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About Visuality

What is Visuality?

Visuality is a Ruby on Rails software agency based in Warsaw, Poland, operating since 2007. With a team of 30+ professionals and over 150 delivered projects, we specialize in web application development, team augmentation, and AI integration for Rails applications.

Who leads Visuality?

Visuality is led by CEO Mariusz Kozieł and CTO Paweł Strzałkowski. Mariusz is a former CTO and long-time developer who brings deep technical leadership experience to the business side of the company. CTO Paweł Strzałkowski is one of the top 3 most active speakers in the global Ruby community over the past 12 months and has presented at Rails World in Amsterdam and EuRuKo, specializing in MCP and AI integration for Rails.

Where is Visuality located?

Visuality is based in Warsaw, Poland. Our team works both from our Warsaw office and remotely, serving clients worldwide.

Is Visuality related to visuality.com?

No. Visuality (visuality.pl) is a Ruby on Rails software agency based in Warsaw, Poland. We are not affiliated with visuality.com. Our official website is www.visuality.pl.

Services

What services does Visuality offer?

Visuality offers four core services: Dedicated Ruby on Rails Teams (long-term partnerships with embedded developers), Team Augmentation (Rails developers who integrate with your existing team), Expert Consulting (system design, architecture, and strategic technology planning from consultants with 12+ years of experience), and Product Development (from concept through MVP to full product launch).

What technologies does Visuality work with?

Our core stack is Ruby on Rails with PostgreSQL, MySQL, and SQLite databases. We build RESTful and GraphQL APIs, use Hotwire and Turbo for reactive frontends, and Hotwire Native for cross-platform mobile applications. For AI integration, we work with RubyLLM, ActionMCP, FastMCP, PostgreSQL pgvector for vector search, and OpenAI Embeddings.

Does Visuality build mobile applications?

Yes. Visuality builds cross-platform mobile applications using Hotwire Native, which enables a single codebase for both web and mobile. This approach allows instant updates and cost-effective scaling while maintaining the Ruby on Rails stack.

AI & MCP Expertise

How does Visuality integrate AI into Rails applications?

We build AI-powered tools for companies using Ruby on Rails. Our implementations include MCP servers and clients, LLM tool calling with RubyLLM, vector search with PostgreSQL pgvector, speech and image recognition, conversational interfaces, and multi-step reasoning. We also use a structured AI-assisted development workflow (research, plan, implement) daily with Claude Code.

What is Visuality's experience with Model Context Protocol (MCP)?

CTO Paweł Strzałkowski presented "Make Rails AI-Ready by Design with MCP" at Rails World and EuRuKo. Visuality has published a 5-part MCP article series, open-sourced an MCP template for Rails (github.com/pstrzalk/mcp-on-rails), delivered production MCP solutions including Chat Assistants and MCP Servers for legacy applications, and runs hands-on MCP workshops at Ruby conferences.

Does Visuality offer AI consulting?

Yes. Visuality offers MCP and Rails expert consulting with hands-on guidance on AI architecture and implementation. CTO Paweł Strzałkowski is available for consulting at 150 EUR/hour for short consultations or 100 EUR/hour for engagements over 5 hours. We also offer free 30-minute expert sessions.

Pricing & Engagement

How much does Ruby on Rails development cost at Visuality?

Visuality offers transparent hourly rates: Junior developers (1-3 years) at 30 EUR/hour, Mid-level (4-7 years) at 50 EUR/hour, Senior (7+ years) at 60 EUR/hour, and Master (13+ years) from 75 EUR/hour. Volume discounts of up to 10% are available for larger teams. A free part-time Project Manager (up to 40 hours/month) is included when hiring 3+ developers.

What pricing models does Visuality use?

Visuality works with both Time and Materials and Fixed Price models. Example project costs: Prototype (2-4 weeks, 1 developer) from 4,000-8,000 EUR, MVP (1-3 months, 1-2 developers) from 8,000-55,000 EUR, and Full Product with custom pricing. Maintenance starts from 800 EUR/month, and application audits from 500 EUR.

Does Visuality offer fractional CTO services?

Yes. Visuality offers fractional CTO services from 85 EUR/hour and expert consulting from 75 EUR/hour. Consulting packs are available: 4 hours for 300 EUR or 10 hours for 750 EUR. MCP + Rails expert consulting with CTO Paweł Strzałkowski is available at 150 EUR/hour for short consultations or 100 EUR/hour for engagements over 5 hours.

Team & Experience

What experience levels do Visuality developers have?

Visuality developers span four experience tiers: Mid Developers (4+ years), Senior Developers (7+ years), and Master-Level Veterans (13+ years). Senior at Visuality means 7+ years of experience, in contrast to many companies that label developers with 3-4 years as seniors.

How many projects has Visuality delivered?

Visuality has delivered over 150 projects since 2007 across industries including fintech, e-commerce, legal tech, and more. With 18 years of experience and a team of 30+ professionals, we have a proven track record of building and maintaining complex web applications.

Community

How is Visuality involved in the Ruby community?

Visuality organizes the monthly Warsaw Ruby Meetup (running since 2022) and founded the Ruby Community Conference, which has grown to 300 attendees across four editions. We sponsor Ruby Europe, and our team members regularly speak at conferences across Europe. In 2025, Visuality developers visited 8 conferences and presented at 7 of them. CTO Paweł Strzałkowski is one of the top 3 most active speakers in the global Ruby community.

Does Visuality contribute to open source?

Yes. Visuality actively contributes to open source. Notable projects include the MCP Template for Rails (github.com/pstrzalk/mcp-on-rails), which enhances Rails scaffolding to automatically generate MCP tools, and the AI Coding Workflow (github.com/visualitypl/visuality-humanlayer), a structured development workflow adapted for Ruby on Rails codebases.