10/13/2026 updated
100 % available
SDET & Software Engineer in Test | Test Automation Lead | CI/CD & Ethical Hacker
Gdynia, Poland
Only remote
BSc in Information TechnologyArgo CDGitHub ActionsGCPJava (Programming Language)Acceptance Test-Driven DevelopmentBuild AutomationAutomated Testing FrameworkBash ShellCloud ComputingCloud EngineeringCloud TestingLinuxGitHubJUnitPython (Programming Language)
Test Automation & SDET
Extensive experience building test automation frameworks from scratch using Java, Python, and Go across web, backend, cloud, and embedded systems. Proficiency with tools such as Selenium, pytest, JUnit, TestNG, REST Assured, Cucumber/BDD, k6, and Postman, covering UI, API, and performance testing.
Cloud & Kubernetes Infrastructure
Hands-on expertise with AWS, Kubernetes, Docker, Helm, ArgoCD, OpenShift, KubeVirt, and GitOps workflows. Proven track record of introducing and improving infrastructure validation and CI/CD automation across multiple engineering teams in cloud-native environments.
CI/CD Pipeline Engineering
Deep knowledge of CI/CD tooling including GitHub Actions, Jenkins, Codefresh, Gradle, Maven, and Git. Experience designing and maintaining shared pipeline libraries, containerized test execution, and AI-assisted workflow automation to accelerate delivery and failure investigation.
Programming Languages
Strong programming background in Java and Python, with additional experience in Go and Bash scripting. Applied across automation frameworks, tooling development, and security research.
Security Research & Bug Bounty
Active participation in public bug bounty and vulnerability disclosure programs on HackerOne and Bugcrowd. Findings include Broken Access Control, security misconfigurations, subdomain takeovers, SQL injection, and XSS. Custom Python scripts used for reconnaissance, automation, and vulnerability validation.
AI-Assisted Engineering
Practical use of AI tools such as GitHub Copilot and Claude to accelerate CI/CD pipeline failure investigation, triage, and root cause analysis within engineering workflows.
Databases & Platforms
Working knowledge of SQL and NoSQL databases, with experience on Linux and Windows platforms across various project environments.
IoT & Embedded Systems
Development of an IoT payments SDK with a Go core and Java, Python, Node.js, and C# wrappers connected through Apache Thrift. Experience with secure NFC technology, native C integration, secure-element communication, and hardware validation.
Extensive experience building test automation frameworks from scratch using Java, Python, and Go across web, backend, cloud, and embedded systems. Proficiency with tools such as Selenium, pytest, JUnit, TestNG, REST Assured, Cucumber/BDD, k6, and Postman, covering UI, API, and performance testing.
Cloud & Kubernetes Infrastructure
Hands-on expertise with AWS, Kubernetes, Docker, Helm, ArgoCD, OpenShift, KubeVirt, and GitOps workflows. Proven track record of introducing and improving infrastructure validation and CI/CD automation across multiple engineering teams in cloud-native environments.
CI/CD Pipeline Engineering
Deep knowledge of CI/CD tooling including GitHub Actions, Jenkins, Codefresh, Gradle, Maven, and Git. Experience designing and maintaining shared pipeline libraries, containerized test execution, and AI-assisted workflow automation to accelerate delivery and failure investigation.
Programming Languages
Strong programming background in Java and Python, with additional experience in Go and Bash scripting. Applied across automation frameworks, tooling development, and security research.
Security Research & Bug Bounty
Active participation in public bug bounty and vulnerability disclosure programs on HackerOne and Bugcrowd. Findings include Broken Access Control, security misconfigurations, subdomain takeovers, SQL injection, and XSS. Custom Python scripts used for reconnaissance, automation, and vulnerability validation.
AI-Assisted Engineering
Practical use of AI tools such as GitHub Copilot and Claude to accelerate CI/CD pipeline failure investigation, triage, and root cause analysis within engineering workflows.
Databases & Platforms
Working knowledge of SQL and NoSQL databases, with experience on Linux and Windows platforms across various project environments.
IoT & Embedded Systems
Development of an IoT payments SDK with a Go core and Java, Python, Node.js, and C# wrappers connected through Apache Thrift. Experience with secure NFC technology, native C integration, secure-element communication, and hardware validation.
Experience
Professional experience10+ years
Freelancer since2016
Languages
EnglishFluentPolishNative speaker
Project history
Participation in public bug bounty and vulnerability disclosure programs on HackerOne and Bugcrowd, applying an engineering and automation mindset to hands-on web security research. Reported findings include Broken Access Control, security misconfigurations, subdomain takeovers, SQL injection, and XSS. Built custom Python scripts for reconnaissance, automation, testing, data processing, and vulnerability validation. Tech: Python, Bash, Burp Suite, Caido, Nuclei, ffuf, Shodan, Metasploit.
SDET in a central enablement team improving automation, infrastructure validation, and CI/CD across multiple engineering teams. Responsibilities include improving test frameworks and pipeline reliability, designing automation strategies, troubleshooting test infrastructure, and working on AI-assisted workflows to accelerate CI/CD pipeline failure investigation. Tech: Go, Bash, Docker, Kubernetes, AWS, GCP, OpenShift, KubeVirt, Codefresh, GitHub, Claude.
Introduced test automation into cloud and infrastructure projects with little or no existing automated coverage. Built pytest-based frameworks for infrastructure-as-code validation in GitHub Actions. Created an offline Go utility to validate ArgoCD ApplicationSets. Extended shared automation and GitOps/Kubernetes delivery workflows; won an internal cybersecurity CTF competition. Tech: Python, Go, pytest, Kubernetes, Helm, ArgoCD, GitHub Actions, Docker, Bash, Linux.