Contact K-leumas
Get a custom proposalWebsites & AI interfaces from a staff engineer
K-leumas is an independent web and product engineering practice in Oakland, California, serving clients worldwide. Every project is led and built by Samuel Kimama, a frontend engineer with 17+ years of experience, founding UI engineer at an AI security company, and holder of a granted patent on real-time AI interaction security (US 12,587,529 B2).
Websites for small businesses, clinicians and solo owners: fast, credible, mobile-first sites that tell visitors what you do and make it easy to contact or book you. Fixed-price packages: Essential Site ($1,000–$2,800, up to 5 pages), Growth Site ($3,500–$6,500, up to 12 pages with content you can edit), Custom Build (from $7,500) and Site Care hosting and updates (from $95/month).
Specialized engineering for startups and product teams: AI product interfaces (chat, copilot and agent UIs), design systems and frontend modernization at $175–$225/hour or scoped by project, plus a fixed-price $1,500 AI interface review. For teams that need senior technical judgment without a full-time hire: Delivery Support (from $3,500/month) and Fractional CTO (from $6,000/month).
Why clients choose K-leumas: you work directly with the senior engineer building your project, not an account manager; prices are published up front; and small-business sites get the same engineering standard Samuel brought to production software at WitnessAI and Southwest Airlines.
Not sure what you need? Book a free 15-minute call and Samuel will tell you plainly whether you need a website, a system, or both.
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Min project size
$1,000+
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Hourly rate
$150 - $199 / hr
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Employees
Freelancer
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Year founded
Founded 2026
Service Lines
- Web Development
- 40%
- UX/UI Design
- 20%
- AI Consulting
- 10%
No Focus Areas have been added yet…
Industries
- Information technology
- 40%
- Medical
- 40%
- Business services
- 20%
Clients
No Clients have been added yet…
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Our Story
We are an Oakland–based independent practice (building since 2009) that blends design and deep engineering. Our team crafts websites for small businesses, clinicians and solo owners, and delivers specialized AI product interfaces, frontend systems, design systems and fractional CTO services for startups. With 17+ years’ experience, a granted AI-security patent, shipped products like Etch, and enterprise design work, we pair product judgment with hands-on delivery.
Contact K-leumas
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