Skip to main content

About

Aymen Mastouri
Author
Aymen Mastouri
Lead Solution Architect with 10+ years in enterprise IT. Currently driving AI adoption — RAG pipelines, LLM integration, SDLC automation. Building sovereign AI platforms on self-hosted Kubernetes with full GitOps and observability.

Profile
#

Lead Solution Architect with over 10 years of experience responsible for complex enterprise systems and critical project environments. Stabilizes delivery, establishes governance structures, and transforms unstable systems into scalable, reliable architectures.

Current focus: integrating AI into existing systems and development processes. Designs and implements AI-powered solutions — particularly in the areas of RAG, LLM-based systems, and SDLC automation — with the goal of significantly improving developer productivity and reducing time-to-market.

Combines deep architecture expertise (Cloud-Native, Microservices, SOA) with a strong focus on business impact. Drives solutions end-to-end — from strategic positioning and architectural decision-making to successful implementation in production environments.

Experienced in leading distributed teams (up to 14 members, including nearshore), mentoring architects, and communicating complex architectural decisions to management and stakeholders.


Key Achievements
#

  • Reduced analysis efforts by ~30% through AI-powered solutions
  • Stabilized critical project portfolios and restored predictable delivery
  • Accelerated release cycles by 2x in complex enterprise environments

Experience
#

  1. Lead Solution Architect

    2021 – Present

    Capgemini GmbH · Berlin

    • Responsible for the technical delivery of a critical enterprise portfolio (5 core products)
    • Stabilized previously unstable projects and restored predictable delivery
    • Legacy transformation: migrated monolithic systems into modern microservices and cloud-native architectures
    • Established governance, architecture standards, and technical processes across teams
    • Stakeholder management: communicated and defended architectural decisions to CTO, product management, and client IT
    • Led and developed a team of up to 14 members (including nearshore)
    • Mentored architects and developers; defined guardrails and standards across teams
    AI & Innovation
    • Built and deployed an AI-powered SDLC system for analyzing code and technical documentation (RAG-based with source references)
    • Designed and implemented GenAI solutions (RAG, LLM-based systems, AI-powered workflows) for internal development teams
    • Identified and evaluated AI use cases across SDLC and business processes
    • Improved developer productivity through AI-powered knowledge and context retrieval
  2. Lead Software Engineer / Technical Lead

    2017 – 2021

    Capgemini GmbH · Berlin

    • Led multiple development teams in complex enterprise projects
    • Introduced microservices architectures and containerized deployments
    • Shortened release cycles and improved system maintainability
    • Mentored developers and ensured high code quality
  3. IT Consultant

    2016 – 2017

    Cofinpro AG · Frankfurt

    • Automated regulatory business processes via BPMN workflows
    • Reduced manual work and increased process & system transparency
  4. IT Consultant / Software Engineer

    2015 – 2016

    Tekween Company · Muscat, Oman

    • Developed Java applications in international projects
    • Collaborated in distributed, English-speaking teams
  5. Dipl.-Ing. Computer Science

    2011 – 2015

    ESPRIT · Tunis (EUR-ACE accredited)

  6. Informatics Studies

    2008 – 2011

    Humboldt University · Berlin


Selected Projects
#

ProjectRolePeriod
BundesnotarkammerTechnical Chief Designer08/2024 – Present
BfArMIT Transformation Lead05/2023 – 07/2024
Daimler AGMicroservices & Cloud Migration2018 – 2023
ITZBundTechnical Team Lead (15 members)05/2022 – 12/2022
Deutsche RentenversicherungEULE Architecture08/2021 – 02/2022
Volkswagen AGMicroservice Framework06/2017 – 01/2018

Technologies
#

AI & ML

RAG LLM Integration Prompt Engineering AI Agents LangChain Qdrant Ollama Azure OpenAI Langfuse MLflow

Architecture & Backend

Enterprise Architecture Cloud-Native Microservices SOA API Design Event Driven Architecture Java / Spring Boot Python / FastAPI REST APIs

Cloud & DevOps

Kubernetes (k3s) ArgoCD / GitOps Docker CI/CD Traefik Prometheus / Grafana / Loki Authentik SSO

Frameworks & Methods

C4 Model Arc42 TOGAF iSAQB (Certified 2023)


Languages
#

  • Arabic — Native
  • German — C1
  • French — C1
  • English — Professional working proficiency