Jacek Galanciak

Full-stack Software Engineer

Full-stack engineer with 20+ years building production systems. Deep expertise in Ruby/Rails and JavaScript/React, designing scalable architectures for mission-critical systems.

  • Ruby, Rails
  • Claude Code
  • Heroku, Amazon Web Services
  • PostgreSQL, MongoDB
  • AMQP, RabbitMQ
  • system design, distributed systems
  • JavaScript, TypeScript
  • React, Svelte, Tailwind
  • software architecture, agile, continuous delivery

Proficient in multiple languages and frameworks. The listed stack reflects tools I favor for maintainable, well-architected systems across startup and enterprise contexts.

Ink Labs Limited (acquired by Pilot)

Senior Developer

2013 - 2014

Ruby, Objective-C (iOS/macOS), JavaScript development. Built Tapes, a lightweight screencasting app for macOS.

Sourcebits, Inc.

Technical Architect (Ruby)

2011 - 2014

Led web development team on platform for education and military clients. Provided architectural guidance across projects and established engineering standards.

OfertyMieszkan.pl

Developer, Co-founder

2010 - 2017

Sole engineer and architect. Built entire application including partner integrations, APIs, and infrastructure. Achieved operational stability requiring minimal intervention over 7-year lifespan.

agilope

Full-stack Developer, Co-founder

2008 - 2011

Co-founded agency delivering CMS, e-commerce, and intranet solutions. Technical lead and client liaison, handling requirements and specifications. Brought majority of new projects through business development.

Sport-TV sp. z o. o.

Software developer, system administrator

2008 - 2009

Built and maintained entire platform. Handled full-stack development and server administration.

yavanet sp. z o. o.

Web Developer

2007 - 2009

E-commerce platform development and maintenance. The system was responsible for handling sales of contact lenses and accessories, but it also provided an online platform for ophthalmologists to support their patients.

freelancing

PHP Developer, Python (Django) Developer

2005 - 2007

Delivered PHP and Python (Django) applications for various clients.

M.Sc. in Electronics, Digital Signal and Image Processing

Technical University of Lodz, graduated in 2010

Master's thesis: Functional concurrent programming for multi-core computers.

  • programming
  • guitar, piano
  • music
  • gaming
  • audio hardware
  • audio engineering