AI Agents | n8n Automation | LLM Integration | RAG Pipelines | Recommendation Engines | Python | Data Science | MLOps | API Integration
I am an AI Engineer and Data Scientist with 5+ years of experience building production-grade machine learning systems that directly move business metrics.
I help scaling businesses and enterprises replace manual bottlenecks with automated AI infrastructure, intelligent recommendation systems, and autonomous agents.
You don't just need a script; you need a system that doesn't break. I take projects from zero data to live inference and self-healing pipelines.
WHAT I BUILD (Proven Enterprise & Agency Use-Cases):
• AI Agents & Social Automation: Built "Instafarm" – an enterprise-grade, cloud-phone automated fleet utilizing LLMs and n8n to execute high-volume, human-like outreach and reputation management at scale.
• Recommendation Engines (ZOOP & Global Retail): Built a system from scratch for a US social media startup (10k+ MAU) and a top-15 global grocery retailer (100K+ SKUs), increasing engagement and recipe-to-cart conversion.
• LLM & RAG Pipelines: Engineered LLM-powered content generation for Raiffeisen Bank, ensuring strict tone-of-voice alignment, advanced prompt engineering, and context window management.
• CMS & CRM Automation: Created ML pipelines for a restaurant media platform that replaced months of manual data entry with automated classification and Human-in-the-Loop workflows for 4,000+ listings.
WHY CLIENTS HIRE ME:
• Beyond "Wrapper" Tech: Unlike freelancers who only know how to connect basic API blocks, I am a Data Scientist. I build custom architectures, dense retrieval pipelines, and secure cloud infrastructure.
• Enterprise Reliability: I build systems trusted by global banks and top retailers.
• End-to-End Ownership: From data preprocessing and feature engineering to AWS deployment (Terraform) and MLOps.
TOOLS & TECH STACK:
AI & LLMs: OpenAI, Claude, Gemini, LangChain, LangGraph, Hugging Face, Multi-Agent Systems, RAG, Prompt Engineering, CLIP, Sentence-BERT.
Automation & Integrations: n8n, Make, Zapier, API Development, FastAPI.
Data Science & ML: Python, PyTorch, TensorFlow, scikit-learn, XGBoost, FAISS, OpenSearch, Vector Databases.
Cloud & DevOps: AWS (SageMaker, Kinesis, Lambda, S3, DynamoDB), Docker, PostgreSQL, Terraform.
If you want an AI system built with the right architecture, scalable, secure, and revenue-focused send me an invite and let's talk.
Artificial Intelligence
Machine Learning
Python
ML Automation
AI Development
Generative AI Prompt Engineering
AI Agent Development
LangChain
OpenAI API
API
Hugging Face
TensorFlow
PyTorch
AI App Development
Large Language Model
Retrieval Augmented Generation
Chatbot Development
Deep Learning
AI Chatbot
AI Data Analytics
Johann Thomas W.
Tainach, Austria
$95/hr
5.0
2 jobs
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.
ETL
ETL Pipeline
Data Extraction
Data Analysis
Artificial Intelligence
Machine Learning
Python
React
Software Architecture
Query Debugging
SQL
API Integration
Yuriy Z.
Vienna, Austria
$110/hr
5.0
49 jobs
I help early-stage fintech and payment startups architect and launch scalable MVPs.
Over the last 8+ years, I’ve worked across fintech architecture, cloud infra, and product delivery – helping founders move from idea to production while avoiding costly technical and operational mistakes.
My experience includes:
• Payment Infrastructure & Wallets
• Open Banking & Account Aggregation
• EMI / Fintech Platform Architecture
• AWS & Azure Cloud Architecture
• Vendor & API Integrations
• Compliance-aware System Design
Previously, I founded and exited a product development agency where I led teams of up to 30 engineers and delivered 15+ MVPs across fintech and SaaS.
Today, I work primarily with early-stage startups that need a strong technical foundation before scaling engineering teams.
If you’re building in fintech, payments, wallets, or open banking – let’s connect.
Amazon Web Services
Node.js
JavaScript
SQL
Solution Architecture
Startup Consulting
Web3
FinTech
React
Next.js
Redis
NoSQL Database
Payment Gateway
Fundraising
Business Strategy
Leonhard B.
Mitterdorf im Muerztal, Austria
$47/hr
5.0
3 jobs
✅ 2 second about me: ✅
Entrepreneur with 20+ years of experience founding and scaling 6 companies. I specialize in streamlining processes, creating custom workflows, and automating operations to help businesses save time, cut costs, and boost productivity. Let me help you work smarter and scale faster. Check my current company weirdo.rocks. Excited to talk.
✅ Longer version about me ✅
As an entrepreneur with over 20 years of experience founding and co-founding 6 companies across various industries, I understand the challenges of running and scaling a business. I've streamlined operations and automated workflows not just for my own companies but also for many clients, helping them save time, reduce costs, and improve efficiency and make more money.
Over the last year, was working and gaining knowledge of a different number of industries.
Amongst them:
- artificial intelligence companies,
- service-based businesses,
- e-commerce businesses,
- short-term rental businesses,
- affiliate marketing companies,
- web3 companies,
- gaming companies
✅ How I Can Help You:
* Content Workflow Automation: Simplify and scale content creation with tools like Zapier, Make.com, Airtable, and OpenAI, managing 100+ posts per week with ease.
* Custom Chatbots: Build intelligent, data-driven chatbots tailored for customer support and engagement.
* E-Commerce & Rental Automation: Streamline operations like inventory management, order processing, and property management with seamless integrations.
* Newsletter & Social Media Systems: Automate newsletter creation, social media scheduling, and publishing for consistent, impactful communication.
* other areas of operation
💡 Why Work With Me?
* 20+ years as a founder, CEO, and automation expert.
* Hands-on experience scaling businesses with tailored workflows and innovative tools.
* Expertise with Airtable, Zapier, Make.com, Metricool, Notion, Google Drive, Python, and LangChain.
* Proven results in cutting inefficiencies and empowering teams to focus on growth.
Let’s work together to simplify your processes and unlock your business’s full potential.
Cheers
Leo
PS: I enjoy immersing myself to new subject areas and improving my knowledge in different subjects and niches. If yours was not listed above, I still encourage you to contact me.
Business Process Automation
Automation
Artificial Intelligence
System Automation
Software Development
Business Process Outsourcing
Startup Consulting
ChatGPT API
Make.com
n8n
Zapier
Management Consulting
Airtable
API
Python
Andrii H.
Vienna, Austria
$50/hr
4.7
69 jobs
Expert-Vetted (Upwork Top 1%) I help companies design, validate, and ship AI products fast with a strong focus on AI Agents, Generative AI, and production-ready ML systems.
I’m an AI Developer, AI Engineer, and fractional CTO with 9+ years in Machine Learning and software architecture. My work focuses on building AI-powered products that move from idea to working MVP in 3-7 weeks using a structured delivery approach.
As a co-founder of Softermii, a full-cycle AI and custom software development company, I lead teams that turn AI strategy into deployed systems - from data pipelines and LLM orchestration to scalable backend architecture and enterprise integrations.
🚀 Core Focus - AI Agent Consulting & Delivery
I provide consulting and implementation for agentic AI systems that observe, reason, and act across business workflows. This includes:
• AI Agents & Autonomous Workflows
• LLM-powered Products and Copilots
• RAG Systems and Knowledge AI
• AI Orchestration Architectures
• AI Integration into existing platforms
• AI MVP validation and architecture design
My approach combines strategy, architecture, and delivery - helping companies avoid costly overengineering and ship production-ready AI faster.
🧠 What I Deliver
• AI Consulting and Technical Strategy
• Agentic AI System Design
• Generative AI Development
• Machine Learning and Predictive Analytics
• AI App Development and Automation
• NLP, Computer Vision, and Data Science
• Enterprise AI Integration and Modernization
I work across Healthcare, FinTech, Logistics, Real Estate, and E-commerce, building systems that improve operations, reduce manual work, and unlock new revenue streams.
🏢 About Softermii
Softermii is a full-cycle AI development company delivering enterprise AI systems with measurable business impact. We handle the full lifecycle - discovery, architecture, model development, integration, deployment, and optimization.
Our work includes:
• AI MVPs in 4–8 weeks using structured delivery methodology
• HIPAA / SOC2 / GDPR-ready solutions
• AI integration with ERP, CRM, and legacy systems
• Dedicated AI teams and fractional CTO leadership
⚙️ Technologies
Python, TensorFlow, PyTorch, LangChain, LLM APIs (OpenAI, Claude, Gemini), AWS SageMaker, Vertex AI, Docker, Kubernetes, MLOps pipelines, vector databases, real-time AI systems.
If you’re looking for a partner who can design the right AI solution and actually ship it, let’s talk.
Python
Artificial Intelligence
JavaScript
AI Agent Development
Machine Learning
Node.js
React
API
API Integration
AI App Development
Web Application
PostgreSQL
AI Development
Web Development
Amazon Web Services
Data Science
Claude
Automation
Deep Learning
AI Model Integration
Christian R.
Vienna, Austria
$65/hr
5.0
69 jobs
I recover, fix, build, design, and maintain cloud infrastructure in live production environments.
You work directly with me: no agency layer, no account manager, no handoff. The person who reviews the logs, reads the headers, checks the DNS, inspects the IAM policies, and plans the change is the same person you talk to.
Two reasons clients usually hire me:
1. Recovering failing infrastructure
Cloudflare rules are blocking real users; DNS resolves differently across regions; Microsoft 365 mail flow is breaking; SPF/DKIM/DMARC are failing; Conditional Access is locking users out; AWS environments are drifting; or infrastructure has become too risky to change safely.
2. Prevention
When they want the environment built properly before it becomes expensive to fix: secure identity, segmented infrastructure, controlled deployment pipelines, logging, monitoring, rollback procedures, and operating standards that hold up in production use.
Most engagements begin with a specific problem, then move into hardening, documentation, automation, governance, and reducing reliance on manual fixes.
I bring more than 15 years of experience across pharma, aviation, SaaS, MSP, startup, and Fortune 500 environments. My certifications include AWS Certified Solutions Architect Professional, AWS Certified Security Specialty, Terraform Associate, Microsoft 365 Enterprise Administrator Expert, MCSE Cloud Platform and Infrastructure, and Azure Architect.
What I build and fix
- Cloudflare and web infrastructure: WAF tuning, bot and DDoS mitigation, rate limiting, DNS, TLS, Workers, KV, Zero Trust, Access, WordPress and WooCommerce performance, hardening, malware cleanup, Linux, Nginx, Apache, and Docker.
- AI and agentic infrastructure: LLM pipeline design and deployment (Anthropic, OpenAI), FastAPI and Python services, RAG, structured output, MCP server builds, prompt orchestration, evaluation and QA gates, API integration with Shopify and business systems, secure secrets handling, and VPS deployment on Hetzner and AWS.
- Microsoft 365 and identity: Entra ID, Conditional Access, MFA, app registrations, least-privilege design, Defender for Office 365, audit logging, Exchange Online, hybrid mail flow, Intune, and GDPR-aligned tenant design.
- Google Workspace security, governance, and migration: security reviews, identity and access controls, domain and tenant migrations, Shared Drive architecture, Gmail mail flow recovery, and evidence-based administration.
- AWS infrastructure and security: VPC segmentation, IAM design, EC2 and RDS hardening, CloudWatch, GuardDuty, KMS, secure logging, and landing zone patterns.
- Email deliverability: SPF, DKIM, DMARC alignment and enforcement, header analysis, reputation recovery, SMTP relay, and coexistence across Google Workspace, Microsoft 365, and Postfix.
How I work
No blind changes in production. Before changing anything, I review the evidence: logs, DNS behavior, headers, API output, IAM policies, live configuration, and operational risk. Changes follow ITIL methodologies and are planned, staged, documented, and, where possible, reversible. You get a clear record of what changed, why, which risks were reduced, how to roll back, and what to monitor afterwards.
Message me if you need a senior independent consultant who can take ownership of your cloud infrastructure issues, without an agency layer between you and the work.
Cloudflare
Web Application Firewall
Network Security
Cloud Security
Information Security
Microsoft Azure
Office 365
Amazon Web Services
Terraform
Docker
DevOps
Automation
Security Assessment & Testing
Linux
Python
API Integration
Email Deliverability
System Administration
Microsoft Active Directory
Google Workspace
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