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I specialize in bridging the gap between ambitious AI concepts and production-grade software that delivers tangible business value. Coming from a senior engineering background where I shaped org-wide standards for teams of 50+, I now apply that same rigor to the world of Applied AI. My work focuses on demystifying complex models and building practical solutions - from autonomous workflows that process unstructured data to intelligent agents that can reason, plan, and execute complex tasks. If you're struggling with any of the following, we should talk: - Your LLM product feels like an unpredictable black box. - You're overwhelmed by the hype and unsure what to prioritize. - You need an outside perspective to assess your AI readiness or architecture. Tech I'm passionate about: - Core AI: AI Agent Architecture, LLM Evaluation - Operations: MLOps, LLM Observability & Cloud-Native Architecture - Frameworks: TypeScript, Node.js, LangChain.js, LangGraph.js Let's build the future of AI intentionally. Feel free to connect or reach out directly.…I specialize in bridging the gap between ambitious AI concepts and production-grade software that delivers tangible business value. Coming from a senior engineering background where I shaped org-wide standards for teams of 50+, I now apply that same rigor to the world of Applied AI. My work focuses on demystifying complex models and building practical solutions - from autonomous workflows that process unstructured data to intelligent agents that can reason, plan, and execute complex tasks. If you're struggling with any of the following, we should talk: - Your LLM product feels like an unpredictable black box. - You're overwhelmed by the hype and unsure what to prioritize. - You need an outside perspective to assess your AI readiness or architecture. Tech I'm passionate about: - Core AI: AI Agent Architecture, LLM Evaluation - Operations: MLOps, LLM Observability & Cloud-Native Architecture - Frameworks: TypeScript, Node.js, LangChain.js, LangGraph.js Let's build the future of AI intentionally. Feel free to connect or reach out directly.

Serhii Panchyshyn

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I specialize in bridging the gap between ambitious AI concepts and production-grade software that delivers tangible business value. Coming from a senior engineering background where I shaped org-wide standards for teams of 50+, I now apply that same rigor to the world of Applied AI. My work focuses on demystifying complex models and building practical solutions - from autonomous workflows that process unstructured data to intelligent agents that can reason, plan, and execute complex tasks. If you're struggling with any of the following, we should talk: - Your LLM product feels like an unpredictable black box. - You're overwhelmed by the hype and unsure what to prioritize. - You need an outside perspective to assess your AI readiness or architecture. Tech I'm passionate about: - Core AI: AI Agent Architecture, LLM Evaluation - Operations: MLOps, LLM Observability & Cloud-Native Architecture - Frameworks: TypeScript, Node.js, LangChain.js, LangGraph.js Let's build the future of AI intentionally. Feel free to connect or reach out directly.…I specialize in bridging the gap between ambitious AI concepts and production-grade software that delivers tangible business value. Coming from a senior engineering background where I shaped org-wide standards for teams of 50+, I now apply that same rigor to the world of Applied AI. My work focuses on demystifying complex models and building practical solutions - from autonomous workflows that process unstructured data to intelligent agents that can reason, plan, and execute complex tasks. If you're struggling with any of the following, we should talk: - Your LLM product feels like an unpredictable black box. - You're overwhelmed by the hype and unsure what to prioritize. - You need an outside perspective to assess your AI readiness or architecture. Tech I'm passionate about: - Core AI: AI Agent Architecture, LLM Evaluation - Operations: MLOps, LLM Observability & Cloud-Native Architecture - Frameworks: TypeScript, Node.js, LangChain.js, LangGraph.js Let's build the future of AI intentionally. Feel free to connect or reach out directly.

Available to hire

I specialize in bridging the gap between ambitious AI concepts and production-grade software that delivers tangible business value.

Coming from a senior engineering background where I shaped org-wide standards for teams of 50+, I now apply that same rigor to the world of Applied AI. My work focuses on demystifying complex models and building practical solutions - from autonomous workflows that process unstructured data to intelligent agents that can reason, plan, and execute complex tasks.

If you’re struggling with any of the following, we should talk:

Your LLM product feels like an unpredictable black box.
You’re overwhelmed by the hype and unsure what to prioritize.
You need an outside perspective to assess your AI readiness or architecture.

Tech I’m passionate about:

Core AI: AI Agent Architecture, LLM Evaluation
Operations: MLOps, LLM Observability & Cloud-Native Architecture
Frameworks: TypeScript, Node.js, LangChain.js, LangGraph.js

Let’s build the future of AI intentionally. Feel free to connect or reach out directly.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Ukrainian

Fluent

Russian

Fluent

Work Experience

Principal AI Engineer - Contract at ContactMonkey

October 1, 2025 - October 5, 2025

Played a pivotal role in launching the company’s first generative AI feature, from architectural design to production deployment. Established a robust model evaluation framework using Braintrust and TypeScript, creating the inaugural golden set to benchmark and ensure high-quality model outputs. Engineered the core prompt suite and designed the AI integration architecture for the platform, partnering with the lead engineer to ensure successful implementation.

Principal AI Engineer - Contract at Rose Rocket

November 1, 2024 - Present

Developed an OCR service that automates the upload and analysis of PDFs/images using advanced models like GPT-4, achieving 75% initial accuracy and streamlining data entry processes. Created a multi-agent system where multiple independent agents powered by LLMs collaborated to optimize and accelerate customer workflows. Each agent, with its own prompts, LLMs, tools, and code, focused on specialized tasks, significantly enhancing overall efficiency.

Senior Software Developer at Rose Rocket

February 15, 2019 - October 4, 2025

Led backend development for major integrations with third-party logistics partners, designing scalable RESTful APIs to handle thousands of daily transactions. Designed and deployed a new mission-critical microservice in Golang/Node.js, improving modularity and reducing dependencies within the core monolith. Overhauled the integration testing strategy for backend services using Cypress, boosting test coverage to 40% and preventing multiple production regressions.