28.10.2026 aktualisiert

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AI Engineer & Full-Stack Developer | GenAI, RAG, MCP, Agentic workfl

Berlin, Deutschland
Weltweit
Master of Science, Computer Science – Kyiv Polytechnic Institute
Berlin, Deutschland
Weltweit
Master of Science, Computer Science – Kyiv Polytechnic Institute

Profilanlagen

Viktor_CV.pdf

Über mich

19+ years building software, 4+ years shipping production GenAI. For the past 4 years, I've been building production GenAI systems for clients across hospitality, insurance, healthcare, and HR: text & voice AI agents, RAG pipelines, MCP servers, and LLM evaluation frameworks.

Skills

AI AgentsRAGServerlessJavaScriptAgile MethodologieKünstliche IntelligenzAmazon Web ServicesMicrosoft AzureCloud ComputingContinuous IntegrationDevOpsPythonPostgreSQLMachine LearningNatural Language ProcessingNode.jsScrumRuby On RailsRedisTypeScriptGoogle CloudReact.jsDeep LearningGenerative AIKotlinContainerisierungKubernetesFull Stack EntwicklungGraphQLReact NativeRestful ApisTerraformDockerMicroservices
Generative AI & LLM Engineering
4 years shipping production GenAI systems. RAG pipelines, MCP servers, LLM evaluation frameworks, agentic workflows. Hands-on with OpenAI, Azure OpenAI, AWS Bedrock, Google Vertex AI, Anthropic. LangChain, LangSmith, Langfuse, Vercel AI SDK, Mastra, OpenRouter.

AI Voice & Multi-Modal Agents
Text and voice AI agents for hospitality, healthcare, insurance, HR. OpenAI Realtime API, AWS Nova Sonic 2, ElevenLabs, FreeSWITCH/VoIP. Built production voice phone receptionist and hotel AI concierge.

Full-Stack Development
TypeScript/JavaScript, React, Node.js, Python, Ruby on Rails. REST APIs, WebSockets, serverless architectures. 19+ years of production experience across startups and enterprise clients.

Cloud & DevOps
AWS (Fargate, Bedrock, Lambda, DynamoDB), Azure, Google Cloud. Docker, Terraform, CI/CD pipelines. pgvector, Pinecone, Supabase, PostgreSQL, Redis.

Startup CTO & Technical Leadership
Founded/co-founded 5 companies. One acquired by UFP (NASDAQ). Scaled engineering teams from 0 to 10 people. Fast MVP delivery, clean architecture, agile processes.

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2022

Sprachen

DeutschgutEnglischverhandlungssicherUkrainischMuttersprache

Projekthistorie

Freelancer/AI developer

SuitePad
AI concierge for hotels. Built RAG pipelines, MCP servers, personalized recommendations, and multi-vendor AI voice integrations. Text & voice chatbot grounded in hotel-specific knowledge. Stack: Vercel AI SDK, RAG, LLM, MCP, evals, LangChain, LangSmith, OpenAI Realtime API, AWS Nova Sonic 2, Python, Ruby on Rails, AWS Bedrock, Azure OpenAI, Google Vertex AI, pgvector, TypeScript, Node.js, Docker, Terraform.

AI Engineer & Full-Stack Developer

Alteos
AI solutions for the insurance industry. AI strategy consulting, enterprise AI workflows, and agentic workflows. Stack: Vercel AI SDK, RAG, LLM, MCP, evals, LangChain, Mastra, Langfuse.

AI Engineer & Full-Stack Developer

DocDolittle
AI voice phone receptionist for German doctors' practices. Built multi-modal voice/text agents, AI-generated reply suggestions, and smart categorization of incoming calls. Stack: RAG, LLM, MCP, LangChain, VoIP, FreeSWITCH, ElevenLabs, Supabase, Node.js, React, TypeScript, AWS, Pinecone.

AI Engineer & Full-Stack Developer

Dolittle AI
Multi-modal AI agents platform. Built RAG-enabled AI platform features, voice/text agents, custom evals, and agentic workflows. Stack: LLM, RAG, LangChain, Python, Node.js, Supabase, OpenAI Realtime API, AWS Nova Sonic 2, TypeScript, React, AWS.

AI Engineer & Full-Stack Developer

Empion
Enterprise AI content categorization and AI-powered web research. Built multi-LLM evaluation framework, iterated LLM error rate based on annotated data, and implemented AI-powered web research. Stack: LLM, evals, OpenRouter, Python, Node.js, TypeScript, React.

Author & Trainer

Gen AI Workshop for Developers
Authored and delivered Gen AI workshops for developers. Trained 80+ developers across 4 workshops on AI-assisted coding with agents and IDEs. Topics: Claude Code, Codex CLI, Cursor Agent, JetBrains AI workflows, TDD/spec-driven development, advanced prompting, context engineering, custom AI tools, best practices, and anti-patterns.

Hands-on CTO & co-founder

Ukraine Refugee Support
Telegram AI chatbot helping Ukrainian refugees navigate German bureaucracy. Built RAG-enabled bureaucracy assistant, image recognition, and web-search grounding. Stack: RAG, LLM, React, TypeScript, Node.js, DynamoDB, Terraform, serverless, AWS, OpenAI platform, JavaScript.

Hands-on CTO & co-founder

TimberBase
Hands-on CTO & co-founder. Built a global B2B marketplace for digital timber trade from 0 to 1. Designed and scaled the architecture, established technical standards, and delivered reliable features for hypothesis validation. Acquired by UFP (NASDAQ). Stack: Python, Django, TypeScript, React, Redux, PostgreSQL, AWS, Git, Kotlin, CI/CD, Terraform.

CTO & co-founder

Uberblick
Built an internal communication app for hotels from scratch, growing the company to 15 people in 2.5 years. Developed MVP for Web, iOS, and Android platforms using JS, Redux, React-Native, Expo, AWS, Kotlin, JOOQ, WebSockets, Git, Postgres, and Firebase.

Software Architect

Bonial International Group
Led a team of iOS, Android, and React Native developers as part of the company's startup incubator initiative. Designed software architecture and fostered clean coding practices using Xcode, Swift, Git, React-Native, VIPER, Redux, AWS, Couchbase, TDD, DI, and CI.

CTO & Founder

asdCode Mobile Development Agency
Managed a team of 4 developers, handled customer communication, project management, and technical implementation using Xcode, Objective-C, Cocoa Touch, Foundation, UIKit, MapKit, and Git.

CTO & co-founder

iStat24 Call-Tracking
Managed a team of 4 developers, gave presentations at industry conferences, and implemented lean startup principles. Used AWS, Perl, Ruby (RoR), MySQL/PostgreSQL, Redis, JIRA, and Scrum.

CTO & co-founder

Vint.com.ua e-commerce store
Created an e-commerce shop from scratch, developing website, back-office, internal ERP, and managing a team of up to 10 employees. Tech stack included Xcode, Objective-C, FreeBSD, Apache, Perl, MySQL, Html, and CSS.

Full-stack Developer

LND Web Agency
Developed websites, designed database structures, and worked closely with the sales department. Tech stack included Perl, MySQL, Apache, JS, Html, and Unix.

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