Bitbucket Pipelines Experts in Germany

• Delivered MVP-focused full-stack architecture for a health-sector client: Vite/React frontend, backend services on Google Cloud Run, and Supabase for database plus IAM/authentication.
• Supported product requirements engineering and prioritized cost-aware workload placement, implementing browser-side/edge computation where feasible before moving logic to backend services.

• Automatic creation of reports based on log data from the Senstar surveillance camera software regarding access times for various camera systems
• Gathering requirements and translating them into a suitable technological solution
• Implementation of Python scripts to read, process, and convert Senstar log data into PDF reports
• Reading configuration files to control the scripts
• Packaging the Python scripts and all dependencies as an executable cmd. Offline installation on Windows Server
• Providing –help parameters to list and explain the script parameters
• Creation of documentation for installing, configuring, and operating the scripts
• Technical environment: Python 3, SQL, Senstar, Windows Server, Python Setuptools, fpdf

• Designed and developed the architecture of an enterprise SCM/CI platform for Kubernetes-native delivery and GitOps workflows.
• Implemented infrastructure automation and Vault & IAM integration for secure, compliant pipelines.
• Coordinated cross-functional teams to improve DevOps, security, and architecture in release processes.
• Increased platform adoption and developer experience by automating onboarding and artifact pipelines.

• Developed backend features for Modern RIS, a web-based Radiology Information System integrated with the existing Classic RIS via WebView.
• Worked on a modular Spring Boot backend covering clinical workflows such as appointments, examinations, patients, orders, reporting, billing, and inventory.
• Contributed to event-driven architecture using domain events to decouple workflows across backend modules.
• Implemented REST/OpenAPI endpoints, service-layer business logic, DTO mapping, validation, and integration points for the React frontend.
• Worked with PostgreSQL-backed domain models, Liquibase database changes, read/write model separation, and legacy RIS database structures.
• Integrated authentication and authorization flows using Keycloak and OAuth2.
• Added and maintained unit/integration tests using JUnit, Rest Assured, Testcontainers, and project-specific test utilities.
• Supported CI/CD and local development workflows using Maven, Docker Compose, Jenkins, and generated OpenAPI clients.

Tech stack: Java 21, Spring Boot 3.5, Maven, PostgreSQL, Liquibase, Keycloak, OAuth2, REST, OpenAPI/Springdoc, MapStruct, Lombok, Docker, Testcontainers, Jenkins.

agentic-engineer.online is my publicly testable live demo and at the same time the platform where I show my work. Originally created as a recruitment trial task, I have since continued to run it as my own demo, learning, and product project — on a Hetzner VPS behind a Cloudflare tunnel, through a multi-stage AI-orchestrated deploy pipeline with snapshot rollback. If a deploy step breaks, the system falls back to the last clean snapshot, the script is adjusted, the test repeated — empirical, test-driven, without hand tuning.

• Technically behind it: Python and FastAPI, an OpenRouter model cascade, SQLite persistence, and Cloudflare edge tuning.
• I am the developer and the strictest customer of my own AI work in one person — what started as a prototype has become a tool I use every day and against which I test my own products.

• Planning and implementing the upgrade of the existing TYPO3 installation to TYPO3 11, including switching to a Composer setup (Composer-based deployment)
• Migrating the underlying MySQL database

• Responsible for setting up and configure AWS Organizations and Control Tower on company's master organizational account
• Administer and maintain various AWS services, including EC2, S3, RDS, Lambda, VPC, IAM, etc.
• Monitor system performance, availability, and capacity planning to ensure scalability and reliability
• Implement and maintain infrastructure as code (IaC) using tools like CloudFormation or Terraform
• Work closely with development and operations teams to automate deployment processes using CI/CD pipelines (e.g., Jenkins, GitLab CI/CD)
• Develop and maintain scripts for automating routine tasks and infrastructure provisioning
• Implement automation for monitoring, logging, and alerting to ensure timely incident response
• Implement and enforce security company guidelines and best practices for AWS environments
• Configure and manage AWS security services such as AWS Identity and Access Management (IAM), AWS WAF, AWS Shield, etc.
• Collaborate with the Security Team to improve and update security policies and posture
• Collaborate with development teams to provide agile deployments and optimize application performance and reliability on AWS
• Provide technical support and guidance to internal teams on AWS-related issues and best practices
• Participate in cross-functional projects to enhance overall infrastructure and operational efficiency

• Developed and maintained a translation management platform integrating with TRADOS and ACROSS CAT tools for seamless document exchange.
• Designed and optimized database schema to support scalable multilingual document workflows.
• Built RESTful APIs to enable communication between servers and microservices.
• Implemented front-end modules using Vue.js for interactive, user-friendly interfaces.
• Applied Camunda process engine for workflow automation, task tracking, and project status management.
• Conducted performance monitoring and optimization for critical application components.
• Practiced Test-Driven Development (TDD) with RSpec and Capybara to ensure code quality and maintainability.
• Enhanced deployment workflows by modifying Bitbucket Pipelines for automated code pushes and deployments.

• Further development of the existing citizen science app with Flutter for Android and iOS to integrate new features.
• Updated the backend, including database migration.
• Used Android, iOS, Flutter, Dart, Riverpod, Drift (migration from moor), flutter_local_notifications, home_widget, flutter_markdown, and flutter_workmanager.
• Backend development with Spring Boot, Kotlin, Kotlin Flow, GraalVM, PostgreSQL, and Docker.
• Used Firebase App Testing, Testflight, as well as Google Play Console and App Store upload.

• Teaching JavaScript, HTML, CSS, React, NodeJS, MongoDB, MariaDB, and Express
• Designing and preparing lessons
• Classroom teaching and one-on-one coaching

• Migrated DataRobot into existing infrastructure
• Created AI infrastructure on AWS
• Migrated Bitbucket pipelines to GitLab