Multi-Tenancy Experts in Munich

Matthias Voit

Senior Frontend Developer & Architect

Last position:

Senior Frontend Developer / Technical Web Architect – Consent Management

Project for a leading German email and cloud service provider: As Senior Frontend Developer and Technical Web Architect, I developed an international, multi-tenant white-label consent management layer for several brands.

Main tasks:

Architecture and implementation with Vue 3, TypeScript, and Vite
Development of automated tests with Vitest and Playwright
Creation of brand-specific CMP configurations, CSS themes, i18n structures, and vendor settings
Implementation of the playout and initialization logic as well as backend integration
technical decision support, project and code documentation

Impact: Replacement of external CMP solutions with a reusable and long-term maintainable in-house base for several international brands and rollouts.

Technologies: Vue 3, TypeScript, Vite, Vitest, Playwright, IAB TCF, Google Additional Consent, i18n, Git, CI/CD.

Omar Ashour

Engineering Leader · AI & Full-Stack Systems · Ex-Founder & CEO

Last position:

Senior Fullstack AI Engineer (Team Lead – B2C Platform) at mama health

Partner directly with C-level leadership (CEO, CAIO, CTO) on architecture, OKR strategy, and cross-team roadmap prioritization, translating strategic goals into structured engineering requirements.
Surfaced and mapped technical debt across the entire organization with C-level leadership and co-defined a prioritized remediation strategy, balancing debt paydown against feature delivery.
Led code reviews and technical standards across the team, fostering a mentor-first environment with two-way feedback dialogue — pairing on complex pipeline work and unblocking junior engineers on async architecture patterns.
Re-architected the AI companion's core processing pipeline from synchronous to asynchronous with a queue-based worker architecture, enabling horizontal scalability and cutting upload processing time ~4x (from ~22s to 5–10s) while improving response accuracy.
Designed an AI-driven document intelligence workflow with automatic multi-document classification, per-document summarization, and relevance guardrails for the patient care journey.
Built a unified patient memory system (short- and long-term context) bridging the document vault and chatbot into a single bidirectional, context-aware platform.

Paul Webster

Architecture Consultant (Freelance)

Last position:

Agentic AI Solution Architect at Solvd GmbH

As the Solution Architect for Agentic AI in auto claims processing, I led global customer delivery implementations, encompassing solution design and detailing, multi-tenancy, process flows, integration with third-party solutions, and localization requirements.

Architectural Analysis: Conducted in-depth analysis of business requirements, managing requirements and creating detailed specifications.
Service Definition: Developed comprehensive technical definitions for services and integration contracts.
AI Process Management: Automated AI process management, focusing on analysis, optimization, and continuous improvement.
Requirements Gathering: Facilitated requirement-gathering sessions and analyzed business processes to identify optimization opportunities.
Agile Collaboration: Employed agile methodologies, working closely with stakeholders to ensure alignment and responsiveness.
Technical Support: Assisted senior management with technical analyses and deliverability assessments.

Siegfried-Thor Bolz

AI Solutions Architect & Developer

Grasbrunn

Last position:

AI Solutions Architect & Developer at E-Commerce

Integrated LangChain middleware between AEM and SAP PIM system
Developed a FastAPI interface for system communication
Implemented vector embeddings for semantic product search
Evaluated LLM models (Vertex AI/Gemini, LM Studio, Hugging Face, OpenAI) for product analysis
Developed an AEM component to display product recommendations and integrated the recommendation API into the AEM authoring process
Designed and implemented Pinecone vector database for product embeddings
Optimized response times and caching strategies
Evaluated Vertex AI Studio for LLM testing and prompt workflows
Implemented secure API routing and access control for AI components via FastAPI and gateway validation

Markus Oberhammer

Lead E-Solution Architect & Senior Requirements Engineer

Last position:

Lead E-Solution Architect & Senior Requirements Engineer at Zasterbot-Oracle

Clarification of project goals, scope, and functional target vision for building the AI-based knowledge base.
Deriving the initial architecture and implementation strategy for the Zasterbot chatbot, including defining the MVP and expansion phases.
Developing a functional target vision for building a structured knowledge base and integrating a future chatbot.
Deriving and prioritizing use cases for information retrieval and provision by the chatbot.
Modeling data structures and flows for effectively organizing the knowledge base on the Base44 platform.
Designing and implementing data models for storing and linking relevant information.
Developing processes for extracting, analyzing, and preparing raw data for the knowledge base.
Ensuring data consistency and quality as the foundation for the future chatbot.
Planning the integration of large language models (LLMs) and retrieval-augmented generation (RAG) for precise and context-aware responses.
Implementing features for analyzing and visualizing data from the knowledge base.
Using the Base44 platform with JSON-schema-based entities and a flexible permission model.
Implementing Deno functions for backend logic, event processing, and external API integration.
Integrating OpenAI services for initial data analysis.

Pavlo Voznenko

(Group) CTO

Last position:

(Group) CTO at Seven.One Entertainment Group

Successfully restructured ProSiebenSat.1 Digital and merged with Seven.One Entertainment Group to enable Digital Consumer Products strategy for 6k+ employees across DACH.
Acquired JOYN streaming platform (4M unique users) from Warner Bros. Discovery and managed integration of 160+ people while maintaining efficiency.
Pivoted to a platform organisation with a capped annual budget of EUR -100M, decreasing time-to-market and enabling product testing within 3 months, avoiding significant upfront investment.
Focus on reusability and modular components generated new mid-digit multimillion revenue through Live Interactive shows (EUR 2.5M project budget, 7 months of development).
Built from scratch and went live with a new publishing business for Digital News and Sports within 6 months, enabling 250+ editors with multi-tenancy support.
New tech stack product achieved +66% YoY unique monthly active users and +60% YoY time spent per day (>2h).

Mani Yazdi

Full-Stack Developer

Last position:

Full-Stack Developer at Continentale Krankenversicherung a. G.

Set up the new digitization strategy.
Using Camunda as a process engine, a new way of handling batch and dialog tasks is created.
In close cooperation with the business department, the individual processes are created and put into production.
Forms for controlling manual interventions, e.g. when adjusting applications, are implemented.
Gradual migration of old code from IBM WebSphere to JBoss.
Skills: Arquillian, Camunda, Initiative, Empathy, Hibernate, Jackson, Java/JEE, JBoss, Jersey, JSON, JUnit, Openness to criticism, Willingness to learn, REST, Teamwork, WebServices.

Stephan Sahm

Senior Data/ML Consultant & Technical Lead

Last position:

Senior Data/ML Consultant & Technical Lead at Jolin.io

Role: Software Engineer & Applied Mathematician (Mathematical optimization for scheduling; duration: 1 months; team setting: Team of 2, remote; technologies: JuMP, Julia, Pluto, Svelte, JavaScript, TypeScript, JetBrains Space, Terraform, Nomad)
Role: Software & Cloud & Web Engineer (Building scalable data science compute cluster from scratch; duration: 11 months; team setting: Team of 1, on-site; technologies: Terraform, Kubernetes, k8s ingress, k8s services, k8s RBAC, k8s networking, k3s, etcd, S3, DNS, certificates, Julia, Pluto, JavaScript, Tailwind, Astro, npm, Parcel, Preact, MUI, JWT, AWS SQS, AWS RDS, Python, GitLab, GitHub)
Role: AI & Web Engineer (Custom ChatGPT service; duration: 1 months; team setting: Team of 2, remote; technologies: Python, Poetry, LangChain, Tailwind, ChatGPT API, Flask, FastAPI)
Role: Architect & Data Engineer (Central datalake setup and ingestion; duration: 9 months; team setting: Team of 5, remote; technologies: Infrastructure-as-code, AWS CDK, Python, Boto3, PySpark, AWS Glue, IAM, S3, ECS, Fargate, Lambda, Apache Hudi, DeltaLake, Databricks, GitHub, Jira, Miro)
Role: Software Engineer (PoC Julia migration of scikit-decide; duration: 1 months; team setting: Team of 2, remote; technologies: Python, Julia, GitHub)

Alexandru Gunescu

Head of Cloud Infrastructure

Last position:

Head of Cloud Infrastructure at BP

Migrated the Electric Vehicle Charging SaaS App of the EV Division from on-premises and Azure to AWS Cloud, resulting in a hybrid multi-cloud multi-tenant solution
Developed a streaming data pipeline using AWS MSK for Apache Kafka and implemented an event-driven architecture to ingest and process near real-time data from OCPI-protocol IoT devices
Implemented multi-tenant strategies including database schema isolation, bridge model for resource sharing, and tenant-based RBAC controls
Provisioned Kubernetes clusters on AWS EKS with namespaces and RBAC for tenant isolation
Led migration from on-premises and Azure to AWS using AWS DataSync, Snowball, and Database Migration Service
Orchestrated collaboration across 5+ systems, vendors, service providers, and on-site teams
Supported development and maintenance of IT strategy aligned with business requirements
Managed €40 million infrastructure budget with AWS & Azure cost optimization, achieving 15% savings
Led 50+ developers to implement advanced database procedures, increasing productivity by 20%
Spearheaded multi-cloud, multi-tenant infrastructure migration for 30% faster processing times
Negotiated vendor pricing to reduce payroll/benefits administration costs by 20%
Developed a two-year infrastructure technology roadmap yielding 25% cost savings
Tech stack: Kubernetes on AWS EKS, Docker, Kafka/AWS MSK, Terraform, AWS CDK, TypeScript, React, NextJS, Node.js, NestJS, Python, Aurora Serverless, RDS (MySQL, SQL Server), GitHub Actions, Azure DevOps, ArgoCD, AWS Lambda, API Gateway, AWS Security Hub, AWS Database Migration Service, AWS DataSync, AWS Organizations, AWS Control Tower, Odoo, Microsoft Navision, MS Dynamics

Stephan Krausenegger

Migration Coordination

Last position:

Migration Coordination at ITZBund

Analysis and assessment of government business processes with regard to migration capability
Definition and preparation of the technical framework conditions in the new master data center
Development and optimization of migration procedures and processes
Transformation of existing solutions to new technical standards (technology refresh)
Coordination of architecture and technical cross-cutting topics

Bela Bocsak

Full Stack Lead Developer, Backend Architect

Last position:

Full Stack Lead Developer, Backend Architect at Telefonica (O2)

The software supports the complete planning and approval of antennas for mobile telephony.
The system was implemented using an event-driven microservice architecture for cloud-native deployment with Quarkus on the backend, Kafka for communication, and Angular for the frontend. Services run on Kubernetes in Google Cloud. A special challenge was synchronizing with the legacy system still used by some users.

Mahmoud Reda

Oracle Database and Cloud Administrator

Unterhaching

Last position:

Database Administrator at Deutsche Pfandbriefbank

Provision and operation of Oracle databases within the agreed service levels.
Storage administration using Oracle ASM feature.
Oracle Grid Infrastructure and database patching.
Ensure SLAs and operational KPIs are met, coordinating internal and external support during major incidents.
Create and exercise reliable backup strategies and periodic restorations.
Plan and execute migrations from non-multitenant to multitenant architectures and consolidate databases into multiple containers.
Configure Oracle database authentication with Kerberos.
Deploy and administer Azure Database for PostgreSQL (Flexible Server) including configuration, scaling, and high availability setup.
Migrate on-premises PostgreSQL databases to Azure using pg_dump/pg_restore, pg_dumpall, and Azure Database Migration Service.
Configure backup and point-in-time restore policies for compliance and recovery objectives.
Implement monitoring and alerting with Azure Monitor, Log Analytics, and custom dashboards.
Perform query performance tuning by analyzing execution plans, optimizing indexes, and adjusting parameters (work_mem, shared_buffers, autovacuum).
Collaborate with developers to implement schema design improvements, partitioning, and connection pooling (PgBouncer) for scalability.

Markus Binder

Technical Co-Founder