Hello, I am Marcel Stypa

Hello, I am Marcel Stypa

I develop modern web applications and build the cloud systems that ensure their reliable operation. As a Software & Cloud Engineer, I design the entire technical ecosystem: From codebase to automated pipelines and secure, scalable infrastructure. My goal: I take away the technical complexity so you can focus entirely on growing your business.

As a freelance Software & Cloud Engineer, I support companies with professional enterprise experience in developing secure web applications and modern cloud infrastructure. Specializing in the full-stack ecosystem and automated CI/CD pipelines, I help modernize legacy systems, optimize workflows, and reliably scale environments.

Work Experience

Leading German Insurance Group

Software & Cloud Engineer

Design, development, and modernization of critical enterprise web applications. Key focus areas included building robust frontend architectures, securing system integrations, and automating CI/CD pipelines for smooth production environments.

Web Application Development & Greenfield Projects

Independent design and scaling of enterprise SPAs using Angular, Spring Boot, and Magnolia CMS—including end-to-end development of the central Employee Onboarding Portal (NEO).

CI/CD Pipeline Automation

Engineering and optimizing automated pipelines for build, test, artifact management, and deployment to significantly accelerate release cycles.

Security & Identity Management

Integration of Keycloak & OAuth services into Spring Boot and Magnolia to secure REST APIs and implement modern authentication workflows.

Observability & Infrastructure

Connecting multi-portal environments to the Elastic Stack (Elasticsearch, Kibana, Beats) for centralized logging, real-time monitoring, and automated alerts.

Enterprise IT Service Provider

System Engineer Cloud & Collaboration (incl. Cooperative Study)

Grew from a dual-study student into a System Engineer specializing in cloud migration, identity management, and enterprise infrastructure. Built deep expertise in automating complex administrative tasks and ensuring high system availability.

Cloud Migrations & Data Analysis

Planning and execution of automated FileShare-to-SharePoint migrations. Developed Python scripts to analyze folder hierarchies, path lengths, and execute API-based transfers with hash integrity verification.

Identity & Access Management (IAM)

Administration of user roles, permission models, and Active Directory environments in compliance with strict enterprise security standards.

Infrastructure Administration & 2nd Level Support

Maintenance of Citrix and Microsoft 365 environments alongside qualified troubleshooting for business-critical enterprise systems.

Certifications

Microsoft Azure Solutions Architect Expert
Microsoft Azure Administrator Associate

Education & Degrees

Mainz University of Applied Sciences – Bachelor of Science (B.Sc.) in Information Systems

Enterprise IT Service Provider – Certified IT Specialist for System Integration (Fachinformatiker)

Expertise

Angular

Spring Boot / Java

Python

CI/CD Pipelines

Docker & Kubernetes

Keycloak / OAuth2

Elasticsearch & Kibana

Magnolia CMS

Microsoft SharePoint & Azure