Sebastian Galcik
@sebastiangalcik
Independent web and automation contractor at RoutineBridge, building live customer portals and bank integrations for Slovak clients.
SlovakiaWhat I'm looking for
At RoutineBridge, I build customer portals, bank and REST API integrations, data pipelines, and operational tools for clients including Gaya, Hakom, and Aluprint. One customer portal is in live use, with PIN login, invoices, contracts, service requests, and online payments.
I also integrated statements and payment orders from three Slovak banks into SQL Server, with OAuth2 token refresh, camt.053 parsing, and duplicate suppression. Other work includes cash-register and courier APIs, production-prep tooling, Raspberry Pi kiosks, and operations automation.
In 2026, I created Tender vopred, an own product that uses Slovak public contract data to show suppliers contracts expiring in 1–12 months. I also developed workflows using Codex CLI and Claude Code, with independent reviews and tests; one project produced 56 Python files and 1,009 tests.
I use Python, PHP, SQL, and web technologies, as well as AI coding agents with independent checks on their output. I'm a Bachelor's student at Brno University of Technology and am available for remote, part-time contractor work, with scope by agreement.
Experience
Work history, roles, and key accomplishments
Scraper Developer
Scrapers and automation
Jan 2026 - Present (10 months)
Developed scrapers over public data, including a job-listing scraper with checks against manual reading.
Product Owner
Tender vopred
Jan 2026 - Present (10 months)
Own product using open data from the Slovak Central Register of Contracts to show suppliers public contracts expiring in 1-12 months. Built with Python, Cloudflare, and GitHub Actions.
AI Developer
Two-agent development
Jan 2026 - Present (10 months)
Developed a two-agent system using Codex CLI and Claude Code for autonomous coding, testing, and committing. Resulted in 56 Python files, 1,009 tests, and 106 commits in 6 days.
Investment Strategy Tester
Personal Project
Jan 2026 - Present (10 months)
Developed an investment-strategy testing project with over 390 commits, 127 tests, and mutation testing that caught all 64 injected bugs. Used parallel agent workflows with independent review.
Independent Contractor
RoutineBridge
Jan 2024 - Present (2 years 10 months)
Independent contractor for web, automation and integrations. Builds customer portals, bank and REST API integrations, data pipelines and operational tools, using AI coding agents with independent checks.
Education
Degrees, certifications, and relevant coursework
Brno University of Technology
Bachelor's, Mechanical Engineering
2025 -
Pursuing a Bachelor's degree in Mechanical Engineering, currently in progress.
Evanjelická spojená škola, Martin (gymnázium)
School-leaving exam, General Education
Completed school-leaving exam at Evanjelická spojená škola, Martin (gymnázium) in 2025.
Junior Achievement Slovensko
Certificate, Financial Literacy
2021 - 2021
Earned the 'Viac ako peniaze' certificate in financial literacy in 2021.
Tech stack
Software and tools used professionally
Availability
Location
SlovakiaAuthorized to work in
Website
sebastiangalcik.comPortfolio
routinebridge.com/projektySalary expectations
Job categories
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