Denis K.-Data & AI Engineer · Python, SQL, Data Pipelines, GenAI
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Experience
Interim Lead Digital Platform & Marketing
German Dynamic Drone Center GmbH
- Designed and developed the central company platform LINK: tasks, CMS, shop, academy, image database, fleet records, and AI assistant in a shared data model on PostgreSQL.
- Supported the transformation of established standalone solutions into a cloud architecture; analyzed the existing data landscape and migrated it step by step.
- Integrated internal and external data sources via APIs and webhooks: Microsoft 365, shop with accounting integration, and manufacturer data.
- Implemented an AI assistant for knowledge access and document analysis, including an approval process before sending.
- Migrated and rebuilt a 49-page website with SEO in mind; launched data-driven tools (Drone Finder, Permit Finder) and lead forms.
- Served as the link between management, operations, and IT: analyzed processes on-site, translated requirements into technical solutions, and trained a team with little digital experience using real work.
Full-Stack & AI Engineer, Creative Director
Studio Sen
- Developed and maintained web apps, admin platforms, and data layers for 4 recurring clients (Python, TypeScript, React, Supabase / Postgres, Vercel).
- Built REST APIs, webhooks, and ETL processes, including data imports and migrations between headless CMS, databases, and shops (NDJSON, JSON, CSV).
- Used GenAI in production: LLM agents with tool use, RAG with embeddings, document extraction, and image pipelines with human approval.
- Automated development, testing, and deployment through Git and CI/CD; built a reusable platform (LINK Suite) and a token-based design system.
Communications Manager
Deutsche Sport Marketing GmbH
- Led the digitalization of design and production processes across brands for print and social media.
- Set up AI-supported production and distribution across multiple brands.
- Helped build a new service line generating over 200.000 € in revenue; documented knowledge and processes for a team of 12–15 people.
Marketing & Creative Director
Deutscher Olympischer Sportbund (DOSB)
- Managed data-driven digital communications across a network of associations: increased newsletter opt-in from 3 % to 28 %, website traffic +40 %.
- Built the team from 2–3 to 5–7 people; managed a budget of 200.000–300.000 €.
- Brought 12 association boards together around a shared strategy.
Managing Director & Brand Consultant
AGLTY Business Development Interface
- Go-to-market for 3+ products; project budgets of 20.000–100.000 €.
Creative Director
CRKR Design Studio
- Spatial and media projects for museums and pavilions, budgets up to 500,000 €, teams of 5–15 people.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Sport, Professional Services, Arts and Crafts, Information Technology, and Aerospace and Defense.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Marketing, Product Development, Sales, Project Management, Production, and Information Technology.
Summary
Data & AI Engineer with software engineering training (2.400 hrs., Python, SQL, REST APIs) and several years of experience building production platforms. I develop data pipelines, ETL/ELT processes, and data models on Postgres, integrate internal and external data sources via APIs and webhooks, and put GenAI applications into production: RAG, embeddings, document analysis, knowledge access, and process automation with approval before sending.
Most recently, as Interim Platform Lead at a specialist drone retailer, I led the transformation of established standalone solutions into a central cloud platform, including a shop with accounting integration, an AI assistant, and Microsoft 365 integration. My strength lies at the interface between IT and business teams: understanding requirements, translating them into solid technical solutions, and enabling teams to use them. Fluent in German and English (C1).
Skills
Programming
- Python
- Sql
- Typescript / Javascript
- Node.Js
- Flask
- React
Data Engineering
- Data Pipelines
- Etl / Elt
- Data Modeling
- Relational Databases
- Orm
- Data Migration From Legacy Systems
- Data Quality
Databases & Cloud
- Postgresql
- Supabase
- Cloud Services
- Vercel Serverless
- Docker
- Kubernetes
Data Integration
- Rest Apis
- Webhooks
- Microsoft 365 / Graph
- Headless Cms
- Stripe
- Accounting And Shop Integrations
Ai & Genai
- Large Language Models (Claude, Gpt)
- Rag
- Embeddings
- Agents With Tool Use
- Prompt Orchestration
- Document Analysis
- Image And Document Pipelines
- Human-In-The-Loop Approval
Engineering Practices
- Git
- Github
- Ci/Cd
- Automated Testing
- Deployment
- Monitoring
- Authentication And Authorization
Governance
- Data Protection (Gdpr)
- Responsible Use Of Ai
- Technical Standards And Documentation
Collaboration
- Requirements Analysis With Business Teams
- Stakeholder Management
- Training And Enablement
- External Partners
Languages
Education
Hochschule Darmstadt
Diplom-Designer (FH) · Communication Design · Darmstadt, Germany · very good
Certifications & licenses
Software Engineering, Specialization in Web Development
Masterschool Institute of Technology (MSIT)
Statistics
Experience
Global experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Denis is based in Frankfurt, Germany and can operate in on-site, hybrid, and remote work models.
Denis speaks the following languages: German (Native), English (Advanced), Spanish (Elementary), French (Elementary).
Denis has at least 14 years of experience. During this time, Denis has worked in at least 6 different roles and for 6 different companies. The average length of individual experience is 2 years and 3 months. Note that Denis may not have shared all experience and actually has more experience.
Based on recent experience, Denis would be well-suited for roles such as: Interim Lead Digital Platform & Marketing, Full-Stack & AI Engineer, Creative Director, Communications Manager.
Denis's most recent position is Interim Lead Digital Platform & Marketing at German Dynamic Drone Center GmbH.
In recent years, Denis has worked for German Dynamic Drone Center GmbH, Studio Sen, Deutsche Sport Marketing GmbH, and Deutscher Olympischer Sportbund (DOSB).
Denis is most experienced in industries like Sport, Professional Services, and Arts and Crafts. Denis also has some experience in Information Technology and Aerospace and Defense.
Denis is most experienced in business areas like Marketing, Product Development, and Sales. Denis also has some experience in Project Management, Production, and Information Technology.
Denis has recently worked in industries like Sport, Information Technology, and Aerospace and Defense.
Denis has recently worked in business areas like Marketing, Product Development, and Production.
Denis holds a Master in Communication Design from Hochschule Darmstadt.
Denis has 1 certificate: Software Engineering, Specialization in Web Development.
Denis will be available full-time from November 2026.
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Calculated based on our freelancers’ daily rates as of 3 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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