Karol Galanciak

Co-Founder

Poland13 yrs 6 mos experience

Most Likely To SwitchAI ML Practitioner

Key Highlights

Scaled engineering team to 20+ members.
Implemented AI-driven features for enhanced customer experience.
Achieved 350x improvement in data synchronization speed.

Stackforce AI infers this person is a SaaS technology leader with expertise in AI and distributed systems.

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Skills

Core Skills

Product StrategyAi AdoptionTechnology StrategyTeam LeadershipProduct InnovationDeveloper ProductivityCloud ArchitectureDistributed Systems ArchitectureRuby On RailsFull Stack Development

Other Skills

Decision-MakingProblem SolvingCommunicationManagementStrategic ThinkingLeadershipStrategic PlanningJavaScriptApache KafkaRabbitMQKubernetesAmazon Web Services (AWS)Test Driven DevelopmentPostgreSQLPython

About

CPTO & co-founder at Smily, formerly BookingSync, passionate and results-driven tech executive with over 13 years experience in building software to achieve business outcomes and over 8 years in leading high-performing engineering teams and driving technological innovation in the Short Term Rental industry. I excel at aligning product & technology strategy with business goals to fuel growth and operational excellence. At Smily (formerly BookingSync), I have successfully scaled our engineering team to 20+ members, introduced cutting-edge AI-driven and FinTech-oriented features, implemented a SPACE Framework to measure developer productivity and lead AI adoption in our teams, ultimately allowing us to compete with companies having over 10x more Product Managers and Software Engineers. My leadership philosophy centers around empowering remote/async teams, fostering a culture of continuous learning, adopting AI (especially Claude Code) across the entire product & tech organization, and driving strategic initiatives that deliver measurable business outcomes while ensuring work-life integration, which is the X Factor for ensuring top team performance. I am committed to developing future leaders and leveraging technology to transform businesses. Let's connect to discuss how we can drive innovation together.

Experience

13 yrs 6 mos

Total Experience

4 yrs 6 mos

Average Tenure

9 yrs 4 mos

Current Experience

Smily, formerly bookingsync

2 roles

Chief Product and Technology Officer (CPTO)

Promoted

Oct 2025 – Present · 7 mos · Remote

Leading both Product and Engineering functions end-to-end.
Full responsibility over the Roadmap, Product Strategy, stakeholders alignment, innovations, Tech Architecture, Leadership across functions and AI adoption.

Decision-MakingProblem SolvingCommunicationManagementStrategic ThinkingLeadership+4

Chief Technology Officer (CTO)

Jan 2017 – Oct 2025 · 8 yrs 9 mos · Remote

Technology Strategy: Development and implementation of the company’s technology strategy, aligning it with business objectives to drive growth and innovation
Team Leadership: Scaled the engineering team to 20+ members, fostering a collaborative and high-performance culture.
Product Innovation: Led the introduction of AI-driven features, enhancing customer experience and operational efficiency.
Developer Productivity: Implemented the SPACE Framework to improve developer productivity with a demonstrated improvements up to 50%
Cross-Functional Collaboration: Worked closely with other C-level executives to ensure technology initiatives support overall business goals.
Technology Architecture: Growing applications ecosystem to 29 distributed Ruby on Rails services/1500+ Docker containers on production
Cloud Architecture - Leading migration from self-managed components to fully AWS managed services resulting in over 30% cost reduction while improving at the same time security and reliability of the platform
Distributed Systems Architecture - 350x improvement in data synchronization speed between services by replacing HTTP API-based data synchronization between services with Kafka-based Change Data Capture using a custom framework
Security - Maintaining PCI DSS compliance for the platform processing credit card data
Giving back to the industry - Being a primary contributor to an engineering blog (https://www.smily.com/engineering), authoring and open-sourcing a significant number of internal frameworks, tools, and libraries (https://github.com/BookingSync/)

Ruby on RailsJavaScriptApache KafkaRabbitMQKubernetesAmazon Web Services (AWS)+10

Singularity labs

Owner / Distributed Systems Architect, Ruby on Rails & Ember.js consultant

Feb 2015 – Present · 11 yrs 3 mos · Remote · Remote

Ruby on Rails and Ember.js consulting.

Ruby on RailsEmber.js

Ragnarson

Senior Full Stack Developer

Jan 2015 – Oct 2016 · 1 yr 9 mos

Developing BookingSync application with microservices architecture using Ruby on Rails and JavaScript (Ember.js, jQuery)

Ruby on RailsJavaScriptFull Stack Development

Websynergia s.c.

Full Stack Developer

Jul 2012 – Dec 2014 · 2 yrs 5 mos · Lodz / remote

Advancing from junior developer to full stack developer and team leader, developing Ruby on Rails / JavaScript applications, managing server infrastructure with Chef

Ruby on RailsJavaScriptFull Stack Development