Shopify Experts in Cologne

As a Freelance Senior Project Manager at Interone (Omnicom Group), I support the digital transformation of a leading British energy provider. My focus is on managing interdisciplinary teams in UX, UI and strategy to implement complex web optimizations and journey mappings. In this international environment, I serve as the central interface to stakeholders in the UK and am responsible for efficient project delivery and expectation management in English. I also manage the Deutsche Telekom account as project manager for the relaunch of a new loyalty shop

• Increased clients' affiliate revenues by at least 20 % p.a. each year and improved ROAS and profitability
• Managed and optimized affiliate and display campaigns for national and international E-Commerce clients
• Expanded and maintained partner networks and acquired new publishers
• Independently conducted pitches, affiliate audits and upselling consulting
• Tracking setups, data analysis, A/B tests, forecasting and reporting; AI training and Custom-GPTs

• Backend WordPress web development.

• Coordination and planning, execution, documentation, and analysis of test cases
• Development of test concepts considering best practices (e.g., test pyramid) with a focus on reliable, automatable test runs
• Implementation and maintenance of test cases according to the test concepts
• Technologies: Citrix Workspace, Shopify, Jira, Xray, MS Teams, MS SharePoint, Confluence, MS Office 365

PLANT-MY-TREE®-per-order

The application enables Shopify merchants to automatically place tree-planting orders for every incoming order. By integrating ecological contributions directly into the purchase process, the manual effort for tracking and billing reforestation initiatives is eliminated. The system increases transparency for end customers through real-time visualizations of the ecological impact directly in the storefront. The architecture is based on a modular monolith with Spring Boot in the backend and an integrated React app inside the Shopify admin area. The solution uses webhooks to capture order data in an event-driven way and integrates the weclapp ERP system for automated monthly invoicing. An app proxy mechanism provides dynamic statistics such as CO2 compensation and planted trees without any performance loss for the merchant shop.

Tasks:

• Design of the modular software architecture based on Spring Modulith to ensure high maintainability
• Development of the event-driven business logic for evaluating Shopify orders via webhooks
• Implementation of automated invoicing by connecting the weclapp REST API
• Building the frontend using React Router and Shopify App Bridge for native integration
• Design of the database model and implementation of the persistence layer with JPA/Hibernate and Prisma
• Integration of internationalization processes for global use in the frontend and email communication
• Automation of deployment processes using Docker and GitLab CI/CD

Project skills: Java 25, Spring Boot, Spring Security, Spring Modulith, Hibernate, JPA, REST API, PostgreSQL, Maven, Liquibase, React, TypeScript, React Router, Vite, Node.js, Prisma, Zod, Docker, Docker Compose, GitLab CI/CD, Shopify CLI, Shopify App Bridge, Polaris, weclapp, i18next, Lombok, Vitest

• Development of monitoring and control systems for public transportation
• Development of a platform for real-time monitoring of passenger information and ticketing systems, as well as an application for remote control and status monitoring of access control systems
• Development of dynamic forms, complex tables, real-time dashboards (SignalR), and reusable frontend components (using Storybook)
• Implementation of REST interfaces in the backend
• Deployment to the Microsoft Azure Cloud
• Technologies used: Angular 20, Angular Material 3, Dev Extreme, Storybook, C#/.NET 10

• Agile project management
• Support for marketing projects
• Building the marketing agency Brainverse UG
• Corporate communication
• Content creation
• Copywriting
• CI/CD development
• Technical consulting for digital transformation

• Designed and deployed a cloud-based grocery list app using AWS EC2 for hosting and RDS for persistent data storage, achieving 99.9% uptime across all test environments
• Reduced average response time by 2× through efficient deployment logic and optimized database queries, resulting in a smoother user experience across devices
• Utilized AWS (EC2, S3, RDS, IAM), Azure basics, Terraform, CloudFormation, Docker, Kubernetes basics, Jenkins, GitHub Actions, TCP/IP, DNS, Python, Bash scripting

• Shopify projects

• Draft marketing strategies
• Develop campaigns
• Create organizational plans