Making complex systems work for people.

10+ years in IT, from ERP and enterprise SaaS to application security. Today, I troubleshoot AppSec integrations across build tools, CI/CD pipelines and customer environments.

Connect on LinkedIn ↗ Read my Medium ↗

Explore my work ↓

Based in Wrocław, Poland · Working across international teams

What I bring

Technical depth. Customer context. Knowledge that stays with the team.

I combine second-line technical support with hands-on integration work, investigating AppSec issues across customer environments. My experience includes resolving support cases, building documentation and establishing support processes for SaaS products.

10+Years in ITSupported ERP, CRM and chatbot platforms. Now working in cybersecurity.

CI/CDHands-on AppSec integrationsEnterprise Git hosting, build pipelines and containerized environments.

150+Knowledge articles createdConfluence documentation created in a previous support role.

3Languages used in supportEnglish, Spanish and Polish.

Where I add value

Practical experience relevant to customer-facing engineering, Professional Services and DevOps.

01 / AppSec & delivery workflows

Security integrations inside CI/CD

I support SCA and SAST workflows, investigate build and scan configuration issues, and work with R&D, DevOps and security teams to analyze logs and scan behavior. This spans Java, Python, JavaScript and C# environments.

JenkinsAzure DevOpsTeamCityMaven / GradleNPM / NuGet / Pip

02 / Containers & enterprise integrations

Hands-on environments, reproducible issues

I configure AppSec integrations with GitHub Enterprise and Jira Data Center using containerized environments. I also use Docker to isolate CLI scans and reproduce issues, Bash and PowerShell for diagnostics, and Postman to debug REST API calls.

DockerGitHub EnterpriseJira Data CenterBash / PowerShellREST APIs

03 / SaaS & diagnostics

Investigating issues across the stack

My SaaS troubleshooting experience includes AWS, Coralogix, Grafana and SendGrid, alongside MongoDB, SQL and BigQuery. I also investigate logs in Splunk and reproduce problems across Windows, Linux and macOS.

AWSGrafana / CoralogixSplunkSQL / MongoDB / BigQuery

04 / Support operations

Better workflows and shared knowledge

I have practical Jira administration experience: automations, custom fields and memberships. My work has also included maintaining Jira dashboards, creating monthly support reports and administering OpsGenie teams, rules and alerts.

Jira administrationOpsGenieConfluenceSalesforce

Enterprise customers & international teams

I have supported enterprise customers across SaaS, CRM and cloud-based supply chain platforms, collaborating with colleagues across North America, EMEA and APAC.

A foundation in customer-facing IT

My career started in April 2016, supporting ERP customers with solutions, workarounds and action plans in English, Spanish and Polish. AWS Certified Cloud Practitioner, earned in January 2024, complements my practical cloud work.

Full background on LinkedIn ↗

Selected writing

Hands-on DevOps projects, with the setup, troubleshooting and lessons documented.

Jenkins · Docker · Kubernetes

Continuous Deployment with Jenkins and Kubernetes

A local pipeline that builds a Docker image and deploys a Flask app to Minikube. Includes the permissions and cluster-access problems I encountered along the way.

Read the walkthrough ↗

AWS Lambda · S3 · Python

Automatic Image Resizing with AWS Lambda and S3

An event-driven image workflow, from S3 triggers to Python dependency packaging. A practical account of testing, fixing the deployment and cleaning up resources.

Read the walkthrough ↗

Ubuntu · Shell · Workflow

7 Tips for Faster File Navigation in Ubuntu

Directory shortcuts, bookmarks and command history explained through examples. An approachable guide to making everyday terminal work more efficient.

Read the guide ↗

Let's connect

Have a technical challenge in mind?

For a conversation about my experience or a role, reach out on LinkedIn. For technical walkthroughs and code, explore Medium and GitHub.

LinkedInCareer background & contact / wojtek-szczerbinski

MediumTechnical writing / @wojtekszczerbinski

GitHubCode & repositories / WojtekSzczerbinski