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01 Backend Developer & Freelancer

Backend
Dev

Backend developer & freelancer specialising in Go, Java, Groovy, Perl, data extraction, Telegram bots, and AI integration.

Currently building

chorus

6
agents
30
routes
1
install
workflows
Available for work
02

Featured Projects

Open-source tools & client solutions.

chorus
Claude Code

chorus

Open-source cross-agent plugin mesh connecting Claude Code, OpenCode, Gemini CLI, Codex, Cursor, and Kilo into a full 6×6 delegation network. One install gives any agent the ability to delegate tasks to the other five — parallel reviews, council mode, root-cause debugging.

Claude Code OpenCode Gemini CLI Codex Cursor
Rule-Based Telegram ChatBot
Go

Rule-Based Telegram ChatBot

Professional-grade custom Telegram bot powered by JavaScript/Go/Java for autoresponder efficiency and business automation. Supports lead generation, crypto bots, appointment booking, and e-commerce workflows.

Go JavaScript Java Telegram API
ShoPogoda
Go

ShoPogoda

Production-ready Telegram weather bot with real-time forecasts, air quality, smart locations, and multi-language support (UA/EN/DE/FR/ES). Enterprise features: custom alerts, Slack/Teams integration, RBAC, Prometheus/Grafana monitoring.

Go Telegram API PostgreSQL Redis Docker
KeepinCRM Automation
Go

KeepinCRM Automation

Go daemon fully automating a Ukrainian e-commerce CRM workflow: moves deals through the sales funnel based on Nova Poshta delivery statuses, generates fiscal receipts via Checkbox (ПРРО), and sends automated SMS via TurboSMS.

Go SQLite REST API Nova Poshta Checkbox
DataScrapexter
Go

DataScrapexter

Professional Go-powered web scraping framework with anti-detection, captcha-solving, proxy rotation, and distributed processing. Outputs structured data in JSON, CSV, or database formats via customizable YAML/JSON configurations.

Go YAML JSON Proxy Rotation Anti-Detection
WebPageInvestigator
Go

WebPageInvestigator

All-in-one web page analysis tool for automated data extraction, transformation, comparison, and SEO analysis. Handles dynamic content with headless browsers and outputs to JSON, CSV, or custom formats.

Go Headless Browser CSS Selectors JSON CSV
03

Selected Work

Enterprise contracts & long-term engagements.

04

Latest Writing

Go, AI tooling, freelance engineering.

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chorus: a cross-agent plugin mesh for AI coding CLIs Latest Post
release-notes April 17, 2026

chorus: a cross-agent plugin mesh for AI coding CLIs

Most AI coding tools are designed like islands.

AIchorusclaude-codeopencode
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© 2026 Valentyn Solomko Backend · AI · Automation GitHub ↗