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You will get Bolt AI Developer / AI Developers RAG / AI Web Developer AI SaaS Developer

Viktor A.Status: Offline
Viktor A. Viktor A.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Viktor, priced and ready to go.
Viktor A.Status: Offline
Viktor A. Viktor A.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Custom Website Programming services from Viktor, priced and ready to go.

Project details

PLEASE NOTE: Before purchasing, message me directly.

I am Viktor, an AI Developer (Top 1% on Upwork) with $70K+ earned and 100% Job Success ā€” building production-grade AI systems across LangChain, RAG, agentic AI, chatbots, and full stack AI SaaS platforms.

What you get: A working AI system ā€” deployed, documented, and production-ready.

My Process:

Discovery: Scope your AI use case and integration points.

Architecture: LangChain, RAG pipeline, or agentic AI design.

Development: AI chatbot developer, AI backend developer, or full stack AI SaaS build.

Deployment: AWS, Docker, or Bolt AI developer setup with full docs.

Why me? $70K+ as an AI developer, Python AI developer, generative AI developer, and AI LLM developer across SaaS and enterprise. I build AI tools that cut manual workflows by 80%+.

šŸš€ Let us connect!

Keywords: AI developer | AI chatbot developer | LangChain | RAG | agentic AI developer | Bolt AI developer | AI SaaS developer | full stack AI SaaS developer | generative AI developer | AI LLM developer | AI backend developer | Python AI developer | AI tool developer | AI web developer | AI bot developer | AI ML developer | Bubble developer AI
Programming Languages
PHP, JavaScript, Python
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Design

What's included $45

These options are included with the project scope.

$45
  • Delivery Time 30 days
  • Number of Revisions 0
5.0
21 reviews
100% Complete
(21)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
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CB

Chris B.
5.00
Jun 26, 2026
Title: AI Developer / AI Chatbot - Membership Platform Phase 2: AI Q&A Core & Voice-Matched RAG Again, Not a problem. On point, understands and always within timeline!

CB

Chris B.
5.00
May 26, 2026
AI Developer / AI Chatbot ā€” Membership Platform Phase 1: Foundation & Sales Page Viktor is always looking forward on the job. Sees issues and asks for direction before things get completed to make the finished work much better.

CB

Chris B.
5.00
May 9, 2026
AI-powered membership platform build ā€” Circle + Claude API + Stripe + Pinecone Viktor did a test build for an AI system we are building. Built it, stayed on focus and finished a day ahead of needed date. Hiring again shortly!

MP

Mihaela P.
5.00
Feb 20, 2026
Backend engineer is needed - Python, Postgresql, Docker, EKS Victor has a deep knowledge of backend architecture, it was a pleasure working with him

CT

Carlos T.
5.00
Jan 24, 2026
Senior Backend Engineer (Twilio + Voice AI) for Restaurant Phone Assistant
Viktor A.Status: Offline

About Viktor

Viktor A.Status: Offline
AI Developer AI Chatbot AI Chatbot AI Voice Developer AI Agent Chatbot
100% Job Success
5.0 Ā (21 reviews)
Baia Mare, RomaniaĀ - 7:41 am local time
Most voice AI demos break on the first real call. Mine don't. As an AI Developer, AI Voice Developer and AI Agent Developer, I ship systems handling 500+ concurrent calls at $0.09 each with 91% completion ā€” customers genuinely can't tell it's not a person. Hire an AI Chatbot Developer who measures outcomes: 100% answer rate, +28% bookings, 1,750+ automated tests in CI.

šŸ“© Send your project brief - as your AI Developer I reply within 2 hours with a concrete action plan.

šŸ† Why work with me?
šŸ„‡ Top-Rated AI Developer on Upwork, ROI-focused: 5+ yrs AI/ML, 10+ yrs backend & data (Deloitte, PepsiCo, Health Union).
šŸ„‡ AI Voice Developer: 500+ concurrent calls, $0.09/call, 91% completion, 1,750+ tests in CI.
šŸ„‡ AI Chatbot Developer: WhatsApp/Telegram/Web bots in EN/DE/FR/RO as a 24/7 sales engine.
šŸ„‡ AI Agent Developer: 40x faster builds, 80x lower cost, 22x ROI on fraud detection.
šŸ„‡ AI Developer & LLM Engineer for hallucination-free RAG: accuracy 66% ā†’ 91% across millions of chats.
šŸ„‡ 1st place, Enterprise RAG Challenge 3. Manning Publications Technical Reviewer (Efficient AI in Practice & Enterprise RAG). EU Commission TWG6 Appointed Expert.

ā‡ļø AI Voice & Chatbot Development
As an AI Voice Developer I build full pipelines: Deepgram/Whisper ā†’ GPT-4/Claude ā†’ ElevenLabs/Cartesia ā€” 500+ concurrent calls, sub-$0.10/call.
AI Voice Developer for dental clinics: 100% answer rate, +28% bookings vs. human baseline.
As an AI Chatbot Developer I own conversational business logic for WhatsApp, Telegram and Web ā€” multilingual (EN/DE/FR/RO), integrating ManyChat, Botpress and OpenAI API.
AI Chatbot Developer and AI Voice Developer setups act as a 24/7 sales engine: answering-machine detection over 1,000+ streams cut call spend up to 60%.

ā‡ļø AI Agent Architecture & Autonomous Workflows
As an AI Agent Developer I architect systems on LangGraph and CrewAI ā€” platform rebuild: 40x faster bot development, 80x lower cost, 10x faster deployment.
AI Agent Developer work on lead generation, deal tracking and CRM automation ā€” uplift retention designed for reactivation 8% ā†’ 15ā€“23%, bonus spend cut to 40ā€“50% (3ā€“4x ROI).
Autonomous AI Agent workflows on Slack, Shopify and enterprise backends ā€” fraud clustering targeting 50ā€“60% abuse reduction at 22x ROI.
Every AI Agent Developer engagement scales processes without adding headcount: a QA agent raised coverage 2% ā†’ 25%.

āš™ļø LLM Engineering & Advanced RAG
As a senior LLM Engineer and AI Developer, I solve the "hallucination problem" ā€” Schema-Guided Reasoning makes the LLM predictable: accuracy 66% ā†’ 91%.
Advanced LLM pipelines with Vector Databases (Pinecone, Weaviate, Milvus), terabyte-scale RAG on AWS Kendra + Bedrock: retrieval 15 min ā†’ 2ā€“3 min.
Custom fine-tuning, prompt engineering, production LLM infrastructure with source attribution, RBAC and audit trails.
Detection pipelines designed to cut alert noise 200+/day ā†’ ~25, surfacing 4x more real cases (false positives 85% ā†’ 12%).

šŸ› ļø FULL-STACK TECH STACK & DATA SCIENCE
As an AI Developer: Python, FastAPI, Docker, AWS, Asyncio.
As a Python Developer: LangChain, LlamaIndex, LangGraph, PyTorch.
As a Web Developer: frontend frameworks, responsive platforms, API integration.
As a Data Scientist: analytics pipelines, model evaluation, terabyte-scale warehouses from scratch.

ā‡ļø WHAT YOU GET WITH EVERY PROJECT
Hire me as your AI Developer: production-ready, scalable, documented code with full CI/CD on AWS. As a professional Python Developer I keep your system robust; as a data scientist, your data gets maximum analytical precision. Whether it's an AI Chatbot Developer task for support or an AI Agent Developer workflow for outbound sales, you get one senior owner end to end.

As a web developer and agentic ai developer, I pair a data analyst's precision with python full stack developer agility ā€” data-driven apps with trackable analytics.

šŸŒ EXPERTISE ACROSS THE spectrum
For Enterprises: Lead Python Developer, AI Agent Developer and machine learning consultant ā€” 15+ years in regulated finance, healthcare, telecom, iGaming, with AI agent RAG pipelines over your data.

For Startups: AI Voice Developer, AI Chatbot Developer and python full stack developer ā€” rapid deployment of AI sales agent, AI voice chatbot and AI agent SaaS products.

For Deep Tech: as a data scientist and machine learning specialist ā€” VIP detection designed to cut time-to-identify 40ā€“60%, predictive modelling as a data analyst, generative AI agent and AI voice assistant systems.

Need a Senior Python Developer, AI Developer, AI Voice Developer, AI Chatbot Developer or AI Agent Developer who understands business logic and architecture ā€” WhatsApp AI chatbot, AI phone agent, machine learning pipelines, AI agent N8N workflows, part data analyst, part machine learning engineer, part AI call agent creator? My goal is Enterprise AI with clear ROI. Let's connect.

šŸ‘‰ Send your project brief ā€” your AI Developer replies in 2 hours with a free AI visibility audit.

Upd: 24.07.2026

Steps for completing your project

After purchasing the project, send requirements so Viktor can start the project.

Delivery time starts when Viktor receives requirements from you.

Viktor works on your project following the steps below.

Revisions may occur after the delivery date.

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Review the work, release payment, and leave feedback to Viktor.