HTML Experts in Dusseldorf

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

• Analysis and remediation of security vulnerabilities in a risk assessment system for energy trading
• System analysis
• Threat modeling
• Decision-making on vulnerability mitigation strategies
• Implementation of vulnerability detection mechanisms
• Security scans
• DevSecOps practices
• Technical environment: Visual Studio Code, JetBrains Suite, MS Threat Modeling Tool, DevSecOps, Git, AWS, DynamoDB, SQL Server, Endur, Snowflake, Orca
• Languages: C#, JavaScript, TypeScript, Python, PowerShell, Bash, Terraform, SQL

• Independently manage financial accounting
• Prepare monthly, quarterly, and annual financial statements according to HGB and IFRS
• Create monthly reports
• Prepare booking documents and calculate provisions
• Submit VAT advance returns, annual tax returns, and summary reports
• Consolidate all relevant financial data from multiple entities in SAP BYD
• Optimize AP and AR processes
• Manage general ledger and fixed asset accounting
• Serve as direct contact for internal and external finance topics
• Prepare monthly forecasts, intercompany and account reconciliations
• Manage accounts payable, accounts receivable, and bank accounting
• Submit factoring reports to banks
• Provide cash flow report to the CFO
• Train new finance staff
• Prepare and ensure compliance with financial statements
• Liaise with auditors and tax advisors

I continuously expand my expertise in AI and automation, working with ChatGPT, OpenAI, Manus, Gemini, MS CoPilot, API, LangChain, Hugging Face, Manus, TensorFlow and Auto-GPT as well as Python-based ML frameworks and MLOps tools to intelligently transform classic software development, analysis, and testing processes.

• Architecting and developing SaaS platform for graphical definition and execution of pandas data processing pipelines
• Developed POlyglott, an open-source Python CLI tool for translation workflow management featuring PO file parsing, quality linting with glossary enforcement, and DeepL API integration for machine translation
• Developed web application for material compliance management (EU REACH) using Django and modern web technologies
• Built automated infrastructure platform using Proxmox, Terraform, and Ansible — VM provisioning, configuration management, internal DNS, and fleet-wide security hardening across multiple subnets

• Clients: Caravaning Association, Suzuki Motorcycles Germany, Suzuki Press
• Main client responsibility, strategic and operational customer leadership
• UX/UI design, digital campaign implementation, web development and e-commerce (Amazon Brandstores, Otto, etc.)
• Budget management, print and digital media, HTML5 and CSS3 integration, art direction

• Experience in SAP EWM processes and ABAP development
• Configured PPF for output management in EWM and YM, worked with BOPF in TM and YM, configured Fiori Launchpad with roles, spaces, and pages, and developed UI5 applications
• Developed a Fiori Elements app using the List Report, Object Page, Overview Page, and Analytical List Page frameworks with CDS views, AMDP on BAS, created a RAP app, and a report for data transfer to external Oracle systems

• Assessing the current status (planning stage / rollout status) of the so-called inter-polygon routes
• Creating an end-to-end project plan for the individual routes, considering active and passive components and tasks
• Monitoring and controlling the implementation of the plan
• Optimizing the chosen network architecture
• Creating network and splice diagrams

• Conceptualization, UX design, and prototype development of custom SAP Fiori® apps
• Reviewing developed apps for usability and compliance with SAP Fiori® design guidelines
• Producing videos for internal knowledge transfer and internal communication for Schaeffler Technologies AG & Co. KG

• Various programming tasks as specified
• Work carried out from home office, meetings/tasks via email, phone and Microsoft Teams
• Version control via GIT
• Implementation with RDI, FreeSQL SQL
• Extension of automatic test environment creation as specified - adding automatic transfer of existing iSeries users and preparation as well as anonymization of test data
• Creation of trigger and service programs in SQLRPGLE, FreeRPG, ILE RPG and CLLE
• Development and implementation of the CallKredite project including additional extensions for other departments
• Conversion of RPG to Free-RPG and SQL as well as extension of existing modules as specified
• Migration to a new banking release
• Support for specialist segment / OIV

• Consulting & strategic advisory in areas related systems engineering, infrastructure development, techno-economic feasibility, sector coupling and regulatory aspects of green hydrogen in India to evaluate integration and decarbonization opportunities.
• Developed data-driven models of renewable distributed energy resources (wind, solar and hydel) to evaluate the cost of green hydrogen production, distribution and application, aiming for commercial viability and affordability.
• Spearheaded the modelling of the Indian electricity grid and simulation of load balancing to estimate the short- and long-term energy market flexibility analysis to support energy trading and risk management for hydrogen assets.
• Leading AI-enabled software development to support decision-making and accelerate the adoption of a hydrogen economy in India.

• Independent work as a PLC and software specialist focusing on automation and custom machinery
• Programming, modernization, expansion and optimization of production plants with focus on efficiency improvements, data transparency and system integration
• PLC programming and safety with Siemens S7 Classic/TIA-Portal, Beckhoff TwinCAT 2/3 and CoDeSys
• Development of high-level language software and database applications (.NET / C#, C++, Visual Basic .NET, Borland/Embarcadero C++)
• Development of custom software solutions for industrial automation, including embedded systems (Raspberry Pi, Arduino, NodeMCU, ESP8266)
• System integration of external systems such as readers, printers, scales, scanners and cameras, as well as various fieldbus systems (Ethernet, Profinet, Profibus, EtherCAT, CAN bus, RS232, TCP/IP)
• Creation of visualizations and HMI applications with Siemens WinCC flexible, Beckhoff HMI and .NET front-ends
• Design, development and integration of machine vision solutions (Keyence, Cognex, AVS Alfavision, camera systems) in PLC and PC environments
• Design and implementation of process data acquisition systems and traceability solutions (100% traceability) based on Microsoft SQL Server (Compact, Express, Server) including stored procedures and direct PLC-SQL communication
• Creation of software and PLC concepts, standard function blocks and project libraries for PLC and high-level language projects
• Design and programming of conveyor, testing, assembly, packaging and grinding systems in industries such as automotive, chemical, food, electronics and machinery and plant engineering
• Conducting workshops and training on Siemens TIA-Portal, STEP7 Classic, Beckhoff TwinCAT (including TwinSAFE) as well as topics like architectures, safety, database integration and documentation
• Creation of technical documentation, manuals, training materials and class documentation with Microsoft Office and Doxygen
• Project management tasks from requirement analysis through planning, concept development and supplier coordination to commissioning, production support and maintenance

• Design, development, and execution of load and performance tests for the PRISMA project
• Use of Apache Jmeter, Gatling, Apache ActiveMQ, Jms/Tibco Ems, SikuliX, Jython, Amazon AWS, PAN-Client
• Methods: load tests, test automation

• Solution architecture & development for a global commerce platform.
• Technologies: Spryker, PHP, AWS, SAP, VueJS