BPMN 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

Pierre-Jean A.

BI Expert | ETL & Data Architecture | ERP Integration | Reporting

Last position:

Verification Engineer – Aviation at Tri.Merge GmbH

Automated analysis of test script repositories using Python
Set up a SQLite database for signal and value tracking
Identified critical inconsistencies through ad hoc SQL queries
Technologies: Python, SQLite, Excel/ODBC

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

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.

Noah H.

Senior Consultant| Business Process Management

Waiblingen

Last position:

Organizational structure | Setup and development

Potential analysis and process documentation for a damage restoration company with ten employees.

Starting point: Only the senior knew how projects were managed, not his successor. Almost nothing had been written down.

My tasks:

Recording the current state through discussions with the employees who actually do the work
Documenting the actual process in BPMN, supported by AI
Clarifying roles, decisions and responsibilities
Identifying weak points and potential in the project process
Supporting the implementation within the team

Result: The project process is shown as a diagram on a single page. Today, the successor manages the projects without asking the senior. The knowledge is no longer held by one person.

Technologies and methods: BPMN 2.0, AI-supported process documentation, on-site interviews.

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

Gildas D.

System Team Lead Diagnostics – Hybrid & Electric Drives (HEV/MHEV/PHEV) for Transmission and Engine (NA/SA)

Eberdingen

Last position:

System Team Lead Diagnostics – Hybrid & Electric Drives (HEV/MHEV/PHEV) for Transmission and Engine (NA/SA) at Stellantis e-transmission

Technical lead of diagnostics activities for eDCT transmissions and drive systems in the area of hybrid (HEV), mild-hybrid (MHEV), and plug-in hybrid vehicles (PHEV)
Responsibility for the development and validation of DTC strategies (OBD / EOBD) for markets in North and South America and the EU
Coordination between interdisciplinary teams (system development, software, safety, calibration, after-sales)
Creation and maintenance of diagnostic specifications (DID, DTC matrix, snapshot, freeze frame) according to STLA standards
Support with troubleshooting, validation tests, EOL processes, and internal audits
Technical interface to suppliers (Bosch, Valeo, etc.) in the area of actuators, sensors, and electric pumps
Creation of diagnostic RFQ

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

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

Thomas A.

Interim Assignment

Wernau (Neckar)

Last position:

Interim Management at Vincorion Power Systems GmbH

Process and project management to optimize products and development processes for energy systems
Technical risk management
Requirements engineering and system architecture
System FMEA of power generator units and energy storage modules aiming for generic structures
Claims management according to Section 313 of the German Civil Code
Regulatory environment: military and NATO standards, AQAP, VG norms

Axel Z.

Freelance Management Consultant

Bietigheim-Bissingen

Last position:

Freelance Management Consultant at Freelance Management Consultant

Advising companies and institutions in the areas of customer service, customer experience, customer centricity, user journeys, CRM strategy, operations, digital banking, payments, and energy
Selection and implementation of CRM systems
Selection and implementation of billing/ERP systems
Selection and implementation of omnichannel systems
Selection and implementation of knowledge management systems
Interim manager (COO, CCSO)
Project management for CRM and IT projects as well as software rollouts
Incident management (leading task forces)

Elvir B.

Software Architect and Software Developer

Last position:

Software Architect and Software Developer at Noctica IT GmbH

NocTime time tracking, workshop planner, meal delivery service app
LLM-based chat bot to control the NocTime time tracking system via voice input
New and further development of customer solutions based on the Noctica SAS app framework
Technologies: Java 17, Spring Boot, JPA, Hibernate, JavaScript, TypeScript, Angular 20, Angular Material, React, C#, Docker, Bash, Git, GitLab, RedMine, SQL, DBeaver, MariaDB, PostgreSQL, Python, TensorFlow, Ollama, various LLMs

Dean R.

CEO / Chief Scientist

Last position:

CEO / Chief Scientist at ENUM

Blockchain platform technology
Blockchain digital platform / Digital Economy.

Marcel K.