Daniel Schlager - Full-Stack Developer & AI Engineer

Q: Where is Daniel based?

Daniel is based in Salzburg, Austria .

Q: What languages does Daniel speak?

Daniel speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Daniel have?

Daniel has at least 20 years of experience. During this time, Daniel has worked in at least 42 different roles and for 44 different companies . The average length of individual experience is 5 months . Note that Daniel may not have shared all experience and actually has more experience.

Q: What is Daniel's latest experience?

Daniel's most recent position is AI Automation in E-Commerce at Looops .

Q: What companies has Daniel worked for in recent years?

In recent years, Daniel has worked for Looops , Umwelt Service Salzburg , Ferstl Immobilien GmbH , NDA , and Kintari .

Q: Which industries is Daniel most experienced in?

Daniel is most experienced in industries like Information Technology , Advertising , and Education . Daniel also has some experience in Agriculture , Real Estate , and Telecommunication .

Q: Which business areas is Daniel most experienced in?

Daniel is most experienced in business areas like Information Technology , Product Development , and Research and Development . Daniel also has some experience in Accounting , Marketing , and Logistics .

Q: Which industries has Daniel worked in recently?

Daniel has recently worked in industries like Advertising , Education , and Information Technology .

Q: Which business areas has Daniel worked in recently?

Daniel has recently worked in business areas like Information Technology , Product Development , and Research and Development .

Recommended expert

Salzburg, Austria

Check rate

Experience

Apr 2026 - Jun 2026

3 months

AI Automation in E-Commerce

Looops

AI automation roadmap for a D2C/B2B e-commerce company.
Customer service bot with RAG over support tickets and product data, OCR pipeline for incoming invoices with writeback to Business Central, lead gen and posting automation.
Deterministic n8n workflows with EU-hosted models.
n8n, RAG / Mistral, Qwen/BGE embeddings / Business Central API, HubSpot, Shopify / Scaleway, S3 / Claude Code, OpenCode.

Apr 2026 - Jun 2026

3 months

Salzburg, Austria

AI Strategy & Use Case Development

Umwelt Service Salzburg

AI strategy concept and implementation roadmap for an energy consulting company.
Use case matrix with nine application scenarios (e.g., funding research, chatbot, AI first consultation, topic radar), implemented as reusable Claude Code skills.
AI strategy, use case analysis / Claude Code skills / n8n.

Mar 2026 - Mar 2026

1 month

AI Workshop for Real Estate & Event Agencies

Ferstl Immobilien GmbH

AI workshop: ad campaigns combined with AI search, landing page creation with AI and WordPress integration.
Google Ads, Meta Ads / WordPress, Replit.

Feb 2026 - May 2026

4 months

AI Agent for Security Questionnaires (RAG)

NDA

AI agent to automate security questionnaire answers (200–300 questions per questionnaire).
RAG over security policies, ISO 27001 documents, and FAQs; LLM-supported answer drafts validated by the info-security officer.
Focus on deterministic, traceable answers.
LLM, RAG / Claude Code, OpenCode.

Jan 2026 - Jun 2026

6 months

Cross-Platform Desktop App “Kintari”

Kintari

AI desktop assistant for knowledge management and automation: local agent on company data, document processing, PDF population from templates, and MCP tool integration.
Cross-platform desktop client (Windows, macOS, Linux) with Avalonia UI on .NET 10 (XAML/MVVM), graph visualization and RDF-based knowledge graph, Velopack auto-update, and mobile shells for Android/iOS.
Designed and implemented UI/UX and cross-platform frontend (XAML) myself.
C#, .NET 10, Avalonia UI / MVVM, CommunityToolkit.Mvvm / MCP, LLM, RAG / Velopack, Serilog / Android, iOS / Claude Code, OpenCode.

Jan 2026 - May 2026

5 months

AI Assistant & Sales OS – React PWA with LLM Integration

Pollhammer Unternehmensgruppe

Multi-tenant AI platform with modular frontend: Progressive Web App in React 18 with Refine and Mantine, connected to a FastAPI backend.
AI assistant with business card scanner (Claude Vision), per-user Telegram bot (voice→memo, photo→contact), appointment reminders, and Word visit report export.
MCP server (24 tools) controlled via Claude, Authentik OIDC login, NocoDB for master data, n8n for workflows.
MVP UX analysis, UI/UX design and development of reusable components independently.
React 18, Refine, Mantine, PWA / TypeScript / FastAPI, Python 3.12 / MCP, Claude API (Vision) / PostgreSQL/pgvector, n8n, Authentik / Coolify, Caddy, Hetzner / Claude Code, OpenCode.

Jan 2026 - Jan 2026

1 month

AI Strategy Course Creation

Intersport Austria

Analyzed existing training videos, developed an AI production methodology and prompting frameworks for scalable training videos.
LLM, prompting frameworks / video AI.

Jan 2026 - Jan 2026

1 month

AI Phone Assistant

NDA

Technical implementation of an AI phone assistant.
Set up the system architecture, trained voice models, implemented the master prompt, and connected external interfaces.
VAPI, Make.com, Calendly / LLM, prompt engineering / Claude Code, OpenCode.

Nov 2025 - Jun 2026

8 months

RS ServiceDesk – AI Service Desk Platform (React/Tailwind)

R+S Group

Client-branded service desk platform: projects, tickets, contacts, maintenance contracts, and AI-powered scheduling (ranked suggestions, RSVP invitations, Outlook/Google calendar sync).
Fully designed and built the frontend – React 18 with Vite, Tailwind CSS, and shadcn/ui (custom design system with about 55 components, including calendar UI).
FastAPI backend, Authentik OIDC login, n8n for cron/scheduling, MCP server controlled by Claude.
React 18, Vite, TypeScript / Tailwind CSS, shadcn/ui, Radix / FastAPI, PostgreSQL/pgvector / Authentik, n8n, MCP / Claude Code, OpenCode.

Nov 2025 - Feb 2026

4 months

AI-based Market Reporting

NDA

Built an AI pipeline for automated market reports.
Prepared training data, developed prompt templates, set up a RAG-enabled knowledge base, prototyped AI text drafting, and automated template transformations.
Python, RAG, LLM, prompt engineering / PowerPoint, Excel / Claude Code, OpenCode.

Nov 2025 - Nov 2025

1 month

Vienna, Austria

Seminar “Develop your own GPTs & optimize processes”

Austrian Standards Plus GmbH

Full-day seminar on GPT development and process optimization with AI.
ChatGPT, Custom GPTs, Prompt Engineering.

Nov 2025 - Nov 2025

1 month

Seminar “Create your own AI Agent”

LIMAK Austrian Business School

Executive Essentials intensive course on AI agent development.
AI Agents, LLM, Prompt Engineering.

Nov 2025 - Nov 2025

1 month

AI workshop on process optimization

Organoid GmbH

Online workshop on process optimization and use case identification.
Focus on automation and AI capabilities of Odoo 19.
Odoo 19, AI automation.

Nov 2025 - Nov 2025

1 month

AI workshop on marketing & automation

Sinnvoll Digital GmbH

6-hour workshop on AI-powered marketing.
Prompting frameworks, asset creation, ad optimization, AI-driven website design, and workflow automation.
ChatGPT, Claude, Gemini / n8n, Make / Meta Ads, Google Ads.

Oct 2025 - Nov 2025

2 months

AI workshop & EU AI Act certification

BT Bau GmbH

Two 4-hour workshops including EU AI Act exam.
AI basics, data privacy, prompting, Microsoft Copilot, Custom GPTs.
ChatGPT, Microsoft Copilot / EU AI Act, GDPR.

Oct 2025 - Oct 2025

1 month

AI Potential Analysis Workshop

Ärztekammer für Niederösterreich

1-day workshop to identify and evaluate AI projects with decision-makers and IT.
AI strategy, use case analysis.

Sep 2025 - Jan 2026

5 months

AI Automation Platform for Event Management

Hafele Catering GmbH

AI-powered automation of manual office processes in event catering.
Integration of the orgaMAX API, automated Word document generation via n8n workflow and FastAPI microservice.
Azure OpenAI for location-specific menu and allergen recognition.
Self-hosted stack with Docker.
n8n, FastAPI, Python / Azure OpenAI / Docker, PostgreSQL, Caddy / python-docx, pdfplumber / Claude Code, OpenCode.

Sep 2025 - Sep 2025

1 month

AI Platform and Automation

IdeeNovation GmbH

Setup of document management (Paperless-ngx), AI chatbot for querying internal documents, automated lead detection via email.
GDPR-compliant hosting.
Paperless-ngx / RAG, LLM / Hetzner Cloud / Claude Code, OpenCode.

Sep 2025 - Sep 2025

1 month

Linz, Austria

AI Intensive Workshop

NBD Valuetainment GmbH

AI workshop for Fischer Brot in Linz.
Development of realistic use cases, business cases, and practical evaluation of AI solutions.
AI strategy, use case development.

Jul 2025 - Jul 2025

1 month

AI Workshop and AI Implementation

Ringer GmbH

Workshop for use case analysis.
Implementation of use cases with Microsoft Agents, AI Foundry, and Power Automate.
Automation of prospect and debtor reconciliation with Creditreform/KSV.
Email agent for office and back office.
Automated inventory management and visualization in Power BI.
Implementation of agents and integration into Microsoft Copilot.
Microsoft Copilot, AI Foundry, Microsoft Copilot Studio, Dynamics 365, Power BI, Python/Langchain / Claude Code, OpenCode.

Jun 2025 - Jun 2025

1 month

Salzburg, Austria

AI Workshop

Messezentrum Salzburg

AI workshop for about 70 employees.
Introduction to AI, EU AI Act, GDPR, Microsoft Copilot, ChatGPT.
AI basics, Microsoft Copilot, ChatGPT.

Jun 2025 - Jan 2026

8 months

AI Lead Machine – Multi-Tenant Platform for AI Lead Generation

danielschlager.ai

Design and implementation of a productized AI platform for automated lead generation and multi-channel outreach (LinkedIn, Facebook, Instagram).
Deep integration of the Meta Graph API (v22.0): content publishing on Facebook pages and Instagram business accounts, retrieving insights and metrics, messaging and comment replies.
Retrieval of Meta Lead Ads and campaign management via the Marketing API.
OAuth flow with multi-page selection, long-lived token refresh (60 days), and rate limit/error handling.
FastAPI microservices, n8n as orchestrator, React/Tailwind dashboard as operator frontend, and NocoDB for self-service configuration.
LLM-supported reply classification and text generation, human-in-the-loop approval (Telegram), anti-detection guard with daily budgets and rate limiting, multi-tenant via VM isolation.
React, Tailwind CSS / FastAPI, Python 3.12 / Meta Graph API (Facebook/Instagram) / Meta Marketing & Lead Ads API / Unipile (LinkedIn) / n8n, NocoDB, PostgreSQL, Redis / LLM / Docker, Caddy / Claude Code, OpenCode.

Apr 2025 - May 2026

1 year 2 months

Salzburg, Austria

Hybrid

AI Workshops

Pro Juventute

Ongoing AI workshops for employees.
Introduction to AI, EU AI Act, GDPR, Microsoft Copilot, ChatGPT.
AI basics, Microsoft Copilot, ChatGPT.

Jan 2025 - Sep 2025

9 months

Full-Stack Web Development

consourcive GmbH

Magento shop backend development.
Extending and customizing existing shop features.
PHP, Magento.

Dec 2024 - Jun 2025

7 months

Shop Development

NDA

Magento shop API development.
Refactoring the existing solution.
PHP / Magento.

Oct 2024 - Present

1 year 9 months

App Development

WisdomKeeper

Secure corporate knowledge, preserve expertise.
WisdomKeeper makes the knowledge of your leaders and experts available at all times – for sustainable growth and efficient knowledge transfer.
Next.js, NextAuth, TanStack / Python/Tensorflow/Keras / Langchain/Mistral / Claude Code, OpenCode.

Oct 2024 - Oct 2024

1 month

Web Development and CRM Integration

AOPA Austria

WordPress website with member area, CRM integration, METAR data integration, digital crew card, and plugin development.
WordPress, Elementor Pro, PHP / CRM API, METAR API.

Sep 2024 - Feb 2025

6 months

AI Consulting and Integration

R+S Group

Automatic scheduling based on an agent-based AI solution, driven by customer support data.
Process optimization across multiple departments.
Python, LLM, RAG / Microsoft 365, Copilot, Power Automate / Claude Code, OpenCode.

Jun 2024 - Aug 2024

3 months

Enterprise Software

Spedition Durmaz

Upgrade .NET accounting software, invoicing system, cash register, Carnet-TIR, CMR software.
C#, .NET, EF Core / Windows Forms / MySQL / Claude Code, OpenCode.

May 2024 - Jun 2024

2 months

AI Consulting and Software Development

NDA

Scraping tool for ICE rates, news scraper, and sentiment analysis.
Model generation for automated rate forecasts using time series forecasting and LLMs.
Python, web scraping / Tensorflow/Keras/ARIMA / LLMs, sentiment analysis.

May 2024 - May 2024

1 month

AI Consulting

Business Consulting

Business consulting and process optimization.
Microsoft 365, Copilot / Excel.

Mar 2024 - Aug 2024

6 months

AI Consulting and Software Development

NDA

AI consultant in the electrical engineering industry.
Process optimization.
Microsoft 365, Copilot / Excel / SharePoint / Microsoft Azure.

Jan 2024 - Feb 2025

1 year 2 months

AI Voicebot

Business Consultant

Development of an AI-Voicebot for lead generation through free tips and newsletter sign-up.
Python, LLM, RAG / VAPI, Twilio / Claude Code, OpenCode.

May 2023 - Jan 2025

1 year 9 months

Remote

Software Development (Remote)

STI-Consulting GmbH

Magnolia CMS and Full-Stack developer (remote).
Development and implementation of CMS-based web portals.
Java, Magnolia CMS.

May 2023 - Dec 2024

1 year 8 months

Co-Founder, Interim CTO

Farmlifes GmbH

Cloud solutions, AI, ML integrations, and blockchain technology.
Laravel, PHP / Python, Keras, TensorFlow / Polygon, EVM / Cloud, Docker, REST API.

Sep 2022 - Dec 2024

2 years 4 months

Co-Founder, CTO, Full-Stack App Developer

Delicito GmbH

Restaurant app for self-service and ordering, integrated with over 10 POS systems.
Full-stack development: Node.js backend, React frontend, and Flutter/Dart app.
React.js, Material UI / Node.js, Next.js / Flutter, Dart / Google Firebase, Stripe.

Aug 2022 - Mar 2023

8 months

Full-Stack Developer

IoT Tech Start-Up

React frontend development.
React.js, Material UI / Node.js, Electron / JavaScript, HTML(5), CSS(3) / Python / AWS, Stripe.

Apr 2022 - Dec 2024

2 years 9 months

Full-Stack Developer

Public Sector

CMS development and implementation of public portals and websites.
Vue.js, Angular / OpenAPI/Swagger / JavaScript, TypeScript, HTML(5), CSS(3) / Java, Spring Boot / Magnolia CMS.

Aug 2021 - Feb 2022

7 months

Full-Stack Software Developer

sproof GmbH

Full-time employee responsible for planning and developing new features.
Sprint and team planning.
Node.js / React.js / Material UI.

Jun 2021 - Present

5 years 1 month

Founder, Full-Stack Developer

Agrawiso

Agricultural software for planning, sales, and distribution.
Developed in close collaboration with customers.
Offered as a SaaS.
Features: cloud solution, multi-tenancy, production planning, order picking, invoicing, seed planning, and AI assistant for predictions and chat.
Node.js, Express.js, Google Firebase, Stripe / Python/TensorFlow/Keras/ARIMA / Langchain, OpenAI / React.js, Material UI, TanStack / OpenAPI / JavaScript, HTML(5), CSS(3) / DevOps (Linux, Docker).

Jan 2021 - Dec 2021

1 year

Full-Stack Software Developer

BookingPhysio.com

Booking platform for physiotherapists.
WordPress, WooCommerce / PHP / JavaScript, HTML(5), CSS(3).

Jan 2018 - Present

8 years 6 months

WordPress Theme & Plugin Developer

Advertising Agencies

Implementation of various WordPress projects in collaboration with advertising agencies.
Theme and plugin development.
WordPress, WooCommerce / PHP / React.js / JavaScript, HTML(5), CSS(3).

Jan 2017 - Dec 2017

1 year

Full-Stack Software Developer

WordPress Video on Demand Platform

Video streaming site with member area and credit purchases via Stripe.
WordPress, WooCommerce, Vimeo API / PHP / JavaScript, HTML(5), CSS(3).

Jan 2016 - Dec 2017

2 years

Web-based Invoicing

Agriculture

Java, Spring Boot / MariaDB / Angular.js / JavaScript, TypeScript, HTML, CSS.

Jan 2015 - Jun 2015

6 months

Web-based Order and Production Planning

Agriculture

Python, Django / MariaDB / JavaScript, HTML, CSS.

Jan 2014 - Dec 2021

8 years

Salzburg, Austria

Full-Stack Software Developer

University of Salzburg

Full-time employee on the digital humanities platform.
Designing and implementing the concept.
Microservice architecture with Spring Boot, Eureka, and ZUUL Proxy.
Frontend development with Angular.
Machine learning-based POS tagging.
XML TEI to RDF converter and visualization of data and texts.
Java / Java, Spring Boot / Angular / JavaScript/TypeScript / Node.js / GraphDB, SPARQL, XML, XSLT / Python.

Jan 2014 - Dec 2015

2 years

Full-Stack Software Developer

IBeeS Business Solutions GmbH

Part-time employee for custom online shop development.
Java / Spring Boot / Angular.js.

Jan 2012 - Dec 2014

3 years

Full-Stack Software Developer

Time Tracking Software

ASP.NET, C# / Sybase DB / JavaScript, HTML, CSS.

Jan 2011 - Dec 2012

2 years

Enterprise Software

Logistics Company

Accounting software, invoicing program, cash register, Carnet-TIR, CMR software.
C#, Windows Forms / MySQL.

Jan 2011 - Dec 2011

1 year

Customer Contact Management Software

Insurance Broker

C#, ASP.NET / MS-SQL.

Jan 2006 - Dec 2011

6 years

Full-Stack Software Developer

cTrixs International GmbH

Developed building management software, VoIP integrations, building automation, EIB, bus systems, smart building, IoT, Cisco CallManager, Alcatel IP Phones.
Java / PHP / MySQL / Cisco VoIP / EIB/KNX / Adobe Flash and ActionScript.

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Advertising, Education, Agriculture, Real Estate, and Telecommunication.

Information Technology

Advertising

Education

Agriculture

Real Estate

Telecommunication

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Research and Development, Accounting, Marketing, and Logistics.

Information Technology

Product Development

Research and Development

Accounting

Marketing

Logistics

Summary

Software and AI engineer with an entrepreneurial spirit and many years of experience in software solutions that combine classic application development and modern AI. My background spans full-stack development, distributed systems, and integration into existing system landscapes – including connecting ERP, CRM, and DMS systems. I work cross-platform with technologies such as Python, TypeScript, Java, and C#/.NET (Avalonia, WinForms, ASP.NET). My recent projects focus on agent solutions and their orchestration: evaluating and combining open-source frameworks with commercial LLMs (especially Claude/Anthropic) and designing provider-agnostic, auditable architectures with agent runtimes, knowledge graphs, and RAG pipelines – emphasizing data sovereignty and tool independence. A key area is user-centered frontends for AI assistants: modular React/TypeScript components that seamlessly integrate LLMs into the user experience – from the MVP UX concept to a high-performance web app with a Java/Spring Boot backend, developed in a consistent vibe-coding workflow with Claude Code. I deploy these architectures in production to automate business processes and make knowledge accessible – technology-agnostic, using cloud (Azure, AWS, Scaleway, Hetzner) or Microsoft Copilot and AI Foundry as needed. I also have many years of experience as a speaker and workshop leader (e.g., Austrian Standards) on custom GPTs and AI agents in business processes.

Skills

React, Typescript, Tailwind Css, Next.Js, Shadcn/Ui
Vibe-Coding / Ai-Assisted Coding (Claude Code, Opencode)
Ai Assistants, Llm Integration Into Ux, Rag
Frontend Architecture, Ux & Modular Components
Java, Spring Boot, Clojure
Python, Fastapi, Langchain/Langgraph
Mcp, Context & Prompt Engineering, Evals
Cloud & Devops: Azure, Aws, Scaleway, Hetzner, Docker, Ci/Cd
Claude Code, Vscode, Intellij, Git, Jira, Scrum
Industry • Services • Agriculture • Research & Higher Education • Public Sector • Retail & Hospitality • Ad Agencies • Healthcare • Energy & Environment

Languages

German

Native

English

Advanced

Education

Oct 2013 - Jun 2017

University of Salzburg

Applied Computer Science · Salzburg, Austria

Oct 2000 - Jun 2004

M. Kaindl Wood Industry

IT Technician

Certifications & licenses

Agile With Atlassian Jira

Coursera

Practical Introduction to Deep Learning for Computer Vision

openHPI - Hasso Plattner Institute

Statistics

Experience

Total positions 51

Experience in Information Technology 16.5 y

Avg length 1 y 2 m

Longest experience 8 y 5 m

Global Experience

Countries worked in 1 (Austria)

Primary country Austria

Expertise

Recent roles AI Automation in E-Commerce, AI Strategy & Use Case Development, AI Workshop for Real Estate & Event Agencies

Main industries Information Technology, Advertising, Education

Main business areas Information Technology, Product Development, Research and Development

Qualifications

Certifications earned 2

Profile

Created

June 2026

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Frequently asked questions

Have questions? Find more information here.

Where is Daniel based?

Daniel is based in Salzburg, Austria.

What languages does Daniel speak?

Daniel speaks the following languages: German (Native), English (Advanced).

How many years of experience does Daniel have?

Daniel has at least 20 years of experience. During this time, Daniel has worked in at least 42 different roles and for 44 different companies. The average length of individual experience is 5 months. Note that Daniel may not have shared all experience and actually has more experience.

What roles would Daniel be best suited for?

Based on recent experience, Daniel would be well-suited for roles such as: AI Automation in E-Commerce, AI Strategy & Use Case Development, AI Workshop for Real Estate & Event Agencies.

What is Daniel's latest experience?

Daniel's most recent position is AI Automation in E-Commerce at Looops.

What companies has Daniel worked for in recent years?

In recent years, Daniel has worked for Looops, Umwelt Service Salzburg, Ferstl Immobilien GmbH, NDA, and Kintari.

Which industries is Daniel most experienced in?

Daniel is most experienced in industries like Information Technology, Advertising, and Education. Daniel also has some experience in Agriculture, Real Estate, and Telecommunication.

Which business areas is Daniel most experienced in?

Daniel is most experienced in business areas like Information Technology, Product Development, and Research and Development. Daniel also has some experience in Accounting, Marketing, and Logistics.

Which industries has Daniel worked in recently?

Daniel has recently worked in industries like Advertising, Education, and Information Technology.

Which business areas has Daniel worked in recently?

Daniel has recently worked in business areas like Information Technology, Product Development, and Research and Development.

What is Daniel's education?

Daniel attended University of Salzburg for Applied Computer Science.

Does Daniel have any certificates?

Daniel has 2 certificates. These include: Agile With Atlassian Jira and Practical Introduction to Deep Learning for Computer Vision.

What is the availability of Daniel?

Daniel will be available part-time from July 2026.

What is the rate of Daniel?

Daniel's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.