Web Developers in Germany

• Planned and developed a CPU monitoring application for monitoring system performance and resource utilization.
• Designed and implemented a Spring Boot backend providing a REST API for processing and exposing monitoring data.
• Developed the React frontend for presenting monitoring information in a clear and user-friendly interface.
• Integrated PostgreSQL for persistent storage and management of application data.
• Containerized the application and its services using Docker Compose.
• Automated infrastructure provisioning and deployment using Terraform on AWS.
• Structured the application as a modern, maintainable system using REST-based communication between frontend and backend.
• Designed and developed a secure, scalable CPU monitoring architecture (cpu-watcher) with a dedicated collector application that streams monitoring data to the backend, reducing direct exposure of system resources.
• Designed a secure cloud infrastructure with the database isolated within a private network and OIDC-based authentication.
• Implemented Infrastructure as Code with Terraform and integrated version-controlled CI/CD pipelines to automate testing, infrastructure changes, and application deployments.
• Designed and implemented the frontend delivery architecture using AWS CloudFront.

Stack: Spring Boot · React · PostgreSQL · REST API · Docker Compose · Terraform · AWS

• Built a customized MediaWiki instance, including installation, MySQL database, SSL, and automatic backups
• Set up user roles (Admin, Mod, Verified, User) and a permissions system
• FlaggedRevisions for editorial review workflows · Commenting and rating extensions

Service & Release Management:

• Initially solely responsible for operational customer service and release management for three months until the team was scaled up
• End-to-end release communication: coordination with development and hosting, client-specific release notes, distribution management, dispatch and follow-up of feedback
• Participation in release acceptance through hands-on testing; close alignment with release planning
• SLA-driven case handling in ServiceNow; ticket processing times tracked as a KPI for improving service speed
• Central interface between federal authorities, specialist departments and development; escalation management, internal dailies and monthly client reviews

Process Development:

• As-is/to-be process analysis and visualisation (draw.io, BPMN), incl. interfaces to adjacent departments
• Service-oriented process handbook with clearly defined roles and responsibilities
• Walkthrough and optimisation of service processes in the ITSM framework together with IT
• Incident workflows between ITSM tools and Jira; Jira project configuration and shared dashboards
• Improvement management: quick clarification with development or structured submission with tracking in Jira

Enablement & Knowledge Management:

• Handbook for GSB 11 customer management incl. ServiceNow handling, work instructions and client templates
• Self-service documentation, step-by-step guides and client-specific service records in Confluence
• Supporting client authorities through the transition from rollout to live operations
• Onboarding a colleague from the GSB 7 team: knowledge transfer between teams, shared best practices and short-term reinforcement of the GSB 11 team
• Establishing post-rollout interviews to evaluate the transfer of responsibilities between departments
• Evaluation of internal AI agents for incident communication and guide creation

As part of the migration from Shopware 5 to 6, it was decided to rethink the entire e-commerce landscape of the regional FUNKE online shops from scratch. The main goals, besides creating a reliable platform with multiple sales channels for each regional brand, were the "rebranding" and the brand development around it.

The rebranding was also transferred into the advertising materials CI, which in the daily newspaper sector, alongside digital performance ads, still has print as a strong focus in the target group segment.

My responsibilities/tasks in this project:

• Creating the UI design system
• UX research
• Prototyping
• Rebranding & creating the new CI manual across all regional shops
• Shopware 6 front-end & back-end development
• Design & creative lead
• Ad design, landing pages

• Developed a new iOS access-control scanning app for security/gate staff to validate RFID wristbands/badges in real time
• Implemented an online/offline hybrid architecture: scans are first checked against the API, with a fallback to local SQLite data in case of network issues, including complete access policy evaluation (zone, direction, scan limits)
• Developed a native iOS RFID bridge: connected the proprietary RFID SDK (QuantumSDK) via a custom Expo Config Plugin + Native Module; integrated LineaPro Bluetooth scanner hardware
• Implemented real-time updates via WebSocket (Pusher protocol), including private-channel authentication and reconnect with exponential backoff for device-/gate-/event-based configuration changes
• Designed a 3-level persistence setup (Keychain/MMKV/SQLite) for secure credentials, high-performance state and offline-capable scan/credential data
• Implemented incremental credential sync (Cursor + updated_after) as well as batch upload of scan logs after reconnect to ensure consistent data in field operations

• New development and further development of frontend interfaces for investors, using HTML5, JavaScript, CSS, React, Material UI, and JSTL

• Developed the “Cost Transparency” plugin for Shopware 6 that extends product details with an interactive graphic illustrating different shares of the total price

• Technologies: Shopware, PHP, Twig, CSS, JavaScript

• Customer training
• Installation and maintenance services for our CAD/CAM software
• Online and on-site training
• Machine setup
• Updates

• Developed Python scripts to analyze CSV datasets.
• Automated report generation and data visualization.
• Improved workflow efficiency through data processing automation.

Self-employed owner of DriveLink Solutions since May 2026. Planning, design, and development of websites, web applications, and CRM solutions; WordPress/WooCommerce, PHP, JavaScript, HTML/CSS, MySQL, REST APIs, automation with n8n and Make, technical SEO, and maintenance.

Selected work samples:

• Adresse Mieten Berlin Web design and frontend implementation of a multi-page website for business addresses and mail services. Structured presentation of services, pricing comparison with monthly/biannual toggle, responsive design, FAQ, and contact options.

• Bauen & Wohnen im Bestand / Bau & Raum Anonymized construction/trades demo with a personal introduction, overview of services, and project inquiry. The work sample shows design and frontend features; it is not a confirmed customer review.

• Fleetaro In-house development of a rental and CRM web application with rental agreements and invoices, as well as an Android app for vehicle handovers, returns, and damage recording. Project presentation with cleaned sample data; it has not yet been sold or used in real-world rental operations.

Further information and work samples are available through the portfolio link in the profile.

• Built more than 15 frontend applications and more than 10 backend services across internal tools, back-office workflows, and external portals for installers and end customers
• Automate build and release workflows with TypeScript and Azure DevOps
• Mentor junior engineers through code reviews and technical guidance
• Integrate AI-assisted and agentic development practices into engineering workflows
• Coordinate user experience decisions with UX designers

Tech Stack: Claude Code, Codex, AWS (S3, Lambda, AppSync, Resolver), Next.js App Router, ReactJS, NuxtJS, Vue.js, Storybook, JavaScript, TypeScript, GraphQL, Azure DevOps

• Self-employed since 2008 in planning, developing, and supporting custom software, web, and system solutions for clients as well as my own projects.

• Complete technical implementation of projects — from requirements analysis and architecture to programming, release, maintenance, and further development.

• Development of database-driven web applications, customer portals, admin interfaces, ordering processes, user and permission management, and custom backend functions.

• Design and development of REST APIs, webhooks, microservices, and interfaces to reliably connect different applications and external services.

• Implementation of numerous smaller services and automations for data processing, monitoring, notifications, recurring tasks, and technical business processes.

• Development of Telegram bots with the Telegram Bot API, including automated notifications, user interactions, status queries, and control of technical workflows.

• Programming native Android applications in Java as well as developing my own games and interactive applications with Unity.

• Development, extension, and modernization of existing PHP, Java, JavaScript, and MySQL applications, including error analysis, performance optimization, and adaptation of grown codebases.

• Setup and support of Linux-based server environments with Apache and Nginx, as well as management of databases, domains, DNS, SSL certificates, email services, access rights, and backups.

• Development of browser-based automations with Selenium for data collection, checking, and processing of recurring workflows, reducing manual steps and making processes more reliable.

• Independent implementation of complete platforms and web projects, including devpraxis.de, hq-smm.com, and socialboost24.com.

• Many years of technical project support with responsibility for troubleshooting, maintenance, further development, documentation, and stable operation of production systems.

• Quick onboarding into existing applications and unfamiliar codebases to analyze technical problems in a structured way and implement practical, long-term maintainable solutions.

• Direct coordination with clients, clear explanation of technical topics, and independent implementation of agreed requirements.

• By combining software development, automation, and system administration, many tasks can be handled completely from a single source, which reduces coordination effort, technical dependencies, and processing time.