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Your system is failing, a critical deployment crashed, or your data pipeline is blocked? You don't need a lengthy consultation—you need an architect who can dive into the code and fix the root cause immediately. I am a Senior Software Architect and Lead Developer with over 6 years of experience engineering, evaluating, and rescuing complex enterprise-level systems. I specialize in resolving severe logical breaks across the entire stack—from the database layer to the frontend interface. How I can immediately help you: Backend & API Rescue: Debugging and stabilizing Python backends, fixing broken APIs, and resolving asynchronous data flow issues. Frontend Troubleshooting: Resolving React (JavaScript/TypeScript) rendering blocks, state management failures, and UI crashes. Data & Infrastructure: Unclogging SQL databases, optimizing complex queries, and fixing Docker/deployment bottlenecks. AI & Logic Evaluation: Evaluating, refactoring, and fixing AI-generated code to ensure it meets strict architectural constraints. In my daily work, I architect and build production-grade stochastic simulation engines and complex SaaS platforms. I don't just patch symptoms; I analyze the entire architecture to ensure the infrastructure is robust and scalable. If your production environment is compromised or you have a high-priority bug that needs fixing today, send me a message with your logs or repo access. I am ready to start debugging right now. Let's get your system back online.

✪ Guaranteed Success ✪ Guaranteed Delivery ✪ Timely Response ✪ Project Ownership ✪ Engineering with Business Context ✪ Scalable by Design ✪ Communication You Can Rely On Hire someone who builds data systems with purpose, not just pipelines. I architect, engineer, and deliver systems that solve real business problems. I’m a Data Engineering Leader with 10 years of experience designing pipelines, managing large-scale data warehouse migrations, building real-time ingestion systems, and delivering high-impact business intelligence platforms. I've worked across banking, telecom, streaming, and SaaS, turning raw data into decision-grade systems. Whether you're building real-time ingestion pipelines with Kafka, optimizing ETL for large-scale data lakes, migrating from OLTP to distributed OLAP systems, automating DAGs with Airflow, or standardizing BI across fragmented teams, I bring both the architectural vision and hands-on expertise to deliver robust, scalable solutions. Data Architecture ➤ Logical and physical modeling, ER diagrams, schema optimization ➤ DWH design using Teradata, Greenplum, and PostgreSQL Real-Time Systems and Pipelines ➤ Kafka, Spark, TimescaleDB, Airflow, Debezium, MQTT ➤ Python-based microservices (asyncio, psycopg2) Business Intelligence and Analytics ➤ Qlik Sense, Tableau, Apache Superset, Jasper Reports ➤ KPI dashboarding, multi-source integration, stakeholder enablement Cloud and DevOps ➤ AWS (Lambda, S3, EC2, IAM), Docker, Bash scripting ➤ GitHub workflows, CI/CD pipelines, systemd-based deployments Data Scraping and Mining ➤ Custom web scrapers, API clients, document extraction engines ➤ Text mining using Elasticsearch and Python Project Experience ➤ Built scalable Kafka pipelines for IoT telemetry ingestion using MQTT and TimescaleDB ➤ Migrated mission-critical warehouses to MPP OLAP systems for banking and telecom clients ➤ Led multi-team Agile delivery with full JIRA and Git ownership ➤ Created semantic search engines using Elastic and Python ➤ Delivered BI dashboards enabling product, finance, and marketing teams to self-serve insights What You Can Expect? Clear communication and regular syncs Strong ownership from design through deployment Systems built for performance, resilience, and maintainability A partner who understands both technical depth and business context If you're looking for someone who can lead your data engineering efforts and deliver results that scale, I'm ready to help.

👋 Hi, I’m Markus – Marketing Automation Engineer & AI Systems Builder Vienna-based | Fast replies | Results that scale 🚀 I design and build intelligent automation systems that turn your business into a lead-generating, appointment-booking machine—without you lifting a finger. Whether you're a solo consultant or a fast-growing team, I help you scale with tools like n8n, Zapier, Make.com, Python, and AI chatbots (ChatGPT, LangChain). My systems work 24/7 to bring in qualified leads, book meetings, and follow up across channels—so you can focus on closing, not chasing. 🧠 What I Offer → What You Get AI-Powered Chatbots (ChatGPT, LangChain) → Get high-quality leads on autopilot Workflow Automation (n8n, Zapier, Make.com) → Book sales calls without lifting a finger API Integrations & Python Development → Follow up via email, chat & SMS automatically CRM, Calendar & Email/SMS Sync → Never miss a lead or double-book again Ad Funnel Automation → Consistent pipeline of sales-ready leads ⚙️ How It Works Strategy Workshop – We map your business needs and client journey Custom Build – I design and implement your automation system Launch + Optimize – I test, refine, and monitor your system for results 🛠️ Tools I Use n8n • Zapier • Make.com • Python • LangChain • OpenAI Twilio • SendGrid • Mailchimp • Calendly • Zoom • YouCanBook.me Landbot • ManyChat • AWS • GCP • SQL/NoSQL • Metabase • CRM Platforms 🤝 Why Work With Me? Clear, no-fluff communication Fast turnarounds & ongoing support Custom systems built around your business, not templates Deep tech skills + real business understanding Let’s automate the busywork and turn your marketing into a scalable growth engine. If you’re tired of manual lead gen and want smarter systems that deliver real results — I’m here to build them. 📩 Reach out anytime — I reply quickly and keep things moving!

I’m a Python backend and full-stack developer working with automation, backend systems, and data collection. I help teams: - fix bugs and resolve urgent production issues - build and maintain backend services and APIs - create low-level Python automation scripts - automate workflows using n8n, Make, and external APIs - develop web scrapers and data parsers (including dynamic websites) What I can help you with: - Backend development with Python (FastAPI, Django) - REST APIs, WebSockets, background jobs - Databases: PostgreSQL, SQLAlchemy - Automation: Python scripts, n8n, Make - Web scraping & data pipelines (auth, rate limits, anti-bot) - Bug fixing, refactoring, ongoing support Tech stack: - Python, FastAPI, Django - PostgreSQL, SQLAlchemy - React, JavaScript, TypeScript - Docker, Docker Compose - CI/CD (GitHub Actions, GitLab CI) - AWS (EC2, S3, Lambda, ECS), DigitalOcean, Heroku If you’re looking for a reliable Python backend developer or full stack developer to help with your project, feel free to reach out.

I help businesses solve complex database problems, optimize SQL performance, and build reliable data solutions. With over 17 years of experience, I specialize in SQL Server, Oracle, ETL development, database optimization, and enterprise data engineering. Whether you need to troubleshoot a slow database, optimize SQL queries, migrate data, or build scalable ETL pipelines, I focus on delivering reliable and maintainable solutions that improve business performance. I can help with: • SQL query optimization and performance tuning • Database design and data modeling • ETL development and data integration • Data warehouse design and implementation • SQL Server and Oracle database solutions • Data migration and reporting systems • Backend development using Python and C# I focus on delivering reliable, scalable, and maintainable solutions that solve real business problems. If you're looking for someone who can quickly understand complex database issues and deliver practical, high-quality solutions, I'd be happy to discuss your project.

Hi, i am an Environmental Engineer and consultant in Development and Administation of relational Databases and classification of Geodata. I specialize in statistical analytics and the construction of databases for scientific purposes especially in the fields of engineering and chemistry, but of course i will be glad to help you setup any kind of database.