Hire the Best Data Scientists
in Germany

Hey I'm Yannik 🪐 ▸ I landed $2M+ in contracts with BP, Shell, and NATO by building ML systems for a pipeline inspection company ▸ I've generated $35K for a YouTube agency through an N8N reporting automation ▸ I built a voice AI MVP for a therapy startup ▸ I'm also a PhD in theoretical physics But don't worry – I speak human. I get obsessed with details so you don't have to. Build it right, make it work, explain how to use it. That's it. Let's talk about your project.

🚀Hi! I help startups go from demo → market-ready AI product - fast! I plug into your team and ship production ready features that customers love. 🏆 Top 1% (Expert-vetted) | 8+ years| 100% JSS | 35+ Delighted Clients | 18+ E2E Deployments 🎯 "𝘒𝘶𝘯𝘫𝘢𝘯 𝘪𝘴 𝘢𝘯 𝘢𝘣𝘴𝘰𝘭𝘶𝘵𝘦 𝘨𝘦𝘮! 𝘚𝘩𝘦 𝘸𝘦𝘯𝘵 𝘢𝘣𝘰𝘷𝘦 𝘢𝘯𝘥 𝘣𝘦𝘺𝘰𝘯𝘥. 𝘛𝘦𝘢𝘮𝘪𝘯𝘨 𝘶𝘱 𝘸𝘪𝘵𝘩 𝘩𝘦𝘳, 𝘸𝘦 𝘣𝘶𝘪𝘭𝘵 𝘳𝘰𝘣𝘶𝘴𝘵 𝘥𝘢𝘵𝘢 𝘱𝘪𝘱𝘦𝘭𝘪𝘯𝘦𝘴, 𝘰𝘱𝘵𝘪𝘮𝘪𝘻𝘦𝘥 𝘓𝘓𝘔𝘖𝘱𝘴, 𝘵𝘳𝘢𝘯𝘴𝘪𝘵𝘪𝘰𝘯𝘦𝘥 𝘧𝘳𝘰𝘮 𝘧𝘢𝘯𝘤𝘺 𝘥𝘦𝘮𝘰𝘴 𝘵𝘰 𝘢 𝘴𝘤𝘢𝘭𝘢𝘣𝘭𝘦 𝘈𝘐 𝘱𝘳𝘰𝘥𝘶𝘤𝘵 𝘵𝘩𝘢𝘵 1000𝘴 𝘰𝘧 𝘤𝘶𝘴𝘵𝘰𝘮𝘦𝘳𝘴 𝘭𝘰𝘷𝘦!" - CTO, Healthcare startup, SF (1 of many 5-star reviews) Over 7+ years on Upwork, I've helped startups and enterprises across sectors - Marketing, Healthcare, Law, Education, and Agribusiness - translate AI into measurable business ROI by building the right data and ML foundations. Whether collaborating with 1000+ employee companies or lean 2-person startups, I adapt to the team’s needs: reporting directly to CEOs or CTOs as an AI/Data Lead, or integrating as a hands-on contributor alongside in-house developers. I bring a “brain-for-hire” + hands-on mindset - tackling strategic and technical challenges with equal enthusiasm, always focused on delivering outcomes, not overhead. 👀 See 8+ Case Studies & Demos: totemxlabs dot com/#casestudies 🎯 Recent Success Stories (2024-2025) 1. Graph RAG for Marketing & Strategic decisions Implemented knowledge graph-powered RAG systems using Neo4j for marketing intelligence and SEO optimization - enabling sophisticated knowledge checks and relationship-based insights that traditional RAG cannot achieve. 2. Workplace Safety Vision System Deployed end-to-end computer vision solution for workplace health and safety compliance - real-time hazard detection, PPE verification, and automated incident reporting. 3. Healthcare Diagnostic Knowledge Graph Developed evidence-based diagnostic system using knowledge graphs for healthcare - producing auditable, traceable diagnostic reasoning paths that meet clinical documentation standards. 🧭 My Proven AI Product Process: Discovery: Identify high-ROI AI opportunities aligned with your goals. Data Assessment: Evaluate data availability, relevance, quality. Solution Design: Define user journeys, tech stacks, evaluation frameworks. Development: Optimized sprints for cost-effective, robust AI solutions (min. tech debt). Deployment: Scalable architectures, rigorous testing for production readiness. 💡 Technical Expertise: GenAI & LLMs: LLM Ops (Fine-tuning, Prompt Engineering, RAG, Agentic Workflow, Multi-agent systems, Memory Management), LangChain, LangGraph, LlamaIndex, LangServe; Vector Search (Pinecone, Weaviate, Chroma, FAISS). AI/ML & MLOps: Predictive Analytics, Recommender Systems, RLHF; Model Lifecycle, MLflow, Feature Stores; PyTorch, TensorFlow, Scikit-learn. Cloud & Infra (Multi-cloud): AWS (Lambda, ECS, ElastiCache, DynamoDB, API Gateway), Azure, GCP, Vertex AI, SageMaker; Docker, Kubernetes (EKS/GKE). Software & Data Eng: Python (expert), Fullstack; FastAPI, Flask, Django; REST, GraphQL, OpenAPI, AsyncIO; Batch/Stream (Airflow, Spark, Kafka), Pandas, Polars, dbt; ETL/ELT. DBs/Arch/DevOps: PostgreSQL, MySQL, DynamoDB, MongoDB, Vector DBs (Pinecone, Weaviate, ChromaDB), Neo4j; Microservices, GitHub Actions, Terraform, CI/CD pipelines. 🤝 Why Partner With Me? I help architect and develop E2E AI solutions merging tech excellence with business acumen. Let's transform the AI wave into your competitive edge. ✅DM me if you have an exciting problem to solve! —Updated January, 2026— Latest LLMs (2025-26): GPT-5.2 (OpenAI's flagship with 26% lower hallucination rate) Claude 4.5 Opus & Sonnet 4.5 (200K context, breakthrough coding performance) Gemini 3 Pro & Flash (Deep Think mode, multimodal excellence, 1M token context) DeepSeek V3.2 & R1 series (685B parameters, hybrid thinking/non-thinking modes) Qwen 3 series (open weight dense and mixture-of-experts (MoE) model for reasoning tasks) Agentic AI Frameworks: Langchain & LangGraph (stateful graph-based workflows, production-grade orchestration) OpenAI Agents SDK (lightweight with guardrails and handoffs) CrewAI (role-based multi-agent collaboration, human-in-the-loop) LlamaIndex Agents (RAG-first agent capabilities) AI workflow automation: n8n Knowledge Graphs & Graph RAG: Neo4j 2025 features: Community summaries, parallel retrievers, LLM Knowledge Graph Builder Neo4j Aura Graph Analytics Graph RAG architecture Cypher query optimization, graph embeddings for ML Agentic knowledge graph construction with provenance Computer Vision Applications: Workplace safety, Video generation Multimodal Vision Language Models (VLMs) Context engineering for high quality content generation

⭐⭐⭐⭐⭐ 5.0/5.0 Ex-Amazon, Ex-Adobe Top 1% Expert-Vetted on Upwork —. 150+ AI projects shipped at 5/5 stars and 100% Job Success. Advisor to venture-funded AI startups. I architect production LLM agents, RAG systems, and voice AI for teams that need senior thinking and staffing. 𝗪𝗛𝗔𝗧 𝗜 𝗗𝗘𝗦𝗜𝗚𝗡 ✅ Multi-agent systems on LangGraph, OpenAI Agents SDK, and Google ADK — with MCP and A2A interop for tool use, memory, and cross-framework orchestration ✅ Production RAG with hybrid search, Voyage rerank-2.5 / Cohere Rerank v3.5, agentic retrieval, citation enforcement, and RAGAS evaluation ✅ Voice AI agents on LiveKit Agents + Pipecat with Deepgram Nova-3, Cartesia Sonic-3, ElevenLabs Flash v2.5 — sub-300ms end-to-end latency ✅ LLM fine-tuning and adapter training (LoRA, QLoRA, DoRA) with Unsloth, Axolotl, TRL on Llama 4, Qwen3, Mistral, DeepSeek ✅ Time-series and forecasting systems (TimeGPT, PatchTST, Prophet) for trading, demand, and operations ✅ Computer vision and generative imaging/video (SAM 3, YOLO26, Flux, Veo 3.1, Kling 3.0, Runway Gen-4.5) 𝟮𝟬𝟮𝟲 𝗦𝗧𝗔𝗖𝗞 GPT-5.5, Claude Opus 4.7 / Sonnet 4.6, Gemini 3 Pro, Llama 4, DeepSeek V3.2 · LangGraph, OpenAI Agents SDK, Google ADK, Pydantic AI, DSPy · LlamaIndex, Haystack · pgvector, Qdrant, Pinecone, Weaviate, Milvus · LangSmith, LangFuse, Arize Phoenix · vLLM, SGLang for self-hosted inference · AWS Bedrock, Azure AI Foundry, Vertex AI · Python, FastAPI, Node.js, TypeScript, Next.js · MCP servers and A2A agent communication 𝗕𝗘𝗬𝗢𝗡𝗗 𝗧𝗛𝗘 𝗖𝗢𝗗𝗘 I bring senior product and people leadership — having managed engineering organizations approaching a thousand people and led products from idea to end-of-life. I speak on AI and entrepreneurship at conferences and podcasts, and advise venture-funded AI startups on architecture, hiring, and go-to-market. 𝗖𝗥𝗘𝗗𝗘𝗡𝗧𝗜𝗔𝗟𝗦 ▸ Top 1% on Upwork — Expert-Vetted, Top Rated Plus, 100% Job Success Score ▸ 150+ AI projects shipped at 5/5 stars ▸ Ex-Amazon, Ex-Adobe, Ex-Accenture ▸ Mentor and advisor at multiple venture-funded AI startups ▸ Speaker and panelist on AI and entrepreneurship ▸ Founding partner at a boutique AI engineering studio — Frankfurt and US team 𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞 Senior engineering and architecture only. Engagements typically begin with a paid 1–2 week discovery sprint to scope architecture, model selection, and milestones — then fixed-scope delivery with weekly demos. I work async-friendly across EU and US time zones and turn down work that doesn't merit senior attention. If you're shipping AI to production and need an architect who's done it 150+ times, message me with what you're building.

As a software developer, you have an understanding of mechanical and digital processes. Our main focus is on the individual realization of software solutions for our customers. Every problem in the IT area is individual, based on this, the solution must also be individually tailored to our customers, their wishes and needs. Complex problem structures are our incentive; to use our many years of experience in software development together with our customers to carry out a successful project, is what drives us. Our Services Web development A professional internet presence is the digital flagship of your company. Whether it's a company website or an online shop, we advise and support you with our many years of experience. Portfolio: HTML, CSS, PHP, JavaScript, WordPress, Shopware and many more - don't hesitate to contact us. Software development Individual software solutions are often required for complex processes in the company. Together we develop individual software solutions according to your ideas, which are tailored to your company and your needs. The possibilities are limitless. Portfolio: C, C++, C#, Java(FX), Python, Spring and many other code languages - get an individual offer. App development Mobile software solutions have become ubiquitous in our everyday lives. We develop your app together with you and place it in the Android and iOS app stores. Reach more customers with your app, build communities, use the app to control devices or facilitate communication in your company. Cloud The technology of the future is the cloud-based application. We implement your software solutions and requests in the cloud. Whether private, public or solutions in the hybrid cloud, use the possibilities for your applications together with us. Data Science & Analytics Data is the basis of many successful business decisions. Analyzing data can help you make complex business decisions, improve business processes and provide a better understanding of upcoming trends. We support you in collecting and evaluating your data. DevOps We offer you complete, professional solutions and fully automated pipelines for deployment. Devops - solutions for continuous integration and continuous deployment leave nothing to be desired. Let's create the necessary conditions for operation together. Why us? 1. Many years of experience in software development - Numerous successful development projects - Many years of experience with numerous development environments - 5 years software developer/data scientist at the largest German comparison portal 2. Solution-optimized perfectionism - We are only satisfied when the customer receives the best possible solution - Complex problems and individual customer requests are an incentive for us 3. Personal passion - Software development & programming languages are our passion - For Finkformatics, customer requests are more than a job - We love, what we do

I’m a bioinformatics specialist with deep expertise in multi-omics, advanced statistics, and data-driven computational biology. I build end-to-end analysis pipelines, machine-learning workflows, and full-stack analytical applications tailored for research and biotech. My core strengths include: • Multi-omics analysis: bulk & single-cell RNA-seq, ATAC-seq, proteomics, lipidomics, metabolomics, cytokine panels, and integrative multi-omics modeling (MOFA, DIABLO, WGCNA, chromVAR, network analysis). • Advanced statistics & computational methods: differential analysis, mixed effects models, longitudinal designs, batch correction, feature selection, Bayesian modeling, and high-dimensional inference. • Machine learning & AI: supervised and unsupervised learning, classification, clustering, feature engineering, model tuning, and interpretable ML for biological and clinical datasets. • Python and R engineering: reproducible pipelines, notebooks, renv/venv environments, optimized code, data wrangling, visualization, and automation (tidyverse, DESeq2, Seurat, limma, sklearn, PyTorch-light workflows). • Biostatistics & data science: rigorous data QC, exploratory analysis, normalization, imputation, effect estimation, and publication-ready figures. • Full-stack app design & dashboards: R Shiny, Plotly Dash, Streamlit, FastAPI back ends, and modern front-end development using React, Vite, Tailwind, component libraries, and API-driven architectures. I build clean, fast, and interactive tools for analytics, reporting, and client use. I deliver production-ready, reproducible, and well-documented workflows suitable for research labs, startups, and clinical projects. At the tail end of my skill set, I also support small-scale computational chemistry tasks including virtual screening, molecular dynamics, and light drug-design workflows, when relevant to biological findings. If you need a bioinformatics expert who merges strong statistical foundations, robust coding, full-stack development, and deep domain knowledge, I can take your project from raw data to polished, actionable insight.

I take pride in delivering top-notch work tailored to your needs. Let's collaborate to turn your ideas into reality! Key Qualifications ✅Business Intelligence Engineer (Germany) ✅ Master's in Computer Engineering (Germany) ✅ Certified TensorFlow Developer ✅ Certified Professional Data Analyst ✅ Certified Power BI Data Analyst Upwork Achievements 🏆 Top-Rated PLUS Freelancer 💼 150 Projects Completed with 5 Stars Feedback, showcasing consistent excellence in both ongoing and completed tasks Core Expertise 📌 Data Engineering 📌 Data Visualization 📌 Python and Machine Learning solutions 📌 Personalized Python/Machine Learning tutoring sessions 📌 Engaging and high-quality technical content creation