You will get React Developer | Full Stack developer React Node
Project details
What Sets Me Apart
I combine strong product thinking with hands-on engineering. I don’t just build features—I focus on solving real business problems, communicating clearly, delivering on time, and owning the product end-to-end as a true technical partner.
Technologies I Use
React, Next.js, TypeScript, Node.js, Express/NestJS, REST & GraphQL APIs, PostgreSQL/MongoDB, authentication & security best practices, cloud deployment, CI/CD, and modern tooling for scalable apps.
What Clients Get
Clean, maintainable code, scalable architecture, fast iterations, transparent communication, and a production-ready product aligned with business goals—not just a finished build.
I combine strong product thinking with hands-on engineering. I don’t just build features—I focus on solving real business problems, communicating clearly, delivering on time, and owning the product end-to-end as a true technical partner.
Technologies I Use
React, Next.js, TypeScript, Node.js, Express/NestJS, REST & GraphQL APIs, PostgreSQL/MongoDB, authentication & security best practices, cloud deployment, CI/CD, and modern tooling for scalable apps.
What Clients Get
Clean, maintainable code, scalable architecture, fast iterations, transparent communication, and a production-ready product aligned with business goals—not just a finished build.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$51
|
Standard
$3,800
|
Advanced
$7,500
|
|---|---|---|---|
| Delivery Time | 2 days | 10 days | 20 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 4 | 8 |
Design Customization | - | - | - |
Content Upload | - | ||
Responsive Design | - | - | |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$20
Additional Page
(+ 2 Days)
+$20Frequently asked questions
2 reviews
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KL
Kirill L.
May 10, 2022
Convert design to HTML/CSS
Great to work with, very communicative.
DS
Danial S.
Feb 21, 2022
Need frontend HTML developer to fix my page
Amazing talent will hire him again
About Danyil
Full-Stack Architect for Agentic & Autonomous AI Systems
Kyiv, Ukraine - 6:08 am local time
Next.js | NestJS | Python | PostgreSQL | LLM Orchestration | Multi-Model AI
Build fast, scalable, and intelligent systems — without tech debt.
I help startups and product teams turn ideas into production-ready SaaS platforms, internal tools, and AI-native products powered by autonomous agents, structured LLM workflows, and multi-model orchestration (OpenAI, Claude, Gemini, Grok, Kimi, and custom agent frameworks like Clawbot-style systems).
From system architecture to database design, multi-agent orchestration, AI integration, and deployment — everything is built for performance, clarity, adaptability, and long-term maintainability.
WHAT YOU GET
🏗 Scalable, AI-ready architecture
Clean system foundations designed for growth, agent workflows, tool execution, and zero rewrites.
⚡ High-performance frontend systems
Fast, SEO-optimized Next.js applications (App Router, SSR, edge rendering).
🔐 Structured backend services
Maintainable NestJS and Python backends designed for scale, AI orchestration, and modular expansion.
🤖 Advanced Agentic AI Integration
Autonomous and semi-autonomous systems using:
OpenAI (GPT-4/4o)
Claude
Gemini
Grok
Kimi AI
Clawbot-style multi-agent systems
Tool calling, structured outputs, memory layers, RAG, and workflow engines
🧠 Multi-Model Orchestration
Vendor-agnostic LLM routing layers for performance, cost optimization, fallback logic, and intelligent model selection.
📦 Predictable delivery
Clear technical decisions aligned with business, product, and revenue goals.
🤝 Strategic engineering partnership
I think in systems — not just tickets.
PROVEN RESULTS
🚀 Production-grade Next.js 13–15 applications with App Router & performance optimization
🧩 Scalable NestJS & Node.js service architectures
🤖 Agent-based AI features with structured outputs, tool execution & memory
🧠 Multi-agent orchestration systems (planner → executor → validator loops)
💳 Stripe subscription systems (metered billing, access logic, webhooks)
📊 Real-time financial & analytics dashboards
🗄 Optimized PostgreSQL schemas (Prisma & SQL-first modeling)
🔄 CI/CD optimization reducing infrastructure costs by ~20%
🌐 Web3 integrations (ERC-20, vesting contracts, wallet flows)
WHAT I CAN BUILD FOR YOU
💼 SaaS platforms built for long-term scale
🧪 Lean but production-ready MVPs
🏢 Internal automation systems
📊 Data & analytics platforms
🤖 AI-native applications with autonomous agents
🧠 Multi-agent systems (planner / researcher / executor architectures)
🧬 Clawbot-style structured reasoning systems
🧩 Cross-model LLM infrastructures (OpenAI + Claude + Gemini + Grok + Kimi)
💳 Subscription & billing infrastructures
🎓 Education & gated-content platforms
🔗 Web3-connected applications
💡 Lovable-style rapid product builds with production-grade foundations
TECHNOLOGY STACK
Frontend
⚛ React
▲ Next.js (13–15) – App Router, SSR, Edge
🟦 TypeScript
🎨 Tailwind CSS
🧩 shadcn/ui
🖌 Material UI
Backend
🟢 Node.js
🧱 NestJS
🐍 Python (AI pipelines, orchestration, automation services)
🌐 Express
🔌 REST APIs
🧩 Modular & microservice architectures
Data
🐘 PostgreSQL
🍃 MongoDB
🔷 Prisma
⚡ Drizzle ORM
AI & Orchestration
🤖 OpenAI, Claude, Gemini, Grok, Kimi AI
🧠 Agentic system design & orchestration layers
🧩 Clawbot-style reasoning frameworks
🔄 Tool calling & structured outputs
📊 Retrieval-Augmented Generation (RAG) systems
🧠 Memory layers (vector + structured memory)
🔌 External API & tool integrations
🧭 Model routing & fallback logic
⚡ Cost & latency-optimized LLM selection
DevOps & Quality
🐳 Docker
⚙ GitHub Actions
🚀 Reliable staging & production pipelines
🗂 Monorepos
✅ E2E & integration testing
WHAT YOU DON’T HAVE TO WORRY ABOUT
🧨 Fragile architectures
🐌 Slow, bloated applications
📉 Messy codebases
🔁 “Rewrite it later” decisions
🤖 AI features duct-taped onto legacy systems
🔌 Vendor lock-in to a single LLM provider
Everything is designed as a cohesive system — frontend, backend, database, and AI working together as a scalable, adaptable infrastructure.
Steps for completing your project
After purchasing the project, send requirements so Danyil can start the project.
Delivery time starts when Danyil receives requirements from you.
Danyil works on your project following the steps below.
Revisions may occur after the delivery date.
Define clear project goals, scope, and success criteria
Assign a single point of contact for decisions and feedback