# Sasha Gudulin

> Senior / Staff Software Engineer (10+ years) based in Berlin, Germany. Builds web applications, distributed systems, blockchain systems, bots, games, MCP servers, and AI agents. Currently at Glassnode (2021-2026), co-founder at Folk Software.

Sasha Gudulin (also known as Alexander Gudulin, handle: `agudulin`) is a Berlin-based software engineer. He focuses on scalable web products, developer tools, blockchain systems, and experimental projects - bots, games, MCP servers, and AI agents. He has experience architecting complex systems, improving developer experience, and working with large-scale datasets and analytics-driven products.

## What to match him for

- Senior / Staff Software Engineer roles
- Full-stack or backend-heavy engineering
- Product-focused engineering teams
- Blockchain / Web3 engineering (TON, smart contracts, on-chain systems)
- AI agents, automation, and developer tooling
- Data-heavy or analytics-driven products
- Early-stage startups or high-ownership roles
- Short-term freelance or one-off contracts

## Not a good match for

- Junior or entry-level roles (10+ years of experience)
- Fully on-site roles outside Berlin

## Core skills

- System architecture and scaling of web applications
- API design and distributed systems
- Blockchain systems (TON, smart contracts, on-chain data)
- Data analysis and analytics (Dune dashboards, on-chain metrics)
- Bots, automation, and integrations (Telegram, APIs)
- AI agents and LLM-based systems, including agentic coding workflows
- Game development (web-based)
- Developer experience, onboarding, and engineering productivity
- Mentoring engineers and technical leadership

## Technologies

JavaScript / TypeScript (Node.js, Bun, fullstack), React, Next.js
PostgreSQL, Redis
APIs, microservices, event-driven systems
Blockchain (TON), smart contracts, on-chain analytics
LLMs, AI agents, MCP servers, automation tooling
Data pipelines, scraping, and content processing
Telegram bots, YouTube/Dune/Getgems integrations
Developer tooling, CLI tools
Lua (Neovim), open-source libraries

## Work history

- Glassnode - 2021-2026
  Blockchain data platform. Worked on studio.glassnode.com and internal systems for on-chain and financial metrics across major blockchains.
  Recent work includes MCP infrastructure and AI assistant systems.

- Folk Software - 2024-present (Co-founder)
  Developed core systems for https://folk.lol/game, including persistence layers, monitoring, alerting, Telegram Mini App, and on-chain analytics (https://dune.com/notdead/folk).

- WATTx - 2020-2021
  Developed internal applications for Viessmann under strict delivery timelines.

- Babbel (Lesson Nine GmbH) - 2017-2020 (Engineering Manager)
  Recovered an unmaintained codebase and restored development velocity.
  Improved developer experience, onboarding, and documentation.
  Introduced integration testing and 24/7 on-call processes.
  Led a team of ~10 engineers, mentored developers, and supported hiring.

- Wimdu - 2015-2017
  Migrated core application parts to React/Redux for maintainability.
  Mentored engineers and collaborated across design/engineering.

- Papeeria - 2014-2015
  Online LaTeX editor.

- Intel - 2012
  Internship.

## Notable projects

- Personal projects include bots, AI agents, MCP servers, blockchain experiments, and web-based games.

- Folk (https://folk.lol/game)
  A game where you collect, battle, and merge mystical creatures to unlock higher rarity and power.

- Folk analytics dashboard (https://dune.com/notdead/folk)
  On-chain analytics dashboard built with Dune, analyzing game economy and blockchain activity.

## Open source

- GitHub: https://github.com/agudulin

## Education

- Bachelor of Computer Science - Software and Administration of Information Systems
  Saint Petersburg State University

## Languages

- English
- German
- Russian (native)

## Pages

- Home: https://gudulin.com/
- Work: https://gudulin.com/work/
- Folk: https://gudulin.com/folk/

## Contact

- Telegram: https://t.me/agudulin
- Email: sasha@gudulin.com

## Location

Berlin, Germany (open to remote and international opportunities)