High-performance engineering meets world-class design. I help startups, businesses, and creators build bespoke web experiences that drive real revenue.
All 12 production web platforms engineered with custom UX, responsive layouts, and performance optimization.
Commercial climate engineering platform featuring bilingual catalog, energy ROI estimation calculator, and rapid engineer dispatch booking.
Solar energy calculator and panel selector providing live power output charts, net-metering simulation, and residential rooftop estimates.
High-urgency plumbing service portal with 1-tap emergency dispatch calling, transparent upfront pricing tables, and real-time technician ETA tracker.
Automotive service hub with computerized OBD-II diagnostics booking, transparent repair estimates, digital inspection logs, and fleet care plans.
High-end aesthetic clinic platform with interactive treatment selector, specialist calendar scheduling, virtual skin analysis, and gift shop.
Luxury Georgian property portal featuring interactive neighborhood map filters, 360° virtual tour player, mortgage ROI calculator, and lead routing.
Patient-centric dental practice web portal with online appointment check-in, procedure price breakdown, 3D smile makeover previews, and insurance validator.
Corporate law and litigation portal with confidential client intake forms, practice area case breakdowns, attorney profiles, and retainer calculator.
Turnkey office and industrial cleaning service platform with instant square-footage price estimator, recurring contract setup, and eco-certified safety logs.
High-intensity athletic gym web application with live class schedule timeline, membership tier checkout, trainer profiles, and member workout dashboard.
E-commerce artisan pastry and custom cake ordering experience with 3D cake builder, flavor customizer, automated delivery scheduling, and gift messaging.
Apple & PC hardware diagnostic portal with live repair cost estimator, mail-in tracking dashboard, warranty certificate generator, and express queue booking.
Bespoke desktop apps, open-source code editors, real-time trading dashboards, and full-scale AI interactive playgrounds.
Full-stack e-commerce platform with real-time forex signals, automated trading dashboards, and AI-powered market analysis tools.
A rich interactive catalog of 20+ AI-powered experiments, 3D WebGL simulations (Galaxy Tour, Solar System, Fractal Universe, Liquid Chrome), mini-games (Hit the Ship, Water Sort, Tanghulu ASMR), and multi-agent model benchmarks (GLM 5.2, Qwen 3.7 MAX, Claude 3.7, Gemini 3.6 Flash).
Run Codex CLI with any AI provider — OpenAI, Anthropic, Google, OpenRouter. One launcher, every model, zero vendor lock-in.
Five complete end-to-end simulation games — each with a real Monopoly board, AI bots, local pass-and-play, Web Audio sound, and full 6-language support.
Escape the 9-to-5 rat race, build digital cashflow assets, and graduate to the Outer High-Roller Freedom Track.
Scale a tech company from a $25k garage MVP to a $1B Unicorn IPO while managing GPU compute & burn rate.
Build a food & retail empire from sidewalk taco carts to Michelin-starred restaurants and luxury rooftop lounges.
Balance Wealth, Health, Relationships and Passion to unlock complete life harmony without burnout.
Tabletop coding battler: tame CSS slimes and memory-leak goblins, drink espresso mana, defeat the Legacy Monolith.
Unified 6×6 Monopoly engine · AI bots · 2–4 players · Web Audio · 6 languages (EN/RU/FR/ES/AR/HE).
Enter Grand Arcade →From concept to production deployment, I deliver complete end-to-end web engineering tailored to your business goals. No templates, no shortcuts.
Beautiful, responsive websites built from scratch. Landing pages, portfolios, business sites, and e-commerce storefronts that look stunning on every device and convert visitors into customers.
Integrate cutting-edge AI into your product. Chat interfaces, content generators, smart search, recommendation engines, and automated workflows powered by models like Claude 3.7, GPT, GLM-5, and Gemini.
Decentralized applications, smart contracts, token systems, and on-chain tools. From concept to mainnet deployment, I build Web3 products that are secure, user-friendly, and actually useful.
| Engagement Model | Best For | Typical Timeline | Deliverables |
|---|---|---|---|
| Landing Page Sprint | Launches, campaigns, and portfolio sites that need to convert fast | 1–2 weeks | Custom design, responsive build, SEO & analytics setup |
| Full Product Build | SaaS dashboards, e-commerce, and AI-powered web applications | 3–8 weeks | Architecture, UX/UI, full-stack development, deployment |
| Ongoing Partnership | Teams needing continuous feature delivery and maintenance | Monthly retainer | Dedicated hours, priority support, performance monitoring |
Real reviews from clients and startup founders. My goal is always to exceed expectations and deliver high-converting results.
“Roman built my entire web presence from scratch. The site is fast, looks incredible, and my clients love it. He really understood what I needed before I even fully explained it.”
“Working with Roman was effortless. He delivered a complex AI integration ahead of schedule, and the code quality was outstanding. Highly recommend for any web or AI project.”
“The Web3 app Roman built for us was exactly what we needed. Clean interface, solid smart contracts, and he even helped us understand the whole process. A true professional.”
Modern, battle-tested tools and frameworks used to build fast, secure, and resilient web applications.
From the initial strategy call to full production launch and post-release support.
Deep dive into business KPIs, target demographic, competitive positioning, and technical requirements.
High-fidelity interactive prototypes balancing modern visual aesthetics with conversion-first psychology.
Clean, component-driven development with 100/100 Lighthouse performance, SEO schema, and robust APIs.
Automated CI/CD deployment, SSL certificate hardening, CDN caching, and comprehensive hand-off training.
Select the features and components you need, add custom notes or requirements, and submit for a precise, tailored manual quote within 2 business hours.
Active contributor to modern developer tools, AI workflows, and dedicated forge servers.
Open-source frontend components, automation scripts, and full-stack project boilerplates.
Private CI/CD build runners, secure mirror instances, and automated Docker staging pipelines.
Zero-downtime rolling updates, automated TLS provisioning, and distributed edge CDN protection.
Deep-dives into modern frontier AI models, 3D WebGL graphics, and full-stack performance.

Comprehensive token speed, logic reasoning, and code generation benchmarks for production agentic applications.

Exploring fluid mathematical equations, organic vertex displacement, and GPU optimization on the web.

Curated insights on multi-agent software engineering, MCP tool integration, and edge-first inference.
Everything you need to know about working with Rommark Engineering — services, pricing, timelines, and technologies.
Rommark Engineering provides custom website design and full-stack development, AI-powered tool integration, and Web3 & blockchain engineering. Every project is built from scratch with no templates — covering strategy, UX/UI design, modern engineering, production deployment, and ongoing scaling for startups, businesses, and creators worldwide.
rommark.dev is the portfolio of Roman RyzenAdvanced, a Senior Web Architect & Creative Technologist based in Tbilisi, Georgia (UTC+4). Roman has shipped 12+ live projects spanning landing pages, AI tools, brain-game apps, and blockchain products, and works directly with clients from discovery through launch and scale.
Pricing depends on scope. Landing-page sprints typically start around $1,200, while full product builds and AI integrations are quoted individually. Use the interactive Scope Builder on rommark.dev to configure features and receive an instant estimate, then request a fixed proposal within two business hours.
Most landing pages ship in 1-2 weeks, and full products take 3-8 weeks depending on complexity. Delivery follows a four-step process — Discovery & Strategy, UX/UI Architecture, Modern Engineering, and Launch & Scale — with weekly demo links so you can review progress at every stage.
The core stack includes React, Next.js, TypeScript, Node.js, Python, and Go on the engineering side, plus Three.js and WebGL for interactive 3D experiences. Projects run on PostgreSQL, Docker, and Nginx, with Tailwind CSS for design systems and Solidity for Web3 and blockchain work.
Send a brief through the on-page inquiry form or email rommark@gmx.com describing your timeline, goals, and desired deliverables. You will get a guaranteed response within two business hours, a free strategy call to define scope, and a fixed-price proposal before any work begins.