Data Visualization Experts in Hamburg

Arne Zühlke

Managing Director and Shareholder

Last position:

Managing Director and Shareholder at ARNESS GmbH & Co. KG

Founded the company as a full-service consulting firm focused on purchasing and supply chain
Commercial management of the company
Digitalization and automation of work steps to reduce process costs
Project management for optimization projects
Connecting German companies with manufacturers abroad to achieve shorter delivery times and lower procurement costs at the same time
Organizing B2B meetings between international companies
Research on procurement markets (BestCostCountry) for the production of complex welded assemblies
Taking on interim management assignments

Moritz Knüppel

Scrum Master, Agile Coach & Trainer

Last position:

Scrum Master, Agile Coach at Name on request

Due to founding another company during Corona, the managing director stepped back from day-to-day operations, which left the team without leadership for around 3 years.

My task was to train a new Product Owner, form a cohesive team from the group of developers and the Product Owner, and coach this newly formed team into a state where self-organized value delivery for the customer was possible again.

Due to the political situation in the US, revenue dropped at my client's main customer, which made a change in the business model necessary for my client. I was allowed to support the transition from a service provider to an AI-first company with a broad customer base in an advisory and strategic role, hire staff, and facilitate several C-level negotiations between my client and its new customers.

TASKS

Training the team and management in Scrum and agile ways of working
Coaching a junior Product Owner to PSPO II level
Mediation of conflicts during change processes
C-level consulting and moderation of negotiations
Developing and evaluating business models
Leading the hiring process for 4 new employees

ACHIEVEMENTS

Successfully coached the Product Owner to PSPO II level
Formed a cohesive Scrum team from a team without leadership
Restored self-organized value delivery for the customer
Successful transformation to AI-native development (Claude)
Successful change of the customer's business model

TOOLS & METHODS

Team building
NVC by Rosenberg
Conflict management
Workshop facilitation
Negotiation facilitation
Leadership coaching
Personio hiring

Daniel Sedlack

Senior Software Engineer

Last position:

Senior Software Engineer at energielenker solutions GmbH

Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
Defined time-based and dependency-based jobs
Deployed to managed Kubernetes clusters using Helm
Integrated InfluxDB Cloud
Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
Developed dashboards and visualizations in Grafana
Developed unit tests with mocking using pytest
Set up a CI/CD pipeline in GitLab

Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud

Rutger Boels

Managing Director

Last position:

Partner & Managing Director at AI.IMPACT

Building an AI & Data Consultancy Practice with the goal of helping European companies adopt Artificial Intelligence and modern data platforms
End-to-end further development of a production system using modified coding agents (OpenCode). Tech stack: Kubernetes, Argo, Keycloak, Typescript, Grafana, GitOps, DevOps, Playwright
Internal research project on the use of coding agents in the field of mathematical logic for creating formal models. Use of Cursor IDE and Codex, Codex CLI. Architecture design, quality control and refactoring, as well as writing code and tests. Repository (open source) available pre-launch
Research on the role of mathematical logic as a formal language that connects IT and AI with business processes
Project lead for collecting and deploying parking recommendations for rail vehicles with significant savings potential based on real-time data in a mobility and transport company
Project lead for collecting and distributing process measurement points for real-time control in a mobility and transport company
Deputy application owner for an app used for communication in the dispatching and provision of rail vehicles

Marcus Bonfigt

Data Engineer

Last position:

Data Engineer at Deutsche Bahn AG via Scoore GmbH

Development of ETL pipelines with Talend (7/ Enterprise)
Development/adaptation of database schema/database functions (PostgreSQL)
Development of GIT CI pipelines

Technologies: Talend Enterprise, Git, PostgreSQL, Dbeaver, SQL, PL-SQL, Liquibase

Dominik Piecuch

Head of IT

Last position:

Head of IT at Aarsleff Spezialtiefbau GmbH

Disciplinary and professional leadership of the IT and service team
Definition and documentation of the Current Mode of Operation (CMO) in Confluence: application landscape, infrastructure, networks, backup & storage
Development of the Future Mode of Operation (FMO) including process analysis & stakeholder interviews with all departments using BPMN and flowcharts
Optimization of license management: reduction of ongoing software costs by approx. 17% p.a.
Introduction and establishment of Jira as the central tool for project and service management
Introduction and rollout of the HR software MindKey to digitize HR processes
Introduction of a VoIP solution with Microsoft Teams incl. PSTN connection to replace classic telephony
Introduction of the production and planning software OptiControl to digitize operational processes
Rollout of Intune as a Mobile Device Management solution for Windows, iOS and Android
Build-up of Power BI dashboards for machine park monitoring and financial reporting
Planning and execution of the IT consolidation of two locations for 170 users
Introduction of automated penetration testing with Pentera
Coaching and mentoring the team in agile methods & project management
Operational support in day-to-day business: administration, incident & change management
Management of external service providers and assurance of the quality of outsourced IT services
Responsibility for the IT budget incl. planning and controlling
Direct reporting line to management with regular management reports on IT KPIs, budget and project status

Thomas Wittlinger

Product & AI Consultant for Sensitive Data, Reporting & Automation

Last position:

Chief Product Officer at OWNLY FinTech GmbH

Freelance work for a large German family office

Built and further developed a modular B2B SaaS platform for professional wealth management and family offices, alongside freelance delivery of production-ready AI, data management, and automation solutions for the wealth management sector.

Developed an AI governance framework for regulated finance and asset management workflows, aligned with DORA, BaFin-related governance expectations, and data protection requirements, including role definitions, access levels, and decision rules.
Designed an agentic system with a locally operated open-source language model, including Qwen2.5 via Ollama, for secure querying of an asset database through text-to-SQL-to-text workflows.
Built AI-supported analysis and reporting capabilities that generate structured answers, tables, and charts from asset data, with domain validation through resolver logic and RAG elements.
Developed production-grade data import workflows for financial service provider data from CSV, PDF, and API sources, including validation, plausibility checks, and reconciliation with existing asset data.
Solved the asset matching problem without a cross-system primary key through multi-stage validation rules and human-in-the-loop approvals.

Results:

Secured EUR 250,000 in SaaS revenue in 2024, exceeding the forecast by 20%.
Acquired family office clients with EUR 1.6bn in assets under management.
Reduced manual effort for the largest client by approx. 3 days per month through automated data import and reconciliation processes.
Reduced operational error risk through structured data validation, multi-stage asset matching, and human-in-the-loop approvals.

Shahram Djafari

IT Project Manager, Data Analyst & Consultant

Last position:

IT Project Manager & Consultant (Concept and implementation of EU regulations) at Witt Group / Otto Group

Planning, steering, and monitoring the Corporate Responsibility Tech Enablement project for IT
Concept and implementation of the EUDR (EU Deforestation Regulation)
Concept and implementation of the Eco-Design Regulation
Continued support of projects within the Corporate Responsibility strategy
Definition and review of guidelines (e.g. governance, success metrics) and, if needed, analysis of issues and their solutions
Overall project management, marketing, communication, and quality assurance for the projects
Creation of the project plan including timeline/roadmap, budget, and resources
Ensuring compliance with budget and deadlines
Defining guidelines for project control, methods, and priorities
Planning and tracking resources and effort, also together with other IT teams
Evaluation of projects and preparation of results (reporting to management)
Identification and reduction of risks
Regular communication with stakeholders
Steering internal and external stakeholders and service providers (Jira, Confluence, backlog management, task tracking, SharePoint, MS 365 platform etc.)
Development of standards and process automation

Label: Azure Cloud, Jira, Confluence, Power BI, SAP BW, AWS, Miro, Bee360, Draw.io, SharePoint, MS 365 platform, Trello etc.

Ebenezer Ntiriakwa

Scientific researcher

Last position:

Applied Data Science & AI Bootcamp

Prototyped LLM/RAG document assistant; trained transcriptomics and proteomic data; used Git/Docker for reproducibility.
Strengthened ML fundamentals applicable to omics (feature engineering, validation, leakage control).

Thore Von Stürmer

Agile Coach, (interim) Scrum Master

Last position:

Agile Coach, (interim) Scrum Master at vsquadrat GmbH

Interim support of 2 teams as Scrum Master
Setting up and first support of CoPs (Community of Practice)
Establishing processes/decision structures around the CoPs
Workshops to sharpen the "Agile" CoP
Moderation of SAFe ceremonies
Further development/adaptation of the SAFe framework to the customer organization
Development of an innovation process

Approach/Methods:

Scrum
SAFe
Development/moderation of workshops
Design Thinking
Servant Leadership

Moiz Sheikh

Product Owner

Last position:

Product Owner at justtrack

Founded and led a new SDK team focused on developer experience and device-side innovation while providing data for attribution as Mobile Measurement Partner (MMP) and in-app user behavior tracking
Built in-app event visualization (funnels, cohorts), enabling product teams to identify drop-offs and improve user engagement
Implemented automatic in-app purchase tracking across iOS/Android, enabling unified monetization insights across ads and purchases
Reduced SDK onboarding complexity by cutting predefined events from 80 to 24, significantly making the SDK integration easier
Delivered anti-fraud features like Google Integrity API; prepared readiness for Privacy Sandbox and iOSAdAttributionKit, reducing fraud traffic by 93% on Android to keep the attribution logic as MMP updated to industry-wide changes
Managed a team of 6 consisting of mobile developers, full stack developers, QA and data analyst; owned sprint planning and performance cycles

Jan Gleske

Interim Senior Application Owner for Pricing, Forecasting and Prognosis Domain

Last position:

Interim Senior Application Owner for Pricing, Forecasting and Prognosis Solutions at International energy trading company

Collaborated closely with key users, business analysts and product owners to understand requirements, define priorities and derive solutions
Managed external service providers
Oversaw and executed updates, patches and release management
Handled incident, problem and change management according to ITIL
Analyzed and evaluated incidents and changes for operational impact and business processes
Monitored systems and interfaces, ensuring IT security and compliance requirements
Supported IT planning, cost monitoring and contract management
Created and executed tests for maintenance and projects
Assisted in designing technical solutions and contributed to projects such as IT landscape harmonization and modernization
Independently led operations-related projects and continuously optimized processes
Achieved significant cost savings through supplier negotiations, rightsizing and decommissioning of legacy systems
Technologies: Azure DevOps, ServiceNow, icinga, metalogic mPE/mPX, FIS, inubit, Oracle, LeanIX, One Identity, Confluence, Copilot, XML, JSON, SQL, RabbitMQ, Python, BPMN, OKR, ITIL, Kanban

Lasse Arndt

Managing Consultant

Norderstedt

Last position:

Rollout and Transition Manager at International Retailer

Analysis of the as-is IAM solutions and their functions
Definition of the functional scope for the rollout
Coordination of the internal rollout team regarding roles and activities for the international rollout initiatives
Stakeholder communication across all countries and divisions, including approval processes for the works councils
Change management design and implementation for the rollout project, including building a community and conducting community calls with divisions and countries
Design and implementation of the release management process after the rollout of the minimum viable product
Support in migrating existing solutions to the new solution
Rollout execution in the countries and post-rollout follow-up
Documentation of all processes, functionalities and responsibilities in Confluence

Bharathi Vanganuru

Senior Software Engineer (Individual Contributor)

Last position:

Senior Software Engineer (Individual Contributor) at European XFEL

Electronic logbook app developed for research centers to maintain their investigations.
Emphasizes user-driven organization of communication: experiment groups can configure information structure and notifications, while principal investigators maintain full access control.
Real-time integration with the facility’s metadata catalogue, control system Karabo, and data analysis tool enables the automatic logging of key events, complemented by manual entries as needed.

Runhua Peng

Lecturer