
Yusuf Aşık
I'm SDET
About Me
I am a Software Development Engineer in Test (SDET) with 8+ years IT and 3+ years hands-on experience in automated testing and quality assurance. Skilled in writing test automation scripts, developing test frameworks, and using tools like Selenium WebDriver, JDBC, JMeter and Postman. I ensure high-quality software releases with strong background of SDLC and STLC stages. I excel mostly in Agile-Scrum environments and collaborate with development and client teams to identify issues early in the software development lifecycle. Passionated and open about continuous learning together with my company, I also stay tuned on the latest technologies like Playwright to enhance automation with Gen AI. My strengths include problem-solving, analytical thinking, and a commitment to delivering reliable, robust, and scalable software solutions.

Test Automation Engineer & SDET.
- Birthday: 1 Jan 1999
- Email: contact@yusufasik.com
- Location: Istanbul, TR
- Age: 26
- Freelance: Available
Couple of quotes that i like about my job
"Code is like humor. When you have to explain it, it’s bad." — Cory House
"The best error message is the one that never shows up." — Thomas Fuchs
"Program testing can be a very effective way to show the presence of bugs, but is hopelessly inadequate for showing their absence." — Edsger W. Dijkstra
"First, solve the problem. Then, write the code." — John Johnson
"Software testing is a process, not an event." — Dorothy Graham
Open Source Projects
And More Tools
~Days of Experience
Languages
Continously improving and working to add more languages.
Java
ExpertJavaScript
BeginnerTypeScript
BeginnerPython
Coming soon..Resume
My IT Journey
Summary
Yusuf Aşık
As an SDET, my journey began with blackbox testing and finding bugs on especially video games and websites without knowing SDLC stages.
Education & Internship
Technical High School
2014 - 2017
Şişli Anadolu Teknik, IST
Mostly experience with basic tools such as C++, Adobe, Excel, Photoshop
Associate's degree & Computer Programming
2017 - 2019
Bilgi University, IST
C#, PHP, SQL and Android Studio lessons
Apprentice
2015 - 2015
Canpolat Bilişim Sistemleri, IST
- Learned to set up, manage, and optimize wireless network infrastructures.
- Installed and configured routers and access points to ensure seamless connectivity and efficient network performance.
- Provided technical support to promptly and effectively resolve network-related issues.
Intern
2017 - 2017
Atasay - HUQQA, Q Food & Beverage, IST
- Advanced Excel Expertise: Developed and automated complex spreadsheets for data analysis, forecasting, and visualization. Utilized advanced Excel functions, pivot tables, and macros to enhance reporting efficiency.
- IT-Driven Financial Reporting: Designed and implemented IT solutions to streamline financial reporting processes. Integrated data from multiple systems into centralized dashboards for real-time insights and decision-making.
- Accounting System Support: Provided technical support for accounting software, ensuring seamless integration with IT infrastructure. Conducted troubleshooting and resolved system issues to maintain accurate financial records.
- Data-Driven Insights: Leveraged IT tools to collect, organize, and analyze financial data, providing actionable insights to optimize budgeting, forecasting, and resource allocation.
- Collaborative Solutions: Worked with cross-functional teams to align IT systems with accounting and reporting requirements, improving overall efficiency and compliance.
Intern
2019 - 2019
Istanbul Courthouse, IST
- Data Center Operations: Managed and monitored servers, storage devices, and infrastructure within a data center environment. Ensured uptime and efficiency while implementing best practices for security and maintenance.
- Network Administration: Set up, configured, and maintained local area networks (LANs) and wireless networks. Provided troubleshooting and optimization to ensure reliable connectivity.
- Computer Hardware Management: Diagnosed and repaired hardware issues, performed upgrades, and ensured optimal performance of desktops, laptops, and peripheral devices.
- Excel Proficiency: Gained expertise in creating and managing complex spreadsheets, including data analysis, reporting, and automation using advanced Excel functions and macros.
Professional Experience
Hosting Expert
2022 - Present
Teleperformance, Flatofis, IST
- Actively Web-based Blackbox Testing experience, especially with .har files and Network Console.
- Using CI/CD and ITSM tools like ServiceNow to keep the track of the changes/issues/bugs.
- Daily go-to Agile tools like Jira, MS Teams and Slack to stay in touch and sustain the team collaboration.
- Advanced Experience on VPS/Shared Hosting setup with using terminal and panels.
- Watching Splunk to usually track the mail route, where it fails, which port causing issue and most importantly what is the status.
- Understanding and solving issues with the DNS, and common protocols like HTTP, SSH, FTP and SMTP.
- Solving the common Encryption and SSL problems with generating CSR for Rekey, applying Force HTTPS with php.ini and .htaccess with port filtering, and converting CRT to PFX format.
- Setup WAF and set rules like URL and input data validation, parameter injection, rate limiting, SQL and Command filters to prevent any attack/unwanted situation.
- Limiting login attempts, implementing recaptcha, GeoIP filtering and IP/User Blacklist to prevent Brute Force Attacks.
- Streamlined live chat support processes by documenting common technical issues, enabling efficient problem resolution and reducing customer response time by 66%.
- Provided technical assistance to customers, enhancing skills in analyzing system logs and identifying root causes of application and server issues.
- Proposed and implemented automation scripts to address frequently encountered customer support scenarios, improving support workflow efficiency.
Tools
These are the tools that i enhance test cycle with. Most of them are doing same job with differences like framework, syntax and UI. I also added my expert and daily go-to tools in main class.
- Main
- UI/E2E Test
- API Test
- Mobile Test
- Reporting
- Security/Debug
- DevOps
- Containers
- CI/CD
- SQL
- IDE
- Performance Testing
- Mail Testing
- Accessibility Testing






JMeter
Apache JMeter is an open source testing tool used for performance and load testing of software applications. It was developed by the Apache Software Foundation and is used specifically for testing web applications, APIs, web services (both SOAP and RESTful), databases, FTP servers, and many other protocols.






SoapUI
SoapUI is a powerful open source tool used to test APIs and web services. Although it was developed specifically for testing SOAP (Simple Object Access Protocol) based web services, it can also work with other protocols such as REST, GraphQL, JMS, AMF, MQ. SoapUI supports creating both manual and automatic test cases and offers extensive features to streamline the API testing process.


JMeter
Apache JMeter is an open source testing tool used for performance and load testing of software applications. It was developed by the Apache Software Foundation and is used specifically for testing web applications, APIs, web services (both SOAP and RESTful), databases, FTP servers, and many other protocols.




Dastardly
Dastardly is a Free CI/CD pipeline security tool developed by PortSwigger. It is designed to identify and fix security vulnerabilities in web applications during the development process. Dastardly integrates seamlessly with CI/CD pipelines to provide continuous security testing and ensure secure code deployment.



















Certificates

Build trustworthy AI solutions on Microsoft Azure
Experience about creating secure and reliable generative AI solutions with Microsoft Azure. Diving into responsible AI best practices, learning to craft custom content filters using Azure AI Content Safety, understanding the critical importance of thorough model evaluation, and discovering strategies to mitigate risks to ensure the highest standards of safety and security.

Postman API Testing Path
Postman API Testing Learning Path completion provided me with a comprehensive understanding of API testing methodologies. I learned how to create, manage, and execute API tests using Postman, including setting up a baseline test suite to ensure consistent and reliable API performance. This certification enhanced my skills in validating API responses, automating test cases, and integrating API tests into CI/CD pipelines with Postman CLI.

Apache JMeter™ Pro
I deepened my expertise in performance testing by learning Intel-thread communication plugin to work with Ajax requests with Parallel Controller from BlazeMeter. Also learned JSR223 with both Groovy and BeanShell best use cases and functions, as well as mastering the step-by-step debugging plugin from BlazeMeter to optimize complex test scenarios and enhance scripting efficiency.

Docker Foundations Professional Certificate
This learning path helped me to understand importancy of Docker in Software Development. Learned how to use Docker Hub effectively like we did in GitHub, path also covered Docker Compose to work with different environments like my field QA on live apps with using both Docker Desktop App and CLI.

Software Architecture: Domain-Driven Design
Domain-driven design (DDD) is an effective architectural approach for agile environments and microservices. In this course, I learned from Allen Holub how to use DDD to develop domain-focused systems. The course covers DDD basics, microservices, bounded contexts, entities, and compares reactive and declarative systems. It also includes how to conduct an event storming session.

Learn JMeter from Stratch on Live Apps - Performance Testing
In-depth training on JMeter for performance and load testing, covering test plan creation, thread groups, samplers, and listeners. Learned to simulate real-world scenarios, analyze performance metrics, and integrate JMeter with CI/CD pipelines for continuous performance testing(Not covered i did myself). Gained practical experience through hands-on projects and expert guidance.

Data Protection And Security Awareness
GoDaddy is leader in the Domain-Hosting and known for collaboration with Sucuri on Website Security and M365 Mail Security Products, New security certification that i added to my envanter with 100% score pass.

Global Anti-Harassment And Discrimination
GoDaddy is leader in the Domain-Hosting and known for collaboration with Sucuri on Website Security and M365 Mail Security Products, New security certification that i added to my envanter with 100% score pass.
Projects
Here are the couple of open-source projects that i wrote for both web-mobile(soon) apps using different tools.
Click to see all.
Contact
Get in touch with one touch.