GitHub Experts in Frankfurt

• Designed and implemented modular AI assistants for sales and business processes within the Microsoft ecosystem (Agentic AI, Copilot extensions)
• Frontend architecture and development with React + TypeScript for embedded chat and assistant surfaces (streaming UI, Hooks, React Query, OpenAPI clients)
• Enterprise-level agent development: reusable skill/agent library, MCP servers, review and compliance gates
• LLM integration into the user experience: Anthropic (Claude), OpenAI, tool use, RAG pipelines, prompt engineering, guardrails
• Architecture and code review consulting, and mentoring within the AI development team
• Integration with Microsoft Graph, Power Platform, and Azure services
• Technologies: React, TypeScript, Anthropic Claude, OpenAI, MCP, RAG, Microsoft Graph, Power Platform, Azure

The Base Services of DB InfraGO form a central data hub between the company’s IT systems. Common Data Services are developed that distribute data from source systems to a variety of downstream systems (via JMS) and make them available (via REST API). The existing service landscape based on TIBCO is being migrated to DB InfraGO’s cloud-native platform.

• Architecture design and implementation for performance-optimized bulk data processing of several million datasets at specific times during the day
• Technical specification and documentation of business requirements
• Integration of various subsystems (including SAP and Salesforce) through the reimplementation of more than 40 microservices based on Spring Boot
• Migration of TIBCO Based microservices from the Enterprise Integration Platform to the Cloud Native Platform using Spring-Boot
• Establishment of a deployment pipeline using GitLab CI/CD, Artifactory, and automated deployment to a Kubernetes environment with the help of ArgoCD
• Definition and implementation of automated unit, integration, and regression tests

Team Size: 9

Technologies/Tools: Java, Spring Boot, ActiveMQ(JMS), JUnit, Tibco Business Works, Gitlab (CI/CD), Kubernetes (Amazon AWS), ArgoCD, postgreSQL, Oracle, Postman, Hoppscotch, openAPI, Sonarqube

• Led discovery phase and POC for Shopware to Shopify Plus migration across EMEA markets, evaluating platform suitability, technical architecture, and multi-brand/multi-country capabilities against business requirements.
• Designed reference architecture for Shopify Plus implementation incorporating headless front-end patterns (Vue.js, Nuxt.js), CMS integration (Magnolia), and Azure middleware (APIM, Functions, Logic Apps, Service Bus) for 11 EMEA markets.
• Defined migration strategy analyzing data mapping, cutover approach, and zero-downtime deployment patterns using Varnish caching, GitOps pipelines, and CI/CD orchestration across six vendor teams.
• Architected multi-tenant Shopify Plus governance model with centralized admin, localized storefront customization, and compliance controls (GDPR, data residency).
• Prototyped AI-driven search optimization (LLM.txt, JSON-LD) for product discoverability in Google AI results, demonstrating post-launch performance opportunities.
• Defined EMEA expansion roadmap for 15+ markets through C-level strategic workshops, identifying phased rollout, market-specific configurations, and resource requirements.
• Tech Stack: React, Nuxt.js, Vue.js, Magnolia CMS, Shopware, Shopify Plus, Azure (APIM, Functions, Logic Apps, Service Bus, Front Door), Varnish, SAP, MS Dynamics, Docker, Kubernetes, GitHub Actions, PostgreSQL, Kafka

Independently built a data platform with cross-system process monitoring.

• Designed the Bronze/Silver/Gold architecture and Python-based pipelines for diverse operational sources.
• Cleaned, harmonized, and validated data; processed and stored it in Parquet format.
• Tracked data history and built business-focused fact and dimension models for traceable reporting.
• Automated data delivery with Python and Power Automate (desktop and cloud); used SharePoint for archiving and data access.
• Developed the Power BI solution from data preparation through to visualizing process statuses, work progress, and deviations.

Technologies: Python, SQL, Parquet, Power BI, Power Query, Power Automate, SharePoint, Copilot

• Analysis of the existing reporting platform, including processes and governance topics, with stakeholders from Sales and Marketing.

• Detailed analysis and evaluation of customer-defined requirements for existing reporting and new dashboards to be established.

• Support for stakeholders in managing sales processes and identifying KPI trends at an early stage.

• Use of Microsoft Power BI as the central analysis and reporting platform.

• Development of a proposal for the required further development of processes and the Power BI platform.

• Documentation of AS-IS business processes and derivation of company-wide KPIs, including coordination with stakeholders.

• Analysis and assessment of the customer's Power BI platform.

• Analysis of processes and data governance.

• Documentation of AS-IS business processes.

• Development of recommendations for further developing processes and the reporting platform.

• Design and implementation of dashboards in Power BI.

• Development of company-wide KPIs and coordination with stakeholders.

• Microsoft Power BI.

• Data analytics.

• KPI definition and reporting.

• Dashboard design and data visualization.

• Stakeholder management and requirements management.

• Development and optimization of the RTL+ frontend application for SmartTV and set-top box platforms with React and Next.js.
• Key role in the technical coordination of developers within the team and in coordinating implementation.
• Central interface to adjacent teams to simplify development processes and improve cross-team alignment.
• Improved frontend performance, stability, and rendering behavior on low-powered devices in a restricted runtime environment.
• Implemented a frontend testing strategy with Jest, React Testing Library, and Playwright.
• Implemented accessibility improvements according to WCAG 2.2 and WAI-ARIA.
• Integrated Didomi Consent Management as a contribution to increasing ad monetization on streaming platforms.
• Used AI-supported engineering workflows with Cursor for structured implementation, refactoring, and faster problem solving.

Technologies used: React, Next.js, TypeScript, JavaScript, GraphQL, Apollo Gateway, Zustand, Tailwind CSS, Styled Components, React Testing Library, Playwright, Jest, HTML5, CSS3, AWS Lambda, EC2, CloudFront, S3, GitLab CI/CD, NX, Cursor

• Error analysis and fixes including performance optimization of the in-house developed platform API
• Change and incident management in day-to-day operations
• Responsible for compliance with security and compliance requirements
• Vendor management for software development and maintenance
• Planning and execution of migration of legacy services to a cloud native platform

Role in the project: project staff, implementation team

Used skills: requirements analysis, IT service and application management, IT operations, error analysis and performance optimization, software maintenance and lifecycle management

Project environment: Cloud Native Platform (Kubernetes, Crossplane, AWS, ArgoCD, Grafana)

• Linux server migrations: Planning and implementation of the migration with SLES Linux Deployment of VMs in VMware 8.0
• Guiding colleagues in configuring Linux VMs in vSphere Auto Deploy
• Application operations: Ensuring the smooth operation of applications on the migrated servers
• Operations manuals: Revising existing operations manuals, adding to them and creating new ones when required
• Reviewing service offerings: Adjusting and optimizing the service offering of external service providers
• Logistics SW, RedHat Linux, Ansible, Confluence / Jira

Project: SCS (Settlement / Clearing Services)

Settlement platform serving multiple trading and clearing venues — counterparty risk safeguarding, settlement volume reduction, central risk management, and post-trade anonymity.

Technologies: Java 17, Spring Boot 3, Microservices, Spring Data JPA, SonarQube, Fortify (SCST), Mockito, Jenkins, OpenShift, Maven, Podman, GitHub, JIRA, Liquibase, Swagger, AMQP, Apache Camel, Terraform, PostgreSQL, Instana, Graylog.

• Identified and remediated CVEs in third-party libraries using SCA tooling, strengthening the security posture of production components.
• Maintained 90% code coverage with SonarQube, improving code quality and reducing production defects.
• Enabled mTLS for database authentication and message broker connections, enforcing encrypted, certificate-validated communication.
• Designed and deployed microservices with asynchronous, REST-based communication between components.
• Optimized a high-volume REST API (~200K requests) by reducing response time from 3s to 2s (33% improvement), boosting throughput and reliability under production load.
• Automated build and continuous integration pipelines using Maven and Jenkins.
• Orchestrated containerized workloads on Podman/OpenShift and governed schema evolution with Liquibase, ensuring reliable, repeatable deployments across all environments.
• Optimized Java code and implemented EHCache-based caching, improving application performance.
• Streamlined release management by governing application images, JAR versions, and dependencies through DBAG Artifactory, ensuring version consistency and audit traceability across environments

• Working within a Swiss-regulated Virtual Asset Service Provider (VASP) offering institutional-grade crypto-fiat financial solutions
• Contributed to on-/off-ramp infrastructure enabling clients to convert between cryptocurrencies and fiat currencies
• Supported the rollout of Web3 payments & third-party payment services to streamline crypto operations for businesses
• Engaged with AML/KYC / regulatory compliance to ensure operations met Swiss regulatory standards
• Assisted in product development or deployment for crypto-backed real estate / luxury goods transactions
• Collaborated with institutional and high-net-worth clients to tailor crypto / financial services offerings
• Bridged traditional banking and Web3 by reducing frictions in fiat-crypto transactions

• Consulting and creation of various web applications based on SharePoint and the React framework for different clients
• Development and testing of accessible apps for SharePoint
• Creation of various test cases for test automation
• Development of various solutions based on Azure
• Creation of various web services based on .NET
• Development of various SharePoint Framework solutions
• Development of various UI solutions based on SharePoint
• Consulting and creation of various Power Apps applications and Power Automate for the steel industry and an IT consulting company
• Support, consulting, and development with offshore teams for SharePoint 2013, 2016, and microservices for a logistics company
• Consulting, concept design, and development of microservices and web applications based on Microsoft technology and the React framework for a logistics company
• Consulting, concept design, and development of various SharePoint Framework solutions on SharePoint 2016 for logistics
• Consulting for the migration from SharePoint 2010 to 2016 for an IT consulting company

• Built an API to ingest, clean, translate, and index EU tenders documents in Neo4j, enabling hybrid search with RAG and Cypher queries via a Streamlit dashboard
• Deployed the API on AWS Lightsail container services with CI/CD automation via GitHub Actions, ensuring stability through pytest unit and integration tests
• Designed and developed a comprehensive online course on data analysis using ChatGPT for professionals and learners, creating instructional videos and interactive Jupyter notebooks
• Utilized OBS and professional audio equipment to ensure high-quality video and audio content
• Led a CRM data normalization and cleaning project visualized via a Sankey diagram to aid customer understanding and pipeline development
• Implemented and validated a genAI-driven web crawling strategy on AWS, ensuring data quality, scalability, and CRM data augmentation

• Worked on an Internet Banking System enabling secure customer transactions (fund transfers, bill payments, balance inquiries) and bank-side operations (account management, approvals).
• Designed and executed manual and automated test cases for functional, regression, and integration testing across web and mobile platforms.
• Automated end-to-end banking workflows using Selenium WebDriver, Java, and TestNG, and performed REST API testing with Postman for backend validation.
• Built and maintained test automation frameworks using TestNG and Maven, and integrated with Jenkins CI/CD for continuous testing and reporting.
• Generated detailed test execution reports with ExtentReports, including logs and screenshots for audits and stakeholders.
• Collaborated in agile teams, contributing to UAT, test planning, and documentation across sprints.

• Extracted relevant infotypes from SAP HCM for migration to SuccessFactors Employee Central and mapping to ECP fields.

• Configured P2P integration including BAPI setup and secured data exchange with HTTPS and OAuth protocols.

• Set up foundational settings in Recruiting (REC) including roles, permissions, and job requisition templates.

• Implemented Career Site Builder to create a branded candidate experience and integrated external job boards.

• Configured candidate application workflows, screening, interviewing, and hiring communication templates.

• Set up pre-screening questions and assessment tools including DHB sanction list checks.

• Implemented automated background check and KYC integration with external vendors in the REC module.

• Localized job requisition templates to reflect regional job titles and regulatory compliance.

• Customized onboarding document templates and localized document archiving protocols (DRTM).

• Adjusted onboarding forms to capture country-specific employee information including Form I-9.

• Enabled Form I-9 remote document verification and integrated eVerify with SuccessFactors.

• Set up automated reminders for employees and HR to complete I-9 sections within deadlines.

• Configured pre-Day 1 access for new hires to complete tasks and mandatory trainings prior to start date.

• Enabled e-signature integration for onboarding documents to support remote verification.

• Technologies: SAP SuccessFactors, BTP, CPI, HCM onPremise, EC, ECP, REC, ONB, Form I-9, eVerify, S4HANA.