Amazon Web Services Experts in Stuttgart

Sercan T.

Certified Professional for Software Architecture Foundation Level

Esslingen am Neckar

Last position:

Co-Founder & Lead Software Architect at Pflege-Pfad

Focus: System architecture, cloud-native platforms, microservices, API design
Product: Pflege-Pfad is a digital placement platform that directly connects relatives of people in need of care with verified care services and caregivers – without an agency and without ongoing fees.
Business analysis & process design:
Analysis of the German care market and identification of the key pain points of both target groups.
Modeling of core business processes: registration, verification, care request, application, placement, and rating.
Definition of the business model as a freemium/premium model with optional contact unlocking.
Creation of user stories and requirements documentation for relatives, care services, and administrators.
Design of trust and quality assurance mechanisms with document upload, admin review process, and rating system.
Coordination with stakeholders and validation of product decisions with potential users.
Technical implementation:
Design and implementation of the entire platform architecture as the sole developer.
Design and implementation of a REST API with Spring Boot and Kotlin, including JWT-based authentication.
Development of the frontend as a single-page application with Angular 17.
Implementation of the AWS infrastructure with EC2, RDS PostgreSQL, S3, CloudFront, and IAM.
Document upload with AWS S3 using presigned URLs to verify care services.
Email notifications via Resend API.
AI-supported care service search via OpenAI API.
Implementation of complete user flows such as registration, login, password reset, and the placement process.
Development of an admin panel for user and care service management as well as analytics.
CI/CD with GitHub Actions and containerized deployments with Docker.
End-to-end tests with Playwright.

Technologies: Kotlin, Spring Boot 3, Spring Security, JWT, JPA/Hibernate, PostgreSQL, Angular 17, TypeScript, RxJS, AWS (EC2, ECS, S3, CloudFront CDN, RDS PostgreSQL, IAM), nginx, GitHub Actions, Playwright, Maven, Git, OpenAI API, Resend API, Docker, Scrum, i18n (DE/EN/TR), Kiro, feature flag architecture.

Will O.

Solution Architect

Esslingen

Last position:

Solution Architect at Polizei Behörde Stuttgart

Designed a migration strategy for WLS applications to BKA Cloud and Stack IT
Created a hybrid cloud for internal testing and development with Kubernetes
Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture
Integrated new CI/CD processes using Azure Pipelines
Quadrupled the processing throughput for personnel security checks
Migrated personnel security screening applications to Docker-based applications
Implemented CI/deployment pipelines using Azure DevOps
Environment: Java Springboot, Kubernetes, Oracle Weblogic, OpenID, Camunda, JUnit, TOGAF

Karin A.

Language Expert – Python Developer – AI Engineer

Leonberg

Last position:

AI Benchmark Engineer | Native language specialist German at Lilt

Task Engineering: Evaluating Coding Agents.
Asset Creation: Building realistic task environments using datasets and files in German. Crucially, these assets must remain in the target language to genuinely measure multilingual handling.
Prompting & Translation: finding failure points where AI does not work, in German.
Implementation & Verification: Supporting the development of robust solutions (reference implementations) and write highly reliable, deterministic verifier scripts (using rubric-based judging only when strictly necessary).
Calibration & Execution: Analyze execution logs and calibrate task difficulty (Easy to Very Hard) using standard Terminal-Bench run configurations against various model tiers (Haiku, Opus).
Quality Assurance: Participation in a rigorous, 4-layer human quality control process (creation, human review, calibration review, and audit) alongside automated LLM-based checks to ensure fairness, grammatical accuracy, and benchmark integrity.
Linguistic Review: Reviewing AI benchmark tasks across Hindi, Arabic, Japanese, Chinese, Czech and Turkish.

Ronald F.

Senior IT Consultant

Last position:

Senior IT Consultant – Requirement Engineer at Deutsche Bank - Strivion

Methodology: Agile project management

Goal: Digitization and implementation of CCD2 requirements within the Consumer Finance systems.

Analysis, identification, and assessment of business requirements, as well as their transfer into technical implementation requirements. Coordination and status reporting of the various requirements. Documentation and process management using UML and BMPN. Cross-functional stakeholder management, UAT testing, data management, API architecture management.

Tools: Jira, Confluence, Visual Code, Sql Developer, Enterprise Architect, MsOffice, Bruno, ALM, Camunda, Figma

Salim C.

Cloud / Systems Architect

Last position:

Cloud / Systems Architect

Development and introduction of operations processes
Preparation of complete documentation packages (including incident management and operations support) to meet compliance requirements
Introduction of a workshop on IaC (Infrastructure as Code)
Technical consulting for the project security concept (ISMS)
Installation and operation of Kubernetes clusters on AWS, on-prem, and Azure
Hybrid cloud architecture design (on-prem, Hetzner, AWS)
Analysis and troubleshooting of incidents and system outages
Network adjustments for firewall rules, gateways, OpenVPN settings, and IPsec tunnels (pfSense)
Technical consulting on Bitbucket, Jenkins, and GitLab CI/CD pipelines
Consulting on Ansible deployments and infrastructure automation
Consulting on building a scalable system in the cloud (AWS / Azure)
Technologies / Tools: Ansible, Terraform, AWS, Azure, VPN, pfSense, Jenkins, Bitbucket, Kubernetes, GitLab Runner, ISMS, Golang, Prometheus, Grafana, S3, Lambda, RDS, ECS, Cognito, OIDC, Harbor, MinIO, Postgres, Redis, Keycloak, Ceph, Proxmox, CloudFormation, PostgreSQL, Flux CD, Hetzner, IONOS, Sonatype Nexus Repository, Entra ID, Dex IdP, Pulumi

Artyom N.

Senior Software & Cloud Consultant

Ludwigsburg

Last position:

AI Automation Engineer & Solution Architect at Technology Research Project

Designed and developed an AI-powered automation platform using n8n to analyze social media niches, identify target audiences, and automate marketing strategy generation. The solution combined AI agents, workflow orchestration, and data analysis to automate research processes and generate data-driven insights.

Designed and implemented complex automation workflows using n8n
Developed AI-powered analysis agents for market and audience research
Integrated multiple APIs and AI services into automated workflows
Built automated market, competitor, and target audience analysis pipelines
Leveraged Large Language Models (LLMs) for information summarization, classification, and prioritization
Containerized and deployed the platform using Docker

Technologies: n8n, AI Agents, OpenAI APIs, Prompt Engineering, LLMs, Docker, Linux, REST APIs, Webhooks

Lothar H.

Solution Manager for the investigation PoC and exchange and refinement of an existing cloud and IoT power plant control system

Ditzingen

Last position:

Solution Manager for the investigation PoC and exchange and refinement of an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH

Investigation PoC and exchange and refinement of an existing cloud and IoT power plant control solution for certificate management of renewable energy power plants (solar, wind, biomass and others) of the largest European renewable energy power plant operator in this field, including investigation of the IoT devices used in the field and their integration and network connection with the aim of automated PKI key management.
Messaging with Kubernetes for large API-connected enterprise applications
Risk and Attack Vector Analysis, Software Quality & Bug Assessments
Agile Workload Scheduling via Jira & ConJluence
Evaluation of message streams Pub/Sub for MQ and KaJka.
Various tests with “best design approaches” regarding resilience patterns such as Circuit Breaker Designs, Throughput Measurement and Monitoring, Bulkhead Governors - for robust EA design
Integration of API Management with IBMs API Connect to Kubernetes - for agnostic Microservices API Management Designs. Google Apigee
Solution Health Check Approaches for Load Burst Situations + Remedy
Research and investigation of available potential subcontractors in the coordinating role as Solution Manager. CIS20 Controls.
Dread and Stride Security Assessments.

Alexander Z.

Fullstack Developer and DevOps Engineer

Last position:

Fullstack Developer and DevOps Engineer at Freelancer

Developing the infrastructure and improving existing infrastructure: Jenkins, Gitlab Pipeline, OpenShift, Docker, Helm Chart, Kubernetes, Artifactory, CodePipeline, CodeArtifact, Python
Documenting solutions in Jira/Confluence
Supporting other colleagues in different technical areas

Emmanuel L.

Fullstack Developer · PHP/Laravel, React/Next.js and Java

Last position:

Founder and sole developer

Development of a SaaS platform for esports teams with roles, planning, statistics and billing
Design and implementation of the architecture, external API integrations and operations
Stack: Laravel 13, React 19, TypeScript, PostgreSQL, Redis and Stripe

Maik S.

Senior Software Engineer – Java, Spring, Microservices, Cloud, Docker, BPM and Telematics Projects

Erdmannhausen

Development of a new generation of Spring Boot microservices for an archiving system on OpenShift, monitoring, security analyses

Stack: Java, Spring Boot, Kafka, Vaadin, OpenShift 4.x, Maven, Artifactory, Jenkins, Git/Github, GitHub Copilot, GitOps, CI/CD, Kargo/ArgoCD

Ivan G.

Technical Lead

Last position:

Technical Lead at Porsche Digital GmbH

Contributed to the design of the new financial services integration layer and moderated the architectural discussions
Oversaw the security concept and approval of the application
Prepared infrastructure setup and best practices for the Kotlin backend

Robin S.

Senior Cloud & Backend Engineer

Last position:

Senior Cloud & Backend Engineer at Media-Saturn-Holding GmbH

Implementing applications with Kotlin and Ktor as microservices
Using MongoDB in the MongoDB Atlas cloud
Asynchronous communication of services via Google Pub/Sub
Using Kotest and MockK for unit tests
Developing an administration frontend with TypeScript, React and Express.js
Provisioning environments in GCP using Terraform
Implementing CI/CD processes with GitHub Actions
Operating scalable production and test environments in GCP with Kubernetes, Helm and Flux CD
Monitoring environments with Prometheus and Grafana
Providing BI data in the Google BigQuery data warehouse

Sergey K.

Managing Director Cybersecurity

Last position:

Managing Director Cybersecurity at CBA-Cybersecurity and Business Advisory GmbH

Development of comprehensive services in cybersecurity, IT governance, and AI
Building and delivering strategic security solutions such as vCISO service, ISMS, SOC-as-a-Service (SIEM, SOAR, use cases, playbooks, threat hunting, incident response), AI-driven risk and compliance tools, and frameworks for outsourcing and third-party risks
Supporting companies in meeting regulatory requirements and certifications (ISMS, NIS-2, DORA, CRA, KRITIS, ISO 27001, TISAX, BSI IT Baseline Protection, EU AI Act)
Promoting innovations in cybersecurity automation, AI governance, and secure digital transformation
Responsible for company growth, client relations, and strategic partnerships

Albert F.

Lead Product Owner

Last position:

Lead Product Owner at CMBlu Energy AG

Lead Product Owner for 4 development teams
Leading and coordinating a greenfield project with parallel implementation of core components by independent teams; managing dependencies and resources
Establishing a data lakehouse approach, including analysis of data volumes and future requirements as part of a cloud migration (best-of-breed approach)
Responsible for requirements analysis, selection, and piloting of a LIMS/ELN system, supported by advising decision-makers and managing external vendors
Introducing and managing an OpenWeb UI and Azure OpenAI-based RAG system to support knowledge extraction and data-driven analyses
Setting up, configuring, and managing Jira projects, as well as developing project-specific workflows and automations
Implementing classic Scrum processes with all ceremonies and taking on the Scrum Master role for all involved teams
Assisting in hiring through interviews and assessments from a product owner's perspective
Making key architectural decisions, including selecting the platform for the data lakehouse (Databricks) and the strategic integration of LIMS and analytics platforms

Benjamin S.