testing extends Agile principles by integrating:

• Continuous delivery
• Continuous deployment
• Infrastructure automation
• Monitoring
• Observability
• CI/CD pipelines
• Operational feedback

Does ISTQB® CT-QDO cover CI/CD pipelines?

Yes. The certification covers:

• Continuous Integration (CI)
• Continuous Delivery (CD)
• Continuous Deployment
• Release-on-demand concepts
• Testing within CI/CD pipelines
• Automated quality checks

Does ISTQB® CT-QDO include test automation?

Yes. The syllabus includes:

• Test automation strategies
• Regression testing
• API testing
• Automated testing in CI/CD pipelines
• Test environment management
• Test data management

Does the certification include manual testing topics?

Yes. The certification also covers:

• Exploratory testing
• Crowd testing
• Quality hunting
• Collaborative testing approaches

Modern DevOps environments still require manual testing for certain quality risks and usability-related scenarios.

What are DORA metrics in DevOps?

DORA metrics are widely used DevOps performance indicators that measure:

• Deployment frequency
• Lead time for changes
• Change failure rate
• Mean time to recovery

The ISTQB® CT-QDO certification explains how quality assurance and testing contribute to improving these metrics.

What is observability in DevOps?

Observability refers to the ability to understand the internal state and behavior of software systems using:

• Logs
• Metrics
• Traces
• Monitoring data

Observability supports faster issue detection and improved software reliability.

Does ISTQB® CT-QDO include Site Reliability Engineering (SRE)?

Yes. The syllabus introduces Site Reliability Engineering (SRE) concepts and explains how reliability, service levels, monitoring, and automation support DevOps quality goals.

Is ISTQB® CT-QDO internationally recognized?

Yes. ISTQB® certifications are globally recognized software testing certifications used by organizations and professionals worldwide.

Can I take the ISTQB® CT-QDO exam online?

Yes. iSQI offers flexible online exam delivery with remote proctoring, as well as test center and corporate exam options.

How difficult is the ISTQB® CT-QDO exam?

The exam is designed for professionals familiar with software testing fundamentals and interested in DevOps quality practices. Preparation through accredited training and syllabus study is strongly recommended.

How can I prepare for the ISTQB® CT-QDO exam?

You can prepare by:

• Studying the official ISTQB® CT-QDO syllabus
• Taking accredited training courses
• Practicing DevOps testing concepts
• Learning CI/CD and automation fundamentals
• Reviewing DevOps quality engineering practices

Why choose iSQI for ISTQB® CT-QDO certification?

iSQI is a global certification exam provider with more than 20 years of experience delivering internationally recognized software quality certifications.

With iSQI, candidates benefit from:

• Flexible exam options
• Global availability
• Fast registration
• International recognition
• Trusted ISTQB® certification delivery