OpenAI Expert 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.

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

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

Chaima D.

Data Scientist Intern

Last position:

Data Scientist Intern at Marelli Automotive Lighting

Developed and deployed a deep learning model for automated keypoint detection in headlamp light distributions.
Prepared and processed datasets, and selected VGG16 after benchmarking CNN architectures for the best accuracy efficiency trade-off.
Delivered a Flask REST API, containerized with Docker, and integrated the solution into an existing internal system, enabling automated and efficient evaluation of headlamp designs.

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

Andreas N.

Project Manager

Last position:

Project Manager at Rundfunk Berlin-Brandenburg rbb / IVZ

Implementation of a GDPR-compliant knowledge management system "Ylvi" using Microsoft Azure Cloud Services (EU operation)
Deployment of RAG technology (Retrieval Augmented Generation) and ChatGPT model for a digital coaching service
Provision of company information: training documents, training videos, intranet content, technical concepts, best-practice processes, change management materials
Used as an expert system in user support, with key users and end users
Knowledge transfer on LLMs and RAG
Research and development of RAG model structure and language model configuration
Solution architecture, document analysis, test concept for language models, knowledge transfer workshops, content analysis, test concept, system prompt development
Development control, stakeholder management, change management, implementation, deployment

Marcel K.

Process Optimization and Solution Architecture

Asperg

Last position:

Freelance at Kleber Digital Consulting

Christoph D.

Agentic RAG AI System