# Tall Karol > Fractional and project-based engineering for startups and agencies — websites, web apps, systems integration, and automation. Tall Karol is a solo engineering studio. I work directly with founders and agency leads who need senior execution without a full-time hire. This file is a curated map of the public site for language models and agents. ## Primary - [Home](https://www.tallkarol.com/): Fractional and project-based engineering overview. - [Services](https://www.tallkarol.com/services): What I build and how engagements are scoped. - [How it works](https://www.tallkarol.com/how-it-works): Process, cadence, and what working together looks like. - [Retainer](https://www.tallkarol.com/retainer): Ongoing senior engineering on a monthly hours bank. - [Contact](https://www.tallkarol.com/contact): Start a project or ask a question. ## Services - [Web development](https://www.tallkarol.com/services/web-development): Marketing sites and high-performance Next.js builds. - [App development](https://www.tallkarol.com/services/app-development): Custom web applications and internal tools. - [Systems integration](https://www.tallkarol.com/services/systems-integration): APIs, CRMs, and connecting business systems. - [AI integration](https://www.tallkarol.com/services/ai-integration): Practical AI features wired into existing workflows. - [Business systems consulting](https://www.tallkarol.com/services/business-systems-consulting): Architecture and automation strategy. ## Work & proof - [Projects](https://www.tallkarol.com/projects): Selected builds and outcomes. - [Case studies](https://www.tallkarol.com/case-studies): Problems, constraints, solutions, and measurable results. - [Partners](https://www.tallkarol.com/partners): Agencies and collaborators I work with. ## Why Tall Karol - [Why](https://www.tallkarol.com/why): Positioning and fit. - [Story](https://www.tallkarol.com/why/story): Background and how the studio works. - [Pitch](https://www.tallkarol.com/why/pitch): The case for fractional and project-based engineering. - [Promise](https://www.tallkarol.com/why/promise): Commitments on quality, communication, and delivery. ## Knowledge base - [Knowledge base index](https://www.tallkarol.com/knowledge-base): Articles on fractional engineering, hiring, and technical practice. - [What is a fractional engineer?](https://www.tallkarol.com/knowledge-base/what-is-a-fractional-engineer): Definition and when it makes sense. - [Fractional engineer vs freelancer](https://www.tallkarol.com/knowledge-base/fractional-engineer-vs-freelancer): How the models differ. - [Fractional engineer vs agency](https://www.tallkarol.com/knowledge-base/fractional-engineer-vs-agency): Tradeoffs between solo senior work and agencies. - [Benefits of a fractional software engineer](https://www.tallkarol.com/knowledge-base/benefits-of-a-fractional-software-engineer): Outcomes clients typically see. - [When to hire a fractional engineer](https://www.tallkarol.com/knowledge-base/when-to-hire-a-fractional-engineer): Signals that the model fits. - [How much does a fractional engineer cost?](https://www.tallkarol.com/knowledge-base/how-much-does-a-fractional-engineer-cost): Pricing ranges and what drives cost. - [Fractional web developer for agencies](https://www.tallkarol.com/knowledge-base/fractional-web-developer-for-agencies): White-label and overflow engineering for agencies. - [What is a forward deployed engineer?](https://www.tallkarol.com/knowledge-base/what-is-a-forward-deployed-engineer): Embedded engineering explained. - [Keeping 100 Lighthouse with a strict CSP](https://www.tallkarol.com/knowledge-base/keeping-100-lighthouse-with-a-strict-csp): Performance and security practices on this site. ## Optional - [Sitemap](https://www.tallkarol.com/sitemap.xml): Machine-readable list of public URLs. - [Robots](https://www.tallkarol.com/robots.txt): Crawler directives for search engines.