Detailed experience

Software engineer, product builder and CTO

Twenty years of hands-on experience connecting product decisions, architecture and implementation. I work with founders, business stakeholders and engineering teams to turn complex problems into reliable software.

LinkedIn GitHub

Experience

From product direction to production

Roles and work most relevant to product, software and technical leadership.

July 2022–presentCurrent

Co-founder & CTO

Deliverists.IO

Product direction, architecture, software delivery and hands-on implementation across company products and selected client engagements.

Connect business objectives with product scope and technical direction.
Design and implement web products, integrations and AI-assisted workflows.
Lead important delivery decisions while remaining directly involved in the technology.

November 2012–2026Previous role

Software Engineer

Yelp

Designed, developed and maintained scalable web and mobile applications across Yelp's technology stack, working end to end from system and API design through delivery and production support.

Collaborated with product managers, designers and engineers to deliver product features across distributed teams.
Wrote maintainable, well-tested code, reviewed changes and helped improve engineering practices.
Diagnosed and resolved issues across the stack, including production systems and internal engineering workflows.
Specialised in Mobile API, release engineering and internationalisation (i18n).
Mentored engineers, conducted technical interviews and advocated for appropriate adoption of emerging technologies.

July 2010–November 2012

Ruby on Rails Developer

Qype

Product engineering and browser-test automation before Qype became part of Yelp.

Developed Ruby on Rails product features.
Built WatirCukeFM, a web interface for browser automation and test visibility.
Worked with Cucumber, WebDriver and Ruby-based testing tools.

2006–2010

Early product and software work

BenQ Poland and independent client projects

Telecommunications, PHP and Ruby on Rails work, including requirements, architecture, implementation, testing and deployment.

Selected experience

Products and AI platforms

Company products are co-built with the Deliverists.IO team. Client work is labelled separately.

Deliverists.IO product

Quento

Invoicing and business automation with AI-assisted workflows, multi-currency support and KSeF integration.

Contribution: Product direction, architecture, implementation and AI integrations.

Deliverists.IO product

ChatlyBot

AI-powered customer support connected to company knowledge and documentation.

Contribution: Product planning, AI architecture, software development and business-data integration.

Client platform contribution

Swifty

AI travel-agent platform supporting conversational booking through channels such as WhatsApp, email and voice.

Contribution: Core platform engineering and advanced AI-agent development as part of a Deliverists.IO engagement.

Capabilities

Product judgment backed by engineering depth

Product & technical direction

Discovery, MVP scoping, architecture, delivery planning, risk assessment and product modernisation.

Hands-on software delivery

Backend and frontend development, APIs, integrations, deployment, monitoring and operational workflows.

AI agents & automation

Agent workflows, RAG, model integrations, MCP, permissions, approval boundaries and quality monitoring.

Technical leadership

Architecture reviews, estimation, delivery assessment, founder advisory and engineering collaboration.

Ruby on RailsPythonJavaScriptReactPostgreSQLAWSHotwireAI integrationsDevOps

Education

Academic background

2003–2005

Master of Science, Computer Science

DePaul University

2000–2005

Master of Science, Computer Science

Wyższa Szkoła Biznesu — NLU

2009–2010

Post-master’s studies, Microsoft Visual Studio programming

Wyższa Szkoła Biznesu — NLU

Professional training

Co-Active Coaching Fundamentals

Coaching certification

Contact

Need product and technical experience in one collaboration?

gs@deliverists.io

Hamburg, Germany · Working internationally

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